def load_checkpoint(self, cfg, checkpoint_path, resume=None):
if os.path.exists(checkpoint_path + '_net_G.pdparams'):
if resume is None:
resume = False
else:
current_epoch = 0
current_iteration = 0
print("No checkpoint found.")
return current_epoch, current_iteration
net_G_dict, opt_G_dict = dg.load_dygraph(checkpoint_path + '_net_G')
if not self.is_inference:
net_D_dict, opt_D_dict = dg.load_dygraph(checkpoint_path +
'_net_D')
current_epoch, current_iteration = int(
checkpoint_path.split('_')[-4]), int(
checkpoint_path.split('_')[-2])
if resume:
self.net_G.set_dict(net_G_dict)
self.net_D.set_dict(net_D_dict)
# self.opt_G.set_dict(opt_G_dict)
self.opt_D.set_dict(opt_D_dict)
print("Load from: {}".format(checkpoint_path))
else:
self.net_G.set_dict(net_G_dict)
print("Load generator weights only.")
print("Done with loading the checkpoint.")
return current_epoch, current_iteration
def build():
model = InceptionV4()
path = '/home/aistudio/vid2vid/model/backbones/inceptionv4'
state_dict, _ = dg.load_dygraph(path)
model.set_dict(state_dict)
print("load pretrained inception v4 models from path " + path)
return model
def build_hand_model():
hand_model = HandPose()
state_dict, _ = dg.load_dygraph(
'/home/aistudio/openpose/pretrained_models/pose_hand_21_102000.pdparams'
)
hand_model.load_dict(state_dict)
return hand_model
def build_face_model():
face_model = FacePose()
state_dict, _ = dg.load_dygraph(
'/home/aistudio/openpose/pretrained_models/pose_face_70_iter_116000.pdparams'
)
face_model.load_dict(state_dict)
return face_model
def extract_and_convert(input_dir, output_dir):
if not os.path.exists(output_dir):
os.makedirs(output_dir)
config = json.load(
open(os.path.join(input_dir, 'ernie_config.json'),
'rt',
encoding='utf-8'))
print('=' * 20 + 'save vocab file' + '=' * 20)
shutil.copyfile(os.path.join(input_dir, 'vocab.txt'),
os.path.join(output_dir, 'vocab.txt'))
print('=' * 20 + 'extract weights' + '=' * 20)
state_dict = []
weight_map = build_params_map(attention_num=config['num_hidden_layers'])
with fluid.dygraph.guard():
paddle_paddle_params, _ = D.load_dygraph(
os.path.join(input_dir, 'params'))
for weight_name, weight_value in paddle_paddle_params.items():
if weight_name not in weight_map.keys():
continue
#print(weight_name, weight_value.shape)
if 'w_0' in weight_name \
or 'post_att_layer_norm_scale' in weight_name \
or 'post_ffn_layer_norm_scale' in weight_name \
or 'cls_out_w' in weight_name:
weight_value = weight_value.transpose()
state_dict.append({
'name': weight_map[weight_name],
'data': Tensor(weight_value)
})
print(weight_name, '->', weight_map[weight_name], weight_value.shape)
save_checkpoint(state_dict, os.path.join(output_dir, "ernie.ckpt"))
def _initialize(self, line=4, word=7):
"""
initialize with the necessary elements
"""
if line not in [4, 8]:
raise ValueError("The line could only be 4 or 8.")
if word not in [5, 7]:
raise ValueError("The word could only be 5 or 7.")
self.line = line
assets_path = os.path.join(self.directory, "assets")
gen_checkpoint_path = os.path.join(
assets_path, "ernie_gen_acrostic_poetry_L%sW%s" % (line, word))
ernie_cfg_path = os.path.join(assets_path, 'ernie_config.json')
with open(ernie_cfg_path, encoding='utf8') as ernie_cfg_file:
ernie_cfg = dict(json.loads(ernie_cfg_file.read()))
ernie_vocab_path = os.path.join(assets_path, 'vocab.txt')
with open(ernie_vocab_path, encoding='utf8') as ernie_vocab_file:
ernie_vocab = {
j.strip().split('\t')[0]: i
for i, j in enumerate(ernie_vocab_file.readlines())
}
with fluid.dygraph.guard(fluid.CPUPlace()):
with fluid.unique_name.guard():
self.model = ErnieModelForGeneration(ernie_cfg)
finetuned_states, _ = D.load_dygraph(gen_checkpoint_path)
self.model.set_dict(finetuned_states)
self.tokenizer = ErnieTokenizer(ernie_vocab)
self.rev_dict = {v: k for k, v in self.tokenizer.vocab.items()}
self.rev_dict[self.tokenizer.pad_id] = '' # replace [PAD]
self.rev_dict[self.tokenizer.unk_id] = '' # replace [PAD]
self.rev_lookup = np.vectorize(lambda i: self.rev_dict[i])
def extract_and_convert(input_dir, output_dir):
if not os.path.exists(output_dir):
os.makedirs(output_dir)
print('=' * 20 + 'save config file' + '=' * 20)
config = json.load(
open(os.path.join(input_dir, 'ernie_config.json'),
'rt',
encoding='utf-8'))
config['layer_norm_eps'] = 1e-5
if 'sent_type_vocab_size' in config:
config['type_vocab_size'] = config['sent_type_vocab_size']
config['intermediate_size'] = 4 * config['hidden_size']
json.dump(config,
open(os.path.join(output_dir, 'config.json'),
'wt',
encoding='utf-8'),
indent=4)
print('=' * 20 + 'save vocab file' + '=' * 20)
shutil.copyfile(os.path.join(input_dir, 'vocab.txt'),
os.path.join(output_dir, 'vocab.txt'))
print('=' * 20 + 'extract weights' + '=' * 20)
state_dict = collections.OrderedDict()
weight_map = build_params_map(attention_num=config['num_hidden_layers'])
with fluid.dygraph.guard():
paddle_paddle_params, _ = D.load_dygraph(
os.path.join(input_dir, 'saved_weights'))
for weight_name, weight_value in paddle_paddle_params.items():
if 'weight' in weight_name:
if 'encoder_stack' in weight_name or 'pooler' in weight_name or 'mlm.' in weight_name:
weight_value = weight_value.transpose()
state_dict[weight_map[weight_name]] = torch.FloatTensor(weight_value)
print(weight_name, '->', weight_map[weight_name], weight_value.shape)
torch.save(state_dict, os.path.join(output_dir, "pytorch_model.bin"))
def main():
Place = paddle.fluid.CUDAPlace(0)
with fluid.dygraph.guard(Place):
model = Transformer(image_size=512,
num_classes=15,
hidden_unit_num=1024,
layer_num=2,
head_num=16,
dropout=0.8,
decoder_name='PUP',
hyber=True,
visualable=False)
preprocess = Transform(512)
dataloader_1 = Dataloader('/home/aistudio/dataset',
'/home/aistudio/dataset/val_list.txt',
transform=preprocess,
shuffle=True)
val_load = fluid.io.DataLoader.from_generator(capacity=1,
use_multiprocess=False)
val_load.set_sample_generator(dataloader_1, batch_size=1, places=Place)
model_dic, optic_dic = load_dygraph(
"./output/SETR-NotZero-Epoch-2-Loss-0.161517-MIOU-0.325002")
model.load_dict(model_dic)
model.eval()
'''result = get_infer_data("/home/aistudio/dataset/infer")
infer_load = Load_infer('/home/aistudio/dataset', result, transform=preprocess, shuffle=False)
loader_infer= fluid.io.DataLoader.from_generator(capacity=1, use_multiprocess=False)
loader_infer.set_sample_generator(infer_load, batch_size=1, places=Place)
process_image(model, loader_infer, result)'''
validation(val_load, model, 15)
def _initialize(self):
"""
initialize with the necessary elements
"""
assets_path = os.path.join(self.directory, "assets")
gen_checkpoint_path = os.path.join(assets_path, "ernie_gen")
ernie_cfg_path = os.path.join(assets_path, 'ernie_config.json')
with open(ernie_cfg_path, encoding='utf8') as ernie_cfg_file:
ernie_cfg = dict(json.loads(ernie_cfg_file.read()))
ernie_vocab_path = os.path.join(assets_path, 'vocab.txt')
with open(ernie_vocab_path, encoding='utf8') as ernie_vocab_file:
ernie_vocab = {
j.strip().split('\t')[0]: i
for i, j in enumerate(ernie_vocab_file.readlines())
}
with fluid.dygraph.guard(fluid.CPUPlace()):
with fluid.unique_name.guard():
self.model = ErnieModelForGeneration(ernie_cfg)
finetuned_states, _ = D.load_dygraph(gen_checkpoint_path)
self.model.set_dict(finetuned_states)
self.tokenizer = ErnieTokenizer(ernie_vocab)
self.rev_dict = {v: k for k, v in self.tokenizer.vocab.items()}
self.rev_dict[self.tokenizer.pad_id] = '' # replace [PAD]
self.rev_dict[self.tokenizer.unk_id] = '' # replace [PAD]
self.rev_lookup = np.vectorize(lambda i: self.rev_dict[i])
def load_parameters(model,
optimizer=None,
checkpoint_dir=None,
iteration=None,
checkpoint_path=None):
"""Load a specific model checkpoint from disk.
Args:
model (obj): model to load parameters.
optimizer (obj, optional): optimizer to load states if needed.
Defaults to None.
checkpoint_dir (str, optional): the directory where checkpoint is saved.
iteration (int, optional): if specified, load the specific checkpoint,
if not specified, load the latest one. Defaults to None.
checkpoint_path (str, optional): if specified, load the checkpoint
stored in the checkpoint_path and the argument 'checkpoint_dir' will
be ignored. Defaults to None.
Returns:
iteration (int): number of iterations that the loaded checkpoint has
been trained.
"""
if checkpoint_path is not None:
iteration = int(os.path.basename(checkpoint_path).split("-")[-1])
elif checkpoint_dir is not None:
if iteration is None:
iteration = _load_latest_checkpoint(checkpoint_dir)
if iteration == 0:
return iteration
checkpoint_path = os.path.join(checkpoint_dir,
"step-{}".format(iteration))
else:
raise ValueError(
"At least one of 'checkpoint_dir' and 'checkpoint_path' should be specified!"
)
local_rank = dg.parallel.Env().local_rank
model_dict, optimizer_dict = dg.load_dygraph(checkpoint_path)
state_dict = model.state_dict()
# cast to desired data type, for mixed-precision training/inference.
for k, v in model_dict.items():
if k in state_dict and convert_np_dtype(
v.dtype) != state_dict[k].dtype:
model_dict[k] = v.astype(state_dict[k].numpy().dtype)
model.set_dict(model_dict)
print("[checkpoint] Rank {}: loaded model from {}.pdparams".format(
local_rank, checkpoint_path))
if optimizer and optimizer_dict:
optimizer.set_dict(optimizer_dict)
print("[checkpoint] Rank {}: loaded optimizer state from {}.pdopt".
format(local_rank, checkpoint_path))
return iteration
def load_checkpoint(step, model_path):
model_dict, opti_dict = dg.load_dygraph(os.path.join(model_path, step))
new_state_dict = OrderedDict()
for param in model_dict:
if param.startswith('_layers.'):
new_state_dict[param[8:]] = model_dict[param]
else:
new_state_dict[param] = model_dict[param]
return new_state_dict, opti_dict
def load_model(init_model, model_path):
if os.path.exists(model_path + ".pdparams"):
logging.info("load model from {}".format(model_path))
start_time = time.time()
sd, _ = D.load_dygraph(model_path)
init_model.set_dict(sd)
logging.info("cost time: %.4fs" % (time.time() - start_time))
else:
logging.info("cannot find model file: {}".format(model_path + ".pdparams"))
def load_D(path='data/anime-biggan-256px-run39-607250.discriminator'):
place = fluid.CUDAPlace(fluid.dygraph.ParallelEnv().dev_id)
fluid.enable_dygraph(place)
discriminator = Discriminator(n_class=1000,
chn=96,
blocks_with_attention="B2",
resolution=256)
discriminator.set_dict(dg.load_dygraph(path)[0])
model_cache.D = discriminator
def load_G(path='data/anime-biggan-256px-run39-607250.generator'):
place = fluid.CUDAPlace(fluid.dygraph.ParallelEnv().dev_id)
fluid.enable_dygraph(place)
generator = Generator(code_dim=140,
n_class=1000,
chn=96,
blocks_with_attention="B5",
resolution=256)
generator.set_dict(dg.load_dygraph(path)[0])
model_cache.G = generator
def load_model(init_model, model_path):
""" 将训练得到的参数加载到paddle动态图模型结构中
[in] init_model: 已构造好的模型结构
model_path: str, 模型地址(去掉.pdparams后缀)
"""
if os.path.exists(model_path + ".pdparams"):
logging.info("load model from {}".format(model_path))
start_time = time.time()
sd, _ = D.load_dygraph(model_path)
init_model.set_dict(sd)
logging.info("cost time: %.4fs" % (time.time() - start_time))
else:
logging.info("cannot find model file: {}".format(model_path + ".pdparams"))
def load_wavenet(model, path):
wavenet_dict, _ = dg.load_dygraph(path)
encoder_dict = OrderedDict()
teacher_dict = OrderedDict()
for k, v in wavenet_dict.items():
if k.startswith("encoder."):
encoder_dict[k.split('.', 1)[1]] = v
else:
# k starts with "decoder."
teacher_dict[k.split('.', 1)[1]] = v
model.encoder.set_dict(encoder_dict)
model.teacher.set_dict(teacher_dict)
print("loaded the encoder part and teacher part from wavenet model.")
def build_body_model(body_points=25):
if body_points == 25:
body_model = BodyPose25()
state_dict, _ = dg.load_dygraph(
'/home/aistudio/openpose/pretrained_models/pose_body_25_iter_584000.pdparams'
)
body_model.load_dict(state_dict)
elif body_points == 18:
body_model = BodyPose18()
state_dict, _ = dg.load_dygraph(
'/home/aistudio/openpose/pretrained_models/pose_body_18_iter_440000.pdparams'
)
body_model.load_dict(state_dict)
elif body_points == 15:
body_model = BodyPose15()
state_dict, _ = dg.load_dygraph(
'/home/aistudio/openpose/pretrained_models/pose_body_15_iter_160000.pdparams'
)
body_model.load_dict(state_dict)
else:
raise ValueError()
return body_model
def from_pretrained(cls,
pretrain_dir_or_url,
force_download=False,
**kwargs):
if not Path(pretrain_dir_or_url).exists(
) and pretrain_dir_or_url in cls.resource_map:
url = cls.resource_map[pretrain_dir_or_url]
logger.info('get pretrain dir from %s' % url)
pretrain_dir = Path(_fetch_from_remote(url, force_download))
else:
logger.info('pretrain dir %s not in %s, read from local' %
(pretrain_dir_or_url, repr(cls.resource_map)))
pretrain_dir = Path(pretrain_dir_or_url)
if not pretrain_dir.exists():
raise ValueError('pretrain dir not found: %s' % pretrain_dir)
param_path = pretrain_dir / 'params'
state_dict_path = pretrain_dir / 'saved_weights'
config_path = pretrain_dir / 'ernie_config.json'
if not config_path.exists():
raise ValueError('config path not found: %s' % config_path)
name_prefix = kwargs.pop('name', None)
cfg_dict = dict(json.loads(config_path.open().read()), **kwargs)
model = cls(cfg_dict, name=name_prefix)
logger.info('loading pretrained model from %s' % pretrain_dir)
# if os.path.exists(param_path):
# raise NotImplementedError()
# logger.debug('load pretrained weight from program state')
# F.io.load_program_state(param_path) #buggy in dygraph.gurad, push paddle to fix
if state_dict_path.with_suffix('.pdparams').exists():
m, _ = D.load_dygraph(state_dict_path.as_posix())
for k, v in model.state_dict().items():
if k not in m:
logger.warn('param:%s not set in pretrained model, skip' %
k)
m[k] = v
model.set_dict(m)
else:
raise ValueError('weight file not found in pretrain dir: %s' %
pretrain_dir)
return model
def from_pretrained(cls,
pretrain_dir_or_url,
force_download=False,
**kwargs):
if pretrain_dir_or_url in cls.resource_map:
url = cls.resource_map[pretrain_dir_or_url]
log.info('get pretrain dir from %s' % url)
pretrain_dir = _fetch_from_remote(url, force_download)
else:
log.info('pretrain dir %s not in %s, read from local' %
(pretrain_dir_or_url, repr(cls.resource_map)))
pretrain_dir = pretrain_dir_or_url
if not os.path.exists(pretrain_dir):
raise ValueError('pretrain dir not found: %s' % pretrain_dir)
param_path = os.path.join(pretrain_dir, 'params')
state_dict_path = os.path.join(pretrain_dir, 'saved_weights')
config_path = os.path.join(pretrain_dir, 'ernie_config.json')
if not os.path.exists(config_path):
raise ValueError('config path not found: %s' % config_path)
name_prefix = kwargs.pop('name', None)
cfg_dict = dict(json.loads(open(config_path).read()), **kwargs)
model = cls(cfg_dict, name=name_prefix)
log.info('loading pretrained model from %s' % pretrain_dir)
#if os.path.exists(param_path):
# raise NotImplementedError()
# log.debug('load pretrained weight from program state')
# F.io.load_program_state(param_path) #buggy in dygraph.gurad, push paddle to fix
if os.path.exists(state_dict_path + '.pdparams'):
m, _ = D.load_dygraph(state_dict_path)
for k, v in model.state_dict().items():
if k not in m:
log.warn('param:%s not set in pretrained model, skip' % k)
m[k] = v # FIXME: no need to do this in the future
model.set_dict(m)
else:
raise ValueError('weight file not found in pretrain dir: %s' %
pretrain_dir)
return model
a = L.argmax(logits, -1) == label
acc.append(a.numpy())
model.train()
log.debug('acc %.5f' % np.concatenate(acc).mean())
if args.save_dir is not None:
F.save_dygraph(model.state_dict(), args.save_dir)
else:
feature_column = propeller.data.FeatureColumns([
propeller.data.TextColumn('seg_a',
unk_id=tokenizer.unk_id,
vocab_dict=tokenizer.vocab,
tokenizer=tokenizer.tokenize),
])
assert args.save_dir is not None
sd, _ = FD.load_dygraph(args.save_dir)
model.set_dict(sd)
model.eval()
def map_fn(seg_a):
seg_a, _ = tokenizer.truncate(seg_a, [],
seqlen=args.max_seqlen)
sentence, segments = tokenizer.build_for_ernie(seg_a, [])
return sentence, segments
predict_ds = feature_column.build_dataset_from_stdin('predict') \
.map(map_fn) \
.padded_batch(args.bsz)
shapes = ([-1, args.max_seqlen], [-1, args.max_seqlen])
types = ('int64', 'int64')
predict_ds.data_shapes = shapes
if args.use_data_parallel else
fluid.CUDAPlace(0) if args.use_gpu else fluid.CPUPlace())
with dg.guard(place) as g:
pyreader = fluid.io.PyReader(capacity=10, return_list=True)
pyreader.decorate_batch_generator(data_loader, place)
model = make_deepvoice3_from_hparams(hparams)
optimizer, clipper = make_optimizer_from_hparams(hparams)
print("Log event path: {}".format(tensorboard_dir))
writer = SummaryWriter(tensorboard_dir) if local_rank == 0 else None
criterion = make_loss_from_hparams(hparams)
# loading saved model
if args.train_postnet_only or args.train_seq2seq_only:
assert args.checkpoint is not None, \
"you must train part of the model from a trained whole model"
if args.train_postnet_only:
assert hparams.use_decoder_state_for_postnet_input is False, \
"when training only the postnet, there is no decoder states"
if args.checkpoint is not None:
model_dict, optimizer_dict = dg.load_dygraph(args.checkpoint)
if args.use_data_parallel:
strategy = dg.parallel.prepare_context()
model = MyDataParallel(model, strategy)
train_model(model, pyreader, criterion, optimizer, clipper, writer,
args, hparams)
print("Done!")
print(" {}: {}".format(k, v))
# Load preset if specified
if preset is not None:
with io.open(preset) as f:
hparams.parse_json(f.read())
# Override hyper parameters
hparams.parse(args.hparams)
assert hparams.name == "deepvoice3"
place = fluid.CUDAPlace(0) if use_gpu else fluid.CPUPlace()
with dg.guard(place):
# Model
model = make_deepvoice3_from_hparams(hparams)
dry_run(model)
model_dict, _ = dg.load_dygraph(args.checkpoint)
model.set_dict(model_dict)
checkpoint_name = splitext(basename(checkpoint_path))[0]
model.seq2seq.decoder.max_decoder_steps = max_decoder_steps
if not os.path.exists(dst_dir):
os.makedirs(dst_dir)
with io.open(text_list_file_path, "rt", encoding="utf-8") as f:
lines = f.readlines()
for idx, line in enumerate(lines):
text = line[:-1]
words = nltk.word_tokenize(text)
waveform, alignment, _, _ = tts(model,
text,
# print(np.percentile([len(row[0]) for row in dev_features], [0, 50, 95, 99, 100]))
# to batch
print('start training...')
bst_f1, global_step = 0, 0
args.max_steps = (len(train_features) // args.bsz + 1) * args.epochs
try:
place = F.CUDAPlace(0)
except:
place = F.CPUPlace()
with FD.guard(place):
if 'ernie' in args.from_pretrained:
model = ErnieModelForSequenceClassification.from_pretrained(
args.from_pretrained, num_labels=2, name='')
if args.init_checkpoint is not None:
print('loading checkpoint from %s' % args.init_checkpoint)
sd, _ = FD.load_dygraph(args.init_checkpoint)
model.set_dict(sd)
elif 'wwm' in args.from_pretrained:
config = json.load(
open(os.path.join(args.from_pretrained, 'ernie_config.json'),
'rt',
encoding='utf-8'))
config['num_labels'] = 2
model = ErnieModelForSequenceClassification(config)
# print(model)
print('loading checkpoint from %s' % 'chinese_roberta_wwm_pp')
sd, _ = FD.load_dygraph('%s/roberta_wwm.pdparams' %
args.from_pretrained)
for k, v in model.state_dict().items():
if k not in sd:
print('param:%s not set in pretrained model, skip' % k)
# print(np.percentile([len(row[0]) for row in train_features], [0, 50, 95, 99, 100]))
# print(np.percentile([len(row[0]) for row in dev_features], [0, 50, 95, 99, 100]))
# to batch
try:
place = F.CUDAPlace(0)
except:
place = F.CPUPlace()
with FD.guard(place):
if 'wwm' in args.from_pretrained:
config = json.load(open(os.path.join(args.from_pretrained, 'ernie_config.json'), 'rt', encoding='utf-8'))
config['num_labels'] = 2
model = ErnieModelForSequenceClassification(config)
# print(model)
print('loading checkpoint from %s' % 'chinese_roberta_wwm_pp')
sd, _ = FD.load_dygraph('%s/roberta_wwm.pdparams' % args.from_pretrained)
for k, v in model.state_dict().items():
if k not in sd:
print('param:%s not set in pretrained model, skip' % k)
sd[k] = v # FIXME: no need to do this in the future
model.set_dict(sd)
else:
model = ErnieModelForSequenceClassification.from_pretrained(args.from_pretrained, num_labels=2, name='')
if args.init_checkpoint is not None:
print('loading checkpoint from %s' % args.init_checkpoint)
sd, _ = FD.load_dygraph(args.init_checkpoint)
model.set_dict(sd)
test_batch_data = batchify(test_features, args.bsz, args.max_seqlen)
if args.debug:
print(len(test_batch_data))
default=None,
help='inference model output directory')
parser.add_argument('--init_checkpoint', type=str, default=None)
parser.add_argument('--save_dir',
type=str,
default=None,
help='model output directory')
parser.add_argument('--wd',
type=float,
default=0.01,
help='weight decay, aka L2 regularizer')
args = parser.parse_args()
place = F.CUDAPlace(D.parallel.Env().dev_id)
D.guard(place).__enter__()
ernie = ErnieModelForGeneration.from_pretrained(args.from_pretrained)
tokenizer = ErnieTokenizer.from_pretrained(args.from_pretrained,
mask_token=None)
rev_dict = {v: k for k, v in tokenizer.vocab.items()}
rev_dict[tokenizer.pad_id] = '' # replace [PAD]
rev_dict[tokenizer.unk_id] = '' # replace [PAD]
if args.init_checkpoint is not None:
log.info('loading checkpoint from %s' % args.init_checkpoint)
sd, _ = D.load_dygraph(args.init_checkpoint)
ernie.set_dict(sd)
seq2seq(ernie, tokenizer, args)
for epoch in range(EPOCH):
for step, (ids_student, ids, sids,
labels) in enumerate(train_ds.start(place)):
loss, logits = teacher_model(ids, labels=labels)
loss.backward()
if step % 10 == 0:
print('[step %03d] teacher train loss %.5f lr %.3e' %
(step, loss.numpy(), opt.current_step_lr()))
opt.minimize(loss, grad_clip=g_clip)
teacher_model.clear_gradients()
if step % 100 == 0:
f1 = evaluate_teacher(teacher_model, dev_ds)
print('teacher f1: %.5f' % f1)
D.save_dygraph(teacher_model.state_dict(), './teacher_model')
else:
state_dict, _ = D.load_dygraph('./teacher_model')
teacher_model.set_dict(state_dict)
f1 = evaluate_teacher(teacher_model, dev_ds)
print('teacher f1: %.5f' % f1)
# 定义finetune student 模型所需要的超参数
SEQLEN = 256
BATCH = 100
EPOCH = 10
LR = 1e-4
def evaluate_student(model, dataset):
all_pred, all_label = [], []
with D.base._switch_tracer_mode_guard_(is_train=False):
model.eval()
def finetune(
self,
train_path,
dev_path=None,
save_dir="ernie_gen_result",
init_ckpt_path=None,
use_gpu=True,
max_steps=500,
batch_size=8,
max_encode_len=50,
max_decode_len=50,
learning_rate=5e-5,
warmup_proportion=0.1,
weight_decay=0.1,
noise_prob=0,
label_smooth=0,
beam_width=5,
length_penalty=1.0,
log_interval=100,
save_interval=200,
):
"""
finetune with the specified dataset.
Args:
train_path(str): the train dataset path.
dev_path(str): the dev dataset path.
save_dir(str): the model params and dev dataset predict result save path.
init_ckpt_path(str): incremental training load path.
use_gpu(bool): use gpu or not.
max_steps(int): max training steps.
batch_size(int): the batch size.
max_encode_len(int): the max encode length.
max_decode_len(int): the max decode length.
learning_rate(float): the learning rate.
warmup_proportion(float): the warmup proportion.
weight_decay(float): the weight decay magnitude.
noise_prob(float): the nosie probability. see the ernie gen paper for details.
label_smooth(float): the label smooth magnitude.
beam_width(int): the beam size during evaluating the dev dataset.
length_penalty(float): the length penalty during evaluating the dev dataset.
log_interval(int): the log interval.
save_interval(int): the save interval. dev set will be evaluated after saving.
Return:
result(dict): A Dictionary of shape::
{
last_save_path(str): last model save path.
last_ppl(float): last model ppl.
}
"""
self.max_encode_len = max_encode_len
self.max_decode_len = max_decode_len
self.noise_prob = noise_prob
place = F.CUDAPlace(0) if use_gpu else F.CPUPlace()
with F.dygraph.guard(place):
if init_ckpt_path is not None:
logger.info('loading checkpoint from %s' % init_ckpt_path)
sd, _ = D.load_dygraph(init_ckpt_path)
self.model.set_dict(sd)
feature_column = propeller.data.FeatureColumns([
propeller.data.LabelColumn('id'),
propeller.data.TextColumn(
'src',
unk_id=self.tokenizer.unk_id,
vocab_dict=self.tokenizer.vocab,
tokenizer=self.tokenizer.tokenize),
propeller.data.TextColumn(
'tgt',
unk_id=self.tokenizer.unk_id,
vocab_dict=self.tokenizer.vocab,
tokenizer=self.tokenizer.tokenize),
])
train_ds = feature_column.build_dataset('train', data_file=train_path, shuffle=False,
repeat=True, use_gz=False)\
.map(self._map_fn).shuffle(10000).padded_batch(batch_size).map(self._after_padding)
train_ds.data_shapes = [[None, None]] * 7 + [[None, None, None]
] * 3 + [[None]]
train_ds.data_types = ['int64'] * 11
if dev_path:
dev_ds = feature_column.build_dataset('dev', data_file=dev_path, shuffle=False,
repeat=False, use_gz=False) \
.map(self._map_fn) \
.padded_batch(1) \
.map(self._after_padding)
dev_ds.data_shapes = [[None, None]] * 7 + [[None, None, None]
] * 3 + [[None]]
dev_ds.data_types = ['int64'] * 11
vocab_size, _ = self.model.word_emb.weight.shape
g_clip = F.clip.GradientClipByGlobalNorm(1.0)
opt = AdamW(
learning_rate=LinearDecay(learning_rate,
int(warmup_proportion * max_steps),
max_steps),
parameter_list=self.model.parameters(),
weight_decay=weight_decay,
grad_clip=g_clip)
loss = None
save_path = None
ppl = None
if save_dir and not os.path.exists(save_dir):
os.makedirs(save_dir)
for step, data in enumerate(train_ds.start(place)):
(example_id, src_ids, src_sids, src_pids, tgt_ids, tgt_sids,
tgt_pids, attn_ids, mask_src_2_src, mask_tgt_2_srctgt,
mask_attn_2_srctgtattn, tgt_labels) = data
_, __, info = self.model(
src_ids,
sent_ids=src_sids,
pos_ids=src_pids,
attn_bias=mask_src_2_src,
encode_only=True)
cached_k, cached_v = info['caches']
_, __, info = self.model(
tgt_ids,
sent_ids=tgt_sids,
pos_ids=tgt_pids,
attn_bias=mask_tgt_2_srctgt,
past_cache=(cached_k, cached_v),
encode_only=True)
cached_k2, cached_v2 = info['caches']
past_cache_k = [
L.concat([k, k2], 1) for k, k2 in zip(cached_k, cached_k2)
]
past_cache_v = [
L.concat([v, v2], 1) for v, v2 in zip(cached_v, cached_v2)
]
if label_smooth > 0.:
tgt_labels = L.label_smooth(
F.one_hot(tgt_labels, vocab_size), epsilon=label_smooth)
loss, _, __ = self.model(
attn_ids,
sent_ids=tgt_sids,
pos_ids=tgt_pids,
attn_bias=mask_attn_2_srctgtattn,
past_cache=(past_cache_k, past_cache_v),
tgt_labels=tgt_labels,
tgt_pos=L.where(attn_ids == self.tokenizer.vocab['[MASK]']))
loss.backward()
opt.minimize(loss)
self.model.clear_gradients()
if step % log_interval == 0:
loss_np = loss.numpy()
ppl = np.exp(loss_np)
logger.info(
'[step %d / %d]train loss %.5f, ppl %.5f, elr %.3e' %
(step, max_steps, loss_np, ppl, opt.current_step_lr()))
if save_dir and step % save_interval == 0 and step > 0:
loss_np = loss.numpy()
ppl = np.exp(loss_np)
save_name = "step_%s_ppl_%.5f" % (step, ppl)
save_path = os.path.join(save_dir, save_name)
logger.info("save the model in %s" % save_path)
F.save_dygraph(self.model.state_dict(), save_path)
if dev_path:
logger.info('evaluating...')
res = self._evaluate(dev_ds, place, beam_width,
length_penalty)
output_path = os.path.join(
save_dir, "step_%s_ppl_%.5f.txt" % (step, ppl))
logger.info(
'save the predict result in %s' % output_path)
with open(output_path, 'w') as fout:
fout.write(('\n'.join(res)))
if step > max_steps:
break
if loss:
loss_np = loss.numpy()
ppl = np.exp(loss_np)
logger.info('[final step %d]train loss %.5f, ppl %.5f, elr %.3e'
% (step, loss_np, ppl, opt.current_step_lr()))
if save_dir:
save_name = "step_%s_ppl_%.5f" % (step, ppl)
save_path = os.path.join(save_dir, save_name)
logger.info("save the model in %s" % save_path)
F.save_dygraph(self.model.state_dict(), save_path)
if dev_path:
logger.info('evaluating...')
res = self._evaluate(dev_ds, place, beam_width,
length_penalty)
output_path = os.path.join(
save_dir, "step_%s_ppl_%.5f.txt" % (step, ppl))
logger.info(
'save the predict result in %s' % output_path)
with open(output_path, 'w') as fout:
fout.write(('\n'.join(res)))
result = {
"last_save_path": "%s.pdparams" % save_path,
"last_ppl": ppl[0],
}
return result
