def test_constant_scheduler(self):
scheduler = ConstantLRSchedule(self.optimizer)
lrs = unwrap_schedule(scheduler, self.num_steps)
expected_learning_rates = [10.] * self.num_steps
self.assertEqual(len(lrs[0]), 1)
self.assertListEqual([l[0] for l in lrs], expected_learning_rates)
scheduler = ConstantLRSchedule(self.optimizer)
lrs_2 = unwrap_and_save_reload_schedule(scheduler, self.num_steps)
self.assertListEqual([l[0] for l in lrs], [l[0] for l in lrs_2])
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.download()
self.train_steps = 0
self.checkpoint_steps = 500
self.model_ckpt = str(self.model_dir.name)
self.distilbert = 'distilbert' in self.model_ckpt
if os.path.exists(os.path.join(self.model_ckpt, 'config.json')):
self.logger.info('Loading from checkpoint %s' % self.model_ckpt)
self.model_config = AutoConfig.from_pretrained(self.model_ckpt)
elif os.path.exists(os.path.join(self.data_dir, 'config.json')):
self.logger.info('Loading from trained model in %s' %
self.data_dir)
self.model_ckpt = self.data_dir
self.model_config = AutoConfig.from_pretrained(self.model_ckpt)
else:
self.logger.info(
'Initializing new model with pretrained weights %s' %
self.model_ckpt)
self.model_config = AutoConfig.from_pretrained(self.model_ckpt)
self.model_config.num_labels = 1 # set up for regression
self.device = torch.device(
"cuda" if torch.cuda.is_available() else "cpu")
if self.device == torch.device("cpu"):
self.logger.info("RUNNING ON CPU")
else:
self.logger.info("RUNNING ON CUDA")
torch.cuda.synchronize(self.device)
self.rerank_model = AutoModelForSequenceClassification.from_pretrained(
self.model_ckpt, config=self.model_config)
self.tokenizer = AutoTokenizer.from_pretrained(self.model_ckpt)
self.rerank_model.to(self.device, non_blocking=True)
self.optimizer = AdamW(self.rerank_model.parameters(),
lr=self.lr,
correct_bias=False)
self.scheduler = ConstantLRSchedule(self.optimizer)
self.weight = 1.0
def init_optimizer(self, model, lr, t_total, fixed=None):
args = self.args
no_decay = ['bias', 'LayerNorm.weight']
if fixed is None: fixed = []
optimizer_grouped_parameters = [{
"params": [
p for n, p in model.named_parameters()
if not any(nd in n
for nd in no_decay) and not any(f in n
for f in fixed)
],
"weight_decay":
args.weight_decay
}, {
"params": [
p for n, p in model.named_parameters()
if any(nd in n for nd in no_decay) and not any(f in n
for f in fixed)
],
"weight_decay":
0.0
}]
# TODO calculate t_total
optimizer = AdamW(optimizer_grouped_parameters,
lr=lr,
eps=args.adam_epsilon)
if args.scheduler == "linear":
warmup_steps = t_total * args.warmup_ratio if args.warmup_steps == -1 else args.warmup_steps
logger.info(
"Setting scheduler, warmups=%d, lr=%.7f, total_updates=%d" %
(warmup_steps, lr, t_total))
scheduler = WarmupLinearSchedule(optimizer,
warmup_steps=warmup_steps,
t_total=t_total)
elif args.scheduler == "constant":
logger.info("Setting scheduler, ConstantLRSchedule")
scheduler = ConstantLRSchedule(optimizer)
else:
raise ValueError
return optimizer_grouped_parameters, optimizer, scheduler
def train(args):
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if torch.cuda.is_available() and args.cuda:
torch.cuda.manual_seed(args.seed)
print('configuration:')
print('\n'.join('\t{:15} {}'.format(k + ':', str(v))
for k, v in sorted(dict(vars(args)).items())))
print()
config_path = os.path.join(args.save_dir, 'config.json')
model_path = os.path.join(args.save_dir, 'model.pt')
log_path = os.path.join(args.save_dir, 'log.csv')
if args.save:
export_config(args, config_path)
check_path(model_path)
with open(log_path, 'w') as fout:
fout.write('step,train_acc,dev_acc\n')
###################################################################################################
# Load data #
###################################################################################################
cp_emb = [np.load(path) for path in args.ent_emb_paths]
cp_emb = torch.tensor(np.concatenate(cp_emb, 1))
concept_num, concept_dim = cp_emb.size(0), cp_emb.size(1)
print('num_concepts: {}, concept_dim: {}'.format(concept_num, concept_dim))
device = torch.device(
"cuda:0" if torch.cuda.is_available() and args.cuda else "cpu")
dataset = GconAttnDataLoader(
train_statement_path=args.train_statements,
train_concept_jsonl=args.train_concepts,
dev_statement_path=args.dev_statements,
dev_concept_jsonl=args.dev_concepts,
test_statement_path=args.test_statements,
test_concept_jsonl=args.test_concepts,
concept2id_path=args.cpnet_vocab_path,
batch_size=args.batch_size,
eval_batch_size=args.eval_batch_size,
device=device,
model_name=args.encoder,
max_cpt_num=max_cpt_num[args.dataset],
max_seq_length=args.max_seq_len,
is_inhouse=args.inhouse,
inhouse_train_qids_path=args.inhouse_train_qids,
subsample=args.subsample,
format=args.format)
print('len(train_set): {} len(dev_set): {} len(test_set): {}'.format(
dataset.train_size(), dataset.dev_size(), dataset.test_size()))
print()
###################################################################################################
# Build model #
###################################################################################################
lstm_config = get_lstm_config_from_args(args)
model = LMGconAttn(model_name=args.encoder,
concept_num=concept_num,
concept_dim=args.cpt_out_dim,
concept_in_dim=concept_dim,
freeze_ent_emb=args.freeze_ent_emb,
pretrained_concept_emb=cp_emb,
hidden_dim=args.decoder_hidden_dim,
dropout=args.dropoutm,
encoder_config=lstm_config)
if args.freeze_ent_emb:
freeze_net(model.decoder.concept_emb)
try:
model.to(device)
except RuntimeError as e:
print(e)
print('best dev acc: 0.0 (at epoch 0)')
print('final test acc: 0.0')
print()
return
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
grouped_parameters = [
{
'params': [
p for n, p in model.encoder.named_parameters()
if not any(nd in n for nd in no_decay)
],
'weight_decay':
args.weight_decay,
'lr':
args.encoder_lr
},
{
'params': [
p for n, p in model.encoder.named_parameters()
if any(nd in n for nd in no_decay)
],
'weight_decay':
0.0,
'lr':
args.encoder_lr
},
{
'params': [
p for n, p in model.decoder.named_parameters()
if not any(nd in n for nd in no_decay)
],
'weight_decay':
args.weight_decay,
'lr':
args.decoder_lr
},
{
'params': [
p for n, p in model.decoder.named_parameters()
if any(nd in n for nd in no_decay)
],
'weight_decay':
0.0,
'lr':
args.decoder_lr
},
]
optimizer = OPTIMIZER_CLASSES[args.optim](grouped_parameters)
if args.lr_schedule == 'fixed':
scheduler = ConstantLRSchedule(optimizer)
elif args.lr_schedule == 'warmup_constant':
scheduler = WarmupConstantSchedule(optimizer,
warmup_steps=args.warmup_steps)
elif args.lr_schedule == 'warmup_linear':
max_steps = int(args.n_epochs *
(dataset.train_size() / args.batch_size))
scheduler = WarmupLinearSchedule(optimizer,
warmup_steps=args.warmup_steps,
t_total=max_steps)
print('parameters:')
for name, param in model.decoder.named_parameters():
if param.requires_grad:
print('\t{:45}\ttrainable\t{}'.format(name, param.size()))
else:
print('\t{:45}\tfixed\t{}'.format(name, param.size()))
num_params = sum(p.numel() for p in model.decoder.parameters()
if p.requires_grad)
print('\ttotal:', num_params)
if args.loss == 'margin_rank':
loss_func = nn.MarginRankingLoss(margin=0.1, reduction='mean')
elif args.loss == 'cross_entropy':
loss_func = nn.CrossEntropyLoss(reduction='mean')
###################################################################################################
# Training #
###################################################################################################
print('-' * 71)
global_step, best_dev_epoch = 0, 0
best_dev_acc, final_test_acc, total_loss = 0.0, 0.0, 0.0
start_time = time.time()
model.train()
freeze_net(model.encoder)
try:
for epoch_id in range(args.n_epochs):
if epoch_id == args.unfreeze_epoch:
unfreeze_net(model.encoder)
if epoch_id == args.refreeze_epoch:
freeze_net(model.encoder)
model.train()
for qids, labels, *input_data in dataset.train():
optimizer.zero_grad()
bs = labels.size(0)
for a in range(0, bs, args.mini_batch_size):
b = min(a + args.mini_batch_size, bs)
logits, _ = model(*[x[a:b] for x in input_data],
layer_id=args.encoder_layer)
if args.loss == 'margin_rank':
num_choice = logits.size(1)
flat_logits = logits.view(-1)
correct_mask = F.one_hot(
labels, num_classes=num_choice).view(
-1) # of length batch_size*num_choice
correct_logits = flat_logits[
correct_mask == 1].contiguous().view(-1, 1).expand(
-1, num_choice - 1).contiguous().view(
-1) # of length batch_size*(num_choice-1)
wrong_logits = flat_logits[
correct_mask ==
0] # of length batch_size*(num_choice-1)
y = wrong_logits.new_ones((wrong_logits.size(0), ))
loss = loss_func(correct_logits, wrong_logits,
y) # margin ranking loss
elif args.loss == 'cross_entropy':
loss = loss_func(logits, labels[a:b])
loss = loss * (b - a) / bs
loss.backward()
total_loss += loss.item()
if args.max_grad_norm > 0:
nn.utils.clip_grad_norm_(model.parameters(),
args.max_grad_norm)
scheduler.step()
optimizer.step()
if (global_step + 1) % args.log_interval == 0:
total_loss /= args.log_interval
ms_per_batch = 1000 * (time.time() -
start_time) / args.log_interval
print(
'| step {:5} | lr: {:9.7f} | loss {:7.4f} | ms/batch {:7.2f} |'
.format(global_step,
scheduler.get_lr()[0], total_loss,
ms_per_batch))
total_loss = 0
start_time = time.time()
global_step += 1
model.eval()
dev_acc = evaluate_accuracy(dataset.dev(), model)
test_acc = evaluate_accuracy(
dataset.test(), model) if args.test_statements else 0.0
print('-' * 71)
print('| step {:5} | dev_acc {:7.4f} | test_acc {:7.4f} |'.format(
global_step, dev_acc, test_acc))
print('-' * 71)
if args.save:
with open(log_path, 'a') as fout:
fout.write('{},{},{}\n'.format(global_step, dev_acc,
test_acc))
if dev_acc >= best_dev_acc:
best_dev_acc = dev_acc
final_test_acc = test_acc
best_dev_epoch = epoch_id
if args.save:
torch.save([model, args], model_path)
print(f'model saved to {model_path}')
model.train()
start_time = time.time()
if epoch_id > args.unfreeze_epoch and epoch_id - best_dev_epoch >= args.max_epochs_before_stop:
break
except (KeyboardInterrupt, RuntimeError) as e:
print(e)
print()
print('training ends in {} steps'.format(global_step))
print('best dev acc: {:.4f} (at epoch {})'.format(best_dev_acc,
best_dev_epoch))
print('final test acc: {:.4f}'.format(final_test_acc))
print()
def train(args):
print(args)
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if torch.cuda.is_available() and args.cuda:
torch.cuda.manual_seed(args.seed)
model_path = os.path.join(args.save_dir, 'model.pt')
check_path(model_path)
###################################################################################################
# Load data #
###################################################################################################
device = torch.device("cuda:0" if torch.cuda.is_available() and args.cuda else "cpu")
dataset = LMDataLoader(args.train_statements, args.dev_statements, args.test_statements,
batch_size=args.batch_size, eval_batch_size=args.eval_batch_size, device=device,
model_name=args.encoder,
max_seq_length=args.max_seq_len,
is_inhouse=args.inhouse, inhouse_train_qids_path=args.inhouse_train_qids, subsample=args.subsample)
###################################################################################################
# Build model #
###################################################################################################
lstm_config = get_lstm_config_from_args(args)
model = LMForMultipleChoice(args.encoder, from_checkpoint=args.from_checkpoint, encoder_config=lstm_config)
try:
model.to(device)
except RuntimeError as e:
print(e)
print('best dev acc: 0.0 (at epoch 0)')
print('final test acc: 0.0')
print()
return
no_decay = ['bias', 'LayerNorm.weight']
grouped_parameters = [
{'params': [p for n, p in model.named_parameters() if not any(nd in n for nd in no_decay)], 'lr': args.encoder_lr, 'weight_decay': args.weight_decay},
{'params': [p for n, p in model.named_parameters() if any(nd in n for nd in no_decay)], 'lr': args.encoder_lr, 'weight_decay': 0.0}
]
optimizer = OPTIMIZER_CLASSES[args.optim](grouped_parameters)
if args.lr_schedule == 'fixed':
scheduler = ConstantLRSchedule(optimizer)
elif args.lr_schedule == 'warmup_constant':
scheduler = WarmupConstantSchedule(optimizer, warmup_steps=args.warmup_steps)
elif args.lr_schedule == 'warmup_linear':
max_steps = int(args.n_epochs * (dataset.train_size() / args.batch_size))
scheduler = WarmupLinearSchedule(optimizer, warmup_steps=args.warmup_steps, t_total=max_steps)
if args.loss == 'margin_rank':
loss_func = nn.MarginRankingLoss(margin=0.1, reduction='mean')
elif args.loss == 'cross_entropy':
loss_func = nn.CrossEntropyLoss(reduction='mean')
###################################################################################################
# Training #
###################################################################################################
print()
print('***** running training *****')
print(f'| batch_size: {args.batch_size} | num_epochs: {args.n_epochs} | num_train: {dataset.train_size()} |'
f' num_dev: {dataset.dev_size()} | num_test: {dataset.test_size()}')
global_step = 0
best_dev_acc = 0
best_dev_epoch = 0
final_test_acc = 0
try:
for epoch in range(int(args.n_epochs)):
model.train()
tqdm_bar = tqdm(dataset.train(), desc="Training")
for qids, labels, *input_data in tqdm_bar:
optimizer.zero_grad()
batch_loss = 0
bs = labels.size(0)
for a in range(0, bs, args.mini_batch_size):
b = min(a + args.mini_batch_size, bs)
logits = model(*[x[a:b] for x in input_data], layer_id=args.encoder_layer)
if args.loss == 'margin_rank':
num_choice = logits.size(1)
flat_logits = logits.view(-1)
correct_mask = F.one_hot(labels, num_classes=num_choice).view(-1) # of length batch_size*num_choice
correct_logits = flat_logits[correct_mask == 1].contiguous().view(-1, 1).expand(-1, num_choice - 1).contiguous().view(-1) # of length batch_size*(num_choice-1)
wrong_logits = flat_logits[correct_mask == 0] # of length batch_size*(num_choice-1)
y = wrong_logits.new_ones((wrong_logits.size(0),))
loss = loss_func(correct_logits, wrong_logits, y) # margin ranking loss
elif args.loss == 'cross_entropy':
loss = loss_func(logits, labels[a:b])
loss = loss * (b - a) / bs
loss.backward()
batch_loss += loss.item()
if args.max_grad_norm > 0:
nn.utils.clip_grad_norm_(model.parameters(), args.max_grad_norm)
optimizer.step()
scheduler.step()
tqdm_bar.desc = "loss: {:.2e} lr: {:.2e}".format(batch_loss, scheduler.get_lr()[0])
global_step += 1
model.eval()
dev_acc = evaluate_accuracy(dataset.dev(), model)
test_acc = evaluate_accuracy(dataset.test(), model) if dataset.test_size() > 0 else 0.0
if dev_acc > best_dev_acc:
final_test_acc = test_acc
best_dev_acc = dev_acc
best_dev_epoch = epoch
torch.save([model, args], model_path)
print('| epoch {:5} | dev_acc {:7.4f} | test_acc {:7.4f} |'.format(epoch, dev_acc, test_acc))
if epoch - best_dev_epoch >= args.max_epochs_before_stop:
break
except (KeyboardInterrupt, RuntimeError) as e:
print(e)
print('***** training ends *****')
print()
print('training ends in {} steps'.format(global_step))
print('best dev acc: {:.4f} (at epoch {})'.format(best_dev_acc, best_dev_epoch))
print('final test acc: {:.4f}'.format(final_test_acc))
print()
def train(args):
print(args)
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if torch.cuda.is_available() and args.cuda:
torch.cuda.manual_seed(args.seed)
config_path = os.path.join(args.save_dir, 'config.json')
model_path = os.path.join(args.save_dir, 'model.pt')
log_path = os.path.join(args.save_dir, 'log.csv')
export_config(args, config_path)
check_path(model_path)
with open(log_path, 'w') as fout:
fout.write('step,train_acc,dev_acc\n')
###################################################################################################
# Load data #
###################################################################################################
if 'lm' in args.ent_emb:
print('Using contextualized embeddings for concepts')
use_contextualized = True
else:
use_contextualized = False
cp_emb = [np.load(path) for path in args.ent_emb_paths]
cp_emb = torch.tensor(np.concatenate(cp_emb, 1), dtype=torch.float)
concept_num, concept_dim = cp_emb.size(0), cp_emb.size(1)
print('| num_concepts: {} |'.format(concept_num))
device = torch.device("cuda:0" if torch.cuda.is_available() and args.cuda else "cpu")
dataset = LMGraphRelationNetDataLoader(args.train_statements, args.train_adj,
args.dev_statements, args.dev_adj,
args.test_statements, args.test_adj,
batch_size=args.batch_size, eval_batch_size=args.eval_batch_size,
device=(device, device),
model_name=args.encoder,
max_node_num=args.max_node_num, max_seq_length=args.max_seq_len,
is_inhouse=args.inhouse, inhouse_train_qids_path=args.inhouse_train_qids,
use_contextualized=use_contextualized,
train_embs_path=args.train_embs, dev_embs_path=args.dev_embs,
test_embs_path=args.test_embs,
subsample=args.subsample, format=args.format)
###################################################################################################
# Build model #
###################################################################################################
lstm_config = get_timeline_config(args)
model = LMGraphRelationNet(args.encoder, k=args.k, n_type=3, n_basis=args.num_basis, n_layer=args.gnn_layer_num,
diag_decompose=args.diag_decompose, n_concept=concept_num,
n_relation=args.num_relation, concept_dim=args.gnn_dim,
concept_in_dim=(
dataset.get_node_feature_dim() if use_contextualized else concept_dim),
n_attention_head=args.att_head_num, fc_dim=args.fc_dim, n_fc_layer=args.fc_layer_num,
att_dim=args.att_dim, att_layer_num=args.att_layer_num,
p_emb=args.dropouti, p_gnn=args.dropoutg, p_fc=args.dropoutf,
pretrained_concept_emb=cp_emb, freeze_ent_emb=args.freeze_ent_emb,
ablation=args.ablation, init_range=args.init_range,
eps=args.eps, use_contextualized=use_contextualized,
do_init_rn=args.init_rn, do_init_identity=args.init_identity,
encoder_config=lstm_config)
model.to(device)
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
if args.fix_trans:
no_decay.append('trans_scores')
grouped_parameters = [
{'params': [p for n, p in model.encoder.named_parameters() if not any(nd in n for nd in no_decay)],
'weight_decay': args.weight_decay, 'lr': args.encoder_lr},
{'params': [p for n, p in model.encoder.named_parameters() if any(nd in n for nd in no_decay)],
'weight_decay': 0.0, 'lr': args.encoder_lr},
{'params': [p for n, p in model.decoder.named_parameters() if not any(nd in n for nd in no_decay)],
'weight_decay': args.weight_decay, 'lr': args.decoder_lr},
{'params': [p for n, p in model.decoder.named_parameters() if any(nd in n for nd in no_decay)],
'weight_decay': 0.0, 'lr': args.decoder_lr},
]
optimizer = OPTIMIZER_CLASSES[args.optim](grouped_parameters)
if args.lr_schedule == 'fixed':
scheduler = ConstantLRSchedule(optimizer)
elif args.lr_schedule == 'warmup_constant':
scheduler = WarmupConstantSchedule(optimizer, warmup_steps=args.warmup_steps)
elif args.lr_schedule == 'warmup_linear':
max_steps = int(args.n_epochs * (dataset.train_size() / args.batch_size))
scheduler = WarmupLinearSchedule(optimizer, warmup_steps=args.warmup_steps, t_total=max_steps)
print('encoder parameters:')
for name, param in model.encoder.named_parameters():
if param.requires_grad:
print('\t{:45}\ttrainable\t{}'.format(name, param.size()))
else:
print('\t{:45}\tfixed\t{}'.format(name, param.size()))
num_params = sum(p.numel() for p in model.encoder.parameters() if p.requires_grad)
print('\ttotal:', num_params)
print('decoder parameters:')
for name, param in model.decoder.named_parameters():
if param.requires_grad:
print('\t{:45}\ttrainable\t{}'.format(name, param.size()))
else:
print('\t{:45}\tfixed\t{}'.format(name, param.size()))
num_params = sum(p.numel() for p in model.decoder.parameters() if p.requires_grad)
print('\ttotal:', num_params)
if args.loss == 'margin_rank':
loss_func = nn.MarginRankingLoss(margin=0.1, reduction='mean')
elif args.loss == 'BCE':
loss_func = nn.BCEWithLogitsLoss(reduction='mean')
elif args.loss == 'cross_entropy':
loss_func = nn.CrossEntropyLoss(reduction='mean')
###################################################################################################
# Training #
###################################################################################################
print()
print('-' * 71)
global_step, best_dev_epoch = 0, 0
best_dev_auc, final_test_auc, total_loss = 0.0, 0.0, 0.0
start_time = time.time()
model.train()
for epoch_id in range(args.n_epochs):
print('epoch: {:5} '.format(epoch_id))
model.train()
for qids, labels, *input_data in dataset.train():
optimizer.zero_grad()
bs = labels.size(0)
for a in range(0, bs, args.mini_batch_size):
b = min(a + args.mini_batch_size, bs)
logits, _ = model(*[x[a:b] for x in input_data], layer_id=args.encoder_layer)
if args.loss == 'margin_rank':
num_choice = logits.size(1)
flat_logits = logits.view(-1)
correct_mask = F.one_hot(labels, num_classes=num_choice).view(
-1) # of length batch_size*num_choice
correct_logits = flat_logits[correct_mask == 1].contiguous().view(-1, 1).expand(-1,
num_choice - 1).contiguous().view(
-1) # of length batch_size*(num_choice-1)
wrong_logits = flat_logits[correct_mask == 0] # of length batch_size*(num_choice-1)
y = wrong_logits.new_ones((wrong_logits.size(0),))
loss = loss_func(correct_logits, wrong_logits, y) # margin ranking loss
elif args.loss == 'cross_entropy':
loss = loss_func(logits, labels[a:b])
loss = loss * (b - a) / bs
loss.backward()
total_loss += loss.item()
if args.max_grad_norm > 0:
nn.utils.clip_grad_norm_(model.parameters(), args.max_grad_norm)
scheduler.step()
optimizer.step()
if (global_step + 1) % args.log_interval == 0:
total_loss /= args.log_interval
ms_per_batch = 1000 * (time.time() - start_time) / args.log_interval
print('| step {:5} | lr: {:9.7f} | loss {:7.4f} | ms/batch {:7.2f} |'.format(global_step,
scheduler.get_lr()[0],
total_loss,
ms_per_batch))
total_loss = 0.0
start_time = time.time()
global_step += 1
model.eval()
dev_acc, d_precision, d_recall, d_f1, d_roc_auc = eval_metric(dataset.dev(), model)
test_acc, t_precision, t_recall, t_f1, t_roc_auc = eval_metric(dataset.test(), model)
if global_step % args.log_interval == 0:
tl = total_loss
else:
tl = total_loss / (global_step % args.log_interval)
print('-' * 71)
print('| step {:5} | dev_acc {:7.4f} | test_acc {:7.4f} | loss {:7.4f} '.format(global_step,
dev_acc,
test_acc,
tl))
print(
'| step {:5} | dev_precision {:7.4f} | test_precision {:7.4f} | loss {:7.4f} '.format(
global_step,
d_precision,
t_precision,
tl))
print('| step {:5} | dev_recall {:7.4f} | test_recall {:7.4f} | loss {:7.4f} '.format(
global_step,
d_recall,
t_recall,
tl))
print('| step {:5} | dev_f1 {:7.4f} | test_f1 {:7.4f} | loss {:7.4f} '.format(global_step,
d_f1,
t_f1,
tl))
print('| step {:5} | dev_auc {:7.4f} | test_auc {:7.4f} | loss {:7.4f} '.format(global_step,
d_roc_auc,
t_roc_auc,
tl))
print('-' * 71)
with open(log_path, 'a') as fout:
fout.write('{},{},{}\n'.format(global_step, d_roc_auc, t_roc_auc))
if d_roc_auc >= best_dev_auc:
best_dev_auc = d_roc_auc
final_test_auc = t_roc_auc
best_dev_epoch = epoch_id
torch.save([model, args], model_path)
print(f'model saved to {model_path}')
model.train()
start_time = time.time()
if epoch_id > args.unfreeze_epoch and epoch_id - best_dev_epoch >= args.max_epochs_before_stop:
break
print()
print('training ends in {} steps'.format(global_step))
print('best dev auc: {:.4f} (at epoch {})'.format(best_dev_auc, best_dev_epoch))
print('final test auc: {:.4f}'.format(final_test_auc))
print()
def train(args):
print(args)
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if torch.cuda.is_available() and args.cuda:
torch.cuda.manual_seed(args.seed)
config_path = os.path.join(args.save_dir, 'config.json')
model_path = os.path.join(args.save_dir, 'model.pt')
log_path = os.path.join(args.save_dir, 'log.csv')
export_config(args, config_path)
check_path(model_path)
with open(log_path, 'w') as fout:
fout.write('step,dev_acc,test_acc\n')
###################################################################################################
# Load data #
###################################################################################################
cp_emb = [np.load(path) for path in args.ent_emb_paths]
cp_emb = torch.tensor(np.concatenate(cp_emb, 1), dtype=torch.float)
concept_num, concept_dim = cp_emb.size(0), cp_emb.size(1)
print('| num_concepts: {} |'.format(concept_num))
# try:
if True:
if torch.cuda.device_count() >= 2 and args.cuda:
device0 = torch.device("cuda:0")
device1 = torch.device("cuda:1")
elif torch.cuda.device_count() == 1 and args.cuda:
device0 = torch.device("cuda:0")
device1 = torch.device("cuda:0")
else:
device0 = torch.device("cpu")
device1 = torch.device("cpu")
dataset = LM_QAGNN_DataLoader(args, args.train_statements, args.train_adj,
args.dev_statements, args.dev_adj,
args.test_statements, args.test_adj,
batch_size=args.batch_size, eval_batch_size=args.eval_batch_size,
device=(device0, device1),
model_name=args.encoder,
max_node_num=args.max_node_num, max_seq_length=args.max_seq_len,
is_inhouse=args.inhouse, inhouse_train_qids_path=args.inhouse_train_qids,
subsample=args.subsample, use_cache=args.use_cache)
###################################################################################################
# Build model #
###################################################################################################
model = LM_QAGNN(args, args.encoder, k=args.k, n_ntype=4, n_etype=args.num_relation, n_concept=concept_num,
concept_dim=args.gnn_dim,
concept_in_dim=concept_dim,
n_attention_head=args.att_head_num, fc_dim=args.fc_dim, n_fc_layer=args.fc_layer_num,
p_emb=args.dropouti, p_gnn=args.dropoutg, p_fc=args.dropoutf,
pretrained_concept_emb=cp_emb, freeze_ent_emb=args.freeze_ent_emb,
init_range=args.init_range,
encoder_config={})
model.encoder.to(device0)
model.decoder.to(device1)
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
grouped_parameters = [
{'params': [p for n, p in model.encoder.named_parameters() if not any(nd in n for nd in no_decay)], 'weight_decay': args.weight_decay, 'lr': args.encoder_lr},
{'params': [p for n, p in model.encoder.named_parameters() if any(nd in n for nd in no_decay)], 'weight_decay': 0.0, 'lr': args.encoder_lr},
{'params': [p for n, p in model.decoder.named_parameters() if not any(nd in n for nd in no_decay)], 'weight_decay': args.weight_decay, 'lr': args.decoder_lr},
{'params': [p for n, p in model.decoder.named_parameters() if any(nd in n for nd in no_decay)], 'weight_decay': 0.0, 'lr': args.decoder_lr},
]
optimizer = OPTIMIZER_CLASSES[args.optim](grouped_parameters)
if args.lr_schedule == 'fixed':
try:
scheduler = ConstantLRSchedule(optimizer)
except:
scheduler = get_constant_schedule(optimizer)
elif args.lr_schedule == 'warmup_constant':
try:
scheduler = WarmupConstantSchedule(optimizer, warmup_steps=args.warmup_steps)
except:
scheduler = get_constant_schedule_with_warmup(optimizer, num_warmup_steps=args.warmup_steps)
elif args.lr_schedule == 'warmup_linear':
max_steps = int(args.n_epochs * (dataset.train_size() / args.batch_size))
try:
scheduler = WarmupLinearSchedule(optimizer, warmup_steps=args.warmup_steps, t_total=max_steps)
except:
scheduler = get_linear_schedule_with_warmup(optimizer, num_warmup_steps=args.warmup_steps, num_training_steps=max_steps)
print('parameters:')
for name, param in model.decoder.named_parameters():
if param.requires_grad:
print('\t{:45}\ttrainable\t{}\tdevice:{}'.format(name, param.size(), param.device))
else:
print('\t{:45}\tfixed\t{}\tdevice:{}'.format(name, param.size(), param.device))
num_params = sum(p.numel() for p in model.decoder.parameters() if p.requires_grad)
print('\ttotal:', num_params)
if args.loss == 'margin_rank':
loss_func = nn.MarginRankingLoss(margin=0.1, reduction='mean')
elif args.loss == 'cross_entropy':
loss_func = nn.CrossEntropyLoss(reduction='mean')
###################################################################################################
# Training #
###################################################################################################
print()
print('-' * 71)
global_step, best_dev_epoch = 0, 0
best_dev_acc, final_test_acc, total_loss = 0.0, 0.0, 0.0
start_time = time.time()
model.train()
freeze_net(model.encoder)
if True:
# try:
for epoch_id in range(args.n_epochs):
if epoch_id == args.unfreeze_epoch:
unfreeze_net(model.encoder)
if epoch_id == args.refreeze_epoch:
freeze_net(model.encoder)
model.train()
for qids, labels, *input_data in dataset.train():
optimizer.zero_grad()
bs = labels.size(0)
for a in range(0, bs, args.mini_batch_size):
b = min(a + args.mini_batch_size, bs)
logits, _ = model(*[x[a:b] for x in input_data], layer_id=args.encoder_layer)
if args.loss == 'margin_rank':
num_choice = logits.size(1)
flat_logits = logits.view(-1)
correct_mask = F.one_hot(labels, num_classes=num_choice).view(-1) # of length batch_size*num_choice
correct_logits = flat_logits[correct_mask == 1].contiguous().view(-1, 1).expand(-1, num_choice - 1).contiguous().view(-1) # of length batch_size*(num_choice-1)
wrong_logits = flat_logits[correct_mask == 0]
y = wrong_logits.new_ones((wrong_logits.size(0),))
loss = loss_func(correct_logits, wrong_logits, y) # margin ranking loss
elif args.loss == 'cross_entropy':
loss = loss_func(logits, labels[a:b])
loss = loss * (b - a) / bs
loss.backward()
total_loss += loss.item()
if args.max_grad_norm > 0:
nn.utils.clip_grad_norm_(model.parameters(), args.max_grad_norm)
scheduler.step()
optimizer.step()
if (global_step + 1) % args.log_interval == 0:
total_loss /= args.log_interval
ms_per_batch = 1000 * (time.time() - start_time) / args.log_interval
print('| step {:5} | lr: {:9.7f} | loss {:7.4f} | ms/batch {:7.2f} |'.format(global_step, scheduler.get_lr()[0], total_loss, ms_per_batch))
total_loss = 0
start_time = time.time()
global_step += 1
model.eval()
dev_acc = evaluate_accuracy(dataset.dev(), model)
save_test_preds = args.save_model
if not save_test_preds:
test_acc = evaluate_accuracy(dataset.test(), model) if args.test_statements else 0.0
else:
eval_set = dataset.test()
total_acc = []
count = 0
preds_path = os.path.join(args.save_dir, 'test_e{}_preds.csv'.format(epoch_id))
with open(preds_path, 'w') as f_preds:
with torch.no_grad():
for qids, labels, *input_data in tqdm(eval_set):
count += 1
logits, _, concept_ids, node_type_ids, edge_index, edge_type = model(*input_data, detail=True)
predictions = logits.argmax(1) #[bsize, ]
preds_ranked = (-logits).argsort(1) #[bsize, n_choices]
for i, (qid, label, pred, _preds_ranked, cids, ntype, edges, etype) in enumerate(zip(qids, labels, predictions, preds_ranked, concept_ids, node_type_ids, edge_index, edge_type)):
acc = int(pred.item()==label.item())
print ('{},{}'.format(qid, chr(ord('A') + pred.item())), file=f_preds)
f_preds.flush()
total_acc.append(acc)
test_acc = float(sum(total_acc))/len(total_acc)
print('-' * 71)
print('| epoch {:3} | step {:5} | dev_acc {:7.4f} | test_acc {:7.4f} |'.format(epoch_id, global_step, dev_acc, test_acc))
print('-' * 71)
with open(log_path, 'a') as fout:
fout.write('{},{},{}\n'.format(global_step, dev_acc, test_acc))
if dev_acc >= best_dev_acc:
best_dev_acc = dev_acc
final_test_acc = test_acc
best_dev_epoch = epoch_id
if args.save_model:
torch.save([model, args], model_path +".{}".format(epoch_id))
with open(model_path +".{}.log.txt".format(epoch_id), 'w') as f:
for p in model.named_parameters():
print (p, file=f)
print(f'model saved to {model_path}')
else:
if args.save_model:
torch.save([model, args], model_path +".{}".format(epoch_id))
with open(model_path +".{}.log.txt".format(epoch_id), 'w') as f:
for p in model.named_parameters():
print (p, file=f)
print(f'model saved to {model_path}')
model.train()
start_time = time.time()
if epoch_id > args.unfreeze_epoch and epoch_id - best_dev_epoch >= args.max_epochs_before_stop:
break
def train(args):
print(args)
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if torch.cuda.is_available() and args.cuda:
torch.cuda.manual_seed(args.seed)
config_path = os.path.join(args.save_dir, 'config.json')
model_path = os.path.join(args.save_dir, 'model.pt')
log_path = os.path.join(args.save_dir, 'log.csv')
export_config(args, config_path)
check_path(model_path)
with open(log_path, 'w') as fout:
fout.write('step,train_acc,dev_acc\n')
###################################################################################################
# Load data #
###################################################################################################
if 'lm' in args.ent_emb:
print('Using contextualized embeddings for concepts')
use_contextualized, cp_emb = True, None
else:
use_contextualized = False
cp_emb = [np.load(path) for path in args.ent_emb_paths]
cp_emb = torch.tensor(np.concatenate(cp_emb, 1))
concept_num, concept_dim = cp_emb.size(0), cp_emb.size(1)
rel_emb = np.load(args.rel_emb_path)
rel_emb = np.concatenate((rel_emb, -rel_emb), 0)
rel_emb = cal_2hop_rel_emb(rel_emb)
rel_emb = torch.tensor(rel_emb)
relation_num, relation_dim = rel_emb.size(0), rel_emb.size(1)
# print('| num_concepts: {} | num_relations: {} |'.format(concept_num, relation_num))
device = torch.device(
"cuda:0" if torch.cuda.is_available() and args.cuda else "cpu")
dataset = LMRelationNetDataLoader(
args.train_statements,
args.train_rel_paths,
args.dev_statements,
args.dev_rel_paths,
args.test_statements,
args.test_rel_paths,
batch_size=args.batch_size,
eval_batch_size=args.eval_batch_size,
device=device,
model_name=args.encoder,
max_tuple_num=args.max_tuple_num,
max_seq_length=args.max_seq_len,
is_inhouse=args.inhouse,
inhouse_train_qids_path=args.inhouse_train_qids,
use_contextualized=use_contextualized,
train_adj_path=args.train_adj,
dev_adj_path=args.dev_adj,
test_adj_path=args.test_adj,
train_node_features_path=args.train_node_features,
dev_node_features_path=args.dev_node_features,
test_node_features_path=args.test_node_features,
node_feature_type=args.node_feature_type)
###################################################################################################
# Build model #
###################################################################################################
lstm_config = get_lstm_config_from_args(args)
model = LMRelationNet(model_name=args.encoder,
concept_num=concept_num,
concept_dim=relation_dim,
relation_num=relation_num,
relation_dim=relation_dim,
concept_in_dim=(dataset.get_node_feature_dim() if
use_contextualized else concept_dim),
hidden_size=args.mlp_dim,
num_hidden_layers=args.mlp_layer_num,
num_attention_heads=args.att_head_num,
fc_size=args.fc_dim,
num_fc_layers=args.fc_layer_num,
dropout=args.dropoutm,
pretrained_concept_emb=cp_emb,
pretrained_relation_emb=rel_emb,
freeze_ent_emb=args.freeze_ent_emb,
init_range=args.init_range,
ablation=args.ablation,
use_contextualized=use_contextualized,
emb_scale=args.emb_scale,
encoder_config=lstm_config)
try:
model.to(device)
except RuntimeError as e:
print(e)
print('best dev acc: 0.0 (at epoch 0)')
print('final test acc: 0.0')
print()
return
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
grouped_parameters = [
{
'params': [
p for n, p in model.encoder.named_parameters()
if not any(nd in n for nd in no_decay)
],
'weight_decay':
args.weight_decay,
'lr':
args.encoder_lr
},
{
'params': [
p for n, p in model.encoder.named_parameters()
if any(nd in n for nd in no_decay)
],
'weight_decay':
0.0,
'lr':
args.encoder_lr
},
{
'params': [
p for n, p in model.decoder.named_parameters()
if not any(nd in n for nd in no_decay)
],
'weight_decay':
args.weight_decay,
'lr':
args.decoder_lr
},
{
'params': [
p for n, p in model.decoder.named_parameters()
if any(nd in n for nd in no_decay)
],
'weight_decay':
0.0,
'lr':
args.decoder_lr
},
]
optimizer = OPTIMIZER_CLASSES[args.optim](grouped_parameters)
if args.lr_schedule == 'fixed':
scheduler = ConstantLRSchedule(optimizer)
elif args.lr_schedule == 'warmup_constant':
scheduler = WarmupConstantSchedule(optimizer,
warmup_steps=args.warmup_steps)
elif args.lr_schedule == 'warmup_linear':
max_steps = int(args.n_epochs *
(dataset.train_size() / args.batch_size))
scheduler = WarmupLinearSchedule(optimizer,
warmup_steps=args.warmup_steps,
t_total=max_steps)
print('parameters:')
for name, param in model.decoder.named_parameters():
if param.requires_grad:
print('\t{:45}\ttrainable\t{}'.format(name, param.size()))
else:
print('\t{:45}\tfixed\t{}'.format(name, param.size()))
num_params = sum(p.numel() for p in model.decoder.parameters()
if p.requires_grad)
print('\ttotal:', num_params)
if args.loss == 'margin_rank':
loss_func = nn.MarginRankingLoss(margin=0.1, reduction='mean')
elif args.loss == 'cross_entropy':
loss_func = nn.CrossEntropyLoss(reduction='mean')
###################################################################################################
# Training #
###################################################################################################
print()
print('-' * 71)
global_step, best_dev_epoch = 0, 0
best_dev_acc, final_test_acc, total_loss = 0.0, 0.0, 0.0
start_time = time.time()
model.train()
freeze_net(model.encoder)
try:
rel_grad = []
linear_grad = []
for epoch_id in range(args.n_epochs):
if epoch_id == args.unfreeze_epoch:
print('encoder unfreezed')
unfreeze_net(model.encoder)
if epoch_id == args.refreeze_epoch:
print('encoder refreezed')
freeze_net(model.encoder)
model.train()
for qids, labels, *input_data in dataset.train():
optimizer.zero_grad()
bs = labels.size(0)
for a in range(0, bs, args.mini_batch_size):
b = min(a + args.mini_batch_size, bs)
logits, _ = model(*[x[a:b] for x in input_data],
layer_id=args.encoder_layer)
if args.loss == 'margin_rank':
num_choice = logits.size(1)
flat_logits = logits.view(-1)
correct_mask = F.one_hot(
labels, num_classes=num_choice).view(
-1) # of length batch_size*num_choice
correct_logits = flat_logits[
correct_mask == 1].contiguous().view(-1, 1).expand(
-1, num_choice - 1).contiguous().view(
-1) # of length batch_size*(num_choice-1)
wrong_logits = flat_logits[
correct_mask ==
0] # of length batch_size*(num_choice-1)
y = wrong_logits.new_ones((wrong_logits.size(0), ))
loss = loss_func(correct_logits, wrong_logits,
y) # margin ranking loss
elif args.loss == 'cross_entropy':
loss = loss_func(logits, labels[a:b])
loss = loss * (b - a) / bs
loss.backward()
total_loss += loss.item()
if args.max_grad_norm > 0:
nn.utils.clip_grad_norm_(model.parameters(),
args.max_grad_norm)
rel_grad.append(
model.decoder.rel_emb.weight.grad.abs().mean().item())
linear_grad.append(model.decoder.mlp.layers[8].weight.grad.abs(
).mean().item())
scheduler.step()
optimizer.step()
if (global_step + 1) % args.log_interval == 0:
total_loss /= args.log_interval
ms_per_batch = 1000 * (time.time() -
start_time) / args.log_interval
print(
'| step {:5} | lr: {:9.7f} | loss {:7.4f} | ms/batch {:7.2f} |'
.format(global_step,
scheduler.get_lr()[0], total_loss,
ms_per_batch))
# print('| rel_grad: {:1.2e} | linear_grad: {:1.2e} |'.format(sum(rel_grad) / len(rel_grad), sum(linear_grad) / len(linear_grad)))
total_loss = 0
rel_grad = []
linear_grad = []
start_time = time.time()
global_step += 1
model.eval()
dev_acc = evaluate_accuracy(dataset.dev(), model)
test_acc = evaluate_accuracy(
dataset.test(), model) if args.test_statements else 0.0
print('-' * 71)
print('| epoch {:5} | dev_acc {:7.4f} | test_acc {:7.4f} |'.format(
epoch_id, dev_acc, test_acc))
print('-' * 71)
with open(log_path, 'a') as fout:
fout.write('{},{},{}\n'.format(global_step, dev_acc, test_acc))
if dev_acc >= best_dev_acc:
best_dev_acc = dev_acc
final_test_acc = test_acc
best_dev_epoch = epoch_id
torch.save([model, args], model_path)
print(f'model saved to {model_path}')
model.train()
start_time = time.time()
if epoch_id > args.unfreeze_epoch and epoch_id - best_dev_epoch >= args.max_epochs_before_stop:
break
except (KeyboardInterrupt, RuntimeError) as e:
print(e)
print()
print('training ends in {} steps'.format(global_step))
print('best dev acc: {:.4f} (at epoch {})'.format(best_dev_acc,
best_dev_epoch))
print('final test acc: {:.4f}'.format(final_test_acc))
print()
class TransformersModel(BaseModel):
max_grad_norm = 1.0
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.download()
self.train_steps = 0
self.checkpoint_steps = 500
self.model_ckpt = str(self.model_dir.name)
self.distilbert = 'distilbert' in self.model_ckpt
if os.path.exists(os.path.join(self.model_ckpt, 'config.json')):
self.logger.info('Loading from checkpoint %s' % self.model_ckpt)
self.model_config = AutoConfig.from_pretrained(self.model_ckpt)
elif os.path.exists(os.path.join(self.data_dir, 'config.json')):
self.logger.info('Loading from trained model in %s' %
self.data_dir)
self.model_ckpt = self.data_dir
self.model_config = AutoConfig.from_pretrained(self.model_ckpt)
else:
self.logger.info(
'Initializing new model with pretrained weights %s' %
self.model_ckpt)
self.model_config = AutoConfig.from_pretrained(self.model_ckpt)
self.model_config.num_labels = 1 # set up for regression
self.device = torch.device(
"cuda" if torch.cuda.is_available() else "cpu")
if self.device == torch.device("cpu"):
self.logger.info("RUNNING ON CPU")
else:
self.logger.info("RUNNING ON CUDA")
torch.cuda.synchronize(self.device)
self.rerank_model = AutoModelForSequenceClassification.from_pretrained(
self.model_ckpt, config=self.model_config)
self.tokenizer = AutoTokenizer.from_pretrained(self.model_ckpt)
self.rerank_model.to(self.device, non_blocking=True)
self.optimizer = AdamW(self.rerank_model.parameters(),
lr=self.lr,
correct_bias=False)
self.scheduler = ConstantLRSchedule(self.optimizer)
self.weight = 1.0
def train(self, query, choices):
input_ids, attention_mask, token_type_ids = self.encode(query, choices)
if self.model_config.num_labels == 1:
labels = torch.tensor(labels,
dtype=torch.float).to(self.device,
non_blocking=True)
else:
labels = torch.tensor(labels,
dtype=torch.long).to(self.device,
non_blocking=True)
if self.distilbert:
loss = self.rerank_model(input_ids,
labels=labels,
attention_mask=attention_mask)[0]
else:
loss = self.rerank_model(input_ids,
labels=labels,
attention_mask=attention_mask,
token_type_ids=token_type_ids)[0]
loss.backward()
torch.nn.utils.clip_grad_norm_(self.rerank_model.parameters(),
self.max_grad_norm)
self.optimizer.step()
self.scheduler.step()
self.rerank_model.zero_grad()
self.train_steps += 1
if self.weight < 1.0:
self.weight += self.lr * 0.1
if self.train_steps % self.checkpoint_steps == 0:
self.save()
def rank(self, query, choices):
input_ids, attention_mask, token_type_ids = self.encode(query, choices)
with torch.no_grad():
if self.distilbert:
logits = self.rerank_model(input_ids,
attention_mask=attention_mask)[0]
else:
logits = self.rerank_model(input_ids,
attention_mask=attention_mask,
token_type_ids=token_type_ids)[0]
scores = np.squeeze(logits.detach().cpu().numpy())
if len(scores.shape) > 1 and scores.shape[1] == 2:
scores = np.squeeze(scores[:, 1])
if len(logits) == 1:
scores = [scores]
return np.argsort(scores)[::-1]
def encode(self, query, choices):
inputs = [
self.tokenizer.encode_plus(query, choice, add_special_tokens=True)
for choice in choices
]
max_len = min(max(len(t['input_ids']) for t in inputs),
self.max_seq_len)
input_ids = [
t['input_ids'][:max_len] + [0] *
(max_len - len(t['input_ids'][:max_len])) for t in inputs
]
attention_mask = [[1] * len(t['input_ids'][:max_len]) + [0] *
(max_len - len(t['input_ids'][:max_len]))
for t in inputs]
token_type_ids = [
t['token_type_ids'][:max_len] + [0] *
(max_len - len(t['token_type_ids'][:max_len])) for t in inputs
]
input_ids = torch.tensor(input_ids).to(self.device, non_blocking=True)
attention_mask = torch.tensor(attention_mask).to(self.device,
non_blocking=True)
token_type_ids = torch.tensor(token_type_ids).to(self.device,
non_blocking=True)
return input_ids, attention_mask, token_type_ids
def save(self):
self.logger.info('Saving model')
os.makedirs(self.data_dir, exist_ok=True)
self.rerank_model.save_pretrained(self.data_dir)
self.tokenizer.save_pretrained(self.data_dir)
def train(args):
random.seed(args.seed)
np.random.seed(args.seed)
torch.manual_seed(args.seed)
if torch.cuda.is_available() and args.cuda:
torch.cuda.manual_seed(args.seed)
print('configuration:')
print('\n'.join('\t{:15} {}'.format(k + ':', str(v))
for k, v in sorted(dict(vars(args)).items())))
print()
config_path = os.path.join(args.save_dir, 'config.json')
model_path = os.path.join(args.save_dir, 'model.pt')
log_path = os.path.join(args.save_dir, 'log.csv')
export_config(args, config_path)
check_path(model_path)
with open(log_path, 'w') as fout:
fout.write('step,train_acc,dev_acc\n')
dic = {'transe': 0, 'numberbatch': 1}
cp_emb, rel_emb = [
np.load(args.ent_emb_paths[dic[source]]) for source in args.ent_emb
], np.load(args.rel_emb_path)
cp_emb = np.concatenate(cp_emb, axis=1)
cp_emb = torch.tensor(cp_emb)
rel_emb = np.concatenate((rel_emb, -rel_emb), 0)
rel_emb = torch.tensor(rel_emb)
concept_num, concept_dim = cp_emb.size(0), cp_emb.size(1)
print('num_concepts: {}, concept_dim: {}'.format(concept_num, concept_dim))
relation_num, relation_dim = rel_emb.size(0), rel_emb.size(1)
print('num_relations: {}, relation_dim: {}'.format(relation_num,
relation_dim))
try:
device0 = torch.device(
"cuda:0" if torch.cuda.is_available() and args.cuda else "cpu")
device1 = torch.device(
"cuda:1" if torch.cuda.is_available() and args.cuda else "cpu")
dataset = KagNetDataLoader(
args.train_statements,
args.train_paths,
args.train_graphs,
args.dev_statements,
args.dev_paths,
args.dev_graphs,
args.test_statements,
args.test_paths,
args.test_graphs,
batch_size=args.mini_batch_size,
eval_batch_size=args.eval_batch_size,
device=(device0, device1),
model_name=args.encoder,
max_seq_length=args.max_seq_len,
max_path_len=args.max_path_len,
is_inhouse=args.inhouse,
inhouse_train_qids_path=args.inhouse_train_qids,
use_cache=args.use_cache)
print('dataset done')
###################################################################################################
# Build model #
###################################################################################################
lstm_config = get_lstm_config_from_args(args)
model = LMKagNet(model_name=args.encoder,
concept_dim=concept_dim,
relation_dim=relation_dim,
concept_num=concept_num,
relation_num=relation_num,
qas_encoded_dim=args.qas_encoded_dim,
pretrained_concept_emb=cp_emb,
pretrained_relation_emb=rel_emb,
lstm_dim=args.lstm_dim,
lstm_layer_num=args.lstm_layer_num,
graph_hidden_dim=args.graph_hidden_dim,
graph_output_dim=args.graph_output_dim,
dropout=args.dropout,
bidirect=args.bidirect,
num_random_paths=args.num_random_paths,
path_attention=args.path_attention,
qa_attention=args.qa_attention,
encoder_config=lstm_config)
print('model done')
if args.freeze_ent_emb:
freeze_net(model.decoder.concept_emb)
print('freezed')
model.encoder.to(device0)
print('encoder done')
model.decoder.to(device1)
print('decoder done')
except RuntimeError as e:
print(e)
print('best dev acc: 0.0 (at epoch 0)')
print('final test acc: 0.0')
print()
return
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
grouped_parameters = [
{
'params': [
p for n, p in model.encoder.named_parameters()
if not any(nd in n for nd in no_decay)
],
'weight_decay':
args.weight_decay,
'lr':
args.encoder_lr
},
{
'params': [
p for n, p in model.encoder.named_parameters()
if any(nd in n for nd in no_decay)
],
'weight_decay':
0.0,
'lr':
args.encoder_lr
},
{
'params': [
p for n, p in model.decoder.named_parameters()
if not any(nd in n for nd in no_decay)
],
'weight_decay':
args.weight_decay,
'lr':
args.decoder_lr
},
{
'params': [
p for n, p in model.decoder.named_parameters()
if any(nd in n for nd in no_decay)
],
'weight_decay':
0.0,
'lr':
args.decoder_lr
},
]
optimizer = OPTIMIZER_CLASSES[args.optim](grouped_parameters)
if args.lr_schedule == 'fixed':
scheduler = ConstantLRSchedule(optimizer)
elif args.lr_schedule == 'warmup_constant':
scheduler = WarmupConstantSchedule(optimizer,
warmup_steps=args.warmup_steps)
elif args.lr_schedule == 'warmup_linear':
max_steps = int(args.n_epochs *
(dataset.train_size() / args.batch_size))
scheduler = WarmupLinearSchedule(optimizer,
warmup_steps=args.warmup_steps,
t_total=max_steps)
print('parameters:')
for name, param in model.decoder.named_parameters():
if param.requires_grad:
print('\t{:45}\ttrainable\t{}'.format(name, param.size()))
else:
print('\t{:45}\tfixed\t{}'.format(name, param.size()))
num_params = sum(p.numel() for p in model.decoder.parameters()
if p.requires_grad)
print('\ttotal:', num_params)
if args.loss == 'margin_rank':
loss_func = nn.MarginRankingLoss(margin=0.1, reduction='mean')
elif args.loss == 'cross_entropy':
loss_func = nn.CrossEntropyLoss(reduction='mean')
print()
print('-' * 71)
global_step, last_best_step = 0, 0
best_dev_acc, final_test_acc, total_loss = 0.0, 0.0, 0.0
start_time = time.time()
model.train()
freeze_net(model.encoder)
try:
for epoch_id in range(args.n_epochs):
if epoch_id == args.unfreeze_epoch:
unfreeze_net(model.encoder)
if epoch_id == args.refreeze_epoch:
freeze_net(model.encoder)
for qids, labels, *input_data in dataset.train():
optimizer.zero_grad()
bs = labels.size(0)
for a in range(0, bs, args.mini_batch_size):
print(00)
b = min(a + args.mini_batch_size, bs)
# print(11)
# # print([x.device if isinstance(x, (torch.tensor,)) else None for x in input_data])
# print(type(input_data[0]), type(input_data[0][0]), input_data[0][0].size())
# print(type(input_data[1]), type(input_data[1][0]), input_data[1][0].size())
# print(type(input_data[2]), type(input_data[2][0]), input_data[2][0].size())
# print(type(input_data[3]), type(input_data[3][0]), input_data[3][0].size())
# print(type(input_data[4]), type(input_data[4][0]))
# print(type(input_data[5]), type(input_data[5][0]))
# print(type(input_data[6]), type(input_data[6][0]))
# print(type(input_data[7]), type(input_data[7][0]))
# print(type(input_data[8]), type(input_data[8][0]))
# print(type(input_data[9]))
# print(type(input_data[10]))
logits, _ = model(*[x for x in input_data],
layer_id=args.encoder_layer)
if args.loss == 'margin_rank':
num_choice = logits.size(1)
flat_logits = logits.view(-1)
correct_mask = F.one_hot(
labels, num_classes=num_choice).view(
-1) # of length batch_size*num_choice
correct_logits = flat_logits[
correct_mask == 1].contiguous().view(-1, 1).expand(
-1, num_choice - 1).contiguous().view(
-1) # of length batch_size*(num_choice-1)
wrong_logits = flat_logits[
correct_mask ==
0] # of length batch_size*(num_choice-1)
y = wrong_logits.new_ones((wrong_logits.size(0), ))
loss = loss_func(correct_logits, wrong_logits,
y) # margin ranking loss
elif args.loss == 'cross_entropy':
loss = loss_func(logits, labels[a:b])
loss = loss * (b - a) / bs
loss.backward()
total_loss += loss.item()
if args.max_grad_norm > 0:
nn.utils.clip_grad_norm_(model.parameters(),
args.max_grad_norm)
scheduler.step()
optimizer.step()
if (global_step + 1) % args.log_interval == 0:
total_loss /= args.log_interval
ms_per_batch = 1000 * (time.time() -
start_time) / args.log_interval
print(
'| step {:5} | lr: {:9.7f} | loss {:7.4f} | ms/batch {:7.2f} |'
.format(global_step,
scheduler.get_lr()[0], total_loss,
ms_per_batch))
total_loss = 0
start_time = time.time()
if (global_step + 1) % args.eval_interval == 0:
model.eval()
dev_acc = evaluate_accuracy(dataset.dev(), model)
test_acc = evaluate_accuracy(
dataset.test(), model) if args.test_statements else 0.0
print('-' * 71)
print('| step {:5} | dev_acc {:7.4f} | test_acc {:7.4f} |'.
format(global_step, dev_acc, test_acc))
print('-' * 71)
with open(log_path, 'a') as fout:
fout.write('{},{},{}\n'.format(global_step, dev_acc,
test_acc))
if dev_acc >= best_dev_acc:
best_dev_acc = dev_acc
final_test_acc = test_acc
last_best_step = global_step
torch.save([model, args], model_path)
print(f'model saved to {model_path}')
model.train()
start_time = time.time()
global_step += 1
# if global_step >= args.max_steps or global_step - last_best_step >= args.max_steps_before_stop:
# end_flag = True
# break
except (KeyboardInterrupt, RuntimeError) as e:
print(e)
print()
print('training ends in {} steps'.format(global_step))
print('best dev acc: {:.4f} (at step)'.format(best_dev_acc,
last_best_step))
print('final test acc: {:.4f}'.format(final_test_acc))
def train(args, train_dataset, model, tokenizer):
""" Train the model """
if args.local_rank in [-1, 0]:
# CHANGE: Change log dir to be in output_dir
# We want the logs to be saved in GDrive for persistence
# Note however that this dir can be overwritten with overwrite_output_dir
if args.log_dir is not None:
import socket
from datetime import datetime
current_time = datetime.now().strftime('%b%d_%H-%M-%S')
log_dir = os.path.join(args.log_dir, current_time + '_' + socket.gethostname())
tb_writer = SummaryWriter(log_dir=log_dir)
else:
tb_writer = SummaryWriter()
args.train_batch_size = args.per_gpu_train_batch_size * max(1, args.n_gpu)
train_sampler = RandomSampler(train_dataset) if args.local_rank == -1 else DistributedSampler(train_dataset)
train_dataloader = DataLoader(train_dataset, sampler=train_sampler, batch_size=args.train_batch_size)
if args.max_steps > 0:
t_total = args.max_steps
args.num_train_epochs = args.max_steps // (len(train_dataloader) // args.gradient_accumulation_steps) + 1
else:
t_total = len(train_dataloader) // args.gradient_accumulation_steps * args.num_train_epochs
# Prepare optimizer and schedule (linear warmup and decay)
no_decay = ['bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in model.named_parameters() if not any(nd in n for nd in no_decay)], 'weight_decay': args.weight_decay},
{'params': [p for n, p in model.named_parameters() if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
if args.lr_finder:
# Causes to go on a mock training from `start_lr` to `end_lr` for `num_it` iterations.
# https://github.com/fastai/fastai/blob/e5d0aeb69d195f135608318094745e497e2d713f/fastai/callbacks/lr_finder.py
start_lr = 1e-7
end_lr = 1
num_it = 100
annealing_exp = lambda x: start_lr * (end_lr / start_lr) ** (x / num_it)
optimizer = AdamW(optimizer_grouped_parameters, lr=1, eps=args.adam_epsilon)
scheduler = torch.optim.lr_scheduler.LambdaLR(optimizer, annealing_exp)
else:
optimizer = AdamW(optimizer_grouped_parameters, lr=args.learning_rate, eps=args.adam_epsilon)
scheduler = ConstantLRSchedule(optimizer)
if args.fp16:
try:
from apex import amp
except ImportError:
raise ImportError("Please install apex from https://www.github.com/nvidia/apex to use fp16 training.")
model, optimizer = amp.initialize(model, optimizer, opt_level=args.fp16_opt_level)
# multi-gpu training (should be after apex fp16 initialization)
if args.n_gpu > 1:
model = torch.nn.DataParallel(model)
# Distributed training (should be after apex fp16 initialization)
if args.local_rank != -1:
model = torch.nn.parallel.DistributedDataParallel(model, device_ids=[args.local_rank],
output_device=args.local_rank,
find_unused_parameters=True)
# Train!
global_step = 0
tr_loss, logging_loss = 0.0, 0.0
model.zero_grad()
set_seed(args) # Added here for reproducibility (even between python 2 and 3)
# Capture LR finder output
lr_finder_lr = []
lr_finder_loss = []
lr_finder_best_loss = None
# CHANGE: One progress bar for all iterations
def create_pbar():
return tqdm(total=args.max_steps if args.max_steps > -1 else len(train_dataloader)*int(args.num_train_epochs),
desc="Training", disable=args.local_rank not in [-1, 0])
pbar = create_pbar()
for epoch in range(int(args.num_train_epochs)):
for step, batch in enumerate(train_dataloader):
inputs, labels = mask_tokens(batch, tokenizer, args) if args.mlm else (batch, batch)
inputs = inputs.to(args.device)
labels = labels.to(args.device)
model.train()
outputs = model(inputs, masked_lm_labels=labels) if args.mlm else model(inputs, labels=labels)
loss = outputs[0] # model outputs are always tuple in transformers (see doc)
if args.n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu parallel training
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
if args.fp16:
with amp.scale_loss(loss, optimizer) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
tr_loss += loss.item()
if (step + 1) % args.gradient_accumulation_steps == 0:
if args.fp16:
torch.nn.utils.clip_grad_norm_(amp.master_params(optimizer), args.max_grad_norm)
else:
torch.nn.utils.clip_grad_norm_(model.parameters(), args.max_grad_norm)
optimizer.step()
scheduler.step() # Update learning rate schedule
model.zero_grad()
global_step += 1
if args.lr_finder:
# CHANGE: Capture LR and loss
# https://towardsdatascience.com/adaptive-and-cyclical-learning-rates-using-pytorch-2bf904d18dee
lr_finder_lr.append(scheduler.get_lr()[0])
if global_step == 1:
lr_finder_loss.append(loss)
lr_finder_best_loss = loss
else:
# Smooth loss
smoothing = 0.05
smooth_loss = smoothing * loss + (1 - smoothing) * lr_finder_loss[-1]
lr_finder_loss.append(smooth_loss)
if smooth_loss < lr_finder_best_loss:
lr_finder_best_loss = smooth_loss
# Determine if loss has runaway and we should stop
if smooth_loss > 4 * lr_finder_best_loss or torch.isnan(smooth_loss):
break
# Append to a file to be visualized later
with open(os.path.join(args.output_dir, 'lr_finder.txt'), "a") as myfile:
myfile.write("{},{}\n".format(lr_finder_lr[-1], lr_finder_loss[-1]))
else:
# CHANGE: Los less
if args.local_rank in [-1, 0] and args.logging_steps > 0 and global_step % args.logging_steps == 0:
# Log metrics
avg_loss = (tr_loss - logging_loss)/args.logging_steps
tb_writer.add_scalar('lr', scheduler.get_lr()[0], global_step)
tb_writer.add_scalar('loss', avg_loss, global_step)
logging_loss = tr_loss
if args.local_rank in [-1, 0] and args.eval_steps > 0 and global_step % args.eval_steps == 0:
if args.local_rank == -1 and args.evaluate_during_training: # Only evaluate when single GPU otherwise metrics may not average well
pbar.close() # one bar at a time to prevent issues with nested bars
results = evaluate(args, model, tokenizer)
pbar = create_pbar()
pbar.n = global_step-1
pbar.refresh()
for key, value in results.items():
tb_writer.add_scalar('eval_{}'.format(key), value, global_step)
if args.local_rank in [-1, 0] and args.save_steps > 0 and global_step % args.save_steps == 0:
checkpoint_prefix = 'checkpoint'
# Save model checkpoint
output_dir = os.path.join(args.output_dir, '{}-{}'.format(checkpoint_prefix, global_step))
if not os.path.exists(output_dir):
os.makedirs(output_dir)
model_to_save = model.module if hasattr(model, 'module') else model # Take care of distributed/parallel training
model_to_save.save_pretrained(output_dir)
torch.save(args, os.path.join(output_dir, 'training_args.bin'))
logger.info("Saving model checkpoint to %s", output_dir)
_rotate_checkpoints(args, checkpoint_prefix)
pbar.update()
if args.max_steps > 0 and global_step > args.max_steps:
break
if args.max_steps > 0 and global_step > args.max_steps:
break
pbar.close()
if args.local_rank in [-1, 0]:
tb_writer.close()
return global_step, tr_loss / global_step
