def __init__(self):
super(ModelLinear, self).__init__()
with supernet(expand_ratio=(1, 2, 4)) as ofa_super:
models = []
models += [nn.Embedding(num_embeddings=64, embedding_dim=64)]
weight_attr = paddle.ParamAttr(
learning_rate=0.5,
regularizer=paddle.regularizer.L2Decay(1.0),
trainable=True)
bias_attr = paddle.ParamAttr(
initializer=paddle.nn.initializer.Constant(value=1.0))
models += [
nn.Linear(
64, 128, weight_attr=weight_attr, bias_attr=bias_attr)
]
models += [nn.LayerNorm(128)]
models += [nn.Linear(128, 256)]
models = ofa_super.convert(models)
with supernet(expand_ratio=(1, 2, 4)) as ofa_super:
models1 = []
models1 += [nn.Linear(256, 256)]
models1 = ofa_super.convert(models1)
models += models1
self.models = paddle.nn.Sequential(*models)
def __init__(self):
super(ModelConv, self).__init__()
with supernet(kernel_size=(3, 5, 7),
channel=((4, 8, 12), (8, 12, 16), (8, 12, 16),
(8, 12, 16))) as ofa_super:
models = []
models += [nn.Conv2D(3, 4, 3, padding=1)]
models += [nn.InstanceNorm(4)]
models += [ReLU()]
models += [nn.Conv2D(4, 4, 3, groups=4)]
models += [nn.InstanceNorm(4)]
models += [ReLU()]
models += [
nn.Conv2DTranspose(4,
4,
3,
groups=4,
padding=1,
use_cudnn=True)
]
models += [nn.BatchNorm(4)]
models += [ReLU()]
models += [nn.Conv2D(4, 3, 3)]
models += [ReLU()]
models = ofa_super.convert(models)
models += [
Block(SuperSeparableConv2D(3,
6,
1,
padding=1,
candidate_config={'channel': (3, 6)}),
fixed=True)
]
with supernet(kernel_size=(3, 5, 7),
expand_ratio=(1, 2, 4)) as ofa_super:
models1 = []
models1 += [nn.Conv2D(6, 4, 3)]
models1 += [nn.BatchNorm(4)]
models1 += [ReLU()]
models1 += [nn.Conv2D(4, 4, 3, groups=2)]
models1 += [nn.InstanceNorm(4)]
models1 += [ReLU()]
models1 += [nn.Conv2DTranspose(4, 4, 3, groups=2)]
models1 += [nn.BatchNorm(4)]
models1 += [ReLU()]
models1 += [nn.Conv2DTranspose(4, 4, 3)]
models1 += [nn.BatchNorm(4)]
models1 += [ReLU()]
models1 = ofa_super.convert(models1)
models += models1
self.models = paddle.nn.Sequential(*models)
def __init__(self):
super(ModelLinear2, self).__init__()
with supernet(expand_ratio=None) as ofa_super:
models = []
models += [
nn.Embedding(
num_embeddings=64,
embedding_dim=64,
weight_attr=paddle.ParamAttr(name='emb'))
]
models += [
nn.Linear(
64,
128,
weight_attr=paddle.ParamAttr(name='fc1_w'),
bias_attr=paddle.ParamAttr(name='fc1_b'))
]
models += [
nn.LayerNorm(
128,
weight_attr=paddle.ParamAttr(name='ln1_w'),
bias_attr=paddle.ParamAttr(name='ln1_b'))
]
models += [nn.Linear(128, 256)]
models = ofa_super.convert(models)
self.models = paddle.nn.Sequential(*models)
def setUp(self):
model = ModelShortcut()
sp_net_config = supernet(expand_ratio=[0.5, 1.0])
self.model = Convert(sp_net_config).convert(model)
self.images = paddle.randn(shape=[2, 3, 32, 32], dtype='float32')
self.init_config()
self.ofa_model = OFA(self.model, run_config=self.run_config)
self.ofa_model._clear_search_space(self.images)
def __init__(self):
super(ModelConv2, self).__init__()
with supernet(expand_ratio=(1, 2, 4)) as ofa_super:
models = []
models += [
nn.Conv2DTranspose(
4, 4, 3, weight_attr=paddle.ParamAttr(name='conv1_w'))
]
models += [
nn.BatchNorm2D(
4,
weight_attr=paddle.ParamAttr(name='bn1_w'),
bias_attr=paddle.ParamAttr(name='bn1_b'))
]
models += [ReLU()]
models += [nn.Conv2D(4, 4, 3)]
models += [nn.BatchNorm2D(4)]
models += [ReLU()]
models = ofa_super.convert(models)
with supernet(channel=((4, 6, 8), (4, 6, 8))) as ofa_super:
models1 = []
models1 += [nn.Conv2DTranspose(4, 4, 3)]
models1 += [nn.BatchNorm2D(4)]
models1 += [ReLU()]
models1 += [nn.Conv2DTranspose(4, 4, 3)]
models1 += [nn.BatchNorm2D(4)]
models1 += [ReLU()]
models1 = ofa_super.convert(models1)
models += models1
with supernet(kernel_size=(3, 5, 7)) as ofa_super:
models2 = []
models2 += [nn.Conv2D(4, 4, 3)]
models2 += [nn.BatchNorm2D(4)]
models2 += [ReLU()]
models2 += [nn.Conv2DTranspose(4, 4, 3)]
models2 += [nn.BatchNorm2D(4)]
models2 += [ReLU()]
models2 += [nn.Conv2D(4, 4, 3)]
models2 += [nn.BatchNorm2D(4)]
models2 += [ReLU()]
models2 = ofa_super.convert(models2)
models += models2
self.models = paddle.nn.Sequential(*models)
def __init__(self):
super(ModelLinear, self).__init__()
with supernet(expand_ratio=(1.0, 2.0, 4.0)) as ofa_super:
models = []
models += [nn.Embedding(num_embeddings=64, embedding_dim=64)]
models += [nn.Linear(64, 128)]
models += [nn.LayerNorm(128)]
models += [nn.Linear(128, 256)]
models = ofa_super.convert(models)
with supernet(expand_ratio=(1, 2, 4)) as ofa_super:
models1 = []
models1 += [nn.Linear(256, 256)]
models1 = ofa_super.convert(models1)
models += models1
self.models = paddle.nn.Sequential(*models)
def _dynabert_init(task_name, model, eval_dataloader, criterion,
width_mult_list):
from paddleslim.nas.ofa.convert_super import Convert, supernet
from paddleslim.nas.ofa import OFA, DistillConfig, utils
# Step1: Initialize a dictionary to save the weights from the origin model.
origin_weights = model.state_dict()
# Step2: Define teacher model.
teacher_model = copy.deepcopy(model)
# Step3: Convert origin model to supernet.
sp_config = supernet(expand_ratio=[1.0])
model = Convert(sp_config).convert(model)
# Use weights saved in the dictionary to initialize supernet.
utils.set_state_dict(model, origin_weights)
del origin_weights
# Step4: Config about distillation.
mapping_layers = [model.base_model_prefix + '.embeddings']
for idx in range(model.base_model.config['num_hidden_layers']):
mapping_layers.append(model.base_model_prefix +
'.encoder.layers.{}'.format(idx))
default_distill_config = {
'lambda_distill': 0.1,
'teacher_model': teacher_model,
'mapping_layers': mapping_layers,
}
distill_config = DistillConfig(**default_distill_config)
# Step5: Config in supernet training.
ofa_model = OFA(model,
distill_config=distill_config,
elastic_order=['width'])
# Step6: Calculate the importance of neurons and head,
# and then reorder them according to the importance.
# NOTE: Importing `nlp_utils` would rewrite `forward` function of
# TransformerEncoder, TransformerEncoderLayer, MultiHeadAttention and
# `_prepare_qkv` function of MultiHeadAttention.
from paddleslim.nas.ofa.utils import nlp_utils
head_importance, neuron_importance = compute_neuron_head_importance(
task_name=task_name,
model=ofa_model.model,
data_loader=eval_dataloader,
loss_fct=criterion,
num_layers=model.base_model.config['num_hidden_layers'],
num_heads=model.base_model.config['num_attention_heads'])
reorder_neuron_head(ofa_model.model, head_importance, neuron_importance)
if paddle.distributed.get_world_size() > 1:
ofa_model.model = paddle.DataParallel(ofa_model.model)
return ofa_model, teacher_model
def __init__(self):
super(ModelLinear1, self).__init__()
with supernet(channel=((64, 128, 256), (64, 128, 256),
(64, 128, 256))) as ofa_super:
models = []
models += [nn.Embedding(num_embeddings=64, embedding_dim=64)]
models += [nn.Linear(64, 128)]
models += [nn.LayerNorm(128)]
models += [nn.Linear(128, 256)]
models = ofa_super.convert(models)
with supernet(channel=((64, 128, 256), )) as ofa_super:
models1 = []
models1 += [nn.Linear(256, 256)]
models1 = ofa_super.convert(models1)
models += models1
self.models = paddle.nn.Sequential(*models)
def __init__(self):
super(ModelLinear2, self).__init__()
with supernet(expand_ratio=None) as ofa_super:
models = []
models += [nn.Embedding(num_embeddings=64, embedding_dim=64)]
models += [nn.Linear(64, 128)]
models += [nn.LayerNorm(128)]
models += [nn.Linear(128, 256)]
models = ofa_super.convert(models)
self.models = paddle.nn.Sequential(*models)
def __init__(self):
super(ModelLinear, self).__init__()
models = []
with supernet(expand_ratio=(1, 2, 4)) as ofa_super:
models1 = []
models1 += [nn.Linear(64, 128)]
models1 += [nn.Linear(128, 256)]
models1 = ofa_super.convert(models1)
models += models1
with supernet(channel=((64, 128, 256), (64, 128, 256))) as ofa_super:
models1 = []
models1 += [nn.Linear(256, 128)]
models1 += [nn.Linear(128, 256)]
models1 = ofa_super.convert(models1)
models += models1
self.models = paddle.nn.Sequential(*models)
def __init__(self):
super(ModelLinear, self).__init__()
models = []
with supernet(expand_ratio=(1, 2, 4)) as ofa_super:
models1 = []
models1 += [nn.Embedding(size=(64, 64))]
models1 += [nn.Linear(64, 128)]
models1 += [nn.LayerNorm(128)]
models1 += [nn.Linear(128, 256)]
models1 = ofa_super.convert(models1)
models += models1
self.models = paddle.nn.Sequential(*models)
def setUp(self):
model = ModelInputDict()
sp_net_config = supernet(expand_ratio=[0.5, 1.0])
self.model = Convert(sp_net_config).convert(model)
self.images = paddle.randn(shape=[2, 3, 32, 32], dtype='float32')
self.images2 = {
'data': paddle.randn(shape=[2, 12, 32, 32], dtype='float32')
}
default_run_config = {'skip_layers': ['conv1.0', 'conv2.0']}
self.run_config = RunConfig(**default_run_config)
self.ofa_model = OFA(self.model, run_config=self.run_config)
self.ofa_model._clear_search_space(self.images, data=self.images2)
def do_train(args):
paddle.set_device("gpu" if args.n_gpu else "cpu")
args.model_type = args.model_type.lower()
model_class, tokenizer_class = MODEL_CLASSES[args.model_type]
config_path = os.path.join(args.model_name_or_path, 'model_config.json')
cfg_dict = dict(json.loads(open(config_path).read()))
num_labels = cfg_dict['num_classes']
model = model_class.from_pretrained(args.model_name_or_path,
num_classes=num_labels)
origin_model = model_class.from_pretrained(args.model_name_or_path,
num_classes=num_labels)
sp_config = supernet(expand_ratio=[1.0, args.width_mult])
model = Convert(sp_config).convert(model)
ofa_model = OFA(model)
sd = paddle.load(
os.path.join(args.model_name_or_path, 'model_state.pdparams'))
ofa_model.model.set_state_dict(sd)
best_config = utils.dynabert_config(ofa_model, args.width_mult)
ofa_model.export(best_config,
input_shapes=[[1, args.max_seq_length],
[1, args.max_seq_length]],
input_dtypes=['int64', 'int64'],
origin_model=origin_model)
for name, sublayer in origin_model.named_sublayers():
if isinstance(sublayer, paddle.nn.MultiHeadAttention):
sublayer.num_heads = int(args.width_mult * sublayer.num_heads)
output_dir = os.path.join(args.sub_model_output_dir,
"model_width_%.5f" % args.width_mult)
if not os.path.exists(output_dir):
os.makedirs(output_dir)
model_to_save = origin_model
model_to_save.save_pretrained(output_dir)
if args.static_sub_model != None:
export_static_model(origin_model, args.static_sub_model,
args.max_seq_length)
def do_train(args):
paddle.set_device(args.device)
if paddle.distributed.get_world_size() > 1:
paddle.distributed.init_parallel_env()
set_seed(args)
args.task_name = args.task_name.lower()
metric_class = METRIC_CLASSES[args.task_name]
args.model_type = args.model_type.lower()
model_class, tokenizer_class = MODEL_CLASSES[args.model_type]
train_ds = load_dataset('clue', args.task_name, splits='train')
tokenizer = tokenizer_class.from_pretrained(args.model_name_or_path)
trans_func = partial(convert_example,
label_list=train_ds.label_list,
tokenizer=tokenizer,
max_seq_length=args.max_seq_length)
train_ds = train_ds.map(trans_func, lazy=True)
train_batch_sampler = paddle.io.DistributedBatchSampler(
train_ds, batch_size=args.batch_size, shuffle=True)
batchify_fn = lambda samples, fn=Tuple(
Pad(axis=0, pad_val=tokenizer.pad_token_id), # input
Pad(axis=0, pad_val=tokenizer.pad_token_type_id), # segment
Stack(dtype="int64" if train_ds.label_list else "float32") # label
): fn(samples)
train_data_loader = DataLoader(dataset=train_ds,
batch_sampler=train_batch_sampler,
collate_fn=batchify_fn,
num_workers=0,
return_list=True)
dev_ds = load_dataset('clue', args.task_name, splits='dev')
dev_ds = dev_ds.map(trans_func, lazy=True)
dev_batch_sampler = paddle.io.BatchSampler(dev_ds,
batch_size=args.batch_size,
shuffle=False)
dev_data_loader = DataLoader(dataset=dev_ds,
batch_sampler=dev_batch_sampler,
collate_fn=batchify_fn,
num_workers=0,
return_list=True)
num_labels = 1 if train_ds.label_list == None else len(train_ds.label_list)
model = model_class.from_pretrained(args.model_name_or_path,
num_classes=num_labels)
# Step1: Initialize a dictionary to save the weights from the origin PPMiniLM model.
origin_weights = model.state_dict()
# Step2: Convert origin model to supernet.
sp_config = supernet(expand_ratio=[1.0])
model = Convert(sp_config).convert(model)
# Use weights saved in the dictionary to initialize supernet.
utils.set_state_dict(model, origin_weights)
del origin_weights
super_sd = paddle.load(
os.path.join(args.model_name_or_path, 'model_state.pdparams'))
model.set_state_dict(super_sd)
# Step3: Define teacher model.
teacher_model = model_class.from_pretrained(args.model_name_or_path,
num_classes=num_labels)
# Step4: Config about distillation.
mapping_layers = ['ppminilm.embeddings']
for idx in range(model.ppminilm.config['num_hidden_layers']):
mapping_layers.append('ppminilm.encoder.layers.{}'.format(idx))
default_distill_config = {
'lambda_distill': 0.1,
'teacher_model': teacher_model,
'mapping_layers': mapping_layers,
}
distill_config = DistillConfig(**default_distill_config)
# Step5: Config in supernet training.
ofa_model = OFA(model,
distill_config=distill_config,
elastic_order=['width'])
criterion = paddle.nn.loss.CrossEntropyLoss(
) if train_ds.label_list else paddle.nn.loss.MSELoss()
metric = metric_class()
#### Step6: Calculate the importance of neurons and head,
#### and then reorder them according to the importance.
head_importance, neuron_importance = nlp_utils.compute_neuron_head_importance(
args.task_name,
ofa_model.model,
dev_data_loader,
loss_fct=criterion,
num_layers=model.ppminilm.config['num_hidden_layers'],
num_heads=model.ppminilm.config['num_attention_heads'])
reorder_neuron_head(ofa_model.model, head_importance, neuron_importance)
if paddle.distributed.get_world_size() > 1:
ofa_model.model = paddle.DataParallel(ofa_model.model)
if args.max_steps > 0:
num_training_steps = args.max_steps
num_train_epochs = math.ceil(num_training_steps /
len(train_data_loader))
else:
num_training_steps = len(train_data_loader) * args.num_train_epochs
num_train_epochs = args.num_train_epochs
warmup = args.warmup_steps if args.warmup_steps > 0 else args.warmup_proportion
lr_scheduler = LinearDecayWithWarmup(args.learning_rate,
num_training_steps, warmup)
# Generate parameter names needed to perform weight decay.
# All bias and LayerNorm parameters are excluded.
decay_params = [
p.name for n, p in model.named_parameters()
if not any(nd in n for nd in ["bias", "norm"])
]
optimizer = paddle.optimizer.AdamW(
learning_rate=lr_scheduler,
beta1=0.9,
beta2=0.999,
epsilon=args.adam_epsilon,
parameters=model.parameters(),
weight_decay=args.weight_decay,
apply_decay_param_fun=lambda x: x in decay_params,
grad_clip=nn.ClipGradByGlobalNorm(args.max_grad_norm))
global_step = 0
tic_train = time.time()
best_res = 0.0
for epoch in range(num_train_epochs):
# Step7: Set current epoch and task.
ofa_model.set_epoch(epoch)
ofa_model.set_task('width')
for step, batch in enumerate(train_data_loader):
global_step += 1
input_ids, segment_ids, labels = batch
for width_mult in args.width_mult_list:
# Step8: Broadcast supernet config from width_mult,
# and use this config in supernet training.
net_config = utils.dynabert_config(ofa_model, width_mult)
ofa_model.set_net_config(net_config)
logits, teacher_logits = ofa_model(input_ids,
segment_ids,
attention_mask=[None, None])
rep_loss = ofa_model.calc_distill_loss()
logit_loss = soft_cross_entropy(logits,
teacher_logits.detach())
loss = rep_loss + args.lambda_logit * logit_loss
loss.backward()
optimizer.step()
lr_scheduler.step()
optimizer.clear_grad()
if global_step % args.logging_steps == 0:
logger.info(
"global step %d, epoch: %d, batch: %d, loss: %f, speed: %.2f step/s"
% (global_step, epoch, step, loss, args.logging_steps /
(time.time() - tic_train)))
tic_train = time.time()
if global_step % args.save_steps == 0 or global_step == num_training_steps:
tic_eval = time.time()
evaluate(teacher_model,
metric,
dev_data_loader,
width_mult=100)
print("eval done total : %s s" % (time.time() - tic_eval))
for idx, width_mult in enumerate(args.width_mult_list):
net_config = utils.dynabert_config(ofa_model, width_mult)
ofa_model.set_net_config(net_config)
tic_eval = time.time()
res = evaluate(ofa_model, metric, dev_data_loader,
width_mult)
print("eval done total : %s s" % (time.time() - tic_eval))
if best_res < res:
output_dir = args.output_dir
if not os.path.exists(output_dir):
os.makedirs(output_dir)
# need better way to get inner model of DataParallel
model_to_save = model._layers if isinstance(
model, paddle.DataParallel) else model
model_to_save.save_pretrained(output_dir)
tokenizer.save_pretrained(output_dir)
best_res = res
if global_step >= num_training_steps:
print("best_res: ", best_res)
return
print("best_res: ", best_res)
def setUp(self):
model = ModelV1(name='export')
sp_net_config = supernet(expand_ratio=[0.25, 0.5, 1.0])
self.model = Convert(sp_net_config).convert(model)
self.images = paddle.randn(shape=[2, 3, 32, 32], dtype='float32')
self.ofa_model = OFA(self.model)
def do_train(args):
paddle.set_device("gpu" if args.n_gpu else "cpu")
args.model_type = args.model_type.lower()
model_class, tokenizer_class = MODEL_CLASSES[args.model_type]
config_path = os.path.join(args.model_name_or_path, 'model_config.json')
cfg_dict = dict(json.loads(open(config_path).read()))
kept_layers_index = {}
if args.depth_mult < 1.0:
depth = round(cfg_dict["init_args"][0]['num_hidden_layers'] *
args.depth_mult)
cfg_dict["init_args"][0]['num_hidden_layers'] = depth
for idx, i in enumerate(range(1, depth + 1)):
kept_layers_index[idx] = math.floor(i / args.depth_mult) - 1
os.rename(config_path, config_path + '_bak')
with open(config_path, "w", encoding="utf-8") as f:
f.write(json.dumps(cfg_dict, ensure_ascii=False))
num_labels = cfg_dict['num_classes']
model = model_class.from_pretrained(
args.model_name_or_path, num_classes=num_labels)
origin_model = model_class.from_pretrained(
args.model_name_or_path, num_classes=num_labels)
os.rename(config_path + '_bak', config_path)
sp_config = supernet(expand_ratio=[1.0, args.width_mult])
model = Convert(sp_config).convert(model)
ofa_model = OFA(model)
sd = paddle.load(
os.path.join(args.model_name_or_path, 'model_state.pdparams'))
if len(kept_layers_index) == 0:
ofa_model.model.set_state_dict(sd)
else:
for name, params in ofa_model.model.named_parameters():
if 'encoder' not in name:
params.set_value(sd[name])
else:
idx = int(name.strip().split('.')[3])
mapping_name = name.replace(
'.' + str(idx) + '.',
'.' + str(kept_layers_index[idx]) + '.')
params.set_value(sd[mapping_name])
best_config = utils.dynabert_config(ofa_model, args.width_mult)
for name, sublayer in ofa_model.model.named_sublayers():
if isinstance(sublayer, paddle.nn.MultiHeadAttention):
sublayer.num_heads = int(args.width_mult * sublayer.num_heads)
ofa_model.export(
best_config,
input_shapes=[[1, args.max_seq_length], [1, args.max_seq_length]],
input_dtypes=['int64', 'int64'],
origin_model=origin_model)
for name, sublayer in origin_model.named_sublayers():
if isinstance(sublayer, paddle.nn.MultiHeadAttention):
sublayer.num_heads = int(args.width_mult * sublayer.num_heads)
output_dir = os.path.join(args.sub_model_output_dir,
"model_width_%.5f" % args.width_mult)
if not os.path.exists(output_dir):
os.makedirs(output_dir)
model_to_save = origin_model
model_to_save.save_pretrained(output_dir)
if args.static_sub_model != None:
export_static_model(origin_model, args.static_sub_model,
args.max_seq_length)
def setUp(self):
model = ModelElementwise()
sp_net_config = supernet(expand_ratio=[0.25, 0.5, 1.0])
self.model = Convert(sp_net_config).convert(model)
self.images = paddle.randn(shape=[2, 3, 32, 32], dtype='float32')
def test_convert(self):
sp_net_config = supernet(expand_ratio=[1, 2, 4])
sp_model = Convert(sp_net_config).convert(self.model)
def test_convert(self):
sp_net_config = supernet(kernel_size=(3, 5, 7), expand_ratio=[1, 2, 4])
sp_model = Convert(sp_net_config).convert(self.model)
assert len(sp_model.sublayers()) == 151
def setUp(self):
self.images = paddle.randn(shape=[1, 3, 224, 224], dtype='float32')
model = ModelMultiExit()
sp_net_config = supernet(expand_ratio=[0.25, 0.5, 1.0])
self.model = Convert(sp_net_config).convert(model)
def setUp(self):
model = resnet50()
sp_net_config = supernet(expand_ratio=[0.25, 0.5, 1.0])
self.model = Convert(sp_net_config).convert(model)
self.images = paddle.randn(shape=[2, 3, 224, 224], dtype='float32')
self._test_clear_search_space()
def do_train(args):
paddle.set_device(args.device)
if paddle.distributed.get_world_size() > 1:
paddle.distributed.init_parallel_env()
set_seed(args)
args.task_name = args.task_name.lower()
metric_class = METRIC_CLASSES[args.task_name]
args.model_type = args.model_type.lower()
model_class, tokenizer_class = MODEL_CLASSES[args.model_type]
train_ds = load_dataset('glue', args.task_name, splits="train")
tokenizer = tokenizer_class.from_pretrained(args.model_name_or_path)
trans_func = partial(
convert_example,
tokenizer=tokenizer,
label_list=train_ds.label_list,
max_seq_length=args.max_seq_length)
train_ds = train_ds.map(trans_func, lazy=True)
train_batch_sampler = paddle.io.DistributedBatchSampler(
train_ds, batch_size=args.batch_size, shuffle=True)
batchify_fn = lambda samples, fn=Tuple(
Pad(axis=0, pad_val=tokenizer.pad_token_id), # input
Pad(axis=0, pad_val=tokenizer.pad_token_type_id), # segment
Stack(dtype="int64" if train_ds.label_list else "float32") # label
): fn(samples)
train_data_loader = DataLoader(
dataset=train_ds,
batch_sampler=train_batch_sampler,
collate_fn=batchify_fn,
num_workers=0,
return_list=True)
if args.task_name == "mnli":
dev_ds_matched, dev_ds_mismatched = load_dataset(
'glue', args.task_name, splits=["dev_matched", "dev_mismatched"])
dev_ds_matched = dev_ds_matched.map(trans_func, lazy=True)
dev_ds_mismatched = dev_ds_mismatched.map(trans_func, lazy=True)
dev_batch_sampler_matched = paddle.io.BatchSampler(
dev_ds_matched, batch_size=args.batch_size, shuffle=False)
dev_data_loader_matched = DataLoader(
dataset=dev_ds_matched,
batch_sampler=dev_batch_sampler_matched,
collate_fn=batchify_fn,
num_workers=0,
return_list=True)
dev_batch_sampler_mismatched = paddle.io.BatchSampler(
dev_ds_mismatched, batch_size=args.batch_size, shuffle=False)
dev_data_loader_mismatched = DataLoader(
dataset=dev_ds_mismatched,
batch_sampler=dev_batch_sampler_mismatched,
collate_fn=batchify_fn,
num_workers=0,
return_list=True)
else:
dev_ds = load_dataset('glue', args.task_name, splits='dev')
dev_ds = dev_ds.map(trans_func, lazy=True)
dev_batch_sampler = paddle.io.BatchSampler(
dev_ds, batch_size=args.batch_size, shuffle=False)
dev_data_loader = DataLoader(
dataset=dev_ds,
batch_sampler=dev_batch_sampler,
collate_fn=batchify_fn,
num_workers=0,
return_list=True)
num_labels = 1 if train_ds.label_list == None else len(train_ds.label_list)
# Step1: Initialize the origin BERT model.
model = model_class.from_pretrained(
args.model_name_or_path, num_classes=num_labels)
origin_weights = model.state_dict()
# Step2: Convert origin model to supernet.
sp_config = supernet(expand_ratio=args.width_mult_list)
model = Convert(sp_config).convert(model)
# Use weights saved in the dictionary to initialize supernet.
utils.set_state_dict(model, origin_weights)
# Step3: Define teacher model.
teacher_model = model_class.from_pretrained(
args.model_name_or_path, num_classes=num_labels)
new_dict = utils.utils.remove_model_fn(teacher_model, origin_weights)
teacher_model.set_state_dict(new_dict)
del origin_weights, new_dict
default_run_config = {'elastic_depth': args.depth_mult_list}
run_config = RunConfig(**default_run_config)
# Step4: Config about distillation.
mapping_layers = ['bert.embeddings']
for idx in range(model.bert.config['num_hidden_layers']):
mapping_layers.append('bert.encoder.layers.{}'.format(idx))
default_distill_config = {
'lambda_distill': args.lambda_rep,
'teacher_model': teacher_model,
'mapping_layers': mapping_layers,
}
distill_config = DistillConfig(**default_distill_config)
# Step5: Config in supernet training.
ofa_model = OFA(model,
run_config=run_config,
distill_config=distill_config,
elastic_order=['depth'])
#elastic_order=['width'])
criterion = paddle.nn.CrossEntropyLoss(
) if train_ds.label_list else paddle.nn.MSELoss()
metric = metric_class()
if args.task_name == "mnli":
dev_data_loader = (dev_data_loader_matched, dev_data_loader_mismatched)
if paddle.distributed.get_world_size() > 1:
ofa_model.model = paddle.DataParallel(
ofa_model.model, find_unused_parameters=True)
if args.max_steps > 0:
num_training_steps = args.max_steps
num_train_epochs = math.ceil(num_training_steps /
len(train_data_loader))
else:
num_training_steps = len(train_data_loader) * args.num_train_epochs
num_train_epochs = args.num_train_epochs
lr_scheduler = LinearDecayWithWarmup(args.learning_rate, num_training_steps,
args.warmup_steps)
# Generate parameter names needed to perform weight decay.
# All bias and LayerNorm parameters are excluded.
decay_params = [
p.name for n, p in model.named_parameters()
if not any(nd in n for nd in ["bias", "norm"])
]
optimizer = paddle.optimizer.AdamW(
learning_rate=lr_scheduler,
epsilon=args.adam_epsilon,
parameters=ofa_model.model.parameters(),
weight_decay=args.weight_decay,
apply_decay_param_fun=lambda x: x in decay_params)
global_step = 0
tic_train = time.time()
for epoch in range(num_train_epochs):
# Step6: Set current epoch and task.
ofa_model.set_epoch(epoch)
ofa_model.set_task('depth')
for step, batch in enumerate(train_data_loader):
global_step += 1
input_ids, segment_ids, labels = batch
for depth_mult in args.depth_mult_list:
for width_mult in args.width_mult_list:
# Step7: Broadcast supernet config from width_mult,
# and use this config in supernet training.
net_config = utils.dynabert_config(ofa_model, width_mult,
depth_mult)
ofa_model.set_net_config(net_config)
logits, teacher_logits = ofa_model(
input_ids, segment_ids, attention_mask=[None, None])
rep_loss = ofa_model.calc_distill_loss()
if args.task_name == 'sts-b':
logit_loss = 0.0
else:
logit_loss = soft_cross_entropy(logits,
teacher_logits.detach())
loss = rep_loss + args.lambda_logit * logit_loss
loss.backward()
optimizer.step()
lr_scheduler.step()
ofa_model.model.clear_gradients()
if global_step % args.logging_steps == 0:
if paddle.distributed.get_rank() == 0:
logger.info(
"global step %d, epoch: %d, batch: %d, loss: %f, speed: %.2f step/s"
% (global_step, epoch, step, loss,
args.logging_steps / (time.time() - tic_train)))
tic_train = time.time()
if global_step % args.save_steps == 0:
if args.task_name == "mnli":
evaluate(
teacher_model,
criterion,
metric,
dev_data_loader_matched,
width_mult=100)
evaluate(
teacher_model,
criterion,
metric,
dev_data_loader_mismatched,
width_mult=100)
else:
evaluate(
teacher_model,
criterion,
metric,
dev_data_loader,
width_mult=100)
for depth_mult in args.depth_mult_list:
for width_mult in args.width_mult_list:
net_config = utils.dynabert_config(
ofa_model, width_mult, depth_mult)
ofa_model.set_net_config(net_config)
tic_eval = time.time()
if args.task_name == "mnli":
acc = evaluate(ofa_model, criterion, metric,
dev_data_loader_matched, width_mult,
depth_mult)
evaluate(ofa_model, criterion, metric,
dev_data_loader_mismatched, width_mult,
depth_mult)
print("eval done total : %s s" %
(time.time() - tic_eval))
else:
acc = evaluate(ofa_model, criterion, metric,
dev_data_loader, width_mult,
depth_mult)
print("eval done total : %s s" %
(time.time() - tic_eval))
if paddle.distributed.get_rank() == 0:
output_dir = os.path.join(args.output_dir,
"model_%d" % global_step)
if not os.path.exists(output_dir):
os.makedirs(output_dir)
# need better way to get inner model of DataParallel
model_to_save = model._layers if isinstance(
model, paddle.DataParallel) else model
model_to_save.save_pretrained(output_dir)
tokenizer.save_pretrained(output_dir)
if global_step >= num_training_steps:
return
train_ds.data_shapes = shapes
train_ds.data_types = types
dev_ds.data_shapes = shapes
dev_ds.data_types = types
place = F.CUDAPlace(0)
with FD.guard(place):
model = ErnieModelForSequenceClassification.from_pretrained(
args.from_pretrained, num_labels=3, name='')
setattr(model, 'return_additional_info', True)
origin_weights = {}
for name, param in model.named_parameters():
origin_weights[name] = param
sp_config = supernet(expand_ratio=args.width_mult_list)
model = Convert(sp_config).convert(model)
utils.set_state_dict(model, origin_weights)
del origin_weights
teacher_model = ErnieModelForSequenceClassification.from_pretrained(
args.from_pretrained, num_labels=3, name='teacher')
setattr(teacher_model, 'return_additional_info', True)
default_run_config = {
'n_epochs': [[4 * args.epoch], [6 * args.epoch]],
'init_learning_rate': [[args.lr], [args.lr]],
'elastic_depth': args.depth_mult_list,
'dynamic_batch_size': [[1, 1], [1, 1]]
}
run_config = RunConfig(**default_run_config)
channel_optional.append([4, 8, 12, 16])
# channel_optional.append([12, 16])
elif 7 < i <= 14:
channel_optional.append([4, 8, 12, 16, 20, 24, 28, 32])
# channel_optional.append([20, 24, 28, 32])
elif 14 < i <= 21:
channel_optional.append(
[4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64])
# channel_optional.append([36, 40, 44, 48, 52, 56,60, 64])
else:
channel_optional.append(
[4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64])
# channel_optional.append([36, 40, 44, 48, 52, 56,60, 64])
distill_config = DistillConfig(teacher_model=net2)
sp_net_config = supernet(channel=channel_optional)
sp_model = Convert(sp_net_config).convert(net)
ofa_net = OFA(sp_model, distill_config=distill_config)
ofa_net.set_task('channel')
model = paddle.Model(ofa_net)
MAX_EPOCH = 300
LR = 0.1
WEIGHT_DECAY = 5e-4
MOMENTUM = 0.9
BATCH_SIZE = 128
CIFAR_MEAN = [0.5071, 0.4865, 0.4409]
CIFAR_STD = [0.1942, 0.1918, 0.1958]
DATA_FILE = './data/data76994/cifar-100-python.tar.gz'
def test_set_state_dict(self):
sp_net_config = supernet(expand_ratio=[0.5, 1.0])
sp_model = Convert(sp_net_config).convert(self.model)
set_state_dict(sp_model, self.origin_weights)
def test_dynabert(self):
self.model = TestModel()
sp_net_config = supernet(expand_ratio=[0.5, 1.0])
self.model = Convert(sp_net_config).convert(self.model)
ofa_model = OFA(self.model)
config = dynabert_config(ofa_model, 0.5)
def do_train(args):
paddle.set_device("gpu" if args.n_gpu else "cpu")
if paddle.distributed.get_world_size() > 1:
paddle.distributed.init_parallel_env()
set_seed(args)
args.task_name = args.task_name.lower()
dataset_class, metric_class = TASK_CLASSES[args.task_name]
args.model_type = args.model_type.lower()
model_class, tokenizer_class = MODEL_CLASSES[args.model_type]
train_ds = dataset_class.get_datasets(['train'])
tokenizer = tokenizer_class.from_pretrained(args.model_name_or_path)
trans_func = partial(convert_example,
tokenizer=tokenizer,
label_list=train_ds.get_labels(),
max_seq_length=args.max_seq_length)
train_ds = train_ds.apply(trans_func, lazy=True)
train_batch_sampler = paddle.io.DistributedBatchSampler(
train_ds, batch_size=args.batch_size, shuffle=True)
batchify_fn = lambda samples, fn=Tuple(
Pad(axis=0, pad_val=tokenizer.pad_token_id), # input
Pad(axis=0, pad_val=tokenizer.pad_token_id), # segment
Stack(), # length
Stack(dtype="int64" if train_ds.get_labels() else "float32") # label
): [data for i, data in enumerate(fn(samples)) if i != 2]
train_data_loader = DataLoader(dataset=train_ds,
batch_sampler=train_batch_sampler,
collate_fn=batchify_fn,
num_workers=0,
return_list=True)
if args.task_name == "mnli":
dev_dataset_matched, dev_dataset_mismatched = dataset_class.get_datasets(
["dev_matched", "dev_mismatched"])
dev_dataset_matched = dev_dataset_matched.apply(trans_func, lazy=True)
dev_dataset_mismatched = dev_dataset_mismatched.apply(trans_func,
lazy=True)
dev_batch_sampler_matched = paddle.io.BatchSampler(
dev_dataset_matched, batch_size=args.batch_size, shuffle=False)
dev_data_loader_matched = DataLoader(
dataset=dev_dataset_matched,
batch_sampler=dev_batch_sampler_matched,
collate_fn=batchify_fn,
num_workers=0,
return_list=True)
dev_batch_sampler_mismatched = paddle.io.BatchSampler(
dev_dataset_mismatched, batch_size=args.batch_size, shuffle=False)
dev_data_loader_mismatched = DataLoader(
dataset=dev_dataset_mismatched,
batch_sampler=dev_batch_sampler_mismatched,
collate_fn=batchify_fn,
num_workers=0,
return_list=True)
else:
dev_dataset = dataset_class.get_datasets(["dev"])
dev_dataset = dev_dataset.apply(trans_func, lazy=True)
dev_batch_sampler = paddle.io.BatchSampler(dev_dataset,
batch_size=args.batch_size,
shuffle=False)
dev_data_loader = DataLoader(dataset=dev_dataset,
batch_sampler=dev_batch_sampler,
collate_fn=batchify_fn,
num_workers=0,
return_list=True)
num_labels = 1 if train_ds.get_labels() == None else len(
train_ds.get_labels())
model = model_class.from_pretrained(args.model_name_or_path,
num_classes=num_labels)
if paddle.distributed.get_world_size() > 1:
model = paddle.DataParallel(model)
# Step1: Initialize a dictionary to save the weights from the origin BERT model.
origin_weights = {}
for name, param in model.named_parameters():
origin_weights[name] = param
# Step2: Convert origin model to supernet.
sp_config = supernet(expand_ratio=args.width_mult_list)
model = Convert(sp_config).convert(model)
# Use weights saved in the dictionary to initialize supernet.
utils.set_state_dict(model, origin_weights)
del origin_weights
# Step3: Define teacher model.
teacher_model = model_class.from_pretrained(args.model_name_or_path,
num_classes=num_labels)
# Step4: Config about distillation.
mapping_layers = ['bert.embeddings']
for idx in range(model.bert.config['num_hidden_layers']):
mapping_layers.append('bert.encoder.layers.{}'.format(idx))
default_distill_config = {
'lambda_distill': 0.1,
'teacher_model': teacher_model,
'mapping_layers': mapping_layers,
}
distill_config = DistillConfig(**default_distill_config)
# Step5: Config in supernet training.
ofa_model = OFA(model,
distill_config=distill_config,
elastic_order=['width'])
criterion = paddle.nn.loss.CrossEntropyLoss() if train_ds.get_labels(
) else paddle.nn.loss.MSELoss()
metric = metric_class()
if args.task_name == "mnli":
dev_data_loader = (dev_data_loader_matched, dev_data_loader_mismatched)
# Step6: Calculate the importance of neurons and head,
# and then reorder them according to the importance.
head_importance, neuron_importance = utils.compute_neuron_head_importance(
args.task_name,
ofa_model.model,
dev_data_loader,
loss_fct=criterion,
num_layers=model.bert.config['num_hidden_layers'],
num_heads=model.bert.config['num_attention_heads'])
reorder_neuron_head(ofa_model.model, head_importance, neuron_importance)
lr_scheduler = paddle.optimizer.lr.LambdaDecay(
args.learning_rate,
lambda current_step, num_warmup_steps=args.warmup_steps,
num_training_steps=args.max_steps if args.max_steps > 0 else
(len(train_data_loader) * args.num_train_epochs): float(
current_step) / float(max(1, num_warmup_steps))
if current_step < num_warmup_steps else max(
0.0,
float(num_training_steps - current_step) / float(
max(1, num_training_steps - num_warmup_steps))))
optimizer = paddle.optimizer.AdamW(
learning_rate=lr_scheduler,
epsilon=args.adam_epsilon,
parameters=ofa_model.model.parameters(),
weight_decay=args.weight_decay,
apply_decay_param_fun=lambda x: x in [
p.name for n, p in ofa_model.model.named_parameters()
if not any(nd in n for nd in ["bias", "norm"])
])
global_step = 0
tic_train = time.time()
for epoch in range(args.num_train_epochs):
# Step7: Set current epoch and task.
ofa_model.set_epoch(epoch)
ofa_model.set_task('width')
for step, batch in enumerate(train_data_loader):
global_step += 1
input_ids, segment_ids, labels = batch
for width_mult in args.width_mult_list:
# Step8: Broadcast supernet config from width_mult,
# and use this config in supernet training.
net_config = apply_config(ofa_model, width_mult)
ofa_model.set_net_config(net_config)
logits, teacher_logits = ofa_model(input_ids,
segment_ids,
attention_mask=[None, None])
rep_loss = ofa_model.calc_distill_loss()
if args.task_name == 'sts-b':
logit_loss = 0.0
else:
logit_loss = soft_cross_entropy(logits,
teacher_logits.detach())
loss = rep_loss + args.lambda_logit * logit_loss
loss.backward()
optimizer.step()
lr_scheduler.step()
ofa_model.model.clear_gradients()
if global_step % args.logging_steps == 0:
if (not args.n_gpu > 1) or paddle.distributed.get_rank() == 0:
logger.info(
"global step %d, epoch: %d, batch: %d, loss: %f, speed: %.2f step/s"
% (global_step, epoch, step, loss, args.logging_steps /
(time.time() - tic_train)))
tic_train = time.time()
if global_step % args.save_steps == 0:
if args.task_name == "mnli":
evaluate(teacher_model,
criterion,
metric,
dev_data_loader_matched,
width_mult=100)
evaluate(teacher_model,
criterion,
metric,
dev_data_loader_mismatched,
width_mult=100)
else:
evaluate(teacher_model,
criterion,
metric,
dev_data_loader,
width_mult=100)
for idx, width_mult in enumerate(args.width_mult_list):
net_config = apply_config(ofa_model, width_mult)
ofa_model.set_net_config(net_config)
tic_eval = time.time()
if args.task_name == "mnli":
acc = evaluate(ofa_model, criterion, metric,
dev_data_loader_matched, width_mult)
evaluate(ofa_model, criterion, metric,
dev_data_loader_mismatched, width_mult)
print("eval done total : %s s" %
(time.time() - tic_eval))
else:
acc = evaluate(ofa_model, criterion, metric,
dev_data_loader, width_mult)
print("eval done total : %s s" %
(time.time() - tic_eval))
if (not args.n_gpu > 1
) or paddle.distributed.get_rank() == 0:
output_dir = os.path.join(args.output_dir,
"model_%d" % global_step)
if not os.path.exists(output_dir):
os.makedirs(output_dir)
# need better way to get inner model of DataParallel
model_to_save = model._layers if isinstance(
model, paddle.DataParallel) else model
model_to_save.save_pretrained(output_dir)
tokenizer.save_pretrained(output_dir)
def __call__(self, model, param_state_dict):
paddleslim = try_import('paddleslim')
from paddleslim.nas.ofa import OFA, RunConfig, utils
from paddleslim.nas.ofa.convert_super import Convert, supernet
task = self.ofa_config['task']
expand_ratio = self.ofa_config['expand_ratio']
skip_neck = self.ofa_config['skip_neck']
skip_head = self.ofa_config['skip_head']
run_config = self.ofa_config['RunConfig']
if 'skip_layers' in run_config:
skip_layers = run_config['skip_layers']
else:
skip_layers = []
# supernet config
sp_config = supernet(expand_ratio=expand_ratio)
# convert to supernet
model = Convert(sp_config).convert(model)
skip_names = []
if skip_neck:
skip_names.append('neck.')
if skip_head:
skip_names.append('head.')
for name, sublayer in model.named_sublayers():
for n in skip_names:
if n in name:
skip_layers.append(name)
run_config['skip_layers'] = skip_layers
run_config = RunConfig(**run_config)
# build ofa model
ofa_model = OFA(model, run_config=run_config)
ofa_model.set_epoch(0)
ofa_model.set_task(task)
input_spec = [{
"image": paddle.ones(
shape=[1, 3, 640, 640], dtype='float32'),
"im_shape": paddle.full(
[1, 2], 640, dtype='float32'),
"scale_factor": paddle.ones(
shape=[1, 2], dtype='float32')
}]
ofa_model._clear_search_space(input_spec=input_spec)
ofa_model._build_ss = True
check_ss = ofa_model._sample_config('expand_ratio', phase=None)
# tokenize the search space
ofa_model.tokenize()
# check token map, search cands and search space
logger.info('Token map is {}'.format(ofa_model.token_map))
logger.info('Search candidates is {}'.format(ofa_model.search_cands))
logger.info('The length of search_space is {}, search_space is {}'.
format(len(ofa_model._ofa_layers), ofa_model._ofa_layers))
# set model state dict into ofa model
utils.set_state_dict(ofa_model.model, param_state_dict)
return ofa_model
