def model_train(bert_model,
max_seq_length,
do_lower_case,
num_train_epochs,
train_batch_size,
gradient_accumulation_steps,
learning_rate,
weight_decay,
loss_scale,
warmup_proportion,
processor,
device,
n_gpu,
fp16,
cache_dir,
local_rank,
dry_run,
no_cuda,
output_dir=None):
label_map = processor.get_labels()
if gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(gradient_accumulation_steps))
train_batch_size = train_batch_size // gradient_accumulation_steps
train_dataloader = processor.get_train_examples(train_batch_size,
local_rank)
# Batch sampler divides by batch_size!
num_train_optimization_steps = int(
len(train_dataloader) * num_train_epochs / gradient_accumulation_steps)
if local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size(
)
# Prepare model
cache_dir = cache_dir if cache_dir else os.path.join(
str(PYTORCH_PRETRAINED_BERT_CACHE),
'distributed_{}'.format(local_rank))
model = BertForTokenClassification.from_pretrained(
bert_model, cache_dir=cache_dir, num_labels=len(label_map))
if fp16:
model.half()
model.to(device)
if local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
weight_decay
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
if fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer, static_loss_scale=loss_scale)
warmup_linear = WarmupLinearSchedule(
warmup=warmup_proportion, t_total=num_train_optimization_steps)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=learning_rate,
warmup=warmup_proportion,
t_total=num_train_optimization_steps)
warmup_linear = None
global_step = 0
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_dataloader))
logger.info(" Batch size = %d", train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
logger.info(" Num epochs = %d", num_train_epochs)
model_config = {
"bert_model": bert_model,
"do_lower": do_lower_case,
"max_seq_length": max_seq_length,
"label_map": label_map
}
def save_model(lh):
if output_dir is None:
return
output_model_file = os.path.join(output_dir,
"pytorch_model_ep{}.bin".format(ep))
# Save a trained model and the associated configuration
model_to_save = model.module if hasattr(
model, 'module') else model # Only save the model it-self
torch.save(model_to_save.state_dict(), output_model_file)
output_config_file = os.path.join(output_dir, CONFIG_NAME)
with open(output_config_file, 'w') as f:
f.write(model_to_save.config.to_json_string())
json.dump(model_config,
open(os.path.join(output_dir, "model_config.json"), "w"))
lh = pd.DataFrame(lh, columns=['global_step', 'loss'])
loss_history_file = os.path.join(output_dir,
"loss_ep{}.pkl".format(ep))
lh.to_pickle(loss_history_file)
def load_model(epoch):
if output_dir is None:
return False
output_model_file = os.path.join(
output_dir, "pytorch_model_ep{}.bin".format(epoch))
if not os.path.exists(output_model_file):
return False
logger.info("Loading epoch {} from disk...".format(epoch))
model.load_state_dict(
torch.load(output_model_file,
map_location=lambda storage, loc: storage
if no_cuda else None))
return True
model.train()
for ep in trange(1, int(num_train_epochs) + 1, desc="Epoch"):
if dry_run and ep > 1:
logger.info("Dry run. Stop.")
break
if load_model(ep):
global_step += len(train_dataloader) // gradient_accumulation_steps
continue
loss_history = list()
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
with tqdm(total=len(train_dataloader), desc=f"Epoch {ep}") as pbar:
for step, batch in enumerate(train_dataloader):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
loss = model(input_ids, segment_ids, input_mask, label_ids)
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if gradient_accumulation_steps > 1:
loss = loss / gradient_accumulation_steps
if fp16:
optimizer.backward(loss)
else:
loss.backward()
loss_history.append((global_step, loss.item()))
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
pbar.update(1)
mean_loss = tr_loss * gradient_accumulation_steps / nb_tr_steps
pbar.set_postfix_str(f"Loss: {mean_loss:.5f}")
if dry_run and len(loss_history) > 2:
logger.info("Dry run. Stop.")
break
if (step + 1) % gradient_accumulation_steps == 0:
if fp16:
# modify learning rate with special warm up BERT uses
# if args.fp16 is False, BertAdam is used that handles this automatically
lr_this_step = learning_rate * warmup_linear.get_lr(
global_step, warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
save_model(loss_history)
return model, model_config
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument(
"--data_dir",
default=None,
type=str,
required=True,
help=
"The input data dir. Should contain the .tsv files (or other data files) for the task."
)
parser.add_argument(
"--bert_model",
default=None,
type=str,
required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-large-cased, bert-base-multilingual-uncased, "
"bert-base-multilingual-cased, bert-base-chinese.")
parser.add_argument("--task_name",
default=None,
type=str,
required=True,
help="The name of the task to train.")
parser.add_argument(
"--output_dir",
default=None,
type=str,
required=True,
help=
"The output directory where the model predictions and checkpoints will be written."
)
parser.add_argument("--train_size",
default=99999999999,
type=int,
help="The size of the training dataset.")
## Other parameters
parser.add_argument(
"--cache_dir",
default="",
type=str,
help=
"Where do you want to store the pre-trained models downloaded from s3")
parser.add_argument(
"--max_seq_length",
default=128,
type=int,
help=
"The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--do_train",
action='store_true',
help="Whether to run training.")
parser.add_argument("--do_eval",
action='store_true',
help="Whether to run eval on the dev set.")
parser.add_argument(
"--do_lower_case",
action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument("--eval_batch_size",
default=8,
type=int,
help="Total batch size for eval.")
parser.add_argument("--learning_rate",
default=5e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs",
default=3.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument(
"--warmup_proportion",
default=0.1,
type=float,
help=
"Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument(
'--gradient_accumulation_steps',
type=int,
default=1,
help=
"Number of updates steps to accumulate before performing a backward/update pass."
)
parser.add_argument(
'--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--loss_scale',
type=float,
default=0,
help=
"Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument('--server_ip',
type=str,
default='',
help="Can be used for distant debugging.")
parser.add_argument('--server_port',
type=str,
default='',
help="Can be used for distant debugging.")
args = parser.parse_args()
if args.server_ip and args.server_port:
# Distant debugging - see https://code.visualstudio.com/docs/python/debugging#_attach-to-a-local-script
import ptvsd
print("Waiting for debugger attach")
ptvsd.enable_attach(address=(args.server_ip, args.server_port),
redirect_output=True)
ptvsd.wait_for_attach()
processors = {
"cola": ColaProcessor,
"mnli": MnliProcessor,
"mnli-mm": MnliMismatchedProcessor,
"mrpc": MrpcProcessor,
"sst-2": Sst2Processor,
"sts-b": StsbProcessor,
"qqp": QqpProcessor,
"qnli": QnliProcessor,
"rte": RteProcessor,
"wnli": WnliProcessor,
}
output_modes = {
"cola": "classification",
"mnli": "classification",
"mrpc": "classification",
"sst-2": "classification",
"sts-b": "regression",
"qqp": "classification",
"qnli": "classification",
"rte": "classification",
"wnli": "classification",
}
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logging.basicConfig(
format='%(asctime)s - %(levelname)s - %(name)s - %(message)s',
datefmt='%m/%d/%Y %H:%M:%S',
level=logging.INFO if args.local_rank in [-1, 0] else logging.WARN)
logger.info(
"device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".
format(device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train and not args.do_eval:
raise ValueError(
"At least one of `do_train` or `do_eval` must be True.")
if os.path.exists(args.output_dir) and os.listdir(
args.output_dir) and args.do_train:
raise ValueError(
"Output directory ({}) already exists and is not empty.".format(
args.output_dir))
if not os.path.exists(args.output_dir):
os.makedirs(args.output_dir)
task_name = args.task_name.lower()
if task_name not in processors:
raise ValueError("Task not found: %s" % (task_name))
processor = processors[task_name]()
output_mode = output_modes[task_name]
label_list = processor.get_labels()
num_labels = len(label_list)
tokenizer = BertTokenizer.from_pretrained(args.bert_model,
do_lower_case=args.do_lower_case)
train_examples = None
num_train_optimization_steps = None
if args.do_train:
if (task_name == "sst-2"):
train_examples = processor.get_train_examples(
args.data_dir, args.train_size)
else:
train_examples = processor.get_train_examples(args.data_dir)
num_train_optimization_steps = int(
len(train_examples) / args.train_batch_size /
args.gradient_accumulation_steps) * args.num_train_epochs
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size(
)
# Prepare model
cache_dir = args.cache_dir if args.cache_dir else os.path.join(
str(PYTORCH_PRETRAINED_BERT_CACHE), 'distributed_{}'.format(
args.local_rank))
model = BertForSequenceClassification.from_pretrained(
args.bert_model, cache_dir=cache_dir, num_labels=num_labels)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer,
static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=num_train_optimization_steps)
global_step = 0
nb_tr_steps = 0
tr_loss = 0
if args.do_train:
train_features = convert_examples_to_features(train_examples,
label_list,
args.max_seq_length,
tokenizer, output_mode)
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
all_input_ids = torch.tensor([f.input_ids for f in train_features],
dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in train_features],
dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in train_features],
dtype=torch.long)
if output_mode == "classification":
all_label_ids = torch.tensor([f.label_id for f in train_features],
dtype=torch.long)
elif output_mode == "regression":
all_label_ids = torch.tensor([f.label_id for f in train_features],
dtype=torch.float)
train_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
if args.local_rank == -1:
train_sampler = RandomSampler(train_data)
else:
train_sampler = DistributedSampler(train_data)
train_dataloader = DataLoader(train_data,
sampler=train_sampler,
batch_size=args.train_batch_size)
warmup_linear_schedule = WarmupLinearSchedule(
args.warmup_proportion, num_train_optimization_steps)
model.train()
for _ in trange(int(args.num_train_epochs), desc="Epoch"):
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
for step, batch in enumerate(
tqdm(train_dataloader, desc="Iteration")):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
# define a new function to compute loss values for both output_modes
logits = model(input_ids, segment_ids, input_mask, labels=None)
if output_mode == "classification":
loss_fct = CrossEntropyLoss()
loss = loss_fct(logits.view(-1, num_labels),
label_ids.view(-1))
elif output_mode == "regression":
loss_fct = MSELoss()
loss = loss_fct(logits.view(-1), label_ids.view(-1))
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
tr_loss += loss.item()
print("tr_loss = {}".format(tr_loss))
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if (step + 1) % args.gradient_accumulation_steps == 0:
if args.fp16:
# modify learning rate with special warm up BERT uses
# if args.fp16 is False, BertAdam is used that handles this automatically
lr_this_step = args.learning_rate * warmup_linear_schedule.get_lr(
global_step)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
if args.do_train and (args.local_rank == -1
or torch.distributed.get_rank() == 0):
# Save a trained model, configuration and tokenizer
model_to_save = model.module if hasattr(
model, 'module') else model # Only save the model it-self
# If we save using the predefined names, we can load using `from_pretrained`
output_model_file = os.path.join(args.output_dir, WEIGHTS_NAME)
output_config_file = os.path.join(args.output_dir, CONFIG_NAME)
torch.save(model_to_save.state_dict(), output_model_file)
model_to_save.config.to_json_file(output_config_file)
tokenizer.save_vocabulary(args.output_dir)
# Load a trained model and vocabulary that you have fine-tuned
model = BertForSequenceClassification.from_pretrained(
args.output_dir, num_labels=num_labels)
tokenizer = BertTokenizer.from_pretrained(
args.output_dir, do_lower_case=args.do_lower_case)
else:
model = BertForSequenceClassification.from_pretrained(
args.bert_model, num_labels=num_labels)
model.to(device)
if args.do_eval and (args.local_rank == -1
or torch.distributed.get_rank() == 0):
eval_examples = processor.get_dev_examples(args.data_dir)
eval_features = convert_examples_to_features(eval_examples, label_list,
args.max_seq_length,
tokenizer, output_mode)
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
all_input_ids = torch.tensor([f.input_ids for f in eval_features],
dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in eval_features],
dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in eval_features],
dtype=torch.long)
if output_mode == "classification":
all_label_ids = torch.tensor([f.label_id for f in eval_features],
dtype=torch.long)
elif output_mode == "regression":
all_label_ids = torch.tensor([f.label_id for f in eval_features],
dtype=torch.float)
eval_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
model.eval()
eval_loss = 0
nb_eval_steps = 0
preds = []
for input_ids, input_mask, segment_ids, label_ids in tqdm(
eval_dataloader, desc="Evaluating"):
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
logits = model(input_ids, segment_ids, input_mask, labels=None)
# create eval loss and other metric required by the task
if output_mode == "classification":
loss_fct = CrossEntropyLoss()
tmp_eval_loss = loss_fct(logits.view(-1, num_labels),
label_ids.view(-1))
elif output_mode == "regression":
loss_fct = MSELoss()
tmp_eval_loss = loss_fct(logits.view(-1), label_ids.view(-1))
eval_loss += tmp_eval_loss.mean().item()
nb_eval_steps += 1
if len(preds) == 0:
preds.append(logits.detach().cpu().numpy())
else:
preds[0] = np.append(preds[0],
logits.detach().cpu().numpy(),
axis=0)
eval_loss = eval_loss / nb_eval_steps
preds = preds[0]
if output_mode == "classification":
preds = np.argmax(preds, axis=1)
elif output_mode == "regression":
preds = np.squeeze(preds)
result = compute_metrics(task_name, preds, all_label_ids.numpy())
loss = tr_loss / nb_tr_steps if args.do_train else None
result['eval_loss'] = eval_loss
result['global_step'] = global_step
result['loss'] = loss
output_eval_file = os.path.join(args.output_dir, "eval_results.txt")
with open(output_eval_file, "w") as writer:
logger.info("***** Eval results *****")
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
# hack for MNLI-MM
if task_name == "mnli":
task_name = "mnli-mm"
processor = processors[task_name]()
if os.path.exists(args.output_dir +
'-MM') and os.listdir(args.output_dir +
'-MM') and args.do_train:
raise ValueError(
"Output directory ({}) already exists and is not empty.".
format(args.output_dir))
if not os.path.exists(args.output_dir + '-MM'):
os.makedirs(args.output_dir + '-MM')
eval_examples = processor.get_dev_examples(args.data_dir)
eval_features = convert_examples_to_features(
eval_examples, label_list, args.max_seq_length, tokenizer,
output_mode)
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
all_input_ids = torch.tensor([f.input_ids for f in eval_features],
dtype=torch.long)
all_input_mask = torch.tensor(
[f.input_mask for f in eval_features], dtype=torch.long)
all_segment_ids = torch.tensor(
[f.segment_ids for f in eval_features], dtype=torch.long)
all_label_ids = torch.tensor([f.label_id for f in eval_features],
dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
model.eval()
eval_loss = 0
nb_eval_steps = 0
preds = []
for input_ids, input_mask, segment_ids, label_ids in tqdm(
eval_dataloader, desc="Evaluating"):
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
logits = model(input_ids,
segment_ids,
input_mask,
labels=None)
loss_fct = CrossEntropyLoss()
tmp_eval_loss = loss_fct(logits.view(-1, num_labels),
label_ids.view(-1))
eval_loss += tmp_eval_loss.mean().item()
nb_eval_steps += 1
if len(preds) == 0:
preds.append(logits.detach().cpu().numpy())
else:
preds[0] = np.append(preds[0],
logits.detach().cpu().numpy(),
axis=0)
eval_loss = eval_loss / nb_eval_steps
preds = preds[0]
preds = np.argmax(preds, axis=1)
result = compute_metrics(task_name, preds, all_label_ids.numpy())
loss = tr_loss / nb_tr_steps if args.do_train else None
result['eval_loss'] = eval_loss
result['global_step'] = global_step
result['loss'] = loss
output_eval_file = os.path.join(args.output_dir + '-MM',
"eval_results.txt")
with open(output_eval_file, "w") as writer:
logger.info("***** Eval results *****")
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
def pretrain_on_domain(args):
assert args.pregenerated_data.is_dir(), \
"--pregenerated_data should point to the folder of files made by pregenerate_training_data.py!"
samples_per_epoch = []
for i in range(args.epochs):
epoch_file = args.pregenerated_data / f"{BERT_PRETRAINED_MODEL}_epoch_{i}.json"
metrics_file = args.pregenerated_data / f"{BERT_PRETRAINED_MODEL}_epoch_{i}_metrics.json"
if epoch_file.is_file() and metrics_file.is_file():
metrics = json.loads(metrics_file.read_text())
samples_per_epoch.append(metrics['num_training_examples'])
else:
if i == 0:
exit("No training data was found!")
print(f"Warning! There are fewer epochs of pregenerated data ({i}) than training epochs ({args.epochs}).")
print("This script will loop over the available data, but training diversity may be negatively impacted.")
num_data_epochs = i
break
else:
num_data_epochs = args.epochs
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available() and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logging.info("device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".format(
device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError("Invalid gradient_accumulation_steps parameter: {}, should be >= 1".format(
args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if args.output_dir.is_dir() and list(args.output_dir.iterdir()):
logging.warning(f"Output directory ({args.output_dir}) already exists and is not empty!")
args.output_dir.mkdir(parents=True, exist_ok=True)
tokenizer = BertTokenizer.from_pretrained(args.bert_model, do_lower_case=args.do_lower_case)
total_train_examples = 0
for i in range(args.epochs):
# The modulo takes into account the fact that we may loop over limited epochs of data
total_train_examples += samples_per_epoch[i % len(samples_per_epoch)]
num_train_optimization_steps = int(
total_train_examples / args.train_batch_size / args.gradient_accumulation_steps)
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size()
# Prepare model
model = BertForMLMPreTraining.from_pretrained(args.bert_model)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay': 0.01},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer, static_loss_scale=args.loss_scale)
else:
optimizer = AdamW(optimizer_grouped_parameters, lr=args.learning_rate, eps=args.adam_epsilon)
scheduler = get_linear_schedule_with_warmup(optimizer,
num_warmup_steps=args.warmup_steps,
num_training_steps=num_train_optimization_steps)
loss_dict = defaultdict(list)
global_step = 0
logging.info("***** Running training *****")
logging.info(f" Num examples = {total_train_examples}")
logging.info(" Batch size = %d", args.train_batch_size)
logging.info(" Num steps = %d", num_train_optimization_steps)
model.train()
for epoch in range(args.epochs):
epoch_dataset = PregeneratedDataset(epoch=epoch, training_path=args.pregenerated_data, tokenizer=tokenizer,
num_data_epochs=num_data_epochs, reduce_memory=args.reduce_memory)
if args.local_rank == -1:
train_sampler = RandomSampler(epoch_dataset)
else:
train_sampler = DistributedSampler(epoch_dataset)
train_dataloader = DataLoader(epoch_dataset, sampler=train_sampler, batch_size=args.train_batch_size, num_workers=NUM_CPU)
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
with tqdm(total=len(train_dataloader), desc=f"Epoch {epoch}") as pbar:
for step, batch in enumerate(train_dataloader):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, lm_label_ids = batch
outputs = model(input_ids=input_ids, attention_mask=input_mask, masked_lm_labels=lm_label_ids)
loss = outputs[0]
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
pbar.update(1)
mean_loss = tr_loss * args.gradient_accumulation_steps / nb_tr_steps
pbar.set_postfix_str(f"Loss: {mean_loss:.5f}")
if (step + 1) % args.gradient_accumulation_steps == 0:
optimizer.step()
scheduler.step() # Update learning rate schedule
optimizer.zero_grad()
global_step += 1
loss_dict["epoch"].append(epoch)
loss_dict["batch_id"].append(step)
loss_dict["mlm_loss"].append(loss.item())
# Save a trained model
if epoch < num_data_epochs and (n_gpu > 1 and torch.distributed.get_rank() == 0 or n_gpu <= 1):
logging.info("** ** * Saving fine-tuned model ** ** * ")
epoch_output_dir = args.output_dir / f"epoch_{epoch}"
epoch_output_dir.mkdir(parents=True, exist_ok=True)
model.save_pretrained(epoch_output_dir)
tokenizer.save_pretrained(epoch_output_dir)
# Save a trained model
if n_gpu > 1 and torch.distributed.get_rank() == 0 or n_gpu <=1:
logging.info("** ** * Saving fine-tuned model ** ** * ")
model.save_pretrained(args.output_dir)
tokenizer.save_pretrained(args.output_dir)
df = pd.DataFrame.from_dict(loss_dict)
df.to_csv(args.output_dir/"losses.csv")
shuffle=False,
sampler=train_sampler)
val_loader = torch.utils.data.DataLoader(dataset,
batch_size=1024,
shuffle=False,
sampler=validation_sampler)
stackedgru = StackedGRU()
stackedgru = stackedgru.to(device)
#stackedgru = torch.nn.DataParallel(stackedgru,
# device_ids=['cuda:2', 'cuda:3', 'cuda:4', 'cuda:5'])
if enable_amp:
#amp.register_float_function(torch, 'sigmoid')
from apex.optimizers import FusedAdam
optimizer = FusedAdam(stackedgru.parameters())
stackedgru, optimizer = amp.initialize(stackedgru,
optimizer,
opt_level='O2')
else:
optimizer = torch.optim.Adam(stackedgru.parameters())
model = Model(stackedgru, optimizer, model_path='./phaselink_model')
print("Begin training process.")
model.train(train_loader, val_loader, n_epochs, enable_amp=enable_amp)
# And select and assign best model:
find_best_model(model_path="phaselink_model")
print("Finished.")
def main():
parser = ArgumentParser()
parser.add_argument('--pregenerated_data', type=Path, required=True)
parser.add_argument('--output_dir', type=Path, required=True)
parser.add_argument(
"--bert_model",
type=str,
default="bert-base-uncased",
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-base-multilingual, bert-base-chinese."
)
parser.add_argument("--do_lower_case", action="store_true")
parser.add_argument(
"--reduce_memory",
action="store_true",
help=
"Store training data as on-disc memmaps to massively reduce memory usage"
)
parser.add_argument("--epochs",
type=int,
default=3,
help="Number of epochs to train for")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument(
'--gradient_accumulation_steps',
type=int,
default=1,
help=
"Number of updates steps to accumulate before performing a backward/update pass."
)
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument(
'--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--loss_scale',
type=float,
default=0,
help=
"Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument("--warmup_steps",
default=0,
type=int,
help="Linear warmup over warmup_steps.")
parser.add_argument("--adam_epsilon",
default=1e-8,
type=float,
help="Epsilon for Adam optimizer.")
parser.add_argument("--learning_rate",
default=3e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
args = parser.parse_args()
assert args.pregenerated_data.is_dir(), \
"--pregenerated_data should point to the folder of files made by pregenerate_training_data.py!"
samples_per_epoch = []
for i in range(args.epochs):
epoch_file = args.pregenerated_data / f"epoch_{i}.json"
metrics_file = args.pregenerated_data / f"epoch_{i}_metrics.json"
if epoch_file.is_file() and metrics_file.is_file():
metrics = json.loads(metrics_file.read_text())
samples_per_epoch.append(metrics['num_training_examples'])
else:
if i == 0:
exit("No training data was found!")
print(
f"Warning! There are fewer epochs of pregenerated data ({i}) than training epochs ({args.epochs})."
)
print(
"This script will loop over the available data, but training diversity may be negatively impacted."
)
num_data_epochs = i
break
else:
num_data_epochs = args.epochs
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logging.info(
"device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".
format(device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if args.output_dir.is_dir() and list(args.output_dir.iterdir()):
logging.warning(
f"Output directory ({args.output_dir}) already exists and is not empty!"
)
args.output_dir.mkdir(parents=True, exist_ok=True)
tokenizer = BertTokenizer.from_pretrained(args.bert_model,
do_lower_case=args.do_lower_case)
total_train_examples = 0
for i in range(args.epochs):
# The modulo takes into account the fact that we may loop over limited epochs of data
total_train_examples += samples_per_epoch[i % len(samples_per_epoch)]
num_train_optimization_steps = int(total_train_examples /
args.train_batch_size /
args.gradient_accumulation_steps)
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size(
)
# Prepare model
model = BertForMaskedLM.from_pretrained(args.bert_model)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer,
static_loss_scale=args.loss_scale)
else:
optimizer = AdamW(optimizer_grouped_parameters,
lr=args.learning_rate,
eps=args.adam_epsilon)
scheduler = WarmupLinearSchedule(optimizer,
warmup_steps=args.warmup_steps,
t_total=num_train_optimization_steps)
global_step = 0
logging.info("***** Running training *****")
logging.info(f" Num examples = {total_train_examples}")
logging.info(" Batch size = %d", args.train_batch_size)
logging.info(" Num steps = %d", num_train_optimization_steps)
model.train()
for epoch in range(args.epochs):
epoch_dataset = PregeneratedDataset(
epoch=epoch,
training_path=args.pregenerated_data,
tokenizer=tokenizer,
num_data_epochs=num_data_epochs,
reduce_memory=args.reduce_memory)
if args.local_rank == -1:
train_sampler = RandomSampler(epoch_dataset)
else:
train_sampler = DistributedSampler(epoch_dataset)
train_dataloader = DataLoader(epoch_dataset,
sampler=train_sampler,
batch_size=args.train_batch_size)
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
with tqdm(total=len(train_dataloader), desc=f"Epoch {epoch}") as pbar:
for step, batch in enumerate(train_dataloader):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, lm_label_ids = batch
outputs = model(input_ids, segment_ids, input_mask,
lm_label_ids)
loss = outputs[0]
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
pbar.update(1)
mean_loss = tr_loss * args.gradient_accumulation_steps / nb_tr_steps
pbar.set_postfix_str(f"Loss: {mean_loss:.5f}")
if (step + 1) % args.gradient_accumulation_steps == 0:
optimizer.step()
scheduler.step() # Update learning rate schedule
optimizer.zero_grad()
global_step += 1
# Save a trained model
if n_gpu > 1 and torch.distributed.get_rank() == 0 or n_gpu <= 1:
logging.info("** ** * Saving fine-tuned model ** ** * ")
model.save_pretrained(args.output_dir)
tokenizer.save_pretrained(args.output_dir)
def main():
parser = ArgumentParser()
parser.add_argument('--pregenerated_data', type=Path, required=True)
parser.add_argument('--output_dir', type=Path, required=True)
parser.add_argument("--bert_model", type=str, required=True, help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-base-multilingual, bert-base-chinese.")
parser.add_argument("--do_lower_case", action="store_true")
parser.add_argument("--reduce_memory", action="store_true",
help="Store training data as on-disc memmaps to massively reduce memory usage")
parser.add_argument("--epochs", type=int, default=3, help="Number of epochs to train for")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument('--gradient_accumulation_steps',
type=int,
default=1,
help="Number of updates steps to accumulate before performing a backward/update pass.")
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument('--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument('--loss_scale',
type=float, default=0,
help="Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument("--warmup_steps",
default=0,
type=int,
help="Linear warmup over warmup_steps.")
parser.add_argument("--adam_epsilon",
default=1e-8,
type=float,
help="Epsilon for Adam optimizer.")
parser.add_argument("--learning_rate",
default=3e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
args = parser.parse_args()
assert args.pregenerated_data.is_dir(), \
"--pregenerated_data should point to the folder of files made by pregenerate_data.py!"
samples_per_epoch = []
for i in range(args.epochs):
epoch_file = args.pregenerated_data / f"epoch_{i}_train.json"
metrics_file = args.pregenerated_data / f"epoch_{i}_train_metrics.json"
if epoch_file.is_file() and metrics_file.is_file():
metrics = json.loads(metrics_file.read_text())
samples_per_epoch.append(metrics['num_training_examples'])
else:
if i == 0:
exit("No training data was found!")
print(f"Warning! There are fewer epochs of pregenerated data ({i}) than training epochs ({args.epochs}).")
print("This script will loop over the available data, but training diversity may be negatively impacted.")
num_data_epochs = i
break
else:
num_data_epochs = args.epochs
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available() and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logging.info("device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".format(
device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError("Invalid gradient_accumulation_steps parameter: {}, should be >= 1".format(
args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
# initialize random seed so that training results could be reproduced (Jiajun Bao)
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if args.output_dir.is_dir() and list(args.output_dir.iterdir()):
logging.warning(f"Output directory ({args.output_dir}) already exists and is not empty!")
args.output_dir.mkdir(parents=True, exist_ok=True)
total_train_examples = 0
for i in range(args.epochs):
# The modulo takes into account the fact that we may loop over limited epochs of data
total_train_examples += samples_per_epoch[i % len(samples_per_epoch)]
num_train_optimization_steps = int(
total_train_examples / args.train_batch_size / args.gradient_accumulation_steps)
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size()
# Prepare model
model = BertForPreTraining.from_pretrained(args.bert_model)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay': 0.01},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer, static_loss_scale=args.loss_scale)
else:
optimizer = AdamW(optimizer_grouped_parameters, lr=args.learning_rate, eps=args.adam_epsilon)
scheduler = WarmupLinearSchedule(optimizer, warmup_steps=args.warmup_steps, t_total=num_train_optimization_steps)
args.n_gpu = n_gpu
args.device = device
args.num_data_epochs = num_data_epochs
args.num_train_optimization_steps = num_train_optimization_steps
args.total_train_examples = total_train_examples
train(args, model, optimizer, scheduler)
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument("--data_dir",
default=None,
type=str,
required=True,
help="The input data dir. Should contain the .csv files (or other data files) for the task.")
parser.add_argument("--bert_model", default=None, type=str, required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-base-multilingual, bert-base-chinese.")
parser.add_argument("--init_ckpt", default=None, type=str, required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-base-multilingual, bert-base-chinese.")
parser.add_argument("--output_dir",
default=None,
type=str,
required=True,
help="The output directory where the model checkpoints will be written.")
## Other parameters
parser.add_argument("--max_seq_length",
default=128,
type=int,
help="The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--do_train",
default=False,
action='store_true',
help="Whether to run training.")
parser.add_argument("--do_eval",
default=False,
action='store_true',
help="Whether to run eval on the dev set.")
parser.add_argument("--do_lower_case",
default=False,
action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument("--eval_batch_size",
default=8,
type=int,
help="Total batch size for eval.")
parser.add_argument("--learning_rate",
default=5e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs",
default=3.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument("--warmup_proportion",
default=0.1,
type=float,
help="Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
default=False,
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument('--gradient_accumulation_steps',
type=int,
default=1,
help="Number of updates steps to accumulate before performing a backward/update pass.")
parser.add_argument('--fp16',
default=False,
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument('--loss_scale',
type=float, default=0,
help="Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
args = parser.parse_args()
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available() and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logger.info("device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".format(
device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError("Invalid gradient_accumulation_steps parameter: {}, should be >= 1".format(
args.gradient_accumulation_steps))
args.train_batch_size = int(args.train_batch_size / args.gradient_accumulation_steps)
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train and not args.do_eval:
raise ValueError("At least one of `do_train` or `do_eval` must be True.")
if os.path.exists(args.output_dir) and os.listdir(args.output_dir):
raise ValueError("Output directory ({}) already exists and is not empty.".format(args.output_dir))
os.makedirs(args.output_dir, exist_ok=True)
tokenizer = BertTokenizer.from_pretrained(args.bert_model, do_lower_case=args.do_lower_case)
train_examples = None
num_train_steps = None
if args.do_train:
train_dir = os.path.join(args.data_dir, 'train')
train_examples = read_race_examples([train_dir+'/high', train_dir+'/middle'])
num_train_steps = int(
len(train_examples) / args.train_batch_size / args.gradient_accumulation_steps * args.num_train_epochs)
# Prepare model
model = BertForMultipleChoice.from_pretrained(args.init_ckpt,
cache_dir=PYTORCH_PRETRAINED_BERT_CACHE / 'distributed_{}'.format(args.local_rank),
num_choices=4)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError("Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
# hack to remove pooler, which is not used
# thus it produce None grad that break apex
param_optimizer = [n for n in param_optimizer if 'pooler' not in n[0]]
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)], 'weight_decay': 0.01},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
t_total = num_train_steps
if args.local_rank != -1:
t_total = t_total // torch.distributed.get_world_size()
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError("Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer, static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=t_total)
global_step = 0
if args.do_train:
train_features = convert_examples_to_features(
train_examples, tokenizer, args.max_seq_length, True)
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_steps)
all_input_ids = torch.tensor(select_field(train_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(select_field(train_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(select_field(train_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in train_features], dtype=torch.long)
train_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
if args.local_rank == -1:
train_sampler = RandomSampler(train_data)
else:
train_sampler = DistributedSampler(train_data)
train_dataloader = DataLoader(train_data, sampler=train_sampler, batch_size=args.train_batch_size)
model.train()
for ep in range(int(args.num_train_epochs)):
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
logger.info("Trianing Epoch: {}/{}".format(ep+1, int(args.num_train_epochs)))
for step, batch in enumerate(train_dataloader):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
loss = model(input_ids, segment_ids, input_mask, label_ids)
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.fp16 and args.loss_scale != 1.0:
# rescale loss for fp16 training
# see https://docs.nvidia.com/deeplearning/sdk/mixed-precision-training/index.html
loss = loss * args.loss_scale
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
if (step + 1) % args.gradient_accumulation_steps == 0:
# modify learning rate with special warm up BERT uses
lr_this_step = args.learning_rate * warmup_linear(global_step/t_total, args.warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
if global_step%100 == 0:
logger.info("Training loss: {}, global step: {}".format(tr_loss/nb_tr_steps, global_step))
## evaluate on dev set
if global_step % 1000 == 0:
dev_dir = os.path.join(args.data_dir, 'dev')
dev_set = [dev_dir+'/high', dev_dir+'/middle']
eval_examples = read_race_examples(dev_set)
eval_features = convert_examples_to_features(
eval_examples, tokenizer, args.max_seq_length, True)
logger.info("***** Running evaluation: Dev *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
all_input_ids = torch.tensor(select_field(eval_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(select_field(eval_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(select_field(eval_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in eval_features], dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data, sampler=eval_sampler, batch_size=args.eval_batch_size)
model.eval()
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
for step, batch in enumerate(eval_dataloader):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
with torch.no_grad():
tmp_eval_loss = model(input_ids, segment_ids, input_mask, label_ids)
logits = model(input_ids, segment_ids, input_mask)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
tmp_eval_accuracy = accuracy(logits, label_ids)
eval_loss += tmp_eval_loss.mean().item()
eval_accuracy += tmp_eval_accuracy
nb_eval_examples += input_ids.size(0)
nb_eval_steps += 1
eval_loss = eval_loss / nb_eval_steps
eval_accuracy = eval_accuracy / nb_eval_examples
result = {'dev_eval_loss': eval_loss,
'dev_eval_accuracy': eval_accuracy,
'global_step': global_step,
'loss': tr_loss/nb_tr_steps}
output_eval_file = os.path.join(args.output_dir, "eval_results.txt")
with open(output_eval_file, "a+") as writer:
logger.info("***** Dev results *****")
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
# Save a trained model
model_to_save = model.module if hasattr(model, 'module') else model # Only save the model it-self
output_model_file = os.path.join(args.output_dir, "pytorch_model.bin")
torch.save(model_to_save.state_dict(), output_model_file)
## Load a trained model that you have fine-tuned
## use this part if you want to load the trained model
# model_state_dict = torch.load(output_model_file)
# model = BertForMultipleChoice.from_pretrained(args.bert_model,
# state_dict=model_state_dict,
# num_choices=4)
# model.to(device)
if args.do_eval and (args.local_rank == -1 or torch.distributed.get_rank() == 0):
test_dir = os.path.join(args.data_dir, 'test')
test_high = [test_dir + '/high']
test_middle = [test_dir + '/middle']
## test high
eval_examples = read_race_examples(test_high)
eval_features = convert_examples_to_features(
eval_examples, tokenizer, args.max_seq_length, True)
logger.info("***** Running evaluation: test high *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
all_input_ids = torch.tensor(select_field(eval_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(select_field(eval_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(select_field(eval_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in eval_features], dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data, sampler=eval_sampler, batch_size=args.eval_batch_size)
model.eval()
high_eval_loss, high_eval_accuracy = 0, 0
high_nb_eval_steps, high_nb_eval_examples = 0, 0
for step, batch in enumerate(eval_dataloader):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
with torch.no_grad():
tmp_eval_loss = model(input_ids, segment_ids, input_mask, label_ids)
logits = model(input_ids, segment_ids, input_mask)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
tmp_eval_accuracy = accuracy(logits, label_ids)
high_eval_loss += tmp_eval_loss.mean().item()
high_eval_accuracy += tmp_eval_accuracy
high_nb_eval_examples += input_ids.size(0)
high_nb_eval_steps += 1
eval_loss = high_eval_loss / high_nb_eval_steps
eval_accuracy = high_eval_accuracy / high_nb_eval_examples
result = {'high_eval_loss': eval_loss,
'high_eval_accuracy': eval_accuracy}
output_eval_file = os.path.join(args.output_dir, "eval_results.txt")
with open(output_eval_file, "a+") as writer:
logger.info("***** Eval results *****")
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
## test middle
eval_examples = read_race_examples(test_middle)
eval_features = convert_examples_to_features(
eval_examples, tokenizer, args.max_seq_length, True)
logger.info("***** Running evaluation: test middle *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
all_input_ids = torch.tensor(select_field(eval_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(select_field(eval_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(select_field(eval_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in eval_features], dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data, sampler=eval_sampler, batch_size=args.eval_batch_size)
model.eval()
middle_eval_loss, middle_eval_accuracy = 0, 0
middle_nb_eval_steps, middle_nb_eval_examples = 0, 0
for step, batch in enumerate(eval_dataloader):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
with torch.no_grad():
tmp_eval_loss = model(input_ids, segment_ids, input_mask, label_ids)
logits = model(input_ids, segment_ids, input_mask)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
tmp_eval_accuracy = accuracy(logits, label_ids)
middle_eval_loss += tmp_eval_loss.mean().item()
middle_eval_accuracy += tmp_eval_accuracy
middle_nb_eval_examples += input_ids.size(0)
middle_nb_eval_steps += 1
eval_loss = middle_eval_loss / middle_nb_eval_steps
eval_accuracy = middle_eval_accuracy / middle_nb_eval_examples
result = {'middle_eval_loss': eval_loss,
'middle_eval_accuracy': eval_accuracy}
with open(output_eval_file, "a+") as writer:
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
## all test
eval_loss = (middle_eval_loss + high_eval_loss) / (middle_nb_eval_steps + high_nb_eval_steps)
eval_accuracy = (middle_eval_accuracy + high_eval_accuracy) / (middle_nb_eval_examples + high_nb_eval_examples)
result = {'overall_eval_loss': eval_loss,
'overall_eval_accuracy': eval_accuracy}
with open(output_eval_file, "a+") as writer:
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
def set_model(self,
inference=False,
with_head=False,
from_path=None,
output_attention=False):
self.verbose('Initializing Mockingjay model.')
# uild the Mockingjay model with speech prediction head
self.model_config = MockingjayConfig(self.config)
self.dr = self.model_config.downsample_rate
self.hidden_size = self.model_config.hidden_size
self.output_attention = output_attention
if not inference or with_head:
self.model = MockingjayForMaskedAcousticModel(
self.model_config, self.input_dim, self.output_dim,
self.output_attention).to(self.device)
self.verbose('Number of parameters: ' + str(
sum(p.numel()
for p in self.model.parameters() if p.requires_grad)))
self.mockingjay = self.model.Mockingjay
if inference and not with_head:
self.mockingjay = MockingjayModel(
self.model_config, self.input_dim,
self.output_attention).to(self.device)
self.verbose('Number of parameters: ' + str(
sum(p.numel()
for p in self.mockingjay.parameters() if p.requires_grad)))
self.mockingjay.eval()
elif inference and with_head:
self.model.eval()
elif not inference:
self.model.train()
# Setup optimizer
param_optimizer = list(self.model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params': [
p for n, p in param_optimizer
if not any(nd in n for nd in no_decay)
],
'weight_decay':
0.01
}, {
'params': [
p for n, p in param_optimizer
if any(nd in n for nd in no_decay)
],
'weight_decay':
0.0
}]
num_train_optimization_steps = self.total_steps // self.gradient_accumulation_steps
if self.apex:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=self.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if self.config['optimizer']['loss_scale'] == 0:
self.optimizer = FP16_Optimizer(optimizer,
dynamic_loss_scale=True)
else:
self.optimizer = FP16_Optimizer(
optimizer,
static_loss_scale=self.config['optimizer']
['loss_scale'])
self.warmup_linear = WarmupLinearSchedule(
warmup=self.warmup_proportion,
t_total=num_train_optimization_steps)
else:
self.optimizer = BertAdam(optimizer_grouped_parameters,
lr=self.learning_rate,
warmup=self.warmup_proportion,
t_total=num_train_optimization_steps)
else:
raise NotImplementedError('Invalid Arguments!')
if self.load: # This will be set to True by default when Tester is running set_model()
self.load_model(inference=inference,
with_head=with_head,
from_path=from_path)
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument("--data_dir",
default=None,
type=str,
required=True,
help="The input data dir.")
parser.add_argument("--train_file", default=None, type=str)
parser.add_argument("--dev_file", default=None, type=str)
parser.add_argument("--test_file", default=None, type=str)
parser.add_argument(
"--bert_model",
default=None,
type=str,
required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-large-cased, bert-base-multilingual-uncased, "
"bert-base-multilingual-cased, bert-base-chinese.")
parser.add_argument("--task_name",
default=None,
type=str,
required=True,
help="The name of the task to train.")
parser.add_argument(
"--output_dir",
default=None,
type=str,
required=True,
help=
"The output directory where the model predictions and checkpoints will be written."
)
## Other parameters
parser.add_argument(
"--max_seq_length",
default=128,
type=int,
help=
"The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--do_train",
action='store_true',
help="Whether to run training.")
parser.add_argument("--do_eval",
action='store_true',
help="Whether to run eval on the dev set.")
parser.add_argument(
"--do_lower_case",
action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument("--eval_batch_size",
default=8,
type=int,
help="Total batch size for eval.")
parser.add_argument("--learning_rate",
default=5e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs",
default=3.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument(
"--warmup_proportion",
default=0.1,
type=float,
help=
"Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument(
'--gradient_accumulation_steps',
type=int,
default=1,
help=
"Number of updates steps to accumulate before performing a backward/update pass."
)
parser.add_argument(
'--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--loss_scale',
type=float,
default=0,
help=
"Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
args = parser.parse_args()
processors = {
"ukp_aspects": UKPAspectsProcessor,
"misra": MisraProcessor,
}
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logger.info(
"device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".
format(device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(args.gradient_accumulation_steps))
args.train_batch_size = int(args.train_batch_size /
args.gradient_accumulation_steps)
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train and not args.do_eval:
raise ValueError(
"At least one of `do_train` or `do_eval` must be True.")
if os.path.exists(args.output_dir) and os.listdir(
args.output_dir) and args.do_train:
raise ValueError(
"Output directory ({}) already exists and is not empty.".format(
args.output_dir))
os.makedirs(args.output_dir, exist_ok=True)
with open(os.path.join(args.output_dir, 'config.txt'), 'w') as fOut:
fOut.write(str(args))
task_name = args.task_name.lower()
if task_name not in processors:
raise ValueError("Task not found: %s" % (task_name))
processor = processors[task_name]()
num_labels = 1
tokenizer = BertTokenizer.from_pretrained(args.bert_model,
do_lower_case=args.do_lower_case)
train_examples = None
num_train_steps = None
if args.do_train:
train_examples = processor.get_examples(args.data_dir, args.train_file,
args.dev_file, args.test_file,
'train')
num_train_steps = int(
len(train_examples) / args.train_batch_size /
args.gradient_accumulation_steps * args.num_train_epochs)
# Prepare model
model = SigmoidBERT.from_pretrained(
args.bert_model,
cache_dir=PYTORCH_PRETRAINED_BERT_CACHE /
'distributed_{}'.format(args.local_rank),
num_labels=num_labels)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
t_total = num_train_steps
if args.local_rank != -1:
t_total = t_total // torch.distributed.get_world_size()
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer,
static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=t_total)
global_step = 0
if args.do_train:
with open(os.path.join(args.output_dir, "train_sentences.csv"),
"w") as writer:
for idx, example in enumerate(train_examples):
writer.write("%s\t%s\t%s\n" %
(example.label, example.text_a, example.text_b))
train_features = convert_examples_to_features(train_examples,
args.max_seq_length,
tokenizer)
logger.info("\n\n***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_steps)
all_input_ids = torch.tensor([f.input_ids for f in train_features],
dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in train_features],
dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in train_features],
dtype=torch.long)
all_label_ids = torch.tensor([f.label_id for f in train_features],
dtype=torch.float)
train_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
if args.local_rank == -1:
train_sampler = RandomSampler(train_data)
else:
train_sampler = DistributedSampler(train_data)
train_dataloader = DataLoader(train_data,
sampler=train_sampler,
batch_size=args.train_batch_size)
model.train()
for epoch in trange(int(args.num_train_epochs), desc="Epoch"):
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
for step, batch in enumerate(
tqdm(train_dataloader, desc="Iteration")):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
loss = model(input_ids, segment_ids, input_mask, label_ids)
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if (step + 1) % args.gradient_accumulation_steps == 0:
# modify learning rate with special warm up BERT uses
lr_this_step = args.learning_rate * warmup_linear(
global_step / t_total, args.warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
#Dev set
if args.dev_file is not None:
eval_set = 'dev'
eval_results_filename = "%s_results_epoch_%d.txt" % (eval_set,
epoch + 1)
eval_prediction_filename = "%s_predictions_epoch_%d.tsv" % (
eval_set, epoch + 1)
do_evaluation(processor, args, tokenizer, model, device,
global_step, eval_set, eval_results_filename,
eval_prediction_filename)
# Test set
if args.test_file is not None:
eval_set = 'test'
eval_results_filename = "%s_results_epoch_%d.txt" % (eval_set,
epoch + 1)
eval_prediction_filename = "%s_predictions_epoch_%d.tsv" % (
eval_set, epoch + 1)
do_evaluation(processor, args, tokenizer, model, device,
global_step, eval_set, eval_results_filename,
eval_prediction_filename)
# Save a trained model
model_to_save = model.module if hasattr(
model, 'module') else model # Only save the model it-self
# If we save using the predefined names, we can load using `from_pretrained`
output_model_file = os.path.join(args.output_dir, WEIGHTS_NAME)
output_config_file = os.path.join(args.output_dir, CONFIG_NAME)
torch.save(model_to_save.state_dict(), output_model_file)
model_to_save.config.to_json_file(output_config_file)
tokenizer.save_vocabulary(args.output_dir)
model_to_save = model.module if hasattr(
model, 'module') else model # Only save the model it-self
output_model_file = os.path.join(args.output_dir, "pytorch_model.bin")
if args.do_train:
torch.save(model_to_save.state_dict(), output_model_file)
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument(
"--data_dir",
default=None,
type=str,
required=True,
help=
"The input data dir. Should contain the .tsv files (or other data files) for the task."
)
parser.add_argument("--ernie_model",
default=None,
type=str,
required=True,
help="Ernie pre-trained model")
parser.add_argument(
"--output_dir",
default=None,
type=str,
required=True,
help=
"The output directory where the model predictions and checkpoints will be written."
)
## Other parameters
parser.add_argument(
"--max_seq_length",
default=128,
type=int,
help=
"The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--do_train",
default=False,
action='store_true',
help="Whether to run training.")
parser.add_argument("--do_eval",
default=False,
action='store_true',
help="Whether to run eval on the dev set.")
parser.add_argument(
"--do_lower_case",
default=False,
action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument("--learning_rate",
default=5e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs",
default=3.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument(
"--warmup_proportion",
default=0.0,
type=float,
help=
"Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
default=False,
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument(
'--gradient_accumulation_steps',
type=int,
default=1,
help=
"Number of updates steps to accumulate before performing a backward/update pass."
)
parser.add_argument(
'--fp16',
default=False,
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--loss_scale',
type=float,
default=0,
help=
"Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument('--threshold', type=float, default=.3)
parser.add_argument("--vec_file",
default=None,
type=str,
required=True,
help="File with embeddings")
parser.add_argument("--qid_file",
default=None,
type=str,
required=True,
help="File with qid mapping")
parser.add_argument("--use_lim_ents",
default=None,
type=str,
required=True,
help="Whether to use limited entities")
args = parser.parse_args()
processors = TacredProcessor
num_labels_task = 80
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logger.info(
"device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".
format(device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(args.gradient_accumulation_steps))
args.train_batch_size = int(args.train_batch_size /
args.gradient_accumulation_steps)
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train and not args.do_eval:
raise ValueError(
"At least one of `do_train` or `do_eval` must be True.")
if os.path.exists(args.output_dir) and os.listdir(
args.output_dir) and args.do_train:
raise ValueError(
"Output directory ({}) already exists and is not empty.".format(
args.output_dir))
os.makedirs(args.output_dir, exist_ok=True)
processor = processors()
label_list = None
tokenizer = BertTokenizer.from_pretrained(args.ernie_model,
do_lower_case=args.do_lower_case)
train_examples = None
num_train_steps = None
train_examples, label_list = processor.get_train_examples(args.data_dir)
num_labels = len(label_list)
num_train_steps = int(
len(train_examples) / args.train_batch_size /
args.gradient_accumulation_steps * args.num_train_epochs)
# Prepare model
model, _ = BertForSequenceClassification.from_pretrained(
args.ernie_model,
cache_dir=PYTORCH_PRETRAINED_BERT_CACHE /
'distributed_{}'.format(args.local_rank),
num_labels=num_labels)
# if args.fp16:
# model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_grad = [
'bert.encoder.layer.11.output.dense_ent',
'bert.encoder.layer.11.output.LayerNorm_ent'
]
param_optimizer = [(n, p) for n, p in param_optimizer
if not any(nd in n for nd in no_grad)]
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
t_total = num_train_steps
if args.local_rank != -1:
t_total = t_total // torch.distributed.get_world_size()
if args.fp16:
try:
from apex import amp
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=True)
if args.loss_scale == 0:
model, optimizer = amp.initialize(model, optimizer, opt_level="O2")
# optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
model, optimizer = amp.initialize(model,
optimizer,
opt_level="O2",
loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=t_total)
global_step = 0
if args.do_train:
train_features = convert_examples_to_features(
train_examples, label_list, args.max_seq_length, tokenizer,
args.threshold, args.qid_file)
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_steps)
# check for limited ents
lim_ents = []
lim_check = (args.use_lim_ents == "y")
if lim_check:
lim_ents = lim_ent_map(0, "kg_embeddings/dbp_eid_2_wd_eid.txt")
logger.info(
"Limited entities flag is on. Count of unique entities considered: "
+ str(len(lim_ents)))
vecs = []
vecs.append([0] * 100) # CLS
lineindex = 1
uid_map = {}
logger.info("Reading embeddings file.")
with open(args.vec_file, 'r') as fin:
for line in fin:
vec = line.strip().split('\t')
# first element is unique id
uniqid = int(vec[0])
# map line index to unique id
uid_map[uniqid] = lineindex
# increment line index
lineindex = lineindex + 1
if (lim_check and (uniqid in lim_ents)) or not lim_check:
vec = [float(x) for x in vec[1:101]]
else:
vec = vecs[0]
vecs.append(vec)
embed = torch.FloatTensor(vecs)
embed = torch.nn.Embedding.from_pretrained(embed)
#embed = torch.nn.Embedding(5041175, 100)
logger.info("Shape of entity embedding: " + str(embed.weight.size()))
del vecs
# zeros = [0 for _ in range(args.max_seq_length)]
# zeros_ent = [0 for _ in range(100)]
# zeros_ent = [zeros_ent for _ in range(args.max_seq_length)]
all_input_ids = torch.tensor([f.input_ids for f in train_features],
dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in train_features],
dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in train_features],
dtype=torch.long)
all_label_ids = torch.tensor([f.label_id for f in train_features],
dtype=torch.long)
all_ent = torch.tensor([f.input_ent for f in train_features],
dtype=torch.long)
all_ent_masks = torch.tensor([f.ent_mask for f in train_features],
dtype=torch.long)
train_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_ent, all_ent_masks,
all_label_ids)
if args.local_rank == -1:
train_sampler = RandomSampler(train_data)
else:
train_sampler = DistributedSampler(train_data)
train_dataloader = DataLoader(train_data,
sampler=train_sampler,
batch_size=args.train_batch_size)
output_loss_file = os.path.join(args.output_dir, "loss")
loss_fout = open(output_loss_file, 'w')
model.train()
for _ in trange(int(args.num_train_epochs), desc="Epoch"):
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
for step, batch in enumerate(
tqdm(train_dataloader, desc="Iteration")):
batch = tuple(
t.to(device) if i != 3 else t for i, t in enumerate(batch))
input_ids, input_mask, segment_ids, input_ent, ent_mask, label_ids = batch
input_ent = embed(input_ent + 1).to(device) # -1 -> 0
loss = model(input_ids, segment_ids, input_mask,
input_ent.half(), ent_mask, label_ids)
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
try:
from apex import amp
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
with amp.scale_loss(loss, optimizer) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
loss_fout.write("{}\n".format(loss.item()))
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if (step + 1) % args.gradient_accumulation_steps == 0:
# modify learning rate with special warm up BERT uses
lr_this_step = args.learning_rate * warmup_linear(
global_step / t_total, args.warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
model_to_save = model.module if hasattr(model, 'module') else model
output_model_file = os.path.join(
args.output_dir, "pytorch_model.bin_{}".format(global_step))
torch.save(model_to_save.state_dict(), output_model_file)
# Save a trained model
model_to_save = model.module if hasattr(
model, 'module') else model # Only save the model it-self
output_model_file = os.path.join(args.output_dir, "pytorch_model.bin")
torch.save(model_to_save.state_dict(), output_model_file)
def set_model(self):
print('[Runner] - Initializing Transformer model...')
# uild the Transformer model with speech prediction head
model_config = TransformerConfig(self.config)
self.dr = model_config.downsample_rate
self.hidden_size = model_config.hidden_size
self.model = TransformerForMaskedAcousticModel(
model_config, self.input_dim, self.output_dim).to(self.device)
self.model.train()
if self.args.multi_gpu:
self.model = torch.nn.DataParallel(self.model)
print('[Runner] - Multi-GPU training Enabled: ' +
str(torch.cuda.device_count()))
print('[Runner] - Number of parameters: ' + str(
sum(p.numel()
for p in self.model.parameters() if p.requires_grad)))
# Setup optimizer
param_optimizer = list(self.model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params': [
p for n, p in param_optimizer
if not any(nd in n for nd in no_decay)
],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
if self.apex:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=self.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if self.config['optimizer']['loss_scale'] == 0:
self.optimizer = FP16_Optimizer(optimizer,
dynamic_loss_scale=True)
else:
self.optimizer = FP16_Optimizer(
optimizer,
static_loss_scale=self.config['optimizer']['loss_scale'])
self.warmup_linear = WarmupLinearSchedule(
warmup=self.warmup_proportion, t_total=self.total_steps)
else:
self.optimizer = BertAdam(optimizer_grouped_parameters,
lr=self.learning_rate,
warmup=self.warmup_proportion,
t_total=self.total_steps)
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument(
"--data_dir",
default='/home/adzuser/user_achyuta/BERT_NER_Test/BERT-NER/NERdata/',
type=str,
required=True,
help=
"The input data dir. Should contain the .tsv files (or other data files) for the task."
)
parser.add_argument(
"--bert_model",
default=None,
type=str,
required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-large-cased, bert-base-multilingual-uncased, "
"bert-base-multilingual-cased, bert-base-chinese.")
parser.add_argument("--task_name",
default='NER',
type=str,
required=True,
help="The name of the task to train.")
parser.add_argument(
"--output_dir",
default='ner_output',
type=str,
required=True,
help=
"The output directory where the model predictions and checkpoints will be written."
)
## Other parameters
parser.add_argument(
"--cache_dir",
default="",
type=str,
help=
"Where do you want to store the pre-trained models downloaded from s3")
parser.add_argument(
"--max_seq_length",
default=128,
type=int,
help=
"The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--do_train",
action='store_true',
help="Whether to run training.")
parser.add_argument("--do_eval",
action='store_true',
help="Whether to run eval on the dev set.")
parser.add_argument("--do_test",
action='store_true',
help="Whether to run test on the test set.")
parser.add_argument("--do_pred",
action='store_true',
help="Whether to run pred on the pred set.")
parser.add_argument(
"--do_lower_case",
action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument("--eval_batch_size",
default=8,
type=int,
help="Total batch size for eval.")
parser.add_argument("--learning_rate",
default=5e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument(
"--num_train_epochs",
default=4.0, #3.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument(
"--warmup_proportion",
default=0.1,
type=float,
help=
"Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument('--clip',
type=float,
default=0.5,
help="gradient clipping")
parser.add_argument(
'--gradient_accumulation_steps',
type=int,
default=1,
help=
"Number of updates steps to accumulate before performing a backward/update pass."
)
parser.add_argument(
'--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--loss_scale',
type=float,
default=0,
help=
"Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument('--server_ip',
type=str,
default='',
help="Can be used for distant debugging.")
parser.add_argument('--server_port',
type=str,
default='',
help="Can be used for distant debugging.")
parser.add_argument('--text_a', type=str, default='', help="input text_a.")
parser.add_argument('--text_b', type=str, default='', help="input text_b.")
args = parser.parse_args()
if args.server_ip and args.server_port:
# Distant debugging - see https://code.visualstudio.com/docs/python/debugging#_attach-to-a-local-script
import ptvsd
print("Waiting for debugger attach")
ptvsd.enable_attach(address=(args.server_ip, args.server_port),
redirect_output=True)
ptvsd.wait_for_attach()
processors = {"ner": NerProcessor}
num_labels_task = {
"ner": 17 #6#12
}
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
if args.gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train and not args.do_eval and not args.do_pred:
raise ValueError(
"At least one of `do_train` or `do_eval` must be True.")
if os.path.exists(args.output_dir) and os.listdir(
args.output_dir) and args.do_train:
raise ValueError(
"Output directory ({}) already exists and is not empty.".format(
args.output_dir))
if not os.path.exists(args.output_dir):
os.makedirs(args.output_dir)
task_name = args.task_name.lower()
if task_name not in processors:
raise ValueError("Task not found: %s" % (task_name))
processor = processors[task_name]()
num_labels = num_labels_task[task_name]
label_list = processor.get_labels()
tokenizer = BertTokenizer.from_pretrained(args.bert_model,
do_lower_case=args.do_lower_case)
train_examples = None
num_train_optimization_steps = None
if args.do_train:
train_examples = processor.get_train_examples(args.data_dir)
#train_examples = train_examples[:1000]
print("train_examples :: ", len(list(train_examples)))
num_train_optimization_steps = int(
len(train_examples) / args.train_batch_size /
args.gradient_accumulation_steps) * args.num_train_epochs
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size(
)
# Prepare model
cache_dir = args.cache_dir if args.cache_dir else os.path.join(
PYTORCH_PRETRAINED_BERT_CACHE, 'distributed_{}'.format(
args.local_rank))
#imodel = BertForSequenceClassification.from_pretrained(args.bert_model,
# cache_dir=cache_dir,
# num_labels = num_labels)
model = BertForTokenClassification.from_pretrained(args.bert_model,
cache_dir=cache_dir,
num_labels=num_labels)
if args.fp16:
model.half()
#model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer,
static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=num_train_optimization_steps)
global_step = 0
nb_tr_steps = 0
tr_loss = 0
if args.do_train:
train_features = convert_examples_to_features(train_examples,
label_list,
args.max_seq_length,
tokenizer)
#all_input_ids = torch.tensor([f.input_ids for f in train_features], dtype=torch.long)
#all_input_mask = torch.tensor([f.input_mask for f in train_features], dtype=torch.long)
#all_segment_ids = torch.tensor([f.segment_ids for f in train_features], dtype=torch.long)
#all_label_ids = torch.tensor([f.label_id for f in train_features], dtype=torch.long)
all_input_ids = [f.input_ids for f in train_features]
all_input_mask = [f.input_mask for f in train_features]
all_segment_ids = [f.segment_ids for f in train_features]
all_label_ids = [f.label_id for f in train_features]
# convert to cuda
#all_input_ids = all_input_ids.to(device)
#all_input_mask = all_input_mask.to(device)
#all_segment_ids = all_segment_ids.to(device)
#all_label_ids = all_label_ids.to(device)
#train_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label_ids)
#if args.local_rank == -1:
# train_sampler = RandomSampler(train_data)
#else:
# train_sampler = DistributedSampler(train_data)
#train_dataloader = DataLoader(train_data, sampler=train_sampler, batch_size=args.train_batch_size)
# create model
#model.train()
model = KerasClassifier(build_fn=create_model(model), verbose=0)
# define the grid search parameters
batch_size = [10, 20, 40, 60, 80, 100]
epochs = [10, 50, 100]
param_grid = dict(batch_size=batch_size, epochs=epochs)
grid = GridSearchCV(estimator=model, param_grid=param_grid, n_jobs=-1)
#keras_input = KerasInputFormatter([
# ('input_one', all_input_ids),
# ('input_two', all_segment_ids),
# ('input_three', all_input_mask),])
#input_one = Input(name = 'input_one', shape = (128,))
#input_two = Input(name = 'input_two', shape = (128,))
#input_three = Input(name = 'input_three', shape = (128,))
#input_four = Input(name = 'input_four', shape = (128,))
#output = y # define model here
#self.model = Model(inputs = [input_one, input_two, input_three], outputs = output)
grid_result = grid.fit(
[[all_input_ids, all_segment_ids, all_input_mask]],
[all_label_ids])
# summarize results
print("Best: %f using %s" %
(grid_result.best_score_, grid_result.best_params_))
means = grid_result.cv_results_['mean_test_score']
stds = grid_result.cv_results_['std_test_score']
params = grid_result.cv_results_['params']
for mean, stdev, param in zip(means, stds, params):
print("%f (%f) with: %r" % (mean, stdev, param))
'''
model.train()
for _ in trange(int(args.num_train_epochs), desc="Epoch"):
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
for step, batch in enumerate(tqdm(train_dataloader, desc="Iteration")):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
#print(input_ids.shape,input_mask.shape,segment_ids.shape,label_ids.shape)
#print(input_ids[0])
#print(label_ids[0])
#logits = model(input_ids, segment_ids, input_mask)
#import pdb;pdb.set_trace()
#print(logits.view(-1, num_labels).shape, label_ids.view(-1).shape)
loss = model(input_ids, segment_ids, input_mask, label_ids)
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
# added clip
if args.clip is not None:
_ = torch.nn.utils.clip_grad_norm(model.parameters(), args.clip)
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if (step + 1) % args.gradient_accumulation_steps == 0:
if args.fp16:
# modify learning rate with special warm up BERT uses
# if args.fp16 is False, BertAdam is used that handles this automatically
lr_this_step = args.learning_rate * warmup_linear(global_step/num_train_optimization_steps, args.warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
'''
if args.do_train:
# Save a trained model and the associated configuration
model_to_save = model.module if hasattr(
model, 'module') else model # Only save the model it-self
output_model_file = os.path.join(args.output_dir, WEIGHTS_NAME)
torch.save(model_to_save.state_dict(), output_model_file)
output_config_file = os.path.join(args.output_dir, CONFIG_NAME)
with open(output_config_file, 'w') as f:
f.write(model_to_save.config.to_json_string())
# Load a trained model and config that you have fine-tuned
config = BertConfig(output_config_file)
#model = BertForSequenceClassification(config, num_labels=num_labels)
model = BertForTokenClassification(config, num_labels=num_labels)
model.load_state_dict(torch.load(output_model_file))
else:
#model = BertForSequenceClassification.from_pretrained(args.bert_model, num_labels=num_labels)
# Load a trained model and config that you have fine-tuned
print('for eval only......................')
output_model_file = os.path.join(args.output_dir, WEIGHTS_NAME)
output_config_file = os.path.join(args.output_dir, CONFIG_NAME)
config = BertConfig(output_config_file)
#model = BertForSequenceClassification(config, num_labels=num_labels)
model = BertForTokenClassification(config, num_labels=num_labels)
model.load_state_dict(torch.load(output_model_file))
model.to(device)
if args.do_eval and (args.local_rank == -1
or torch.distributed.get_rank() == 0):
eval_examples = processor.get_dev_examples(args.data_dir)
#import pdb;pdb.set_trace()
print("dev_eaxmples :: ", len(list(eval_examples)))
eval_features = convert_examples_to_features_pred(
eval_examples, label_list, args.max_seq_length, tokenizer)
all_input_ids = torch.tensor([f.input_ids for f in eval_features],
dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in eval_features],
dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in eval_features],
dtype=torch.long)
all_label_ids = torch.tensor([f.label_id for f in eval_features],
dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
model.eval()
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
predictions, true_labels = [], []
#predictions1 , true_labels1 = [], []
for input_ids, input_mask, segment_ids, label_ids in tqdm(
eval_dataloader, desc="Evaluating"):
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
tmp_eval_loss = model(input_ids, segment_ids, input_mask,
label_ids)
logits = model(input_ids, segment_ids, input_mask)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
# get index till '[SEP]'
#print("label_list index SEP : ",label_list.index('[SEP]'))
pred_xx = [list(p) for p in np.argmax(logits, axis=2)]
pred_xx = [i[:i.index(label_list.index('[SEP]'))] for i in pred_xx]
label_ids_xx = [
i[:i.index(label_list.index('[SEP]'))]
for i in label_ids.tolist()
]
#print(label_ids_xx)
#print(pred_xx)
# new add
tmp_s = [
max(len(i), len(j)) for i, j in zip(label_ids_xx, pred_xx)
]
tmp_u = [(i + [31] * (k - len(i)) if len(i) != k else i,
j + [31] * (k - len(j)) if len(j) != k else j)
for i, j, k in zip(label_ids_xx, pred_xx, tmp_s)]
tmp_d1 = [h[0] for h in tmp_u]
tmp_d2 = [h[1] for h in tmp_u]
#print([list(p) for p in np.argmax(logits, axis=2)][:5])
#tmp_eval_accuracy = flat_accuracy(logits, label_ids)
tmp_eval_accuracy = flat_accc(pred_xx, label_ids_xx)
#tmp_eval_accuracy = flat_accc(tmp_d1, tmp_d2)
predictions.extend(tmp_d2)
true_labels.append(tmp_d1)
#predictions1.extend(pred_xx)
#true_labels1.append(label_ids_xx)
#print("tmp accuracy : ",tmp_eval_accuracy)
eval_loss += tmp_eval_loss.mean().item()
eval_accuracy += tmp_eval_accuracy
nb_eval_examples += input_ids.size(0)
nb_eval_steps += 1
eval_loss = eval_loss / nb_eval_steps
eval_accuracy = eval_accuracy / nb_eval_steps
loss = tr_loss / nb_tr_steps if args.do_train else None
pred_tags = [[label_list[p_i] if p_i != 31 else 'XXX' for p_i in p]
for p in predictions]
valid_tags = [[
label_list[l_ii] if l_ii != 31 else 'YYY' for l_ii in l_i
] for l in true_labels for l_i in l]
print("valid_tags : ", valid_tags[:10])
print("pred_tags : ", pred_tags[:10])
print("Validation F1-Score: {}".format(f1_score(valid_tags,
pred_tags)))
print("Validation accuracy_score : {}".format(
accuracy_score(valid_tags, pred_tags)))
print("Validation classification_report : {}".format(
classification_report(valid_tags, pred_tags)))
#print("X Validation F1-Score: {}".format(f1_score(true_labels1, predictions1)))
#print("X Validation accuracy_score : {}".format(accuracy_score(true_labels1, predictions1)))
#print("X Validation classification_report : {}".format(classification_report(true_labels1, predictions1)))
result = {
'eval_loss': eval_loss,
'eval_accuracy': eval_accuracy,
'global_step': global_step,
'loss': loss
}
print(result)
output_eval_file = os.path.join(args.output_dir, "eval_results.txt")
with open(output_eval_file, "w") as writer:
for key in sorted(result.keys()):
writer.write("%s = %s\n" % (key, str(result[key])))
if args.do_test and (args.local_rank == -1
or torch.distributed.get_rank() == 0):
eval_examples = processor.get_test_examples(args.data_dir)
print('test examples len : {}'.format(len(eval_examples)))
#import pdb;pdb.set_trace()
eval_features = convert_examples_to_features_pred(
eval_examples, label_list, args.max_seq_length, tokenizer)
all_input_ids = torch.tensor([f.input_ids for f in eval_features],
dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in eval_features],
dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in eval_features],
dtype=torch.long)
all_label_ids = torch.tensor([f.label_id for f in eval_features],
dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
model.eval()
test_loss, test_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
predictions, true_labels = [], []
for input_ids, input_mask, segment_ids, label_ids in tqdm(
eval_dataloader, desc="Evaluating"):
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
tmp_eval_loss = model(input_ids, segment_ids, input_mask,
label_ids)
logits = model(input_ids, segment_ids, input_mask)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
# get index till '[SEP]'
#print("label_list index SEP : ",label_list.index('[SEP]'))
pred_xx = [list(p) for p in np.argmax(logits, axis=2)]
pred_xx = [i[:i.index(label_list.index('[SEP]'))] for i in pred_xx]
label_ids_xx = [
i[:i.index(label_list.index('[SEP]'))]
for i in label_ids.tolist()
]
#print(label_ids_xx)
#print(pred_xx)
# new add
tmp_s = [
max(len(i), len(j)) for i, j in zip(label_ids_xx, pred_xx)
]
tmp_u = [(i + [31] * (k - len(i)) if len(i) != k else i,
j + [31] * (k - len(j)) if len(j) != k else j)
for i, j, k in zip(label_ids_xx, pred_xx, tmp_s)]
tmp_d1 = [h[0] for h in tmp_u]
tmp_d2 = [h[1] for h in tmp_u]
#print([list(p) for p in np.argmax(logits, axis=2)][:5])
#tmp_eval_accuracy = flat_accuracy(logits, label_ids)
tmp_eval_accuracy = flat_accc(pred_xx, label_ids_xx)
#tmp_eval_accuracy = flat_accc(tmp_d1, tmp_d2)
predictions.extend(tmp_d2)
true_labels.append(tmp_d1)
#print("tmp accuracy : ",tmp_eval_accuracy)
test_loss += tmp_eval_loss.mean().item()
test_accuracy += tmp_eval_accuracy
nb_eval_examples += input_ids.size(0)
nb_eval_steps += 1
test_loss = test_loss / nb_eval_steps
test_accuracy = test_accuracy / nb_eval_steps
loss = tr_loss / nb_tr_steps if args.do_train else None
pred_tags = [[label_list[p_i] if p_i != 31 else 'XXX' for p_i in p]
for p in predictions]
valid_tags = [[
label_list[l_ii] if l_ii != 31 else 'YYY' for l_ii in l_i
] for l in true_labels for l_i in l]
print("valid_tags : ", valid_tags[:10])
print("pred_tags : ", pred_tags[:10])
print("Test F1-Score: {}".format(f1_score(valid_tags, pred_tags)))
print("Test accuracy_score : {}".format(
accuracy_score(valid_tags, pred_tags)))
print("Test classification_report : {}".format(
classification_report(valid_tags, pred_tags)))
#print("X Test F1-Score: {}".format(f1_score(true_labels, predictions)))
#print("X Test accuracy_score : {}".format(accuracy_score(true_labels, predictions)))
#print("X Test classification_report : {}".format(classification_report(true_labels, predictions)))
result = {
'test_loss': test_loss,
'test_accuracy': test_accuracy,
'global_step': global_step,
'loss': loss
}
print(result)
output_test_file = os.path.join(args.output_dir, "test_results.txt")
with open(output_test_file, "w") as writer:
for key in sorted(result.keys()):
writer.write("%s = %s\n" % (key, str(result[key])))
if args.do_pred and (args.local_rank == -1
or torch.distributed.get_rank() == 0):
#eval_examples = processor.get_dev_examples(args.data_dir)
model.eval()
while True:
print(
'enter a text to get NER. otherwise press Ctrl+C to close session.'
)
text_a = input('>>>')
#"Japan began the defence of their Asian Cup title with a lucky 2-1 win against Syria in a Group C championship match on Friday . ."
eval_examples = {
'text_a': text_a,
'text_b':
"The foodservice pie business does not fit our long-term growth strategy .",
'label': '1',
'guid': '12345'
}
eval_features = convert_examples_to_features_test(
eval_examples, label_list, args.max_seq_length, tokenizer)
all_input_ids = torch.tensor([f.input_ids for f in eval_features],
dtype=torch.long)
all_input_mask = torch.tensor(
[f.input_mask for f in eval_features], dtype=torch.long)
all_segment_ids = torch.tensor(
[f.segment_ids for f in eval_features], dtype=torch.long)
all_label_ids = torch.tensor([f.label_id for f in eval_features],
dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
#model.eval()
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
predictions, true_labels = [], []
for input_ids, input_mask, segment_ids, label_ids in tqdm(
eval_dataloader, desc="Evaluating"):
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
tmp_eval_loss = model(input_ids, segment_ids, input_mask,
label_ids)
logits = model(input_ids, segment_ids, input_mask)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
pred_xx = [list(p) for p in np.argmax(logits, axis=2)]
pred_xx = [
i[:i.index(label_list.index('[SEP]'))] for i in pred_xx
]
print(pred_xx)
print([[label_list[p_i] if p_i != 31 else 'XXX' for p_i in p]
for p in pred_xx])
def main(parser=None):
if not parser:
parser = argparse.ArgumentParser()
# General
parser.add_argument(
"--bert_model",
default="bert-base-cased",
type=str,
help=
"Bert pre-trained model selected in the list: bert-base-cased, bert-large-cased."
)
parser.add_argument("--config_path",
default=None,
type=str,
help="Bert config file path.")
parser.add_argument(
"--output_dir",
default='tmp',
type=str,
help=
"The output directory where the model predictions and checkpoints will be written."
)
parser.add_argument(
"--log_file",
default="training.log",
type=str,
help="The output directory where the log will be written.")
parser.add_argument("--model_recover_path",
default=None,
type=str,
help="The file of fine-tuned pretraining model.")
parser.add_argument(
"--do_train",
action='store_true',
help="Whether to run training. This should ALWAYS be set to True.")
parser.add_argument(
"--do_lower_case",
action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--train_batch_size",
default=64,
type=int,
help="Total batch size for training.")
parser.add_argument("--learning_rate",
default=3e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--label_smoothing",
default=0,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--weight_decay",
default=0.01,
type=float,
help="The weight decay rate for Adam.")
parser.add_argument("--finetune_decay",
action='store_true',
help="Weight decay to the original weights.")
parser.add_argument("--num_train_epochs",
default=30,
type=int,
help="Total number of training epochs to perform.")
parser.add_argument(
"--warmup_proportion",
default=0.1,
type=float,
help=
"Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument("--global_rank",
type=int,
default=-1,
help="global_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument(
'--gradient_accumulation_steps',
type=int,
default=1,
help=
"Number of updates steps to accumulate before performing a backward/update pass."
)
parser.add_argument(
'--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--fp32_embedding',
action='store_true',
help=
"Whether to use 32-bit float precision instead of 32-bit for embeddings"
)
parser.add_argument(
'--loss_scale',
type=float,
default=0,
help=
"Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument('--amp',
action='store_true',
help="Whether to use amp for fp16")
parser.add_argument(
'--from_scratch',
action='store_true',
help=
"Initialize parameters with random values (i.e., training from scratch)."
)
parser.add_argument('--new_segment_ids',
action='store_true',
help="Use new segment ids for bi-uni-directional LM.")
parser.add_argument('--tokenized_input',
action='store_true',
help="Whether the input is tokenized.")
parser.add_argument(
'--max_len_a',
type=int,
default=0,
help="Truncate_config: maximum length of segment A. 0 means none.")
parser.add_argument('--max_len_b',
type=int,
default=20,
help="Truncate_config: maximum length of segment B.")
parser.add_argument(
'--trunc_seg',
default='b',
help="Truncate_config: first truncate segment A/B (option: a, b).")
parser.add_argument(
'--always_truncate_tail',
action='store_true',
help="Truncate_config: Whether we should always truncate tail.")
parser.add_argument(
"--mask_prob",
default=0.15,
type=float,
help=
"Number of prediction is sometimes less than max_pred when sequence is short."
)
parser.add_argument('--max_pred',
type=int,
default=3,
help="Max tokens of prediction.")
parser.add_argument("--num_workers",
default=4,
type=int,
help="Number of workers for the data loader.")
parser.add_argument('--max_position_embeddings',
type=int,
default=None,
help="max position embeddings")
# Others for VLP
parser.add_argument(
"--src_file",
default=['/mnt/dat/COCO/annotations/dataset_coco.json'],
type=str,
nargs='+',
help="The input data file name.")
parser.add_argument('--len_vis_input', type=int, default=100)
parser.add_argument('--enable_visdom', action='store_true')
parser.add_argument('--visdom_port', type=int, default=8888)
# parser.add_argument('--resnet_model', type=str, default='imagenet_weights/resnet101.pth')
parser.add_argument('--image_root',
type=str,
default='/mnt/dat/COCO/images')
parser.add_argument('--dataset',
default='coco',
type=str,
help='coco | flickr30k | cc')
parser.add_argument('--split',
type=str,
nargs='+',
default=['train', 'restval'])
parser.add_argument('--world_size',
default=1,
type=int,
help='number of distributed processes')
parser.add_argument('--dist_url',
default='file://[PT_OUTPUT_DIR]/nonexistent_file',
type=str,
help='url used to set up distributed training')
parser.add_argument(
'--file_valid_jpgs',
default='/mnt/dat/COCO/annotations/coco_valid_jpgs.json',
type=str)
parser.add_argument('--sche_mode',
default='warmup_linear',
type=str,
help="warmup_linear | warmup_constant | warmup_cosine")
parser.add_argument('--drop_prob', default=0.1, type=float)
parser.add_argument('--use_num_imgs', default=-1, type=int)
parser.add_argument('--vis_mask_prob', default=0, type=float)
parser.add_argument('--max_drop_worst_ratio', default=0, type=float)
parser.add_argument('--drop_after', default=6, type=int)
parser.add_argument(
'--s2s_prob',
default=1,
type=float,
help="Percentage of examples that are bi-uni-directional LM (seq2seq)."
)
parser.add_argument(
'--bi_prob',
default=0,
type=float,
help="Percentage of examples that are bidirectional LM.")
parser.add_argument(
'--l2r_prob',
default=0,
type=float,
help=
"Percentage of examples that are unidirectional (left-to-right) LM.")
parser.add_argument('--enable_butd',
action='store_true',
help='set to take in region features')
parser.add_argument(
'--region_bbox_file',
default=
'coco_detection_vg_thresh0.2_feat_gvd_checkpoint_trainvaltest.h5',
type=str)
parser.add_argument(
'--region_det_file_prefix',
default=
'feat_cls_1000/coco_detection_vg_100dets_gvd_checkpoint_trainval',
type=str)
parser.add_argument('--tasks', default='img2txt', help='img2txt | vqa2')
parser.add_argument('--relax_projection',
action='store_true',
help="Use different projection layers for tasks.")
parser.add_argument('--scst',
action='store_true',
help='Self-critical sequence training')
args = parser.parse_args()
print('global_rank: {}, local rank: {}'.format(args.global_rank,
args.local_rank))
args.max_seq_length = args.max_len_b + args.len_vis_input + 3 # +3 for 2x[SEP] and [CLS]
args.mask_image_regions = (args.vis_mask_prob > 0
) # whether to mask out image regions
args.dist_url = args.dist_url.replace('[PT_OUTPUT_DIR]', args.output_dir)
# arguments inspection
assert (args.tasks in ('img2txt', 'vqa2'))
assert args.enable_butd == True, 'only support region attn! featmap attn deprecated'
assert (
not args.scst) or args.dataset == 'coco', 'scst support on coco only!'
if args.scst:
assert args.dataset == 'coco', 'scst support on coco only!'
assert args.max_pred == 0 and args.mask_prob == 0, 'no mask for scst!'
rl_crit = RewardCriterion()
if args.enable_butd:
assert (args.len_vis_input == 100)
args.region_bbox_file = os.path.join(args.image_root,
args.region_bbox_file)
args.region_det_file_prefix = os.path.join(
args.image_root, args.region_det_file_prefix) if args.dataset in (
'cc', 'coco') and args.region_det_file_prefix != '' else ''
# output config
os.makedirs(args.output_dir, exist_ok=True)
json.dump(args.__dict__,
open(os.path.join(args.output_dir, 'opt.json'), 'w'),
sort_keys=True,
indent=2)
logging.basicConfig(
filename=os.path.join(args.output_dir, args.log_file),
filemode='w',
format='%(asctime)s - %(levelname)s - %(name)s - %(message)s',
datefmt='%m/%d/%Y %H:%M:%S',
level=logging.INFO)
logger = logging.getLogger(__name__)
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl',
init_method=args.dist_url,
world_size=args.world_size,
rank=args.global_rank)
logger.info(
"device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".
format(device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(args.gradient_accumulation_steps))
args.train_batch_size = int(args.train_batch_size /
args.gradient_accumulation_steps)
# fix random seed
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
# plotting loss, optional
if args.enable_visdom:
import visdom
vis = visdom.Visdom(port=args.visdom_port, env=args.output_dir)
vis_window = {'iter': None, 'score': None}
tokenizer = BertTokenizer.from_pretrained(
args.bert_model,
do_lower_case=args.do_lower_case,
cache_dir=args.output_dir +
'/.pretrained_model_{}'.format(args.global_rank))
if args.max_position_embeddings:
tokenizer.max_len = args.max_position_embeddings
data_tokenizer = WhitespaceTokenizer(
) if args.tokenized_input else tokenizer
if args.do_train:
bi_uni_pipeline = [
seq2seq_loader.Preprocess4Seq2seq(
args.max_pred,
args.mask_prob,
list(tokenizer.vocab.keys()),
tokenizer.convert_tokens_to_ids,
args.max_seq_length,
new_segment_ids=args.new_segment_ids,
truncate_config={
'max_len_a': args.max_len_a,
'max_len_b': args.max_len_b,
'trunc_seg': args.trunc_seg,
'always_truncate_tail': args.always_truncate_tail
},
mask_image_regions=args.mask_image_regions,
mode="s2s",
len_vis_input=args.len_vis_input,
vis_mask_prob=args.vis_mask_prob,
enable_butd=args.enable_butd,
region_bbox_file=args.region_bbox_file,
region_det_file_prefix=args.region_det_file_prefix,
local_rank=args.local_rank,
load_vqa_ann=(args.tasks == 'vqa2'))
]
bi_uni_pipeline.append(
seq2seq_loader.Preprocess4Seq2seq(
args.max_pred,
args.mask_prob,
list(tokenizer.vocab.keys()),
tokenizer.convert_tokens_to_ids,
args.max_seq_length,
new_segment_ids=args.new_segment_ids,
truncate_config={
'max_len_a': args.max_len_a,
'max_len_b': args.max_len_b,
'trunc_seg': args.trunc_seg,
'always_truncate_tail': args.always_truncate_tail
},
mask_image_regions=args.mask_image_regions,
mode="bi",
len_vis_input=args.len_vis_input,
vis_mask_prob=args.vis_mask_prob,
enable_butd=args.enable_butd,
region_bbox_file=args.region_bbox_file,
region_det_file_prefix=args.region_det_file_prefix,
local_rank=args.local_rank,
load_vqa_ann=(args.tasks == 'vqa2')))
bi_uni_pipeline.append(
seq2seq_loader.Preprocess4Seq2seq(
args.max_pred,
args.mask_prob,
list(tokenizer.vocab.keys()),
tokenizer.convert_tokens_to_ids,
args.max_seq_length,
new_segment_ids=args.new_segment_ids,
truncate_config={
'max_len_a': args.max_len_a,
'max_len_b': args.max_len_b,
'trunc_seg': args.trunc_seg,
'always_truncate_tail': args.always_truncate_tail
},
mask_image_regions=args.mask_image_regions,
mode="l2r",
len_vis_input=args.len_vis_input,
vis_mask_prob=args.vis_mask_prob,
enable_butd=args.enable_butd,
region_bbox_file=args.region_bbox_file,
region_det_file_prefix=args.region_det_file_prefix,
local_rank=args.local_rank,
load_vqa_ann=(args.tasks == 'vqa2')))
train_dataset = seq2seq_loader.Img2txtDataset(
args.src_file,
args.image_root,
args.split,
args.train_batch_size,
data_tokenizer,
args.max_seq_length,
file_valid_jpgs=args.file_valid_jpgs,
bi_uni_pipeline=bi_uni_pipeline,
use_num_imgs=args.use_num_imgs,
s2s_prob=args.s2s_prob,
bi_prob=args.bi_prob,
l2r_prob=args.l2r_prob,
enable_butd=args.enable_butd,
tasks=args.tasks)
if args.world_size == 1:
train_sampler = RandomSampler(train_dataset, replacement=False)
else:
train_sampler = DistributedSampler(train_dataset)
train_dataloader = torch.utils.data.DataLoader(
train_dataset,
batch_size=args.train_batch_size,
sampler=train_sampler,
num_workers=args.num_workers,
collate_fn=batch_list_to_batch_tensors,
pin_memory=True)
# note: args.train_batch_size has been changed to (/= args.gradient_accumulation_steps)
t_total = int(
len(train_dataloader) * args.num_train_epochs * 1. /
args.gradient_accumulation_steps)
amp_handle = None
if args.fp16 and args.amp:
from apex import amp
amp_handle = amp.init(enable_caching=True)
logger.info("enable fp16 with amp")
# Prepare model
recover_step = _get_max_epoch_model(args.output_dir)
cls_num_labels = 2
type_vocab_size = 6 if args.new_segment_ids else 2
relax_projection = 4 if args.relax_projection else 0
task_idx_proj = 3 if args.tasks == 'img2txt' else 0
mask_word_id, eos_word_ids, pad_word_ids = tokenizer.convert_tokens_to_ids(
["[MASK]", "[SEP]", "[PAD]"]) # index in BERT vocab: 103, 102, 0
if (recover_step is None) and (args.model_recover_path is None):
# if _state_dict == {}, the parameters are randomly initialized
# if _state_dict == None, the parameters are initialized with bert-init
assert args.scst == False, 'must init from maximum likelihood training'
_state_dict = {} if args.from_scratch else None
model = BertForPreTrainingLossMask.from_pretrained(
args.bert_model,
state_dict=_state_dict,
num_labels=cls_num_labels,
type_vocab_size=type_vocab_size,
relax_projection=relax_projection,
config_path=args.config_path,
task_idx=task_idx_proj,
max_position_embeddings=args.max_position_embeddings,
label_smoothing=args.label_smoothing,
fp32_embedding=args.fp32_embedding,
cache_dir=args.output_dir +
'/.pretrained_model_{}'.format(args.global_rank),
drop_prob=args.drop_prob,
enable_butd=args.enable_butd,
len_vis_input=args.len_vis_input,
tasks=args.tasks)
global_step = 0
else:
if recover_step:
logger.info("***** Recover model: %d *****", recover_step)
model_recover = torch.load(
os.path.join(args.output_dir,
"model.{0}.bin".format(recover_step)))
# recover_step == number of epochs
global_step = math.floor(recover_step * t_total * 1. /
args.num_train_epochs)
elif args.model_recover_path:
logger.info("***** Recover model: %s *****",
args.model_recover_path)
model_recover = torch.load(args.model_recover_path)
global_step = 0
if not args.scst:
model = BertForPreTrainingLossMask.from_pretrained(
args.bert_model,
state_dict=model_recover,
num_labels=cls_num_labels,
type_vocab_size=type_vocab_size,
relax_projection=relax_projection,
config_path=args.config_path,
task_idx=task_idx_proj,
max_position_embeddings=args.max_position_embeddings,
label_smoothing=args.label_smoothing,
fp32_embedding=args.fp32_embedding,
cache_dir=args.output_dir +
'/.pretrained_model_{}'.format(args.global_rank),
drop_prob=args.drop_prob,
enable_butd=args.enable_butd,
len_vis_input=args.len_vis_input,
tasks=args.tasks)
else:
model = BertForSeq2SeqDecoder.from_pretrained(
args.bert_model,
max_position_embeddings=args.max_position_embeddings,
config_path=args.config_path,
state_dict=model_recover,
num_labels=cls_num_labels,
type_vocab_size=type_vocab_size,
task_idx=task_idx_proj,
mask_word_id=mask_word_id,
search_beam_size=1,
eos_id=eos_word_ids,
mode='s2s',
enable_butd=args.enable_butd,
len_vis_input=args.len_vis_input)
del model_recover
torch.cuda.empty_cache()
# deprecated
# from vlp.resnet import resnet
# cnn = resnet(args.resnet_model, _num_layers=101, _fixed_block=4, pretrained=True) # no finetuning
if args.fp16:
model.half()
# cnn.half()
if args.fp32_embedding:
model.bert.embeddings.word_embeddings.float()
model.bert.embeddings.position_embeddings.float()
model.bert.embeddings.token_type_embeddings.float()
model.to(device)
# cnn.to(device)
if args.local_rank != -1:
try:
# from apex.parallel import DistributedDataParallel as DDP
from torch.nn.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
model = DDP(model,
device_ids=[args.local_rank],
output_device=args.local_rank,
find_unused_parameters=True)
# cnn = DDP(cnn)
elif n_gpu > 1:
# model = torch.nn.DataParallel(model)
model = DataParallelImbalance(model)
# cnn = DataParallelImbalance(cnn)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
if args.fp16:
try:
# from apex.optimizers import FP16_Optimizer
from vlp_pretrained_bert.optimization_fp16 import FP16_Optimizer_State
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer_State(optimizer,
dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer_State(optimizer,
static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
schedule=args.sche_mode,
t_total=t_total)
if recover_step:
logger.info("***** Recover optimizer: %d *****", recover_step)
optim_recover = torch.load(
os.path.join(args.output_dir,
"optim.{0}.bin".format(recover_step)))
if hasattr(optim_recover, 'state_dict'):
optim_recover = optim_recover.state_dict()
optimizer.load_state_dict(optim_recover)
if args.loss_scale == 0:
logger.info("***** Recover optimizer: dynamic_loss_scale *****")
optimizer.dynamic_loss_scale = True
logger.info("***** CUDA.empty_cache() *****")
torch.cuda.empty_cache()
if args.do_train:
logger.info("***** Running training *****")
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", t_total)
logger.info(" Loader length = %d", len(train_dataloader))
model.train()
if recover_step:
start_epoch = recover_step + 1
else:
start_epoch = 1
for i_epoch in trange(start_epoch,
args.num_train_epochs + 1,
desc="Epoch"):
if args.local_rank >= 0:
train_sampler.set_epoch(i_epoch - 1)
iter_bar = tqdm(train_dataloader, desc='Iter (loss=X.XXX)')
nbatches = len(train_dataloader)
train_loss = []
pretext_loss = []
vqa2_loss = []
scst_reward = []
for step, batch in enumerate(iter_bar):
batch = [t.to(device) for t in batch]
input_ids, segment_ids, input_mask, lm_label_ids, masked_pos, masked_weights, is_next, task_idx, img, vis_masked_pos, vis_pe, ans_labels = batch
if args.fp16:
img = img.half()
vis_pe = vis_pe.half()
if args.enable_butd:
conv_feats = img.data # Bx100x2048
vis_pe = vis_pe.data
else:
conv_feats, _ = cnn(img.data) # Bx2048x7x7
conv_feats = conv_feats.view(conv_feats.size(0),
conv_feats.size(1),
-1).permute(0, 2,
1).contiguous()
if not args.scst:
loss_tuple = model(
conv_feats,
vis_pe,
input_ids,
segment_ids,
input_mask,
lm_label_ids,
ans_labels,
is_next,
masked_pos=masked_pos,
masked_weights=masked_weights,
task_idx=task_idx,
vis_masked_pos=vis_masked_pos,
mask_image_regions=args.mask_image_regions,
drop_worst_ratio=args.max_drop_worst_ratio
if i_epoch > args.drop_after else 0)
mean_reward = loss_tuple[0].new(1).fill_(0)
else:
# scst training
model.eval()
position_ids = torch.arange(
input_ids.size(1),
dtype=input_ids.dtype,
device=input_ids.device).unsqueeze(0).expand_as(
input_ids)
input_dummy = input_ids[:, :args.len_vis_input +
2] # +2 for [CLS] and [SEP]
greedy_res = input_ids.new(
input_ids.size(0),
input_ids.size(1) - args.len_vis_input - 2).fill_(0)
gen_result = input_ids.new(
input_ids.size(0),
input_ids.size(1) - args.len_vis_input - 2).fill_(0)
with torch.no_grad():
greedy_res_raw, _ = model(conv_feats,
vis_pe,
input_dummy,
segment_ids,
position_ids,
input_mask,
task_idx=task_idx,
sample_mode='greedy')
for b in range(greedy_res_raw.size(0)):
for idx in range(greedy_res_raw.size(1)):
if greedy_res_raw[b][idx] not in [
eos_word_ids, pad_word_ids
]:
greedy_res[b][idx] = greedy_res_raw[b][idx]
else:
if greedy_res_raw[b][idx] == eos_word_ids:
greedy_res[b][idx] = eos_word_ids
break
model.train()
gen_result_raw, sample_logprobs = model(
conv_feats,
vis_pe,
input_dummy,
segment_ids,
position_ids,
input_mask,
task_idx=task_idx,
sample_mode='sample')
for b in range(gen_result_raw.size(0)):
for idx in range(gen_result_raw.size(1)):
if gen_result_raw[b][idx] not in [
eos_word_ids, pad_word_ids
]:
gen_result[b][idx] = gen_result_raw[b][idx]
else:
if gen_result_raw[b][idx] == eos_word_ids:
gen_result[b][idx] = eos_word_ids
break
gt_ids = input_ids[:, args.len_vis_input + 2:]
reward = get_self_critical_reward(greedy_res,
gt_ids, gen_result,
gt_ids.size(0))
reward = torch.from_numpy(reward).float().to(
gen_result.device)
mean_reward = reward.mean()
loss = rl_crit(sample_logprobs, gen_result.data, reward)
loss_tuple = [
loss,
loss.new(1).fill_(0.),
loss.new(1).fill_(0.)
]
# disable pretext_loss_deprecated for now
masked_lm_loss, pretext_loss_deprecated, ans_loss = loss_tuple
if n_gpu > 1: # mean() to average on multi-gpu. For dist, this is done through gradient addition.
masked_lm_loss = masked_lm_loss.mean()
pretext_loss_deprecated = pretext_loss_deprecated.mean()
ans_loss = ans_loss.mean()
loss = masked_lm_loss + pretext_loss_deprecated + ans_loss
# logging for each step (i.e., before normalization by args.gradient_accumulation_steps)
iter_bar.set_description('Iter (loss=%5.3f)' % loss.item())
train_loss.append(loss.item())
pretext_loss.append(pretext_loss_deprecated.item())
vqa2_loss.append(ans_loss.item())
scst_reward.append(mean_reward.item())
if step % 100 == 0:
logger.info(
"Epoch {}, Iter {}, Loss {:.2f}, Pretext {:.2f}, VQA2 {:.2f}, Mean R {:.3f}\n"
.format(i_epoch, step, np.mean(train_loss),
np.mean(pretext_loss), np.mean(vqa2_loss),
np.mean(scst_reward)))
if args.enable_visdom:
if vis_window['iter'] is None:
vis_window['iter'] = vis.line(
X=np.tile(
np.arange((i_epoch - 1) * nbatches + step,
(i_epoch - 1) * nbatches + step + 1),
(1, 1)).T,
Y=np.column_stack(
(np.asarray([np.mean(train_loss)]), )),
opts=dict(title='Training Loss',
xlabel='Training Iteration',
ylabel='Loss',
legend=['total']))
else:
vis.line(X=np.tile(
np.arange((i_epoch - 1) * nbatches + step,
(i_epoch - 1) * nbatches + step + 1),
(1, 1)).T,
Y=np.column_stack(
(np.asarray([np.mean(train_loss)]), )),
opts=dict(title='Training Loss',
xlabel='Training Iteration',
ylabel='Loss',
legend=['total']),
win=vis_window['iter'],
update='append')
# ensure that accumlated gradients are normalized
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(loss)
if amp_handle:
amp_handle._clear_cache()
else:
loss.backward()
if (step + 1) % args.gradient_accumulation_steps == 0:
lr_this_step = args.learning_rate * \
warmup_linear(global_step/t_total,
args.warmup_proportion)
if args.fp16:
# modify learning rate with special warm up BERT uses
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
# Save a trained model
logger.info(
"** ** * Saving fine-tuned model and optimizer ** ** * ")
model_to_save = model.module if hasattr(
model, 'module') else model # Only save the model it-self
output_model_file = os.path.join(args.output_dir,
"model.{0}.bin".format(i_epoch))
output_optim_file = os.path.join(args.output_dir,
"optim.{0}.bin".format(i_epoch))
if args.global_rank in (
-1, 0): # save model if the first device or no dist
torch.save(
copy.deepcopy(model_to_save).cpu().state_dict(),
output_model_file)
# torch.save(optimizer.state_dict(), output_optim_file) # disable for now, need to sanitize state and ship everthing back to cpu
logger.info("***** CUDA.empty_cache() *****")
torch.cuda.empty_cache()
if args.world_size > 1:
torch.distributed.barrier()
def main():
args = parse_args()
args.distributed, args.world_size = init_distributed(args.local_rank)
if args.seed is not None:
print("Using seed = {}".format(args.seed))
torch.manual_seed(args.seed)
# Save configuration to file
config = {k: v for k, v in args.__dict__.items()}
config['timestamp'] = "{:.0f}".format(datetime.utcnow().timestamp())
config['local_timestamp'] = str(datetime.now())
run_dir = "./run/neumf/{}.{}".format(config['timestamp'],args.local_rank)
print("Saving config and results to {}".format(run_dir))
if not os.path.exists(run_dir) and run_dir != '':
os.makedirs(run_dir)
utils.save_config(config, run_dir)
# Check that GPUs are actually available
use_cuda = not args.no_cuda and torch.cuda.is_available()
# more like load trigger timmer now
mlperf_log.ncf_print(key=mlperf_log.PREPROC_HP_NUM_EVAL, value=args.valid_negative)
# The default of np.random.choice is replace=True, so does pytorch random_()
mlperf_log.ncf_print(key=mlperf_log.PREPROC_HP_SAMPLE_EVAL_REPLACEMENT, value=True)
mlperf_log.ncf_print(key=mlperf_log.INPUT_HP_SAMPLE_TRAIN_REPLACEMENT)
mlperf_log.ncf_print(key=mlperf_log.INPUT_STEP_EVAL_NEG_GEN)
# sync worker before timing.
if args.distributed:
torch.distributed.broadcast(torch.tensor([1], device="cuda"), 0)
torch.cuda.synchronize()
#===========================================================================
#== The clock starts on loading the preprocessed data. =====================
#===========================================================================
mlperf_log.ncf_print(key=mlperf_log.RUN_START)
run_start_time = time.time()
# load not converted data, just seperate one for test
train_ratings = torch.load(args.data+'/train_ratings.pt', map_location=torch.device('cuda:{}'.format(args.local_rank)))
test_ratings = torch.load(args.data+'/test_ratings.pt', map_location=torch.device('cuda:{}'.format(args.local_rank)))
# get input data
# get dims
nb_maxs = torch.max(train_ratings, 0)[0]
nb_users = nb_maxs[0].item()+1
nb_items = nb_maxs[1].item()+1
train_users = train_ratings[:,0]
train_items = train_ratings[:,1]
del nb_maxs, train_ratings
mlperf_log.ncf_print(key=mlperf_log.INPUT_SIZE, value=len(train_users))
# produce things not change between epoch
# mask for filtering duplicates with real sample
# note: test data is removed before create mask, same as reference
mat = torch.cuda.ByteTensor(nb_users, nb_items).fill_(1)
mat[train_users, train_items] = 0
# create label
train_label = torch.ones_like(train_users, dtype=torch.float32)
neg_label = torch.zeros_like(train_label, dtype=torch.float32)
neg_label = neg_label.repeat(args.negative_samples)
train_label = torch.cat((train_label,neg_label))
del neg_label
if args.fp16:
train_label = train_label.half()
# produce validation negative sample on GPU
all_test_users = test_ratings.shape[0]
test_users = test_ratings[:,0]
test_pos = test_ratings[:,1].reshape(-1,1)
test_negs = generate_neg(test_users, mat, nb_items, args.valid_negative, True)[1]
# create items with real sample at last position
test_users = test_users.reshape(-1,1).repeat(1,1+args.valid_negative)
test_items = torch.cat((test_negs.reshape(-1,args.valid_negative), test_pos), dim=1)
del test_ratings, test_negs
# generate dup mask and real indice for exact same behavior on duplication compare to reference
# here we need a sort that is stable(keep order of duplicates)
# this is a version works on integer
sorted_items, indices = torch.sort(test_items) # [1,1,1,2], [3,1,0,2]
sum_item_indices = sorted_items.float()+indices.float()/len(indices[0]) #[1.75,1.25,1.0,2.5]
indices_order = torch.sort(sum_item_indices)[1] #[2,1,0,3]
stable_indices = torch.gather(indices, 1, indices_order) #[0,1,3,2]
# produce -1 mask
dup_mask = (sorted_items[:,0:-1] == sorted_items[:,1:])
dup_mask = torch.cat((torch.zeros_like(test_pos, dtype=torch.uint8), dup_mask),dim=1)
dup_mask = torch.gather(dup_mask,1,stable_indices.sort()[1])
# produce real sample indices to later check in topk
sorted_items, indices = (test_items != test_pos).sort()
sum_item_indices = sorted_items.float()+indices.float()/len(indices[0])
indices_order = torch.sort(sum_item_indices)[1]
stable_indices = torch.gather(indices, 1, indices_order)
real_indices = stable_indices[:,0]
del sorted_items, indices, sum_item_indices, indices_order, stable_indices, test_pos
if args.distributed:
test_users = torch.chunk(test_users, args.world_size)[args.local_rank]
test_items = torch.chunk(test_items, args.world_size)[args.local_rank]
dup_mask = torch.chunk(dup_mask, args.world_size)[args.local_rank]
real_indices = torch.chunk(real_indices, args.world_size)[args.local_rank]
# make pytorch memory behavior more consistent later
torch.cuda.empty_cache()
mlperf_log.ncf_print(key=mlperf_log.INPUT_BATCH_SIZE, value=args.batch_size)
mlperf_log.ncf_print(key=mlperf_log.INPUT_ORDER) # we shuffled later with randperm
print('Load data done [%.1f s]. #user=%d, #item=%d, #train=%d, #test=%d'
% (time.time()-run_start_time, nb_users, nb_items, len(train_users),
nb_users))
# Create model
model = NeuMF(nb_users, nb_items,
mf_dim=args.factors, mf_reg=0.,
mlp_layer_sizes=args.layers,
mlp_layer_regs=[0. for i in args.layers])
if args.fp16:
model = model.half()
print(model)
print("{} parameters".format(utils.count_parameters(model)))
# Save model text description
with open(os.path.join(run_dir, 'model.txt'), 'w') as file:
file.write(str(model))
# Add optimizer and loss to graph
if args.fp16:
fp_optimizer = Fp16Optimizer(model, args.loss_scale)
params = fp_optimizer.fp32_params
else:
params = model.parameters()
#optimizer = torch.optim.Adam(params, lr=args.learning_rate, betas=(args.beta1, args.beta2), eps=args.eps)
# optimizer = AdamOpt(params, lr=args.learning_rate, betas=(args.beta1, args.beta2), eps=args.eps)
optimizer = FusedAdam(params, lr=args.learning_rate, betas=(args.beta1, args.beta2), eps=args.eps, eps_inside_sqrt=False)
criterion = nn.BCEWithLogitsLoss(reduction = 'none') # use torch.mean() with dim later to avoid copy to host
mlperf_log.ncf_print(key=mlperf_log.OPT_LR, value=args.learning_rate)
mlperf_log.ncf_print(key=mlperf_log.OPT_NAME, value="Adam")
mlperf_log.ncf_print(key=mlperf_log.OPT_HP_ADAM_BETA1, value=args.beta1)
mlperf_log.ncf_print(key=mlperf_log.OPT_HP_ADAM_BETA2, value=args.beta2)
mlperf_log.ncf_print(key=mlperf_log.OPT_HP_ADAM_EPSILON, value=args.eps)
mlperf_log.ncf_print(key=mlperf_log.MODEL_HP_LOSS_FN, value=mlperf_log.BCE)
if use_cuda:
# Move model and loss to GPU
model = model.cuda()
criterion = criterion.cuda()
if args.distributed:
model = DDP(model)
local_batch = args.batch_size // int(os.environ['WORLD_SIZE'])
else:
local_batch = args.batch_size
traced_criterion = torch.jit.trace(criterion.forward, (torch.rand(local_batch,1),torch.rand(local_batch,1)))
# Create files for tracking training
valid_results_file = os.path.join(run_dir, 'valid_results.csv')
# Calculate initial Hit Ratio and NDCG
test_x = test_users.view(-1).split(args.valid_batch_size)
test_y = test_items.view(-1).split(args.valid_batch_size)
hr, ndcg = val_epoch(model, test_x, test_y, dup_mask, real_indices, args.topk, samples_per_user=test_items.size(1),
num_user=all_test_users, distributed=args.distributed)
print('Initial HR@{K} = {hit_rate:.4f}, NDCG@{K} = {ndcg:.4f}'
.format(K=args.topk, hit_rate=hr, ndcg=ndcg))
success = False
mlperf_log.ncf_print(key=mlperf_log.TRAIN_LOOP)
for epoch in range(args.epochs):
mlperf_log.ncf_print(key=mlperf_log.TRAIN_EPOCH, value=epoch)
mlperf_log.ncf_print(key=mlperf_log.INPUT_HP_NUM_NEG, value=args.negative_samples)
mlperf_log.ncf_print(key=mlperf_log.INPUT_STEP_TRAIN_NEG_GEN)
begin = time.time()
# prepare data for epoch
neg_users, neg_items = generate_neg(train_users, mat, nb_items, args.negative_samples)
epoch_users = torch.cat((train_users,neg_users))
epoch_items = torch.cat((train_items,neg_items))
del neg_users, neg_items
# shuffle prepared data and split into batches
epoch_indices = torch.randperm(len(epoch_users), device='cuda:{}'.format(args.local_rank))
epoch_users = epoch_users[epoch_indices]
epoch_items = epoch_items[epoch_indices]
epoch_label = train_label[epoch_indices]
if args.distributed:
epoch_users = torch.chunk(epoch_users, args.world_size)[args.local_rank]
epoch_items = torch.chunk(epoch_items, args.world_size)[args.local_rank]
epoch_label = torch.chunk(epoch_label, args.world_size)[args.local_rank]
epoch_users_list = epoch_users.split(local_batch)
epoch_items_list = epoch_items.split(local_batch)
epoch_label_list = epoch_label.split(local_batch)
# only print progress bar on rank 0
num_batches = (len(epoch_indices) + args.batch_size - 1) // args.batch_size
if args.local_rank == 0:
qbar = tqdm.tqdm(range(num_batches))
else:
qbar = range(num_batches)
# handle extremely rare case where last batch size < number of worker
if len(epoch_users_list) < num_batches:
print("epoch_size % batch_size < number of worker!")
exit(1)
for i in qbar:
# selecting input from prepared data
user = epoch_users_list[i]
item = epoch_items_list[i]
label = epoch_label_list[i].view(-1,1)
for p in model.parameters():
p.grad = None
outputs = model(user, item)
loss = traced_criterion(outputs, label).float()
loss = torch.mean(loss.view(-1), 0)
if args.fp16:
fp_optimizer.step(loss, optimizer)
else:
loss.backward()
optimizer.step()
del epoch_users, epoch_items, epoch_label, epoch_users_list, epoch_items_list, epoch_label_list, user, item, label
train_time = time.time() - begin
begin = time.time()
mlperf_log.ncf_print(key=mlperf_log.EVAL_START)
hr, ndcg = val_epoch(model, test_x, test_y, dup_mask, real_indices, args.topk, samples_per_user=test_items.size(1),
num_user=all_test_users, output=valid_results_file, epoch=epoch, distributed=args.distributed)
val_time = time.time() - begin
print('Epoch {epoch}: HR@{K} = {hit_rate:.4f}, NDCG@{K} = {ndcg:.4f},'
' train_time = {train_time:.2f}, val_time = {val_time:.2f}'
.format(epoch=epoch, K=args.topk, hit_rate=hr,
ndcg=ndcg, train_time=train_time,
val_time=val_time))
mlperf_log.ncf_print(key=mlperf_log.EVAL_ACCURACY, value={"epoch": epoch, "value": hr})
mlperf_log.ncf_print(key=mlperf_log.EVAL_TARGET, value=args.threshold)
mlperf_log.ncf_print(key=mlperf_log.EVAL_STOP)
if args.threshold is not None:
if hr >= args.threshold:
print("Hit threshold of {}".format(args.threshold))
success = True
break
mlperf_log.ncf_print(key=mlperf_log.RUN_STOP, value={"success": success})
run_stop_time = time.time()
mlperf_log.ncf_print(key=mlperf_log.RUN_FINAL)
# easy way of tracking mlperf score
if success:
print("mlperf_score", run_stop_time - run_start_time)
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument(
"--data_dir",
default=None,
type=str,
required=True,
help=
"The input data dir. Should contain the .tsv files (or other data files) for the task."
)
parser.add_argument(
"--bert_model",
default=None,
type=str,
required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-base-multilingual, bert-base-chinese."
)
parser.add_argument(
"--output_dir",
default=None,
type=str,
required=True,
help="The output directory where the model checkpoints will be written."
)
## Other parameters
parser.add_argument("--trained_model_dir",
default="",
type=str,
help="Where is the fine-tuned BERT model?")
parser.add_argument(
"--max_seq_length",
default=128,
type=int,
help=
"The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--do_train",
action='store_true',
help="Whether to run training.")
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument("--learning_rate",
default=3e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs",
default=3.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument(
"--warmup_proportion",
default=0.1,
type=float,
help=
"Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument(
"--do_lower_case",
action='store_true',
help=
"Whether to lower case the input text. True for uncased models, False for cased models."
)
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument(
'--gradient_accumulation_steps',
type=int,
default=1,
help=
"Number of updates steps to accumualte before performing a backward/update pass."
)
parser.add_argument(
'--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--loss_scale',
type=float,
default=0,
help=
"Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
args = parser.parse_args()
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logger.info(
"device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".
format(device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train:
raise ValueError(
"Training is currently the only implemented execution option. Please set `do_train`."
)
if os.path.exists(args.output_dir) and os.listdir(args.output_dir):
#raise ValueError("Output directory ({}) already exists and is not empty.".format(args.output_dir))
print("WARNING: Output directory already exists and is not empty.")
if not os.path.exists(args.output_dir):
os.makedirs(args.output_dir)
tokenizer = BertTokenizer.from_pretrained(args.bert_model,
do_lower_case=args.do_lower_case)
#train_examples = None
num_train_optimization_steps = None
if args.do_train:
train_dataset = BERTDataset(args.data_dir,
tokenizer,
seq_len=args.max_seq_length)
num_train_optimization_steps = int(
len(train_dataset) / args.train_batch_size /
args.gradient_accumulation_steps) * args.num_train_epochs
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size(
)
# Prepare model
if args.trained_model_dir:
if os.path.exists(os.path.join(args.output_dir, WEIGHTS_NAME)):
previous_state_dict = torch.load(
os.path.join(args.output_dir, WEIGHTS_NAME))
else:
from collections import OrderedDict
previous_state_dict = OrderedDict()
distant_state_dict = torch.load(
os.path.join(args.trained_model_dir, WEIGHTS_NAME))
previous_state_dict.update(
distant_state_dict
) # note that the final layers of previous model and distant model must have different attribute names!
model = MyBertForMaskedLM.from_pretrained(
args.trained_model_dir, state_dict=previous_state_dict)
else:
model = MyBertForMaskedLM.from_pretrained(args.bert_model)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer,
static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=num_train_optimization_steps)
global_step = 0
if args.do_train:
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_dataset))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
if args.local_rank == -1:
train_sampler = RandomSampler(train_dataset)
else:
#TODO: check if this works with current data generator from disk that relies on next(file)
# (it doesn't return item back by index)
train_sampler = DistributedSampler(train_dataset)
train_dataloader = DataLoader(train_dataset,
sampler=train_sampler,
batch_size=args.train_batch_size)
model.train()
for _ in trange(int(args.num_train_epochs), desc="Epoch"):
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
for step, batch in enumerate(
tqdm(train_dataloader, desc="Iteration")):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, lm_label_ids = batch
loss = model(input_ids, segment_ids, input_mask, lm_label_ids)
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if (step + 1) % args.gradient_accumulation_steps == 0:
if args.fp16:
# modify learning rate with special warm up BERT uses
# if args.fp16 is False, BertAdam is used that handles this automatically
lr_this_step = args.learning_rate * warmup_linear(
global_step / num_train_optimization_steps,
args.warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
# Save a trained model
logger.info("** ** * Saving fine - tuned model ** ** * ")
model_to_save = model.module if hasattr(
model, 'module') else model # Only save the model it-self
output_model_file = os.path.join(args.output_dir, WEIGHTS_NAME)
torch.save(model_to_save.state_dict(), output_model_file)
output_config_file = os.path.join(args.output_dir, CONFIG_NAME)
with open(output_config_file, 'w') as f:
f.write(model_to_save.config.to_json_string())
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument("--bert_model", default=None, type=str, required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-base-multilingual, bert-base-chinese.")
parser.add_argument("--output_dir", default=None, type=str, required=True,
help="The output directory where the model checkpoints and predictions will be written.")
parser.add_argument("--trained_model", default=None, type=str, required=True,
help="Trained Model for dev set loss calculation")
## Other parameters
parser.add_argument("--train_file", default=None, type=str, help="SQuAD json for training. E.g., train-v1.1.json")
parser.add_argument("--predict_file", default=None, type=str,
help="SQuAD json for predictions. E.g., dev-v1.1.json or test-v1.1.json")
parser.add_argument("--max_seq_length", default=384, type=int,
help="The maximum total input sequence length after WordPiece tokenization. Sequences "
"longer than this will be truncated, and sequences shorter than this will be padded.")
parser.add_argument("--doc_stride", default=128, type=int,
help="When splitting up a long document into chunks, how much stride to take between chunks.")
parser.add_argument("--max_query_length", default=64, type=int,
help="The maximum number of tokens for the question. Questions longer than this will "
"be truncated to this length.")
parser.add_argument("--do_train", default=False, action='store_true', help="Whether to run training.")
parser.add_argument("--do_predict", default=False, action='store_true', help="Whether to run eval on the dev set.")
parser.add_argument("--train_batch_size", default=32, type=int, help="Total batch size for training.")
parser.add_argument("--predict_batch_size", default=8, type=int, help="Total batch size for predictions.")
parser.add_argument("--learning_rate", default=5e-5, type=float, help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs", default=3.0, type=float,
help="Total number of training epochs to perform.")
parser.add_argument("--warmup_proportion", default=0.1, type=float,
help="Proportion of training to perform linear learning rate warmup for. E.g., 0.1 = 10% "
"of training.")
parser.add_argument("--n_best_size", default=20, type=int,
help="The total number of n-best predictions to generate in the nbest_predictions.json "
"output file.")
parser.add_argument("--max_answer_length", default=30, type=int,
help="The maximum length of an answer that can be generated. This is needed because the start "
"and end predictions are not conditioned on one another.")
parser.add_argument("--verbose_logging", default=False, action='store_true',
help="If true, all of the warnings related to data processing will be printed. "
"A number of warnings are expected for a normal SQuAD evaluation.")
parser.add_argument("--no_cuda",
default=False,
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument('--gradient_accumulation_steps',
type=int,
default=1,
help="Number of updates steps to accumulate before performing a backward/update pass.")
parser.add_argument("--do_lower_case",
default=True,
action='store_true',
help="Whether to lower case the input text. True for uncased models, False for cased models.")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--fp16',
default=False,
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument('--loss_scale',
type=float, default=0,
help="Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
args = parser.parse_args()
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available() and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logger.info("device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".format(
device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError("Invalid gradient_accumulation_steps parameter: {}, should be >= 1".format(
args.gradient_accumulation_steps))
args.train_batch_size = int(args.train_batch_size / args.gradient_accumulation_steps)
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train and not args.do_predict:
raise ValueError("At least one of `do_train` or `do_predict` must be True.")
if args.do_train:
if not args.train_file:
raise ValueError(
"If `do_train` is True, then `train_file` must be specified.")
if args.do_predict:
if not args.predict_file:
raise ValueError(
"If `do_predict` is True, then `predict_file` must be specified.")
# if os.path.exists(args.output_dir) and os.listdir(args.output_dir):
# raise ValueError("Output directory () already exists and is not empty.")
# os.makedirs(args.output_dir, exist_ok=True)
tokenizer = BertTokenizer.from_pretrained(args.bert_model)
train_examples = None
num_train_steps = None
if args.do_train:
train_examples = read_squad_examples(
input_file=args.train_file, is_training=True)
num_train_steps = int(
len(train_examples) / args.train_batch_size / args.gradient_accumulation_steps * args.num_train_epochs)
# Prepare model
# model = BertForQuestionAnswering.from_pretrained(args.bert_model,
# cache_dir=PYTORCH_PRETRAINED_BERT_CACHE / 'distributed_{}'.format(args.local_rank))
# Load a trained model that you have fine-tuned
model_state_dict = torch.load(args.trained_model, map_location=lambda storage, loc: storage)
model = BertForQuestionAnswering.from_pretrained(args.bert_model, state_dict=model_state_dict)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError("Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
# hack to remove pooler, which is not used
# thus it produce None grad that break apex
param_optimizer = [n for n in param_optimizer if 'pooler' not in n[0]]
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)], 'weight_decay': 0.01},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
t_total = num_train_steps
if args.local_rank != -1:
t_total = t_total // torch.distributed.get_world_size()
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError("Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer, static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=t_total)
global_step = 0
if args.do_train:
cached_train_features_file = args.train_file+'_{0}_{1}_{2}_{3}'.format(
args.bert_model, str(args.max_seq_length), str(args.doc_stride), str(args.max_query_length))
train_features = None
try:
with open(cached_train_features_file, "rb") as reader:
train_features = pickle.load(reader)
except:
train_features = convert_examples_to_features(
examples=train_examples,
tokenizer=tokenizer,
max_seq_length=args.max_seq_length,
doc_stride=args.doc_stride,
max_query_length=args.max_query_length,
is_training=True)
if args.local_rank == -1 or torch.distributed.get_rank() == 0:
logger.info(" Saving train features into cached file %s", cached_train_features_file)
with open(cached_train_features_file, "wb") as writer:
pickle.dump(train_features, writer)
logger.info("***** Running training *****")
logger.info(" Num orig examples = %d", len(train_examples))
logger.info(" Num split examples = %d", len(train_features))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_steps)
all_input_ids = torch.tensor([f.input_ids for f in train_features], dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in train_features], dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in train_features], dtype=torch.long)
all_start_positions = torch.tensor([f.start_position for f in train_features], dtype=torch.long)
all_end_positions = torch.tensor([f.end_position for f in train_features], dtype=torch.long)
train_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids,
all_start_positions, all_end_positions)
if args.local_rank == -1:
train_sampler = RandomSampler(train_data)
else:
train_sampler = DistributedSampler(train_data)
train_dataloader = DataLoader(train_data, sampler=train_sampler, batch_size=args.train_batch_size)
model.train()
loss_dev = {}
ep = 0
for _ in trange(int(args.num_train_epochs), desc="Epoch"):
batch_count = 0
loss_dev["Epoch: " + str(ep)] = 0
for step, batch in enumerate(tqdm(train_dataloader, desc="Iteration")):
if n_gpu == 1:
batch = tuple(t.to(device) for t in batch) # multi-gpu does scattering it-self
input_ids, input_mask, segment_ids, start_positions, end_positions = batch
loss = model(input_ids, segment_ids, input_mask, start_positions, end_positions)
loss_dev["Epoch: " + str(ep)] = loss_dev["Epoch: " + str(ep)] +loss.item()
# with open(str(args.output_dir) + "Loss_Train.txt", "wb") as fp: #Pickling
# pickle.dump(loss_dev, fp)
# if n_gpu > 1:
# loss = loss.mean() # mean() to average on multi-gpu.
# if args.gradient_accumulation_steps > 1:
# loss = loss / args.gradient_accumulation_steps
# if args.fp16:
# optimizer.backward(loss)
# else:
# loss.backward()
# if (step + 1) % args.gradient_accumulation_steps == 0:
# # modify learning rate with special warm up BERT uses
# lr_this_step = args.learning_rate * warmup_linear(global_step/t_total, args.warmup_proportion)
# for param_group in optimizer.param_groups:
# param_group['lr'] = lr_this_step
# optimizer.step()
# optimizer.zero_grad()
# global_step += 1
batch_count += 1
# # Save a trained model
# model_to_save = model.module if hasattr(model, 'module') else model # Only save the model it-self
# output_model_file = os.path.join(args.output_dir, "pytorch_model_epoch" + str(ep) + ".bin")
# torch.save(model_to_save.state_dict(), output_model_file)
#ep = ep+1
loss_dev["Epoch: " + str(ep)] =loss_dev["Epoch: " + str(ep)]/batch_count
with open(str(args.output_dir) + str(args.trained_model[17:]) + "_Loss_Eval_Dev_" + str(args.trained_model[-5]) + ".pickle", "wb") as fp: #Pickling
pickle.dump(loss_dev, fp)
# # Load a trained model that you have fine-tuned
# model_state_dict = torch.load(output_model_file)
# model = BertForQuestionAnswering.from_pretrained(args.bert_model, state_dict=model_state_dict)
# model.to(device)
if args.do_predict and (args.local_rank == -1 or torch.distributed.get_rank() == 0):
eval_examples = read_squad_examples(
input_file=args.predict_file, is_training=False)
eval_features = convert_examples_to_features(
examples=eval_examples,
tokenizer=tokenizer,
max_seq_length=args.max_seq_length,
doc_stride=args.doc_stride,
max_query_length=args.max_query_length,
is_training=False)
logger.info("***** Running predictions *****")
logger.info(" Num orig examples = %d", len(eval_examples))
logger.info(" Num split examples = %d", len(eval_features))
logger.info(" Batch size = %d", args.predict_batch_size)
all_input_ids = torch.tensor([f.input_ids for f in eval_features], dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in eval_features], dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in eval_features], dtype=torch.long)
all_example_index = torch.arange(all_input_ids.size(0), dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_example_index)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data, sampler=eval_sampler, batch_size=args.predict_batch_size)
model.eval()
all_results = []
logger.info("Start evaluating")
for input_ids, input_mask, segment_ids, example_indices in tqdm(eval_dataloader, desc="Evaluating"):
if len(all_results) % 1000 == 0:
logger.info("Processing example: %d" % (len(all_results)))
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
with torch.no_grad():
batch_start_logits, batch_end_logits = model(input_ids, segment_ids, input_mask)
for i, example_index in enumerate(example_indices):
start_logits = batch_start_logits[i].detach().cpu().tolist()
end_logits = batch_end_logits[i].detach().cpu().tolist()
eval_feature = eval_features[example_index.item()]
unique_id = int(eval_feature.unique_id)
all_results.append(RawResult(unique_id=unique_id,
start_logits=start_logits,
end_logits=end_logits))
output_prediction_file = os.path.join(args.output_dir, "predictions.json")
output_nbest_file = os.path.join(args.output_dir, "nbest_predictions.json")
write_predictions(eval_examples, eval_features, all_results,
args.n_best_size, args.max_answer_length,
args.do_lower_case, output_prediction_file,
output_nbest_file, args.verbose_logging)
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument("--model_dir", default=None, type=str, required=True, help="")
parser.add_argument("--my_config", default=None, type=str, required=True)
parser.add_argument("--feature_path", default=None, type=str, required=True)
parser.add_argument("--output_dir", default=None, type=str, required=True,
help="The output directory where the model checkpoints and predictions will be written.")
## Other parameters
parser.add_argument("--train_pattern", default=None, type=str, help="training data path.")
parser.add_argument("--valid_pattern", default=None, type=str, help="validation data path.")
parser.add_argument("--test_pattern", default=None, type=str, help="test data path.")
parser.add_argument("--max_seq_length", default=512, type=int,
help="The maximum total input sequence length after WordPiece tokenization. Sequences "
"longer than this will be truncated, and sequences shorter than this will be padded.")
parser.add_argument("--doc_stride", default=128, type=int,
help="When splitting up a long document into chunks, how much stride to take between chunks.")
parser.add_argument("--max_query_length", default=64, type=int,
help="The maximum number of tokens for the question. Questions longer than this will "
"be truncated to this length.")
parser.add_argument("--do_train", action='store_true', help="Whether to run training.")
parser.add_argument("--do_predict", action='store_true', help="Whether to run eval on the dev set.")
parser.add_argument("--report_steps", default=50, type=int, help="report steps when training.")
parser.add_argument("--train_batch_size", default=4, type=int, help="Total batch size for training.")
parser.add_argument("--predict_batch_size", default=8, type=int, help="Total batch size for predictions.")
parser.add_argument("--learning_rate", default=2e-5, type=float, help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs", default=3.0, type=float,
help="Total number of training epochs to perform.")
parser.add_argument("--warmup_steps", default=-1, type=int)
parser.add_argument("--warmup_proportion", default=0.1, type=float,
help="Proportion of training to perform linear learning rate warmup for. E.g., 0.1 = 10%% "
"of training.")
parser.add_argument("--n_best_size", default=20, type=int,
help="The total number of n-best predictions to generate in the nbest_predictions.json "
"output file.")
parser.add_argument("--max_answer_length", default=30, type=int,
help="The maximum length of an answer that can be generated. This is needed because the start "
"and end predictions are not conditioned on one another.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument('--train_size',type=int,default=10000,help="Use how many train data")
parser.add_argument('--gradient_accumulation_steps',
type=int,
default=1,
help="Number of updates steps to accumulate before performing a backward/update pass.")
parser.add_argument("--do_lower_case",
action='store_true',
help="Whether to lower case the input text. True for uncased models, False for cased models.")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument('--loss_scale',
type=float, default=0,
help="Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument('--frame_name',type=str,default='elgeish/cs224n-squad2.0-albert-large-v2')
parser.add_argument('--DataName',type=str,default="SST")
parser.add_argument("--adam_epsilon", default=1e-6, type=float,
help="Epsilon for Adam optimizer.")
parser.add_argument("--weight_decay", default=0.0, type=float,
help="Weight decay if we apply some.")
args = parser.parse_args()
#print(args)
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available() and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
torch.distributed.init_process_group(backend='nccl')
n_gpu = 1
logging.basicConfig(format='%(asctime)s - %(levelname)s - %(name)s - %(message)s',
datefmt='%m/%d/%Y %H:%M:%S',
level=logging.INFO if args.local_rank in [-1, 0] else logging.WARN)
logger.info("device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".format(
device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError("Invalid gradient_accumulation_steps parameter: {}, should be >= 1".format(
args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train and not args.do_predict:
raise ValueError("At least one of `do_train` or `do_predict` must be True.")
if args.do_train:
if not args.train_pattern:
raise ValueError(
"If `do_train` is True, then `train_pattern` must be specified.")
if args.do_predict:
if not args.test_pattern:
raise ValueError(
"If `do_predict` is True, then `test_pattern` must be specified.")
if not os.path.exists(args.output_dir):
os.makedirs(args.output_dir)
# Prepare model
my_config = Config(args.my_config)
my_config.num_edge_types = sum(EdgePosition.max_edge_types)
# my_config.forward_edges = [EdgeType.TOKEN_TO_SENTENCE,
# EdgeType.SENTENCE_TO_PARAGRAPH,
# EdgeType.PARAGRAPH_TO_DOCUMENT]
#print(my_config)
if args.do_train:
pretrained_config_file = os.path.join(args.model_dir, CONFIG_NAME)
bert_config = BertConfig(pretrained_config_file)
pretrained_model_file = os.path.join(args.model_dir, WEIGHTS_NAME)
model = NqModel(bert_config=bert_config, my_config=my_config)
#model_dict = model.state_dict()
#pretrained_model_dict = torch.load(pretrained_model_file, map_location=lambda storage, loc: storage)
#pretrained_model_dict = {k: v for k, v in pretrained_model_dict.items() if k in model_dict.keys()}
#model_dict.update(pretrained_model_dict)
#model.load_state_dict(model_dict)
else:
pretrained_config_file = os.path.join(args.model_dir, CONFIG_NAME)
bert_config = BertConfig(pretrained_config_file)
model = NqModel(bert_config=bert_config, my_config=my_config)
pretrained_model_file = os.path.join(args.model_dir, WEIGHTS_NAME)
model.load_state_dict(torch.load(pretrained_model_file))
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
num_train_features = None
num_train_optimization_steps = None
#train_dataset = None
#train_features = None
# output_model_file = os.path.join(args.output_dir, WEIGHTS_NAME)
# model.load_state_dict(torch.load(output_model_file))
if args.do_train:
num_train_features = 0
for data_path in glob(args.train_pattern):
train_dataset = NqDataset(args, data_path, is_training=True)
train_features = train_dataset.features
num_train_features += len(train_dataset.features)
print(num_train_features,args.train_batch_size,args.gradient_accumulation_steps)
num_train_optimization_steps = int(
(num_train_features / args.train_batch_size) / args.gradient_accumulation_steps) * args.num_train_epochs
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size()
# Prepare optimizer
param_optimizer = list(model.named_parameters())
# print(param_optimizer)
#print([i for i,j in model.named_parameters()])
# hack to remove pooler, which is not used
# thus it produce None grad that break apex
param_optimizer = [n for n in param_optimizer ]
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)], 'weight_decay': args.weight_decay},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.00}
]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer, static_loss_scale=args.loss_scale)
else:
if args.warmup_steps > 0:
args.warmup_proportion = min(args.warmup_proportion, args.warmup_steps / num_train_optimization_steps)
# optimizer = BertAdam(optimizer_grouped_parameters,
# lr=args.learning_rate,
# warmup=args.warmup_proportion,
# t_total=num_train_optimization_steps)
optimizer = AdamW(optimizer_grouped_parameters, lr=args.learning_rate, eps=args.adam_epsilon)
scheduler = WarmupLinearSchedule(optimizer,
warmup_steps=int(args.warmup_proportion * num_train_optimization_steps)
if args.warmup_proportion > 0 else args.warmup_steps,
t_total=num_train_optimization_steps)
global_step = 0
last_acc = 84.3704066634003
if args.do_train:
logger.info("***** Running training *****")
logger.info(" Num split examples = %d", num_train_features)
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
tr_loss, report_loss = 0.0, 0.0
nb_tr_examples = 0
model.zero_grad()
for _ in trange(int(args.num_train_epochs), desc="Epoch"):
logging.info("Loggin TEST!")
for data_path in glob(args.train_pattern):
#logging.info("Reading data from {}.".format(data_path))
model.train()
train_dataset = NqDataset(args, data_path, is_training=True)
train_features = train_dataset.features
#logging.info("Data Load Done!")
if args.local_rank == -1:
train_sampler = RandomSampler(train_features)
else:
train_sampler = DistributedSampler(train_features)
train_dataloader = DataLoader(train_features, sampler=train_sampler, batch_size=args.train_batch_size,
collate_fn=batcher(device, is_training=True), num_workers=0)
train_features = train_dataset.features
logging.info("Data ready {} ".format(len(train_features)))
for step, batch in enumerate(train_dataloader):
loss = model(batch.input_ids, batch.input_mask, batch.segment_ids, batch.st_mask,
(batch.edges_src, batch.edges_tgt, batch.edges_type, batch.edges_pos),batch.label)
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.local_rank != -1:
loss = loss + 0 * sum([x.sum() for x in model.parameters()])
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
torch.nn.utils.clip_grad_norm_(model.parameters(), 1.0)
if (step + 1) % args.gradient_accumulation_steps == 0:
scheduler.step()
optimizer.step()
optimizer.zero_grad()
global_step += 1
tr_loss += loss.item()
nb_tr_examples += 1
if (step + 1) % args.gradient_accumulation_steps == 0 and (
global_step + 1) % args.report_steps == 0 and (
args.local_rank == -1 or torch.distributed.get_rank() == 0):
lr_this_step = get_lr(optimizer)
logging.info("Epoch={} iter={} lr={:.12f} train_ave_loss={:.6f} .".format(
# _, global_step, lr_this_step, tr_loss / nb_tr_examples))
_, global_step, lr_this_step, (tr_loss - report_loss) / args.report_steps))
report_loss = tr_loss
model.eval()
model.zero_grad()
model.ACC = model.ALL = 0
train_dataset = NqDataset(args, "test.json", is_training=True)
train_features = train_dataset.features
#logging.info("Data Load Done!")
train_sampler = RandomSampler(train_features)
train_dataloader = DataLoader(train_features, sampler=train_sampler, batch_size=args.train_batch_size,
collate_fn=batcher(device, is_training=True), num_workers=0)
train_features = train_dataset.features
logging.info("Data ready {} ".format(len(train_features)))
tgobal_step = 0
ttr_loss = 0
optimizer.zero_grad()
logging.info("***** Running evalating *****")
with torch.no_grad():
for step, batch in enumerate(train_dataloader):
tgobal_step+=1
loss = model(batch.input_ids, batch.input_mask, batch.segment_ids, batch.st_mask,
(batch.edges_src, batch.edges_tgt, batch.edges_type, batch.edges_pos),batch.label)
ttr_loss+=loss.item()
logging.info("ACC:{}% LOSS:{}".format(model.ACC/model.ALL*100,ttr_loss/tgobal_step))
model.zero_grad()
optimizer.zero_grad()
if model.ACC/model.ALL*100>last_acc:
logging.info("Save Model")
last_acc = model.ACC/model.ALL*100
model_to_save = model.module if hasattr(model, 'module') else model # Only save the model it-self
# If we save using the predefined names, we can load using `from_pretrained`
output_model_file = os.path.join(args.output_dir, WEIGHTS_NAME)
torch.save(model_to_save.state_dict(), output_model_file)
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument(
"--data_dir",
default=None,
type=str,
required=True,
help=
"The input data dir. Should contain the .tsv files (or other data files) for the task."
)
parser.add_argument(
"--bert_model",
default=None,
type=str,
required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-large-cased, bert-base-multilingual-uncased, "
"bert-base-multilingual-cased, bert-base-chinese.")
parser.add_argument("--task_name",
default=None,
type=str,
required=True,
help="The name of the task to train.")
parser.add_argument(
"--output_dir",
default=None,
type=str,
required=True,
help=
"The output directory where the model predictions and checkpoints will be written."
)
## Other parameters
parser.add_argument(
"--cache_dir",
default="",
type=str,
help=
"Where do you want to store the pre-trained models downloaded from s3")
parser.add_argument(
"--max_seq_length",
default=128,
type=int,
help=
"The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--do_train",
action='store_true',
help="Whether to run training.")
parser.add_argument("--do_eval",
action='store_true',
help="Whether to run eval on the dev set.")
parser.add_argument(
"--do_lower_case",
action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument("--eval_batch_size",
default=32,
type=int,
help="Total batch size for eval.")
parser.add_argument("--learning_rate",
default=5e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs",
default=3.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument(
"--warmup_proportion",
default=0.1,
type=float,
help=
"Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument(
'--gradient_accumulation_steps',
type=int,
default=1,
help=
"Number of updates steps to accumulate before performing a backward/update pass."
)
parser.add_argument(
'--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--loss_scale',
type=float,
default=0,
help=
"Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument('--server_ip',
type=str,
default='',
help="Can be used for distant debugging.")
parser.add_argument('--server_port',
type=str,
default='',
help="Can be used for distant debugging.")
args = parser.parse_args()
# if args.server_ip and args.server_port:
# # Distant debugging - see https://code.visualstudio.com/docs/python/debugging#_attach-to-a-local-script
# import ptvsd
# print("Waiting for debugger attach")
# ptvsd.enable_attach(address=(args.server_ip, args.server_port), redirect_output=True)
# ptvsd.wait_for_attach()
processors = {
"cola": ColaProcessor,
"mnli": MnliProcessor,
"mnli-mm": MnliMismatchedProcessor,
"mrpc": MrpcProcessor,
"sst-2": Sst2Processor,
"sts-b": StsbProcessor,
"qqp": QqpProcessor,
"qnli": QnliProcessor,
"rte": RteProcessor,
"wnli": WnliProcessor,
}
output_modes = {
"cola": "classification",
"mnli": "classification",
"mrpc": "classification",
"sst-2": "classification",
"sts-b": "regression",
"qqp": "classification",
"qnli": "classification",
"rte": "classification",
"wnli": "classification",
}
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logger.info(
"device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".
format(device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train and not args.do_eval:
raise ValueError(
"At least one of `do_train` or `do_eval` must be True.")
task_name = args.task_name.lower()
if task_name not in processors:
raise ValueError("Task not found: %s" % (task_name))
processor = processors[task_name]()
output_mode = output_modes[task_name]
label_list = processor.get_labels() #[0,1]
num_labels = len(label_list)
train_examples = None
num_train_optimization_steps = None
if args.do_train:
# train_examples = processor.get_train_examples_wenpeng('/home/wyin3/Datasets/glue_data/RTE/train.tsv')
train_examples, _, _ = processor.get_examples_SF_wenpeng(
'/home/wyin3/Datasets/MNLI-SNLI-SciTail-RTE-SICK/BBN.SF.train.txt')
num_train_optimization_steps = int(
len(train_examples) / args.train_batch_size /
args.gradient_accumulation_steps) * args.num_train_epochs
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size(
)
# Prepare model
cache_dir = args.cache_dir if args.cache_dir else os.path.join(
str(PYTORCH_PRETRAINED_BERT_CACHE), 'distributed_{}'.format(
args.local_rank))
# model = BertForSequenceClassification.from_pretrained(args.bert_model,
# cache_dir=cache_dir,
# num_labels=num_labels)
# tokenizer = BertTokenizer.from_pretrained(args.bert_model, do_lower_case=args.do_lower_case)
pretrain_model_dir = '/home/wyin3/Datasets/fine_tune_Bert_stored/FineTuneOnSciTail' #FineTuneOnMNLI'
model = BertForSequenceClassification.from_pretrained(
pretrain_model_dir, num_labels=num_labels)
tokenizer = BertTokenizer.from_pretrained(pretrain_model_dir,
do_lower_case=args.do_lower_case)
if args.fp16:
model.half()
model.to(device)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer,
static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=num_train_optimization_steps)
# optimizer = optimizer_wenpeng.Adagrad(optimizer_grouped_parameters, lr=1e-3)
global_step = 0
nb_tr_steps = 0
tr_loss = 0
max_test_acc = 0.0
if args.do_train:
train_features = convert_examples_to_features(train_examples,
label_list,
args.max_seq_length,
tokenizer, output_mode)
eval_examples, eval_label_list, eval_coord_list = processor.get_examples_SF_wenpeng(
'/home/wyin3/Datasets/MNLI-SNLI-SciTail-RTE-SICK/BBN.SF.test.txt')
eval_features = convert_examples_to_features(eval_examples, label_list,
args.max_seq_length,
tokenizer, output_mode)
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
all_input_ids = torch.tensor([f.input_ids for f in train_features],
dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in train_features],
dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in train_features],
dtype=torch.long)
if output_mode == "classification":
all_label_ids = torch.tensor([f.label_id for f in train_features],
dtype=torch.long)
elif output_mode == "regression":
all_label_ids = torch.tensor([f.label_id for f in train_features],
dtype=torch.float)
# print('train all_label_ids:', all_label_ids)
# exit(0)
train_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
if args.local_rank == -1:
train_sampler = RandomSampler(train_data)
else:
train_sampler = DistributedSampler(train_data)
train_dataloader = DataLoader(train_data,
sampler=train_sampler,
batch_size=args.train_batch_size)
iter_co = 0
for _ in trange(int(args.num_train_epochs), desc="Epoch"):
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
for step, batch in enumerate(
tqdm(train_dataloader, desc="Iteration")):
model.train()
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
# print('train label_ids:', label_ids.view(-1))
# define a new function to compute loss values for both output_modes
logits = model(input_ids, segment_ids, input_mask, labels=None)
if output_mode == "classification":
loss_fct = CrossEntropyLoss()
loss = loss_fct(logits.view(-1, num_labels),
label_ids.view(-1))
elif output_mode == "regression":
loss_fct = MSELoss()
loss = loss_fct(logits.view(-1), label_ids.view(-1))
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if (step + 1) % args.gradient_accumulation_steps == 0:
if args.fp16:
# modify learning rate with special warm up BERT uses
# if args.fp16 is False, BertAdam is used that handles this automatically
lr_this_step = args.learning_rate * warmup_linear(
global_step / num_train_optimization_steps,
args.warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
iter_co += 1
if iter_co % 100 == 0:
'''
start evaluate on test set after this epoch
'''
model.eval()
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
all_input_ids = torch.tensor(
[f.input_ids for f in eval_features], dtype=torch.long)
all_input_mask = torch.tensor(
[f.input_mask for f in eval_features],
dtype=torch.long)
all_segment_ids = torch.tensor(
[f.segment_ids for f in eval_features],
dtype=torch.long)
if output_mode == "classification":
all_label_ids = torch.tensor(
[f.label_id for f in eval_features],
dtype=torch.long)
elif output_mode == "regression":
all_label_ids = torch.tensor(
[f.label_id for f in eval_features],
dtype=torch.float)
eval_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(
eval_data,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
eval_loss = 0
nb_eval_steps = 0
preds = []
for input_ids, input_mask, segment_ids, label_ids in tqdm(
eval_dataloader, desc="Evaluating"):
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
logits = model(input_ids,
segment_ids,
input_mask,
labels=None)
# create eval loss and other metric required by the task
if output_mode == "classification":
loss_fct = CrossEntropyLoss()
tmp_eval_loss = loss_fct(
logits.view(-1, num_labels),
label_ids.view(-1))
elif output_mode == "regression":
loss_fct = MSELoss()
tmp_eval_loss = loss_fct(logits.view(-1),
label_ids.view(-1))
eval_loss += tmp_eval_loss.mean().item()
nb_eval_steps += 1
if len(preds) == 0:
preds.append(logits.detach().cpu().numpy())
else:
preds[0] = np.append(preds[0],
logits.detach().cpu().numpy(),
axis=0)
eval_loss = eval_loss / nb_eval_steps
preds = preds[0]
if output_mode == "classification":
preds = np.argmax(preds, axis=1)
elif output_mode == "regression":
preds = np.squeeze(preds)
mean_f1, weighted_f1 = evaluate_SF(preds, eval_label_list,
eval_coord_list)
# result = compute_metrics('F1', preds, all_label_ids.numpy())
loss = tr_loss / nb_tr_steps if args.do_train else None
test_acc = mean_f1 #result.get("f1")
if test_acc > max_test_acc:
max_test_acc = test_acc
print('\ntest F1 & weighted-F1:', test_acc, weighted_f1,
' max_test_f1:', max_test_acc, '\n')
def create_optimizer(net,
name,
learning_rate,
weight_decay,
momentum=0,
apex_opt_level=None,
optimizer_state=None,
device=None,
no_bn_wd=False,
local_rank=None,
sync_bn=False):
net.float()
if local_rank is not None:
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
print('torch.distributed.init_process_group')
torch.distributed.init_process_group(backend='nccl')
device = torch.device('cuda', local_rank)
else:
device = choose_device(device)
if sync_bn:
import apex
print("using synced BN")
net = apex.parallel.convert_syncbn_model(net)
print('use', device)
net = net.to(device)
# optimizer
parameters = [p for p in net.parameters() if p.requires_grad]
if no_bn_wd:
parameters = bnwd_optim_params(net, parameters)
if name == 'sgd':
optimizer = torch.optim.SGD(parameters,
lr=learning_rate,
momentum=momentum,
weight_decay=weight_decay)
elif name == 'adam':
optimizer = torch.optim.Adam(parameters,
lr=learning_rate,
weight_decay=weight_decay)
elif name == 'adamw':
from .optim.adam import Adam
optimizer = Adam(parameters,
lr=learning_rate,
weight_decay=weight_decay)
elif name == 'fused_adam':
from apex.optimizers import FusedAdam
optimizer = FusedAdam(parameters,
lr=learning_rate,
weight_decay=weight_decay)
elif name == 'adabound':
from trainer.optim.adabound import AdaBound
optimizer = AdaBound(parameters,
lr=learning_rate,
weight_decay=weight_decay)
elif name == 'adaboundw':
from trainer.optim.adabound import AdaBoundW
optimizer = AdaBoundW(parameters,
lr=learning_rate,
weight_decay=weight_decay)
else:
raise NotImplementedError(name)
if apex_opt_level:
from apex import amp
net, optimizer = amp.initialize(net,
optimizer,
opt_level=apex_opt_level)
def backward(loss):
with amp.scale_loss(loss, optimizer) as scaled_loss:
scaled_loss.backward()
optimizer.backward = backward
else:
optimizer.backward = lambda loss: loss.backward()
if optimizer_state:
# if use_fp16 and 'optimizer_state_dict' not in optimizer_state:
# # resume FP16_Optimizer.optimizer only
# optimizer.optimizer.load_state_dict(optimizer_state)
# elif not use_fp16 and 'optimizer_state_dict' in optimizer_state:
# # resume optimizer from FP16_Optimizer.optimizer
# optimizer.load_state_dict(optimizer_state['optimizer_state_dict'])
# else:
optimizer.load_state_dict(optimizer_state)
if device.type == 'cuda':
torch.backends.cudnn.benchmark = True
if local_rank is not None:
if apex_opt_level:
import apex
net = apex.parallel.DistributedDataParallel(
net, delay_allreduce=True)
else:
net = torch.nn.parallel.DistributedDataParallel(
net, device_ids=[local_rank], output_device=local_rank)
else:
net = torch.nn.DataParallel(net)
return net, optimizer
def main():
parser = argparse.ArgumentParser()
# Required parameters
parser.add_argument(
"--data_dir",
default=None,
type=str,
required=True,
help=
"The input data dir. Should contain the .tsv files (or other data files) for the task."
)
parser.add_argument(
"--bert_model",
default=None,
type=str,
required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-large-cased, bert-base-multilingual-uncased, "
"bert-base-multilingual-cased, bert-base-chinese.")
parser.add_argument("--task_name",
default=None,
type=str,
required=True,
help="The name of the task to train.")
parser.add_argument(
"--output_dir",
default=None,
type=str,
required=True,
help=
"The output directory where the model predictions and checkpoints will be written."
)
# Other parameters
parser.add_argument(
"--cache_dir",
default="",
type=str,
help=
"Where do you want to store the pre-trained models downloaded from s3")
parser.add_argument(
"--max_seq_length",
default=128,
type=int,
help=
"The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--do_train",
action='store_true',
help="Whether to run training.")
parser.add_argument("--do_eval",
action='store_true',
help="Whether to run eval on the dev set.")
parser.add_argument(
"--do_lower_case",
action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument("--eval_batch_size",
default=8,
type=int,
help="Total batch size for eval.")
parser.add_argument("--learning_rate",
default=5e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs",
default=3.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument(
"--warmup_proportion",
default=0.1,
type=float,
help=
"Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument(
'--gradient_accumulation_steps',
type=int,
default=1,
help=
"Number of updates steps to accumulate before performing a backward/update pass."
)
parser.add_argument(
'--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--deepscale',
default=False,
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--loss_scale',
type=float,
default=0,
help=
"Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument('--server_ip',
type=str,
default='',
help="Can be used for distant debugging.")
parser.add_argument('--server_port',
type=str,
default='',
help="Can be used for distant debugging.")
parser.add_argument("--model_file",
type=str,
default="0",
help="Path to the Pretrained BERT Encoder File.")
parser.add_argument('--random',
default=False,
action='store_true',
help="Whether to fientune for random initialization")
parser.add_argument('--focal',
default=False,
action='store_true',
help="Whether to use Focal Loss for finetuning.")
parser.add_argument('--gamma',
type=float,
default=0.5,
help="Gamma parameter to be used in focal loss.")
parser.add_argument('--deepspeed_sparse_attention',
default=False,
action='store_true',
help='Use DeepSpeed sparse self attention.')
parser.add_argument('--deepspeed_transformer_kernel',
default=False,
action='store_true',
help='Use DeepSpeed transformer kernel to accelerate.')
parser.add_argument(
'--progressive_layer_drop',
default=False,
action='store_true',
help="Whether to enable progressive layer dropping or not")
args = parser.parse_args()
if args.server_ip and args.server_port:
# Distant debugging - see https://code.visualstudio.com/docs/python/debugging#_attach-to-a-local-script
import ptvsd
print("Waiting for debugger attach")
ptvsd.enable_attach(address=(args.server_ip, args.server_port),
redirect_output=True)
ptvsd.wait_for_attach()
processors = {
"cola": ColaProcessor,
"mnli": MnliProcessor,
"mnli-mm": MnliMismatchedProcessor,
"mrpc": MrpcProcessor,
"sst-2": Sst2Processor,
"sts-b": StsbProcessor,
"qqp": QqpProcessor,
"qnli": QnliProcessor,
"rte": RteProcessor,
"wnli": WnliProcessor,
}
output_modes = {
"cola": "classification",
"mnli": "classification",
"mrpc": "classification",
"sst-2": "classification",
"sts-b": "regression",
"qqp": "classification",
"qnli": "classification",
"rte": "classification",
"wnli": "classification",
}
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logger.info(
"device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".
format(device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
args.seed = random.randint(1, 1000)
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train and not args.do_eval:
raise ValueError(
"At least one of `do_train` or `do_eval` must be True.")
if (torch.distributed.get_rank() == 0):
# if os.path.exists(args.output_dir) and os.listdir(args.output_dir) and args.do_train:
# raise ValueError(
# "Output directory ({}) already exists and is not empty.".format(args.output_dir))
if not os.path.exists(args.output_dir):
os.makedirs(args.output_dir)
torch.distributed.barrier()
task_name = args.task_name.lower()
if task_name not in processors:
raise ValueError("Task not found: %s" % (task_name))
processor = processors[task_name]()
output_mode = output_modes[task_name]
label_list = processor.get_labels()
num_labels = len(label_list)
tokenizer = BertTokenizer.from_pretrained(args.bert_model,
do_lower_case=args.do_lower_case)
train_examples = None
num_train_optimization_steps = None
if args.do_train:
train_examples = processor.get_train_examples(args.data_dir)
num_train_optimization_steps = int(
len(train_examples) / args.train_batch_size /
args.gradient_accumulation_steps) * args.num_train_epochs
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size(
)
# Prepare model
cache_dir = args.cache_dir if args.cache_dir else os.path.join(
str(PYTORCH_PRETRAINED_BERT_CACHE), 'distributed_{}'.format(
args.local_rank))
bert_base_model_config = {
"vocab_size_or_config_json_file": 119547,
"hidden_size": 768,
"num_hidden_layers": 12,
"num_attention_heads": 12,
"intermediate_size": 3072,
"hidden_act": "gelu",
"hidden_dropout_prob": 0.1,
"attention_probs_dropout_prob": 0.1,
"max_position_embeddings": 512,
"type_vocab_size": 2,
"initializer_range": 0.02
}
if args.progressive_layer_drop:
print("BertBaseConfigPreLnLayerDrop")
from nvidia.modelingpreln_layerdrop import BertForSequenceClassification, BertConfig
else:
from nvidia.modelingpreln import BertForSequenceClassification, BertConfig
bert_config = BertConfig(**bert_base_model_config)
bert_config.vocab_size = len(tokenizer.vocab)
# Padding for divisibility by 8
if bert_config.vocab_size % 8 != 0:
bert_config.vocab_size += 8 - (bert_config.vocab_size % 8)
model = BertForSequenceClassification(args,
bert_config,
num_labels=num_labels)
if args.model_file is not "0":
logger.info(f"Loading Pretrained Bert Encoder from: {args.model_file}")
# bert_state_dict = torch.load(args.model_file)
# model.bert.load_state_dict(bert_state_dict)
checkpoint_state_dict = torch.load(args.model_file,
map_location=torch.device("cpu"))
if 'module' in checkpoint_state_dict:
logger.info('Loading DeepSpeed v2.0 style checkpoint')
model.load_state_dict(checkpoint_state_dict['module'],
strict=False)
elif 'model_state_dict' in checkpoint_state_dict:
model.load_state_dict(checkpoint_state_dict['model_state_dict'],
strict=False)
else:
raise ValueError("Unable to find model state in checkpoint")
logger.info(f"Pretrained Bert Encoder Loaded from: {args.model_file}")
if args.random:
logger.info("USING RANDOM INITIALISATION FOR FINETUNING")
model.apply(model.init_bert_weights)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
if args.deepscale:
print("Enabling DeepScale")
from deepscale.distributed_apex import DistributedDataParallel as DDP
else:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
if args.deepspeed_transformer_kernel:
no_decay = no_decay + [
'attn_nw', 'attn_nb', 'norm_w', 'norm_b', 'attn_qkvb', 'attn_ob',
'inter_b', 'output_b'
]
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer,
static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=num_train_optimization_steps)
global_step = 0
nb_tr_steps = 0
tr_loss = 0
if args.do_train:
train_features = convert_examples_to_features(train_examples,
label_list,
args.max_seq_length,
tokenizer, output_mode)
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
all_input_ids = torch.tensor([f.input_ids for f in train_features],
dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in train_features],
dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in train_features],
dtype=torch.long)
if output_mode == "classification":
all_label_ids = torch.tensor([f.label_id for f in train_features],
dtype=torch.long)
elif output_mode == "regression":
if args.fp16:
all_label_ids = torch.tensor(
[f.label_id for f in train_features], dtype=torch.half)
else:
all_label_ids = torch.tensor(
[f.label_id for f in train_features], dtype=torch.float)
train_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
if args.local_rank == -1:
train_sampler = RandomSampler(train_data)
else:
train_sampler = DistributedSampler(train_data)
train_dataloader = DataLoader(train_data,
sampler=train_sampler,
batch_size=args.train_batch_size)
model.train()
for _ in trange(int(args.num_train_epochs), desc="Epoch"):
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
for step, batch in enumerate(
tqdm(train_dataloader, desc="Iteration")):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
# define a new function to compute loss values for both output_modes
logits = model(input_ids, segment_ids, input_mask, labels=None)
if output_mode == "classification":
if args.focal:
loss_fct = FocalLoss(class_num=num_labels,
gamma=args.gamma)
else:
loss_fct = CrossEntropyLoss()
loss = loss_fct(logits.view(-1, num_labels),
label_ids.view(-1))
elif output_mode == "regression":
loss_fct = MSELoss()
loss = loss_fct(logits.view(-1), label_ids.view(-1))
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.deepscale and args.local_rank != -1:
model.disable_need_reduction()
if (step + 1) % args.gradient_accumulation_steps == 0:
model.enable_need_reduction()
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if (step + 1) % args.gradient_accumulation_steps == 0:
if args.fp16:
# modify learning rate with special warm up BERT uses
# if args.fp16 is False, BertAdam is used that handles this automatically
lr_this_step = args.learning_rate * \
warmup_linear(
global_step/num_train_optimization_steps, args.warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
if args.do_eval and (args.local_rank == -1
or torch.distributed.get_rank() == 0):
eval_examples = processor.get_dev_examples(args.data_dir)
eval_features = convert_examples_to_features(eval_examples, label_list,
args.max_seq_length,
tokenizer, output_mode)
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
all_input_ids = torch.tensor([f.input_ids for f in eval_features],
dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in eval_features],
dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in eval_features],
dtype=torch.long)
if output_mode == "classification":
all_label_ids = torch.tensor([f.label_id for f in eval_features],
dtype=torch.long)
elif output_mode == "regression":
all_label_ids = torch.tensor([f.label_id for f in eval_features],
dtype=torch.float)
eval_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
model.eval()
eval_loss = 0
nb_eval_steps = 0
preds = []
for input_ids, input_mask, segment_ids, label_ids in tqdm(
eval_dataloader, desc="Evaluating"):
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
logits = model(input_ids, segment_ids, input_mask, labels=None)
# create eval loss and other metric required by the task
if output_mode == "classification":
if args.focal:
loss_fct = FocalLoss(class_num=num_labels,
gamma=args.gamma)
else:
loss_fct = CrossEntropyLoss()
tmp_eval_loss = loss_fct(logits.view(-1, num_labels),
label_ids.view(-1))
elif output_mode == "regression":
loss_fct = MSELoss()
print(logits.type())
print(label_ids.type())
if task_name == "sts-b":
tmp_eval_loss = loss_fct(logits.float().view(-1),
label_ids.view(-1))
else:
tmp_eval_loss = loss_fct(logits.view(-1),
label_ids.view(-1))
eval_loss += tmp_eval_loss.mean().item()
nb_eval_steps += 1
if len(preds) == 0:
preds.append(logits.detach().cpu().numpy())
else:
preds[0] = np.append(preds[0],
logits.detach().cpu().numpy(),
axis=0)
eval_loss = eval_loss / nb_eval_steps
preds = preds[0]
if output_mode == "classification":
preds = np.argmax(preds, axis=1)
elif output_mode == "regression":
preds = np.squeeze(preds)
result = compute_metrics(task_name, preds, all_label_ids.numpy())
loss = tr_loss / nb_tr_steps if args.do_train else None
result['eval_loss'] = eval_loss
result['global_step'] = global_step
result['loss'] = loss
output_eval_file = os.path.join(args.output_dir, "eval_results.txt")
with open(output_eval_file, "w") as writer:
logger.info("***** Eval results *****")
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
# hack for MNLI-MM
if task_name == "mnli":
task_name = "mnli-mm"
processor = processors[task_name]()
if os.path.exists(args.output_dir +
'-MM') and os.listdir(args.output_dir +
'-MM') and args.do_train:
raise ValueError(
"Output directory ({}{}) already exists and is not empty.".
format(args.output_dir, '-MM'))
if not os.path.exists(args.output_dir + '-MM'):
os.makedirs(args.output_dir + '-MM')
eval_examples = processor.get_dev_examples(args.data_dir)
eval_features = convert_examples_to_features(
eval_examples, label_list, args.max_seq_length, tokenizer,
output_mode)
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
all_input_ids = torch.tensor([f.input_ids for f in eval_features],
dtype=torch.long)
all_input_mask = torch.tensor(
[f.input_mask for f in eval_features], dtype=torch.long)
all_segment_ids = torch.tensor(
[f.segment_ids for f in eval_features], dtype=torch.long)
all_label_ids = torch.tensor([f.label_id for f in eval_features],
dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
model.eval()
eval_loss = 0
nb_eval_steps = 0
preds = []
for input_ids, input_mask, segment_ids, label_ids in tqdm(
eval_dataloader, desc="Evaluating"):
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
logits = model(input_ids,
segment_ids,
input_mask,
labels=None)
if args.focal:
loss_fct = FocalLoss(class_num=num_labels,
gamma=args.gamma)
else:
loss_fct = CrossEntropyLoss()
tmp_eval_loss = loss_fct(logits.view(-1, num_labels),
label_ids.view(-1))
eval_loss += tmp_eval_loss.mean().item()
nb_eval_steps += 1
if len(preds) == 0:
preds.append(logits.detach().cpu().numpy())
else:
preds[0] = np.append(preds[0],
logits.detach().cpu().numpy(),
axis=0)
eval_loss = eval_loss / nb_eval_steps
preds = preds[0]
preds = np.argmax(preds, axis=1)
result = compute_metrics(task_name, preds, all_label_ids.numpy())
loss = tr_loss / nb_tr_steps if args.do_train else None
result['eval_loss'] = eval_loss
result['global_step'] = global_step
result['loss'] = loss
output_eval_file = os.path.join(args.output_dir + '-MM',
"eval_results.txt")
with open(output_eval_file, "w") as writer:
logger.info("***** Eval results *****")
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
def main():
opt = parse_args()
opt.sever_name = gethostname()
# --- CUDA setting ---
os.environ["CUDA_VISIBLE_DEVICES"] = opt.gpu_ids
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
# --- Random Seed setting ---
if opt.random_seed is None:
opt.random_seed = random.randint(1, 10000)
random.seed(opt.random_seed)
np.random.seed(opt.random_seed)
torch.manual_seed(opt.random_seed)
if torch.cuda.is_available():
torch.cuda.manual_seed_all(opt.random_seed)
cudnn.deterministic = True
cudnn.benchmark = opt.cudnn_benchmark
# --- PATH setting ---
save_result_dir = Path(__file__).parent / "results" / opt.experiment_name
opt.save_model_dir = str(save_result_dir / "trained_models")
opt.save_log_path = str(save_result_dir / "train.log")
mkdirs(opt.save_model_dir)
# --- Prepare DataLoader ---
train_loader, valid_loader = get_train_val_loader(opt)
opt.src_vocab_size = train_loader.dataset.src_vocab_size
opt.tgt_vocab_size = train_loader.dataset.tgt_vocab_size
# --- Prepare Model ---
model = MultimodalTransformer(
src_vocab_size=opt.src_vocab_size,
tgt_vocab_size=opt.tgt_vocab_size,
max_position_num=opt.max_position_num,
d_model=opt.d_model,
head_num=opt.head_num,
d_k=opt.d_k,
d_v=opt.d_v,
d_inner=opt.d_inner,
layer_num=opt.layer_num,
dropout=opt.dropout,
cnn_fine_tuning=opt.cnn_fine_tuning,
shared_embedding=opt.shared_embedding,
share_dec_input_output_embed=opt.share_dec_input_output_embed,
init_weight=opt.init_weight,
fused_layer_norm=opt.use_fused,
).to(device)
# --- Prepare optimizer and scaler ---
if opt.use_fused:
from apex.optimizers import FusedAdam as Adam
else:
from torch.optim import Adam
optimizer = Adam(filter(lambda x: x.requires_grad, model.parameters()),
betas=(0.9, 0.98),
eps=1e-09,
weight_decay=opt.weight_decay)
scaler = GradScaler(init_scale=65536.0, enabled=opt.use_amp)
# --- Restart setting ---
start_cnt = 1
steps_cnt = 0
if opt.adapt_prop_MNMT is not None:
ex_name, epoch_cnt = opt.adapt_prop_MNMT.split(',')
saved_path = f"{pardir}/results/{ex_name}/trained_models/epoch_{epoch_cnt}.pth"
saved_dict = torch.load(saved_path,
map_location=lambda storage, loc: storage)
init_dir, init_epoch = saved_dict["settings"].MNMT.split(',')
init_path = f"{pardir}/MNMT/results/{init_dir}/trained_models/epoch_{init_epoch}.pth"
init_data = torch.load(init_path,
map_location=lambda storage, loc: storage)
check_arguments(init_data["settings"], opt)
model.load_state_dict(saved_dict["models"]["MNMT"])
print(f"[Info]Loading complete ({saved_path})")
elif opt.adapt_init_MNMT is not None:
ex_name, epoch_cnt = opt.adapt_init_MNMT.split(',')
saved_path = f"{Path(__file__).parent}/results/{ex_name}/trained_models/epoch_{epoch_cnt}.pth"
saved_dict = torch.load(saved_path,
map_location=lambda storage, loc: storage)
check_arguments(saved_dict["settings"], opt)
model.load_state_dict(saved_dict["model"])
print(f"[Info]Loading complete ({saved_path})")
if opt.restart is not None:
start_cnt = opt.restart + 1
if opt.restart < 500:
model_name = f"epoch_{opt.restart}.pth"
else:
model_name = f"step_{opt.restart}.pth"
saved_path = f"{opt.save_model_dir}/{model_name}"
saved_dict = torch.load(saved_path,
map_location=lambda storage, loc: storage)
check_arguments(saved_dict["settings"], opt)
model.load_state_dict(saved_dict["model"])
optimizer.load_state_dict(saved_dict["optimizer"])
scaler.load_state_dict(saved_dict["scaler"])
steps_cnt = saved_dict["steps_cnt"]
print(f"[Info]Loading complete ({saved_path})")
scheduler = Scheduler(
optimizer=optimizer,
init_lr=0.,
end_lr=opt.end_lr,
warmup_steps=opt.warmup_steps,
current_steps=steps_cnt,
)
# --- DataParallel setting ---
gpus = [i for i in range(len(opt.gpu_ids.split(',')))]
if len(gpus) > 1:
model = nn.DataParallel(model, device_ids=gpus)
# --- Prepare trainer and validator ---
if valid_loader is not None:
validator = ScoreCalculator(
model=model,
data_loader=valid_loader,
references=valid_loader.dataset.tgt_insts,
bpe=opt.bpe,
cp_avg_num=opt.check_point_average,
)
else:
validator = None
trainer = MNMTTrainer(
model=model,
train_loader=train_loader,
optimizer=optimizer,
scaler=scaler,
scheduler=scheduler,
opt=opt,
validator=validator,
)
# -- Train --
if opt.max_epoch is not None:
trainer.train_by_epoch(start_cnt)
else:
trainer.train_by_step(start_cnt)
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument("--data_dir",
default=None,
type=str,
required=True,
help="The input data dir. Should contain the .tsv files (or other data files) for the task.")
parser.add_argument("--bert_model", default=None, type=str, required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-large-cased, bert-base-multilingual-uncased, "
"bert-base-multilingual-cased, bert-base-chinese.")
parser.add_argument("--task_name",
default=None,
type=str,
required=True,
help="The name of the task to train.")
parser.add_argument("--output_dir",
default=None,
type=str,
required=True,
help="The output directory where the model predictions and checkpoints will be written.")
## Other parameters
parser.add_argument("--max_seq_length",
default=128,
type=int,
help="The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--do_train",
action='store_true',
help="Whether to run training.")
parser.add_argument("--do_eval",
action='store_true',
help="Whether to run eval on the dev set.")
parser.add_argument("--do_lower_case",
action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--train_batch_size",
default=64,
type=int,
help="Total batch size for training.")
parser.add_argument("--eval_batch_size",
default=64,
type=int,
help="Total batch size for eval.")
parser.add_argument("--learning_rate",
default=1e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs",
default=8.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument("--warmup_proportion",
default=0.1,
type=float,
help="Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument('--gradient_accumulation_steps',
type=int,
default=1,
help="Number of updates steps to accumulate before performing a backward/update pass.")
parser.add_argument('--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument('--loss_scale',
type=float, default=0,
help="Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument('--train_limit',
type=int,
default=10000000,
help="Train Samples Limit")
args = parser.parse_args()
processors = {
"obqa": OBQAProcessor,
"cola": ColaProcessor,
"mnli": MnliProcessor,
"mrpc": MrpcProcessor,
"snli": SnliProcessor,
"qnli": QnliProcessor,
"bow" : BoWProcessor
}
num_labels_task = {
"obqa": 2,
"cola": 2,
"mnli": 3,
"mrpc": 2,
"snli": 3,
"qnli": 2,
"bow" : 2
}
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available() and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logger.info("device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".format(
device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError("Invalid gradient_accumulation_steps parameter: {}, should be >= 1".format(
args.gradient_accumulation_steps))
args.train_batch_size = int(args.train_batch_size / args.gradient_accumulation_steps)
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train and not args.do_eval:
raise ValueError("At least one of `do_train` or `do_eval` must be True.")
if os.path.exists(args.output_dir) and os.listdir(args.output_dir) and args.do_train:
raise ValueError("Output directory ({}) already exists and is not empty.".format(args.output_dir))
os.makedirs(args.output_dir, exist_ok=True)
task_name = args.task_name.lower()
if task_name not in processors:
raise ValueError("Task not found: %s" % (task_name))
processor = processors[task_name]()
num_labels = num_labels_task[task_name]
label_list = processor.get_labels()
tokenizer = BertTokenizer.from_pretrained(args.bert_model, do_lower_case=args.do_lower_case)
train_examples = None
num_train_steps = None
if args.do_train:
train_examples = processor.get_train_examples(args.data_dir,args.train_limit)
num_train_steps = int(
len(train_examples) / args.train_batch_size / args.gradient_accumulation_steps * args.num_train_epochs)
test_examples = processor.get_test_examples(args.data_dir)
dev_examples = processor.get_dev_examples(args.data_dir)
# Prepare model
BertForCNN3
# model = BertForSequenceClassification.from_pretrained(args.bert_model,
# cache_dir=PYTORCH_PRETRAINED_BERT_CACHE / 'distributed_{}'.format(args.local_rank),
# num_labels = num_labels)
# model = BertForCNN.from_pretrained(args.bert_model,
# cache_dir=PYTORCH_PRETRAINED_BERT_CACHE / 'distributed_{}'.format(args.local_rank),
# num_labels = num_labels)
# model = BertForCNN3.from_pretrained(args.bert_model,
# cache_dir=PYTORCH_PRETRAINED_BERT_CACHE / 'distributed_{}'.format(args.local_rank),
# num_labels = num_labels)
model = BertForCNN4.from_pretrained(args.bert_model,
cache_dir=PYTORCH_PRETRAINED_BERT_CACHE / 'distributed_{}'.format(args.local_rank),
num_labels = num_labels)
# BertForCNN
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError("Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)], 'weight_decay': 0.01},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
t_total = num_train_steps
if args.local_rank != -1:
t_total = t_total // torch.distributed.get_world_size()
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError("Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer, static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=t_total)
global_step = 0
nb_tr_steps = 0
tr_loss = 0
result = {}
if args.do_train:
train_features = convert_examples_to_features(
train_examples, label_list, args.max_seq_length, tokenizer)
test_features = convert_examples_to_features(
test_examples, label_list, args.max_seq_length, tokenizer)
dev_features = convert_examples_to_features(
dev_examples, label_list, args.max_seq_length, tokenizer)
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_steps)
train_dataloader = get_dataloader(train_features,args.train_batch_size)
test_dataloader = get_dataloader(test_features,args.train_batch_size)
dev_dataloader = get_dataloader(dev_features,args.train_batch_size)
ep = 0
output_model_file = "dummy"
loss_fct = CrossEntropyLoss()
max_acc = -1
for _ in trange(int(args.num_train_epochs), desc="Epoch"):
model.train()
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
ep += 1
tqi = tqdm(train_dataloader, desc="Iteration")
acc = 0
for step, batch in enumerate(tqi):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
logits = model(input_ids, segment_ids, input_mask)
loss = loss_fct(logits.view(-1, num_labels), label_ids.view(-1))
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
tmp_accuracy = accuracy(logits, label_ids)
acc += tmp_accuracy
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if (step + 1) % args.gradient_accumulation_steps == 0:
# modify learning rate with special warm up BERT uses
lr_this_step = args.learning_rate * warmup_linear(global_step/(t_total), args.warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
tqi.set_description("Loss:"+str(tr_loss/nb_tr_steps)+",Acc:"+str(acc/nb_tr_examples))
model_to_save = model.module if hasattr(model, 'module') else model # Only save the model it-self
output_model_file = os.path.join(args.output_dir, "pytorch_model.bin." + str(ep))
torch.save(model_to_save.state_dict(), output_model_file)
model.eval()
names = ["Val","Test"]
for index,eval_dataloader in enumerate([dev_dataloader,test_dataloader]):
print("Validating! "+ names[index])
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
tqe = tqdm(eval_dataloader, desc="Evaluating")
for input_ids, input_mask, segment_ids, label_ids in tqe:
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
tmp_eval_loss = model(input_ids, segment_ids, input_mask, label_ids)
logits = model(input_ids, segment_ids, input_mask)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
tmp_eval_accuracy = accuracy(logits, label_ids)
eval_loss += tmp_eval_loss.mean().item()
eval_accuracy += tmp_eval_accuracy
nb_eval_examples += input_ids.size(0)
nb_eval_steps += 1
tqe.set_description(names[index]+" Loss:"+str(eval_loss/nb_eval_steps)+",Acc:"+str(eval_accuracy/nb_eval_examples))
eval_loss = eval_loss / nb_eval_steps
eval_accuracy = eval_accuracy / nb_eval_examples
loss = tr_loss/nb_tr_steps if args.do_train else None
eps =str(ep)+"_"+names[index]
result['eval_loss_'+eps]= eval_loss
result['eval_accuracy_'+eps]= eval_accuracy
result['global_step_'+eps]= global_step
result['loss_'+eps]= loss
print(result)
if names[index] == "Val":
max_acc = max(max_acc,eval_accuracy)
if eval_accuracy == max_acc:
print("Storing Current Best Model")
model_to_save = model.module if hasattr(model, 'module') else model # Only save the model it-self
output_model_file = os.path.join(args.output_dir, "best_model.bin")
torch.save(model_to_save.state_dict(), output_model_file)
output_eval_file = os.path.join(args.output_dir, "eval_results.txt")
with open(output_eval_file, "w") as writer:
logger.info("***** Eval results *****")
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
} # any one of no_decay in p
]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learn_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer,
static_loss_scale=args.loss_scale)
warmup_linear = WarmupLinearSchedule(warmup=args.warmup_proportion,
t_total=total_train_steps)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learn_rate,
warmup=args.warmup_proportion,
t_total=total_train_steps)
########################################################################################################################
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument("--train_corpus",
default=None,
type=str,
required=True,
help="The input train corpus.")
parser.add_argument(
"--bert_model",
default=None,
type=str,
required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-base-multilingual, bert-base-chinese."
)
parser.add_argument(
"--output_dir",
default=None,
type=str,
required=True,
help="The output directory where the model checkpoints will be written."
)
## Other parameters
parser.add_argument(
"--max_seq_length",
default=128,
type=int,
help=
"The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--do_train",
action='store_true',
help="Whether to run training.")
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument("--learning_rate",
default=3e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--adam_epsilon",
default=1e-8,
type=float,
help="Epsilon for Adam optimizer.")
parser.add_argument("--num_train_epochs",
default=3.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument("--warmup_steps",
default=0,
type=int,
help="Linear warmup over warmup_steps.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument(
"--on_memory",
action='store_true',
help="Whether to load train samples into memory or use disk")
parser.add_argument(
"--do_lower_case",
action='store_true',
help=
"Whether to lower case the input text. True for uncased models, False for cased models."
)
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument(
'--gradient_accumulation_steps',
type=int,
default=1,
help=
"Number of updates steps to accumualte before performing a backward/update pass."
)
parser.add_argument(
'--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--loss_scale',
type=float,
default=0,
help=
"Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
args = parser.parse_args()
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logger.info(
"device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".
format(device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train:
raise ValueError(
"Training is currently the only implemented execution option. Please set `do_train`."
)
if os.path.exists(args.output_dir) and os.listdir(args.output_dir):
raise ValueError(
"Output directory ({}) already exists and is not empty.".format(
args.output_dir))
if not os.path.exists(args.output_dir) and (
args.local_rank == -1 or torch.distributed.get_rank() == 0):
os.makedirs(args.output_dir)
tokenizer = BertTokenizer.from_pretrained(args.bert_model,
do_lower_case=args.do_lower_case)
#train_examples = None
num_train_optimization_steps = None
if args.do_train:
print("Loading Train Dataset", args.train_corpus)
train_dataset = BERTDataset(args.train_corpus,
tokenizer,
seq_len=args.max_seq_length,
corpus_lines=None,
on_memory=args.on_memory)
num_train_optimization_steps = int(
len(train_dataset) / args.train_batch_size /
args.gradient_accumulation_steps) * args.num_train_epochs
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size(
)
# Prepare model
model = BertForPreTraining.from_pretrained(args.bert_model)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
if args.do_train:
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params': [
p for n, p in param_optimizer
if not any(nd in n for nd in no_decay)
],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer,
static_loss_scale=args.loss_scale)
else:
optimizer = AdamW(optimizer_grouped_parameters,
lr=args.learning_rate,
eps=args.adam_epsilon)
scheduler = get_linear_schedule_with_warmup(
optimizer,
num_warmup_steps=args.warmup_steps,
num_training_steps=num_train_optimization_steps)
global_step = 0
if args.do_train:
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_dataset))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
if args.local_rank == -1:
train_sampler = RandomSampler(train_dataset)
else:
#TODO: check if this works with current data generator from disk that relies on next(file)
# (it doesn't return item back by index)
train_sampler = DistributedSampler(train_dataset)
train_dataloader = DataLoader(train_dataset,
sampler=train_sampler,
batch_size=args.train_batch_size)
model.train()
for _ in trange(int(args.num_train_epochs), desc="Epoch"):
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
for step, batch in enumerate(
tqdm(train_dataloader, desc="Iteration")):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, lm_label_ids, is_next = batch
outputs = model(input_ids,
segment_ids,
input_mask,
labels=lm_label_ids,
next_sentence_label=is_next)
loss = outputs[0]
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if (step + 1) % args.gradient_accumulation_steps == 0:
optimizer.step()
scheduler.step() # Update learning rate schedule
optimizer.zero_grad()
global_step += 1
# Save a trained model
if args.do_train and (args.local_rank == -1
or torch.distributed.get_rank() == 0):
logger.info("** ** * Saving fine - tuned model ** ** * ")
model_to_save = model.module if hasattr(
model, 'module'
) else model # Take care of distributed/parallel training
model_to_save.save_pretrained(args.output_dir)
tokenizer.save_pretrained(args.output_dir)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)], 'weight_decay': 0.01},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError("Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer, static_loss_scale=args.loss_scale)
warmup_linear = WarmupLinearSchedule(warmup=args.warmup_proportion,
t_total=num_train_optimization_steps)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=num_train_optimization_steps)
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument("--data_dir",
default=None,
type=str,
required=True,
help="The input data dir. Should contain the .tsv files (or other data files) for the task.")
parser.add_argument("--bert_model", default=None, type=str, required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-large-cased, bert-base-multilingual-uncased, "
"bert-base-multilingual-cased, bert-base-chinese.")
parser.add_argument("--task_name",
default=None,
type=str,
required=True,
help="The name of the task to train.")
parser.add_argument("--output_dir",
default=None,
type=str,
required=True,
help="The output directory where the model predictions and checkpoints will be written.")
## Other parameters
parser.add_argument("--cache_dir",
default="",
type=str,
help="Where do you want to store the pre-trained models downloaded from s3")
parser.add_argument("--max_seq_length",
default=128,
type=int,
help="The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--max_pron_length",
default=5,
type=int,
help="The maximum total input sequence length after pronounciation tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--pron_emb_size",
default=16,
type=int,
help="The embedding size of pronounciation embedding.")
parser.add_argument("--do_train",
action='store_true',
help="Whether to run training.")
parser.add_argument("--do_eval",
action='store_true',
help="Whether to run eval on the dev set.")
parser.add_argument("--do_pron",
action='store_true',
help='Whether to use pronunciation as features.')
parser.add_argument("--do_lower_case",
action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--train_batch_size",
default=32,
type=int,
help="Total batch size for training.")
parser.add_argument("--eval_batch_size",
default=8,
type=int,
help="Total batch size for eval.")
parser.add_argument("--learning_rate",
default=5e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs",
default=3.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument("--warmup_proportion",
default=0.1,
type=float,
help="Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument('--gradient_accumulation_steps',
type=int,
default=1,
help="Number of updates steps to accumulate before performing a backward/update pass.")
parser.add_argument('--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument('--loss_scale',
type=float, default=0,
help="Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument('--server_ip', type=str, default='', help="Can be used for distant debugging.")
parser.add_argument('--server_port', type=str, default='', help="Can be used for distant debugging.")
args = parser.parse_args()
if args.server_ip and args.server_port:
# Distant debugging - see https://code.visualstudio.com/docs/python/debugging#_attach-to-a-local-script
import ptvsd
print("Waiting for debugger attach")
ptvsd.enable_attach(address=(args.server_ip, args.server_port), redirect_output=True)
ptvsd.wait_for_attach()
if "h**o" in args.data_dir:
mark = "h**o-"
elif "hete" in args.data_dir:
mark = "hete-"
score_file = "scores/" + mark + '/'
if not os.path.isdir(score_file): os.mkdir(score_file)
args.output_dir = score_file + args.output_dir
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available() and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logger.info("device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".format(
device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError("Invalid gradient_accumulation_steps parameter: {}, should be >= 1".format(
args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if not args.do_train and not args.do_eval:
raise ValueError("At least one of `do_train` or `do_eval` must be True.")
if os.path.exists(args.output_dir) and os.listdir(args.output_dir) and args.do_train:
raise ValueError("Output directory ({}) already exists and is not empty.".format(args.output_dir))
if not os.path.exists(args.output_dir):
os.makedirs(args.output_dir)
task_name = args.task_name.lower()
if task_name not in processors:
raise ValueError("Task not found: %s" % (task_name))
processor = processors[task_name]()
label_list = processor.get_labels()
num_labels = len(label_list)
tokenizer = BertTokenizer.from_pretrained(args.bert_model, do_lower_case=args.do_lower_case)
train_examples = None
num_train_optimization_steps = None
all_examples = processor.get_train_examples(args.data_dir)
all_examples = np.array(all_examples)
kf = KFold(n_splits=10)
kf.get_n_splits(all_examples)
cv_index = -1
for train_index, test_index in kf.split(all_examples):
cv_index += 1
train_examples = list(all_examples[train_index])
eval_examples = list(all_examples[test_index])
num_train_optimization_steps = int(
len(train_examples) / args.train_batch_size / args.gradient_accumulation_steps) * args.num_train_epochs
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size()
# Prepare model
cache_dir = args.cache_dir if args.cache_dir else os.path.join(str(PYTORCH_PRETRAINED_BERT_CACHE), 'distributed_{}'.format(args.local_rank))
model = BertForSequencePronsClassification_v3.from_pretrained(args.bert_model,
cache_dir=cache_dir,
num_labels=num_labels,
max_seq_length=args.max_seq_length,
max_prons_length=args.max_pron_length,
pron_emb_size=args.pron_emb_size,
do_pron=args.do_pron,
device=device)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError("Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model)
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)], 'weight_decay': 0.01},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError("Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer, static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=num_train_optimization_steps)
global_step = 0
nb_tr_steps = 0
tr_loss = 0
prons_map = {}
prons_map, prons_emb = embed_load('./data/pron.'+str(args.pron_emb_size)+'.vec')
train_features, prons_map = convert_examples_to_pron_SC_features(
train_examples, label_list, args.max_seq_length, args.max_pron_length, tokenizer, prons_map)
eval_features, prons_map = convert_examples_to_pron_SC_features(
eval_examples, label_list, args.max_seq_length, args.max_pron_length, tokenizer, prons_map)
print(prons_map)
prons_emb = embed_extend(prons_emb, len(prons_map))
prons_emb = torch.tensor(prons_emb, dtype=torch.float)
prons_embedding = torch.nn.Embedding.from_pretrained(prons_emb)
prons_embedding.weight.requires_grad=False
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
all_input_ids = torch.tensor([f.input_ids for f in train_features], dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in train_features], dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in train_features], dtype=torch.long)
all_label_ids = torch.tensor([f.label_id for f in train_features], dtype=torch.long)
all_prons_ids = torch.tensor([f.prons_id for f in train_features], dtype=torch.long)
all_prons_att_mask = torch.tensor([f.prons_att_mask for f in train_features], dtype=torch.long)
train_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label_ids, all_prons_ids, all_prons_att_mask)
if args.local_rank == -1:
train_sampler = RandomSampler(train_data)
else:
train_sampler = DistributedSampler(train_data)
train_dataloader = DataLoader(train_data, sampler=train_sampler, batch_size=args.train_batch_size)
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
all_input_ids = torch.tensor([f.input_ids for f in eval_features], dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in eval_features], dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in eval_features], dtype=torch.long)
all_label_ids = torch.tensor([f.label_id for f in eval_features], dtype=torch.long)
all_prons_ids = torch.tensor([f.prons_id for f in eval_features], dtype=torch.long)
all_prons_att_mask = torch.tensor([f.prons_att_mask for f in eval_features], dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label_ids, all_prons_ids, all_prons_att_mask)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data, sampler=eval_sampler, batch_size=args.eval_batch_size)
model.train()
best_score = 0
label_map = {i : label for i, label in enumerate(label_list)}
logger.info("cv: {}".format(cv_index))
for index in trange(int(args.num_train_epochs), desc="Epoch"):
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
y_true, y_pred = [], []
for step, batch in enumerate(tqdm(train_dataloader, desc="Iteration")):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids, prons_ids, prons_att_mask = batch
prons_emb = prons_embedding(prons_ids.detach().cpu()).to(device)
if not args.do_pron: prons_emb = None
loss,logits,att = model(input_ids, segment_ids, input_mask, prons_emb, prons_att_mask, label_ids)
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if (step + 1) % args.gradient_accumulation_steps == 0:
optimizer.step()
optimizer.zero_grad()
global_step += 1
logits = torch.argmax(F.log_softmax(logits,dim=-1),dim=-1)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
y_pred.extend(logits)
y_true.extend(label_ids)
f1_score, recall_score, precision_score = f1_2d(y_true, y_pred)
logger.info("precision, recall, f1: {}, {}, {}".format(precision_score, recall_score, f1_score))
print("loss: {}".format(tr_loss/nb_tr_examples))
y_pred, y_true = [], []
logger.info("Evaluating...")
for input_ids, input_mask, segment_ids, label_ids, prons_ids, prons_att_mask in tqdm(eval_dataloader, desc="Evaluating"):
prons_emb = prons_embedding(prons_ids).to(device)
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
prons_ids = prons_ids.to(device)
prons_att_mask = prons_att_mask.to(device)
if not args.do_pron: prons_emb = None
with torch.no_grad():
if args.do_pron:
logits, att = model(input_ids, segment_ids, input_mask, prons_emb, prons_att_mask)
else:
logits = model(input_ids, segment_ids, input_mask, prons_emb, prons_att_mask)
logits = torch.argmax(F.log_softmax(logits,dim=-1),dim=-1)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
y_pred.extend(logits)
y_true.extend(label_ids)
f1_score, recall_score, precision_score = f1_2d(y_true, y_pred)
logger.info("precision, recall, f1: {}, {}, {}".format(precision_score, recall_score, f1_score))
if f1_score > best_score:
best_score = f1_score
write_scores(score_file + 'true_'+str(cv_index), y_true)
write_scores(score_file + 'pred_'+str(cv_index), y_pred)
# Save a trained model and the associated configuration
model_to_save = model.module if hasattr(model, 'module') else model # Only save the model it-self
output_model_file = os.path.join(args.output_dir, WEIGHTS_NAME + '_' + str(cv_index))
torch.save(model_to_save.state_dict(), output_model_file)
output_config_file = os.path.join(args.output_dir, CONFIG_NAME)
with open(output_config_file, 'w') as f:
f.write(model_to_save.config.to_json_string())
label_map = {i : label for i, label in enumerate(label_list)}
model_config = {"bert_model":args.bert_model,"do_lower":args.do_lower_case,"max_seq_length":args.max_seq_length,"num_labels":len(label_list),"label_map":label_map}
json.dump(model_config,open(os.path.join(args.output_dir,"model_config.json"),"w"))
def get_optimizer(optimizer_name: str,
parameters,
learning_rate: float,
weight_decay=1e-5,
eps=1e-5,
**kwargs) -> Optimizer:
from torch.optim import SGD, Adam, RMSprop, AdamW
from torch_optimizer import RAdam, Lamb, DiffGrad, NovoGrad, Ranger
if optimizer_name.lower() == "sgd":
return SGD(parameters,
learning_rate,
momentum=0.9,
nesterov=True,
weight_decay=weight_decay,
**kwargs)
if optimizer_name.lower() == "adam":
return Adam(parameters,
learning_rate,
weight_decay=weight_decay,
eps=eps,
**kwargs) # As Jeremy suggests
if optimizer_name.lower() == "rms":
return RMSprop(parameters,
learning_rate,
weight_decay=weight_decay,
**kwargs)
if optimizer_name.lower() == "adamw":
return AdamW(parameters,
learning_rate,
weight_decay=weight_decay,
eps=eps,
**kwargs)
if optimizer_name.lower() == "radam":
return RAdam(parameters,
learning_rate,
weight_decay=weight_decay,
eps=eps,
**kwargs) # As Jeremy suggests
# Optimizers from torch-optimizer
if optimizer_name.lower() == "ranger":
return Ranger(parameters,
learning_rate,
eps=eps,
weight_decay=weight_decay,
**kwargs)
if optimizer_name.lower() == "lamb":
return Lamb(parameters,
learning_rate,
eps=eps,
weight_decay=weight_decay,
**kwargs)
if optimizer_name.lower() == "diffgrad":
return DiffGrad(parameters,
learning_rate,
eps=eps,
weight_decay=weight_decay,
**kwargs)
if optimizer_name.lower() == "novograd":
return NovoGrad(parameters,
learning_rate,
eps=eps,
weight_decay=weight_decay,
**kwargs)
# Optimizers from Apex (Fused version is faster on GPU with tensor cores)
if optimizer_name.lower() == "fused_lamb":
from apex.optimizers import FusedLAMB
return FusedLAMB(parameters,
learning_rate,
eps=eps,
weight_decay=weight_decay,
**kwargs)
if optimizer_name.lower() == "fused_sgd":
from apex.optimizers import FusedSGD
return FusedSGD(parameters,
learning_rate,
momentum=0.9,
nesterov=True,
weight_decay=weight_decay,
**kwargs)
if optimizer_name.lower() == "fused_adam":
from apex.optimizers import FusedAdam
return FusedAdam(parameters,
learning_rate,
eps=eps,
weight_decay=weight_decay,
adam_w_mode=True,
**kwargs)
raise ValueError("Unsupported optimizer name " + optimizer_name)
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument(
"--data_dir",
default=None,
type=str,
required=True,
help=
"The input data dir. Should contain the .tsv files (or other data files) for the task."
)
parser.add_argument(
"--bert_model",
default=None,
type=str,
required=True,
help="Bert pre-trained model selected in the list: bert-base-uncased, "
"bert-large-uncased, bert-base-cased, bert-large-cased, bert-base-multilingual-uncased, "
"bert-base-multilingual-cased, bert-base-chinese.")
parser.add_argument("--task_name",
default=None,
type=str,
required=True,
help="The name of the task to train.")
parser.add_argument(
"--output_dir",
default=None,
type=str,
required=True,
help=
"The output directory where the model predictions and checkpoints will be written."
)
## Other parameters
parser.add_argument(
"--cache_dir",
default="",
type=str,
help=
"Where do you want to store the pre-trained models downloaded from s3")
parser.add_argument(
"--max_seq_length",
default=128,
type=int,
help=
"The maximum total input sequence length after WordPiece tokenization. \n"
"Sequences longer than this will be truncated, and sequences shorter \n"
"than this will be padded.")
parser.add_argument("--do_train",
action='store_true',
help="Whether to run training.")
parser.add_argument("--do_eval",
action='store_true',
help="Whether to run eval on the dev set.")
parser.add_argument(
"--do_lower_case",
action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--train_batch_size",
default=64,
type=int,
help="Total batch size for training.")
parser.add_argument("--eval_batch_size",
default=256,
type=int,
help="Total batch size for eval.")
parser.add_argument("--learning_rate",
default=5e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--num_train_epochs",
default=3.0,
type=float,
help="Total number of training epochs to perform.")
parser.add_argument(
"--warmup_proportion",
default=0.1,
type=float,
help=
"Proportion of training to perform linear learning rate warmup for. "
"E.g., 0.1 = 10%% of training.")
parser.add_argument("--no_cuda",
action='store_true',
help="Whether not to use CUDA when available")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="local_rank for distributed training on gpus")
parser.add_argument('--seed',
type=int,
default=42,
help="random seed for initialization")
parser.add_argument(
'--gradient_accumulation_steps',
type=int,
default=1,
help=
"Number of updates steps to accumulate before performing a backward/update pass."
)
parser.add_argument(
'--fp16',
action='store_true',
help="Whether to use 16-bit float precision instead of 32-bit")
parser.add_argument(
'--loss_scale',
type=float,
default=0,
help=
"Loss scaling to improve fp16 numeric stability. Only used when fp16 set to True.\n"
"0 (default value): dynamic loss scaling.\n"
"Positive power of 2: static loss scaling value.\n")
parser.add_argument('--server_ip',
type=str,
default='',
help="Can be used for distant debugging.")
parser.add_argument('--server_port',
type=str,
default='',
help="Can be used for distant debugging.")
args = parser.parse_args()
# if args.server_ip and args.server_port:
# # Distant debugging - see https://code.visualstudio.com/docs/python/debugging#_attach-to-a-local-script
# import ptvsd
# print("Waiting for debugger attach")
# ptvsd.enable_attach(address=(args.server_ip, args.server_port), redirect_output=True)
# ptvsd.wait_for_attach()
processors = {
# "cola": ColaProcessor,
# "mnli": MnliProcessor,
# "mnli-mm": MnliMismatchedProcessor,
# "mrpc": MrpcProcessor,
# "sst-2": Sst2Processor,
# "sts-b": StsbProcessor,
# "qqp": QqpProcessor,
# "qnli": QnliProcessor,
"rte": RteProcessor
# "wnli": WnliProcessor,
}
output_modes = {
# "cola": "classification",
# "mnli": "classification",
# "mrpc": "classification",
# "sst-2": "classification",
# "sts-b": "regression",
# "qqp": "classification",
# "qnli": "classification",
"rte": "classification"
# "wnli": "classification",
}
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count()
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
# Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.distributed.init_process_group(backend='nccl')
logger.info(
"device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".
format(device, n_gpu, bool(args.local_rank != -1), args.fp16))
if args.gradient_accumulation_steps < 1:
raise ValueError(
"Invalid gradient_accumulation_steps parameter: {}, should be >= 1"
.format(args.gradient_accumulation_steps))
args.train_batch_size = args.train_batch_size // args.gradient_accumulation_steps
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if n_gpu > 0:
torch.cuda.manual_seed_all(args.seed)
if not args.do_train and not args.do_eval:
raise ValueError(
"At least one of `do_train` or `do_eval` must be True.")
task_name = args.task_name.lower()
if task_name not in processors:
raise ValueError("Task not found: %s" % (task_name))
processor = processors[task_name]()
output_mode = output_modes[task_name]
label_list = processor.get_labels() #[0,1]
num_labels = len(label_list)
train_examples = None
num_train_optimization_steps = None
if args.do_train:
# train_examples = processor.get_train_examples_wenpeng('/home/wyin3/Datasets/glue_data/RTE/train.tsv')
train_examples, seen_types = processor.get_examples_Yahoo_train(
'/export/home/Dataset/YahooClassification/yahoo_answers_csv/zero-shot-split/train_pu_half_v1.txt',
130000) #train_pu_half_v1.txt
# seen_classes=[0,2,4,6,8]
num_train_optimization_steps = int(
len(train_examples) / args.train_batch_size /
args.gradient_accumulation_steps) * args.num_train_epochs
if args.local_rank != -1:
num_train_optimization_steps = num_train_optimization_steps // torch.distributed.get_world_size(
)
# Prepare model
cache_dir = args.cache_dir if args.cache_dir else os.path.join(
str(PYTORCH_TRANSFORMERS_CACHE), 'distributed_{}'.format(
args.local_rank))
pretrain_model_dir = 'bert-base-uncased' #FineTuneOnCombined'# FineTuneOnMNLI
model = BertForSequenceClassification.from_pretrained(
pretrain_model_dir, num_labels=num_labels)
tokenizer = BertTokenizer.from_pretrained(pretrain_model_dir,
do_lower_case=args.do_lower_case)
if args.fp16:
model.half()
model.to(device)
if n_gpu > 1:
model = torch.nn.DataParallel(model)
# Prepare optimizer
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer,
static_loss_scale=args.loss_scale)
else:
optimizer = AdamW(optimizer_grouped_parameters, lr=args.learning_rate)
global_step = 0
nb_tr_steps = 0
tr_loss = 0
max_test_unseen_acc = 0.0
max_dev_unseen_acc = 0.0
max_dev_seen_acc = 0.0
max_overall_acc = 0.0
if args.do_train:
train_features = convert_examples_to_features(train_examples,
label_list,
args.max_seq_length,
tokenizer, output_mode)
'''load dev set'''
eval_examples, eval_label_list, eval_hypo_seen_str_indicator, eval_hypo_2_type_index = processor.get_examples_Yahoo_test(
'/export/home/Dataset/YahooClassification/yahoo_answers_csv/zero-shot-split/dev.txt',
seen_types)
eval_features = convert_examples_to_features(eval_examples, label_list,
args.max_seq_length,
tokenizer, output_mode)
eval_all_input_ids = torch.tensor([f.input_ids for f in eval_features],
dtype=torch.long)
eval_all_input_mask = torch.tensor(
[f.input_mask for f in eval_features], dtype=torch.long)
eval_all_segment_ids = torch.tensor(
[f.segment_ids for f in eval_features], dtype=torch.long)
eval_all_label_ids = torch.tensor([f.label_id for f in eval_features],
dtype=torch.long)
eval_data = TensorDataset(eval_all_input_ids, eval_all_input_mask,
eval_all_segment_ids, eval_all_label_ids)
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
'''load test set'''
test_examples, test_label_list, test_hypo_seen_str_indicator, test_hypo_2_type_index = processor.get_examples_Yahoo_test(
'/export/home/Dataset/YahooClassification/yahoo_answers_csv/zero-shot-split/test.txt',
seen_types)
test_features = convert_examples_to_features(test_examples, label_list,
args.max_seq_length,
tokenizer, output_mode)
test_all_input_ids = torch.tensor([f.input_ids for f in test_features],
dtype=torch.long)
test_all_input_mask = torch.tensor(
[f.input_mask for f in test_features], dtype=torch.long)
test_all_segment_ids = torch.tensor(
[f.segment_ids for f in test_features], dtype=torch.long)
test_all_label_ids = torch.tensor([f.label_id for f in test_features],
dtype=torch.long)
test_data = TensorDataset(test_all_input_ids, test_all_input_mask,
test_all_segment_ids, test_all_label_ids)
test_sampler = SequentialSampler(test_data)
test_dataloader = DataLoader(test_data,
sampler=test_sampler,
batch_size=args.eval_batch_size)
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
all_input_ids = torch.tensor([f.input_ids for f in train_features],
dtype=torch.long)
all_input_mask = torch.tensor([f.input_mask for f in train_features],
dtype=torch.long)
all_segment_ids = torch.tensor([f.segment_ids for f in train_features],
dtype=torch.long)
if output_mode == "classification":
all_label_ids = torch.tensor([f.label_id for f in train_features],
dtype=torch.long)
elif output_mode == "regression":
all_label_ids = torch.tensor([f.label_id for f in train_features],
dtype=torch.float)
# print('train all_label_ids:', all_label_ids)
# exit(0)
train_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label_ids)
train_sampler = RandomSampler(train_data)
train_dataloader = DataLoader(train_data,
sampler=train_sampler,
batch_size=args.train_batch_size)
iter_co = 0
for _ in trange(int(args.num_train_epochs), desc="Epoch"):
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
for step, batch in enumerate(
tqdm(train_dataloader, desc="Iteration")):
model.train()
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
logits = model(input_ids, segment_ids, input_mask, labels=None)
loss_fct = CrossEntropyLoss()
loss = loss_fct(logits[0].view(-1, num_labels),
label_ids.view(-1))
if n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
loss.backward()
tr_loss += loss.item()
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
optimizer.step()
optimizer.zero_grad()
global_step += 1
iter_co += 1
if iter_co % 400 == 0:
'''
start evaluate on dev set after this epoch
'''
model.eval()
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
eval_loss = 0
nb_eval_steps = 0
preds = []
print('Evaluating...')
for input_ids, input_mask, segment_ids, label_ids in eval_dataloader:
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
logits = model(input_ids,
segment_ids,
input_mask,
labels=None)
logits = logits[0]
loss_fct = CrossEntropyLoss()
tmp_eval_loss = loss_fct(logits.view(-1, num_labels),
label_ids.view(-1))
eval_loss += tmp_eval_loss.mean().item()
nb_eval_steps += 1
if len(preds) == 0:
preds.append(logits.detach().cpu().numpy())
else:
preds[0] = np.append(preds[0],
logits.detach().cpu().numpy(),
axis=0)
eval_loss = eval_loss / nb_eval_steps
preds = preds[0]
'''
preds: size*2 (entail, not_entail)
wenpeng added a softxmax so that each row is a prob vec
'''
pred_probs = softmax(preds, axis=1)[:, 0]
pred_binary_labels_harsh = []
pred_binary_labels_loose = []
for i in range(preds.shape[0]):
if preds[i][0] > preds[i][1] + 0.1:
pred_binary_labels_harsh.append(0)
else:
pred_binary_labels_harsh.append(1)
if preds[i][0] > preds[i][1]:
pred_binary_labels_loose.append(0)
else:
pred_binary_labels_loose.append(1)
seen_acc, unseen_acc = evaluate_Yahoo_zeroshot_SinglePhasePred(
pred_probs, pred_binary_labels_harsh,
pred_binary_labels_loose, eval_label_list,
eval_hypo_seen_str_indicator, eval_hypo_2_type_index,
seen_types)
# result = compute_metrics('F1', preds, all_label_ids.numpy())
loss = tr_loss / nb_tr_steps if args.do_train else None
# test_acc = mean_f1#result.get("f1")
if unseen_acc > max_dev_unseen_acc:
max_dev_unseen_acc = unseen_acc
print('\ndev seen_acc & acc_unseen:', seen_acc, unseen_acc,
' max_dev_unseen_acc:', max_dev_unseen_acc, '\n')
'''
start evaluate on test set after this epoch
'''
model.eval()
logger.info("***** Running testing *****")
logger.info(" Num examples = %d", len(test_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
test_loss = 0
nb_test_steps = 0
preds = []
print('Testing...')
for input_ids, input_mask, segment_ids, label_ids in test_dataloader:
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
logits = model(input_ids,
segment_ids,
input_mask,
labels=None)
logits = logits[0]
if len(preds) == 0:
preds.append(logits.detach().cpu().numpy())
else:
preds[0] = np.append(preds[0],
logits.detach().cpu().numpy(),
axis=0)
# eval_loss = eval_loss / nb_eval_steps
preds = preds[0]
pred_probs = softmax(preds, axis=1)[:, 0]
pred_binary_labels_harsh = []
pred_binary_labels_loose = []
for i in range(preds.shape[0]):
if preds[i][0] > preds[i][1] + 0.1:
pred_binary_labels_harsh.append(0)
else:
pred_binary_labels_harsh.append(1)
if preds[i][0] > preds[i][1]:
pred_binary_labels_loose.append(0)
else:
pred_binary_labels_loose.append(1)
seen_acc, unseen_acc = evaluate_Yahoo_zeroshot_SinglePhasePred(
pred_probs, pred_binary_labels_harsh,
pred_binary_labels_loose, test_label_list,
test_hypo_seen_str_indicator, test_hypo_2_type_index,
seen_types)
if unseen_acc > max_test_unseen_acc:
max_test_unseen_acc = unseen_acc
print('\n\n\t test seen_acc & acc_unseen:', seen_acc,
unseen_acc, ' max_test_unseen_acc:',
max_test_unseen_acc, '\n')
def train(args):
# load squad data for pre-training.
args.train_batch_size = int(args.train_batch_size / args.gradient_accumulation_steps)
review_train_examples = np.load(os.path.join(args.review_data_dir, "data.npz"))
squad_train_examples = np.load(os.path.join(args.squad_data_dir, "data.npz"))
num_train_steps = args.num_train_steps
# load bert pre-train data.
review_train_data = TensorDataset(
torch.from_numpy(review_train_examples["input_ids"]),
torch.from_numpy(review_train_examples["segment_ids"]),
torch.from_numpy(review_train_examples["input_mask"]),
torch.from_numpy(review_train_examples["masked_lm_ids"]),
torch.from_numpy(review_train_examples["next_sentence_labels"]))
review_train_dataloader = DataLoader(review_train_data, sampler=RandomSampler(review_train_data),
batch_size=args.train_batch_size, drop_last=True)
squad_train_data = TensorDataset(
torch.from_numpy(squad_train_examples["input_ids"]),
torch.from_numpy(squad_train_examples["segment_ids"]),
torch.from_numpy(squad_train_examples["input_mask"]),
torch.from_numpy(squad_train_examples["start_positions"]),
torch.from_numpy(squad_train_examples["end_positions"]))
squad_train_dataloader = DataLoader(squad_train_data, sampler=RandomSampler(squad_train_data),
batch_size=args.train_batch_size, drop_last=True)
# we do not have any valiation for pretuning
model = BertForMTPostTraining.from_pretrained(modelconfig.MODEL_ARCHIVE_MAP[args.bert_model])
if args.fp16:
model.half()
model.cuda()
# Prepare optimizer
param_optimizer = [(k, v) for k, v in model.named_parameters() if v.requires_grad == True]
param_optimizer = [n for n in param_optimizer if 'pooler' not in n[0]]
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)], 'weight_decay': 0.01},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
t_total = num_train_steps
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer, static_loss_scale=args.loss_scale)
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=t_total)
global_step = 0
step = 0
batch_loss = 0.
model.train()
model.zero_grad()
training = True
review_iter = iter(review_train_dataloader)
squad_iter = iter(squad_train_dataloader)
while training:
try:
batch = next(review_iter)
except:
review_iter = iter(review_train_dataloader)
batch = next(review_iter)
batch = tuple(t.cuda() for t in batch)
input_ids, segment_ids, input_mask, masked_lm_ids, next_sentence_labels = batch
review_loss = model("review", input_ids.long(), segment_ids.long(), input_mask.long(), masked_lm_ids.long(),
next_sentence_labels.long(), None, None)
try:
batch = next(squad_iter)
except:
squad_iter = iter(squad_train_dataloader)
batch = next(squad_iter)
batch = tuple(t.cuda() for t in batch)
input_ids, segment_ids, input_mask, start_positions, end_positions = batch
squad_loss = model("squad", input_ids.long(), segment_ids.long(), input_mask.long(), None, None,
start_positions.long(), end_positions.long())
loss = review_loss + squad_loss
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
batch_loss += loss
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
if (step + 1) % args.gradient_accumulation_steps == 0:
# modify learning rate with special warm up BERT uses
lr_this_step = args.learning_rate * warmup_linear(global_step / t_total, args.warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
if global_step % 50 == 0:
logging.info("step %d batch_loss %f ", global_step, batch_loss)
batch_loss = 0.
if global_step % args.save_checkpoints_steps == 0:
model.float()
torch.save(model.state_dict(),
os.path.join(args.output_dir, "pytorch_model_" + str(global_step) + ".bin"))
if args.fp16:
model.half()
if global_step >= num_train_steps:
training = False
break
step += 1
model.float()
torch.save(model.state_dict(), os.path.join(args.output_dir, "pytorch_model.bin"))
def fit(model,
training_iter,
eval_iter,
num_epoch,
pbar,
num_train_steps,
verbose=1):
# ------------------判断CUDA模式----------------------
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available()
and not args.no_cuda else "cpu")
n_gpu = torch.cuda.device_count() # 多GPU
# n_gpu = 1
else:
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
n_gpu = 1
logger.info(
"device: {} n_gpu: {}, distributed training: {}, 16-bits training: {}".
format(device, n_gpu, bool(args.local_rank != -1), args.fp16))
# ---------------------优化器-------------------------
param_optimizer = list(model.named_parameters())
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params':
[p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay':
0.01
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
t_total = num_train_steps
## ---------------------GPU半精度fp16-----------------------------
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
optimizer = FusedAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
bias_correction=False,
max_grad_norm=1.0)
if args.loss_scale == 0:
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = FP16_Optimizer(optimizer,
static_loss_scale=args.loss_scale)
## ------------------------GPU单精度fp32---------------------------
else:
optimizer = BertAdam(optimizer_grouped_parameters,
lr=args.learning_rate,
warmup=args.warmup_proportion,
t_total=t_total)
# ---------------------模型初始化----------------------
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training."
)
model = DDP(model)
elif n_gpu > 1:
model = torch.nn.DataParallel(model) # , device_ids=[0, 1, 2]
train_losses = []
eval_losses = []
train_accuracy = []
eval_accuracy = []
history = {
"train_loss": train_losses,
"train_acc": train_accuracy,
"eval_loss": eval_losses,
"eval_acc": eval_accuracy
}
# ------------------------训练------------------------------
best_f1 = 0
start = time.time()
global_step = 0
for e in range(num_epoch):
model.train()
for step, batch in enumerate(training_iter):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, start_positions, end_positions, answer_types = batch
start_logits, end_logits, answer_type_logits = model(
input_ids, segment_ids, input_mask)
train_loss = loss_fn(start_logits, end_logits, answer_type_logits,
start_positions, end_positions, answer_types)
if args.gradient_accumulation_steps > 1:
train_loss = train_loss / args.gradient_accumulation_steps
if args.fp16:
optimizer.backward(train_loss)
else:
train_loss.backward()
if (step + 1) % args.gradient_accumulation_steps == 0:
# modify learning rate with special warm up BERT uses
lr_this_step = args.learning_rate * warmup_linear(
global_step / t_total, args.warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
optimizer.step()
optimizer.zero_grad()
global_step += 1
start_logits, end_logits = start_logits.cpu(), end_logits.cpu()
start_positions, end_positions = start_positions.cpu(
), end_positions.cpu()
train_acc, f1 = qa_evaluate((start_logits, end_logits),
(start_positions, end_positions))
pbar.show_process(train_acc, train_loss.item(), f1,
time.time() - start, step)
# -----------------------验证----------------------------
model.eval()
count = 0
y_predicts, y_labels = [], []
eval_starts_predict, eval_ends_predict = [], []
eval_starts_label, eval_ends_label = [], []
eval_loss, eval_acc, eval_f1 = 0, 0, 0
with torch.no_grad():
for step, batch in enumerate(eval_iter):
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, start_positions, end_positions, answer_types = batch
start_logits, end_logits, answer_type_logits = model(
input_ids, segment_ids, input_mask)
eval_los = loss_fn(start_logits, end_logits,
answer_type_logits, start_positions,
end_positions, answer_types)
eval_loss = eval_los + eval_loss
count += 1
eval_starts_predict.append(start_logits)
eval_ends_predict.append(end_logits)
eval_starts_label.append(start_positions)
eval_ends_label.append(end_positions)
eval_starts_predicted = torch.cat(eval_starts_predict, dim=0).cpu()
eval_ends_predicted = torch.cat(eval_ends_predict, dim=0).cpu()
eval_starts_labeled = torch.cat(eval_starts_label, dim=0).cpu()
eval_ends_labeled = torch.cat(eval_ends_label, dim=0).cpu()
eval_predicted = (eval_starts_predicted, eval_ends_predicted)
eval_labeled = (eval_starts_labeled, eval_ends_labeled)
eval_acc, eval_f1 = qa_evaluate(eval_predicted, eval_labeled)
logger.info(
'\n\nEpoch %d - train_loss: %4f - eval_loss: %4f - train_acc:%4f - eval_acc:%4f - eval_f1:%4f\n'
% (e + 1, train_loss.item(), eval_loss.item() / count,
train_acc, eval_acc, eval_f1))
# 保存最好的模型
if eval_f1 > best_f1:
best_f1 = eval_f1
save_model(model, args.output_dir)
if e % verbose == 0:
train_losses.append(train_loss.item())
train_accuracy.append(train_acc)
eval_losses.append(eval_loss.item() / count)
eval_accuracy.append(eval_acc)
loss_acc_plot(history)