def main():
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser(
(ModelArguments, DataTrainingArguments, Seq2SeqTrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(
json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses(
)
check_output_dir(training_args)
# Setup logging
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
level=logging.INFO
if training_args.local_rank in [-1, 0] else logging.WARN,
)
logger.warning(
"Process rank: %s, device: %s, n_gpu: %s, distributed training: %s, 16-bits training: %s",
training_args.local_rank,
training_args.device,
training_args.n_gpu,
bool(training_args.parallel_mode == ParallelMode.DISTRIBUTED),
training_args.fp16,
)
# Set the verbosity to info of the Transformers logger (on main process only):
if is_main_process(training_args.local_rank):
transformers.utils.logging.set_verbosity_info()
transformers.utils.logging.enable_default_handler()
transformers.utils.logging.enable_explicit_format()
logger.info("Training/evaluation parameters %s", training_args)
# Set seed
set_seed(training_args.seed)
# Load pretrained model and tokenizer
#
# Distributed training:
# The .from_pretrained methods guarantee that only one local process can concurrently
# download model & vocab.
config = BartConfig.from_pretrained(
model_args.config_name
if model_args.config_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
)
extra_model_params = ("encoder_layerdrop", "decoder_layerdrop", "dropout",
"attention_dropout")
for p in extra_model_params:
if getattr(training_args, p, None):
assert hasattr(
config, p
), f"({config.__class__.__name__}) doesn't have a `{p}` attribute"
setattr(config, p, getattr(training_args, p))
tokenizer = BartTokenizer.from_pretrained(
model_args.tokenizer_name
if model_args.tokenizer_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
)
model = BartForConditionalGeneration.from_pretrained(
model_args.model_name_or_path,
from_tf=".ckpt" in model_args.model_name_or_path,
config=config,
cache_dir=model_args.cache_dir,
)
# use task specific params
use_task_specific_params(model, data_args.task)
# set num_beams for evaluation
if data_args.eval_beams is None:
data_args.eval_beams = model.config.num_beams
# set decoder_start_token_id for MBart
if model.config.decoder_start_token_id is None and isinstance(
tokenizer, MBartTokenizer):
assert (data_args.tgt_lang is not None and data_args.src_lang
is not None), "mBart requires --tgt_lang and --src_lang"
model.config.decoder_start_token_id = tokenizer.lang_code_to_id[
data_args.tgt_lang]
if model_args.freeze_embeds:
freeze_embeds(model)
if model_args.freeze_encoder:
freeze_params(model.get_encoder())
assert_all_frozen(model.get_encoder())
dataset_class = Seq2SeqDataset
# Get datasets
train_dataset = (dataset_class(
tokenizer,
type_path="train",
data_dir=data_args.data_dir,
n_obs=data_args.n_train,
max_target_length=data_args.max_target_length,
max_source_length=data_args.max_source_length,
prefix=model.config.prefix or "",
) if training_args.do_train else None)
eval_dataset = (dataset_class(
tokenizer,
type_path="val",
data_dir=data_args.data_dir,
n_obs=data_args.n_val,
max_target_length=data_args.val_max_target_length,
max_source_length=data_args.max_source_length,
prefix=model.config.prefix or "",
) if training_args.do_eval or
training_args.evaluation_strategy != EvaluationStrategy.NO
else None)
test_dataset = (dataset_class(
tokenizer,
type_path="test",
data_dir=data_args.data_dir,
n_obs=data_args.n_test,
max_target_length=data_args.test_max_target_length,
max_source_length=data_args.max_source_length,
prefix=model.config.prefix or "",
) if training_args.do_predict else None)
# Initialize our Trainer
compute_metrics_fn = (build_compute_metrics_fn(data_args.task, tokenizer)
if training_args.predict_with_generate else None)
trainer = Seq2SeqTrainer(
model=model,
args=training_args,
train_dataset=train_dataset,
eval_dataset=eval_dataset,
data_collator=Seq2SeqDataCollator(tokenizer, data_args,
training_args.tpu_num_cores),
compute_metrics=compute_metrics_fn,
tokenizer=tokenizer,
)
all_metrics = {}
# Training
if training_args.do_train:
logger.info("*** Train ***")
train_result = trainer.train(
model_path=model_args.model_name_or_path if os.path.
isdir(model_args.model_name_or_path) else None)
metrics = train_result.metrics
metrics["train_n_objs"] = data_args.n_train
trainer.save_model() # this also saves the tokenizer
if trainer.is_world_process_zero():
handle_metrics("train", metrics, training_args.output_dir)
all_metrics.update(metrics)
# Need to save the state, since Trainer.save_model saves only the tokenizer with the model
trainer.state.save_to_json(
os.path.join(training_args.output_dir, "trainer_state.json"))
# For convenience, we also re-save the tokenizer to the same directory,
# so that you can share your model easily on huggingface.co/models =)
tokenizer.save_pretrained(training_args.output_dir)
# Evaluation
if training_args.do_eval:
logger.info("*** Evaluate ***")
metrics = trainer.evaluate(metric_key_prefix="val",
max_length=data_args.val_max_target_length,
num_beams=data_args.eval_beams)
metrics["val_n_objs"] = data_args.n_val
metrics["val_loss"] = round(metrics["val_loss"], 4)
if trainer.is_world_process_zero():
handle_metrics("val", metrics, training_args.output_dir)
all_metrics.update(metrics)
if training_args.do_predict:
logger.info("*** Predict ***")
test_output = trainer.predict(
test_dataset=test_dataset,
metric_key_prefix="test",
max_length=data_args.val_max_target_length,
num_beams=data_args.eval_beams,
)
metrics = test_output.metrics
metrics["test_n_objs"] = data_args.n_test
if trainer.is_world_process_zero():
metrics["test_loss"] = round(metrics["test_loss"], 4)
handle_metrics("test", metrics, training_args.output_dir)
all_metrics.update(metrics)
if training_args.predict_with_generate:
test_preds = tokenizer.batch_decode(
test_output.predictions,
skip_special_tokens=True,
clean_up_tokenization_spaces=True)
test_preds = lmap(str.strip, test_preds)
write_txt_file(
test_preds,
os.path.join(training_args.output_dir,
"test_generations.txt"))
if trainer.is_world_process_zero():
save_json(all_metrics,
os.path.join(training_args.output_dir, "all_results.json"))
return all_metrics
def main():
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser(
(ModelArguments, DataTrainingArguments, Seq2SeqTrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(
json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses(
)
check_output_dir(training_args)
# Setup logging
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
level=logging.INFO
if training_args.local_rank in [-1, 0] else logging.WARN,
)
logger.warning(
"Process rank: %s, device: %s, n_gpu: %s, distributed training: %s, 16-bits training: %s",
training_args.local_rank,
training_args.device,
training_args.n_gpu,
bool(training_args.parallel_mode == ParallelMode.DISTRIBUTED),
training_args.fp16,
)
# Set the verbosity to info of the Transformers logger (on main process only):
if is_main_process(training_args.local_rank):
transformers.utils.logging.set_verbosity_info()
transformers.utils.logging.enable_default_handler()
transformers.utils.logging.enable_explicit_format()
logger.info("Training/evaluation parameters %s", training_args)
# Set seed
set_seed(training_args.seed)
# Load pretrained model and tokenizer
#
# Distributed training:
# The .from_pretrained methods guarantee that only one local process can concurrently
# download model & vocab.
config = AutoConfig.from_pretrained(
model_args.config_name
if model_args.config_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
)
extra_model_params = ("encoder_layerdrop", "decoder_layerdrop", "dropout",
"attention_dropout")
for p in extra_model_params:
if getattr(training_args, p, None):
assert hasattr(
config, p
), f"({config.__class__.__name__}) doesn't have a `{p}` attribute"
setattr(config, p, getattr(training_args, p))
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name
if model_args.tokenizer_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
)
model = AutoModelForSeq2SeqLM.from_pretrained(
model_args.model_name_or_path,
from_tf=".ckpt" in model_args.model_name_or_path,
config=config,
cache_dir=model_args.cache_dir,
)
# use task specific params
use_task_specific_params(model, data_args.task)
# set num_beams for evaluation
if data_args.eval_beams is None:
data_args.eval_beams = model.config.num_beams
# set decoder_start_token_id for MBart
if model.config.decoder_start_token_id is None and isinstance(
tokenizer, MBartTokenizer):
assert (data_args.tgt_lang is not None and data_args.src_lang
is not None), "mBart requires --tgt_lang and --src_lang"
model.config.decoder_start_token_id = tokenizer.lang_code_to_id[
data_args.tgt_lang]
if model_args.freeze_embeds:
freeze_embeds(model)
if model_args.freeze_encoder:
freeze_params(model.get_encoder())
assert_all_frozen(model.get_encoder())
dataset_class = Seq2SeqDataset
# Get datasets
train_dataset = (dataset_class(
tokenizer,
type_path="train",
data_dir=data_args.data_dir,
n_obs=data_args.n_train,
max_target_length=data_args.max_target_length,
max_source_length=data_args.max_source_length,
prefix=model.config.prefix or "",
) if training_args.do_train else None)
eval_dataset = (dataset_class(
tokenizer,
type_path="val",
data_dir=data_args.data_dir,
n_obs=data_args.n_val,
max_target_length=data_args.val_max_target_length,
max_source_length=data_args.max_source_length,
prefix=model.config.prefix or "",
) if training_args.do_eval or
training_args.evaluation_strategy != EvaluationStrategy.NO
else None)
test_dataset = (dataset_class(
tokenizer,
type_path="test",
data_dir=data_args.data_dir,
n_obs=data_args.n_test,
max_target_length=data_args.test_max_target_length,
max_source_length=data_args.max_source_length,
prefix=model.config.prefix or "",
) if training_args.do_predict else None)
# Initialize our Trainer
compute_metrics_fn = (build_compute_metrics_fn(data_args.task, tokenizer)
if training_args.predict_with_generate else None)
trainer = Seq2SeqTrainer(
model=model,
args=training_args,
train_dataset=train_dataset,
eval_dataset=eval_dataset,
data_collator=Seq2SeqDataCollator(tokenizer, data_args,
training_args.tpu_num_cores),
compute_metrics=compute_metrics_fn,
tokenizer=tokenizer,
)
all_metrics = {}
# Training
if training_args.do_train:
logger.info("*** Train ***")
train_result = trainer.train(
model_path=model_args.model_name_or_path if os.path.
isdir(model_args.model_name_or_path) else None)
metrics = train_result.metrics
metrics["train_n_objs"] = data_args.n_train
trainer.save_model() # this also saves the tokenizer
if trainer.is_world_process_zero():
handle_metrics("train", metrics, training_args.output_dir)
all_metrics.update(metrics)
# Need to save the state, since Trainer.save_model saves only the tokenizer with the model
trainer.state.save_to_json(
os.path.join(training_args.output_dir, "trainer_state.json"))
# For convenience, we also re-save the tokenizer to the same directory,
# so that you can share your model easily on huggingface.co/models =)
tokenizer.save_pretrained(training_args.output_dir)
if training_args.tune:
def eval_func_for_lpot(model):
trainer.model = model
results = trainer.evaluate(
eval_dataset=eval_dataset,
metric_key_prefix="val",
max_length=data_args.val_max_target_length,
num_beams=data_args.eval_beams)
assert data_args.task.startswith("summarization") or data_args.task.startswith("translation") , \
"data_args.task should startswith summarization or translation"
task_metrics_keys = [
'val_bleu', 'val_rouge1', 'val_rouge2', 'val_rougeL',
'val_rougeLsum'
]
for key in task_metrics_keys:
if key in results.keys():
logger.info("Finally Eval {}:{}".format(key, results[key]))
if 'bleu' in key:
acc = results[key]
break
if 'rouge' in key:
acc = sum(
[v
for k, v in results.items() if "rouge" in k]) / 4
break
return acc
from lpot.experimental import Quantization, common
quantizer = Quantization("./conf.yaml")
quantizer.model = common.Model(model)
quantizer.calib_dataloader = common.DataLoader(
eval_dataset,
batch_size=training_args.eval_batch_size,
collate_fn=Seq2SeqDataCollator_lpot(tokenizer, data_args,
training_args.tpu_num_cores))
quantizer.eval_func = eval_func_for_lpot
q_model = quantizer()
q_model.save(training_args.tuned_checkpoint)
exit(0)
if training_args.benchmark:
if training_args.int8:
from lpot.utils.pytorch import load
new_model = load(
os.path.abspath(
os.path.expanduser(training_args.tuned_checkpoint)), model)
else:
new_model = model
trainer.model = new_model
results = trainer.evaluate(
eval_dataset=eval_dataset,
metric_key_prefix="val",
max_length=data_args.val_max_target_length,
num_beams=data_args.eval_beams,
iters=training_args.iters,
warmup_iter=training_args.warmup_iter,
)
if data_args.task.startswith("summarization"):
print('Accuracy: %.4f' %
(sum([v for k, v in results.items() if "rouge" in k]) / 4))
if data_args.task.startswith("translation"):
print('Accuracy: %.4f' % (results['val_bleu']))
print('Throughput: %.3f samples/sec' %
(results["val_samples_per_second"]))
print('Latency: %.3f ms' %
(1 * 1000 / results["val_samples_per_second"]))
print('Batch size = %d' % training_args.per_device_eval_batch_size)
exit(0)
if training_args.accuracy_only:
if training_args.int8:
from lpot.utils.pytorch import load
new_model = load(
os.path.abspath(
os.path.expanduser(training_args.tuned_checkpoint)), model)
else:
new_model = model
trainer.model = new_model
results = trainer.evaluate(
eval_dataset=eval_dataset,
metric_key_prefix="val",
max_length=data_args.val_max_target_length,
num_beams=data_args.eval_beams,
)
if data_args.task.startswith("summarization"):
print('Accuracy: %.4f' %
(sum([v for k, v in results.items() if "rouge" in k]) / 4))
if data_args.task.startswith("translation"):
print('Accuracy: %.4f' % (results['val_bleu']))
print('Latency: %.3f ms' %
(1 * 1000 / results["val_samples_per_second"]))
print('Batch size = %d' % training_args.per_device_eval_batch_size)
exit(0)
# Evaluation
if training_args.do_eval:
logger.info("*** Evaluate ***")
metrics = trainer.evaluate(
metric_key_prefix="val",
max_length=data_args.val_max_target_length,
num_beams=data_args.eval_beams,
)
metrics["val_n_objs"] = data_args.n_val
metrics["val_loss"] = round(metrics["val_loss"], 4)
if trainer.is_world_process_zero():
handle_metrics("val", metrics, training_args.output_dir)
all_metrics.update(metrics)
if training_args.do_predict:
logger.info("*** Predict ***")
test_output = trainer.predict(
test_dataset=test_dataset,
metric_key_prefix="test",
max_length=data_args.val_max_target_length,
num_beams=data_args.eval_beams,
)
metrics = test_output.metrics
metrics["test_n_objs"] = data_args.n_test
if trainer.is_world_process_zero():
metrics["test_loss"] = round(metrics["test_loss"], 4)
handle_metrics("test", metrics, training_args.output_dir)
all_metrics.update(metrics)
if training_args.predict_with_generate:
test_preds = tokenizer.batch_decode(
test_output.predictions,
skip_special_tokens=True,
clean_up_tokenization_spaces=True)
test_preds = lmap(str.strip, test_preds)
write_txt_file(
test_preds,
os.path.join(training_args.output_dir,
"test_generations.txt"))
if trainer.is_world_process_zero():
save_json(all_metrics,
os.path.join(training_args.output_dir, "all_results.json"))
return all_metrics
def main():
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser(
(ModelArguments, DataTrainingArguments, Seq2SeqTrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(
json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses(
)
if (os.path.exists(training_args.output_dir)
and os.listdir(training_args.output_dir) and training_args.do_train
and not training_args.overwrite_output_dir):
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. Use --overwrite_output_dir to overcome."
)
# Setup logging
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
level=logging.INFO
if training_args.local_rank in [-1, 0] else logging.WARN,
)
logger.warning(
"Process rank: %s, device: %s, n_gpu: %s, distributed training: %s, 16-bits training: %s",
training_args.local_rank,
training_args.device,
training_args.n_gpu,
bool(training_args.local_rank != -1),
training_args.fp16,
)
logger.info("Training/evaluation parameters %s", training_args)
# Set seed
set_seed(training_args.seed)
# Load pretrained model and tokenizer
#
# Distributed training:
# The .from_pretrained methods guarantee that only one local process can concurrently
# download model & vocab.
config = AutoConfig.from_pretrained(
model_args.config_name
if model_args.config_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
)
extra_model_params = ("encoder_layerdrop", "decoder_layerdrop", "dropout",
"attention_dropout")
for p in extra_model_params:
if getattr(training_args, p, None):
assert hasattr(
config, p
), f"({config.__class__.__name__}) doesn't have a `{p}` attribute"
setattr(config, p, getattr(training_args, p))
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name
if model_args.tokenizer_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
)
model = AutoModelForSeq2SeqLM.from_pretrained(
model_args.model_name_or_path,
from_tf=".ckpt" in model_args.model_name_or_path,
config=config,
cache_dir=model_args.cache_dir,
)
# use task specific params
use_task_specific_params(model, data_args.task)
# set num_beams for evaluation
if data_args.eval_beams is None:
data_args.eval_beams = model.config.num_beams
# set decoder_start_token_id for MBart
if model.config.decoder_start_token_id is None and isinstance(
tokenizer, MBartTokenizer):
assert (data_args.tgt_lang is not None and data_args.src_lang
is not None), "mBart requires --tgt_lang and --src_lang"
model.config.decoder_start_token_id = tokenizer.lang_code_to_id[
data_args.tgt_lang]
if model_args.freeze_embeds:
freeze_embeds(model)
if model_args.freeze_encoder:
freeze_params(model.get_encoder())
assert_all_frozen(model.get_encoder())
dataset_class = Seq2SeqDataset if hasattr(
tokenizer, "prepare_seq2seq_batch") else LegacySeq2SeqDataset
# Get datasets
train_dataset = (dataset_class(
tokenizer,
type_path="train",
data_dir=data_args.data_dir,
n_obs=data_args.n_train,
max_target_length=data_args.max_target_length,
max_source_length=data_args.max_source_length,
prefix=model.config.prefix or "",
) if training_args.do_train else None)
eval_dataset = (dataset_class(
tokenizer,
type_path="val",
data_dir=data_args.data_dir,
n_obs=data_args.n_val,
max_target_length=data_args.val_max_target_length,
max_source_length=data_args.max_source_length,
prefix=model.config.prefix or "",
) if training_args.do_eval or
training_args.evaluation_strategy != EvaluationStrategy.NO
else None)
test_dataset = (dataset_class(
tokenizer,
type_path="test",
data_dir=data_args.data_dir,
n_obs=data_args.n_test,
max_target_length=data_args.test_max_target_length,
max_source_length=data_args.max_source_length,
prefix=model.config.prefix or "",
) if training_args.do_predict else None)
# Initialize our Trainer
compute_metrics_fn = (build_compute_metrics_fn(data_args.task, tokenizer)
if training_args.predict_with_generate else None)
trainer = Seq2SeqTrainer(
model=model,
config=config,
args=training_args,
train_dataset=train_dataset,
eval_dataset=eval_dataset,
data_collator=Seq2SeqDataCollator(tokenizer, data_args,
training_args.tpu_num_cores),
compute_metrics=compute_metrics_fn,
data_args=data_args,
)
# Training
if training_args.do_train:
trainer.train(model_path=model_args.model_name_or_path if os.path.
isdir(model_args.model_name_or_path) else None)
trainer.save_model()
# For convenience, we also re-save the tokenizer to the same directory,
# so that you can share your model easily on huggingface.co/models =)
if trainer.is_world_process_zero():
trainer.state.save_to_json(
os.path.join(training_args.output_dir, "trainer_state.json"))
tokenizer.save_pretrained(training_args.output_dir)
# Evaluation
eval_results = {}
if training_args.do_eval:
logger.info("*** Evaluate ***")
result = trainer.evaluate()
if trainer.is_world_process_zero():
logger.info("***** Eval results *****")
for key, value in result.items():
logger.info(" %s = %s", key, value)
save_json(
result,
os.path.join(training_args.output_dir, "eval_results.json"))
eval_results.update(result)
if training_args.do_predict:
logging.info("*** Test ***")
test_output = trainer.predict(test_dataset=test_dataset)
test_metrics = {
k.replace("eval", "test"): v
for k, v in test_output.metrics.items()
}
if trainer.is_world_process_zero():
logger.info("***** Test results *****")
for key, value in test_metrics.items():
logger.info(" %s = %s", key, value)
save_json(
test_metrics,
os.path.join(training_args.output_dir, "test_results.json"))
eval_results.update(test_metrics)
if training_args.predict_with_generate:
test_preds = tokenizer.batch_decode(
test_output.predictions,
skip_special_tokens=True,
clean_up_tokenization_spaces=True)
test_preds = lmap(str.strip, test_preds)
write_txt_file(
test_preds,
os.path.join(training_args.output_dir,
"test_generations.txt"))
if trainer.is_world_process_zero():
save_json(eval_results, "all_results.json")
return eval_results
def main():
parser = MyArgumentParser((InferenceArguments, ))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
(args, ) = parser.parse_json_file(
json_file=os.path.abspath(sys.argv[1]))
else:
(args, ) = parser.parse_args_into_dataclasses()
params = dict(
pretrained_model_name_or_path=args.model_name_or_path,
cache_dir=args.cache_dir,
)
config = AutoConfig.from_pretrained(**params)
tokenizer = AutoTokenizer.from_pretrained(**params)
model = AutoModelForSeq2SeqLM.from_pretrained(config=config, **params)
if args.model_parameters:
print("====== MODEL PARAMETER LOADING... ======\n"
f" {args.model_parameters}")
model.load_state_dict(torch.load(args.model_parameters))
max_length = args.test_max_target_length
# set num_beams for evaluation
num_beams = args.num_beams if args.num_beams else model.config.num_beams
test_dataset = Seq2SeqDataset(
tokenizer=tokenizer,
type_path='test',
data_dir=args.data_dir,
max_target_length=args.test_max_target_length,
max_source_length=args.max_source_length,
)
test_sampler = SequentialSampler(test_dataset)
data_collator = Seq2SeqDataCollator(tokenizer, args)
test_dataloader = DataLoader(
test_dataset,
sampler=test_sampler,
batch_size=args.per_device_test_batch_size,
collate_fn=data_collator,
drop_last=False,
)
# prediction_loop
description = "Prediction"
batch_size = test_dataloader.batch_size
num_examples = len(test_dataloader.dataset)
print(f"***** Running {description} *****")
print(f" Num examples = {num_examples}")
print(f" Batch size = {batch_size}")
device = "cuda" if torch.cuda.is_available() else "cpu"
model = model.to(device)
res = []
for step, inputs in enumerate(test_dataloader):
# prediction_step, generative based
has_labels = "labels" in inputs # False
# _prepare_inputs
# 1. device로 보내기
# 2. memory에 _past 올리기
for k, v in inputs.items():
if isinstance(v, torch.Tensor):
inputs[k] = v.to(device)
gen_kwargs = {"max_length": max_length, "num_beams": num_beams}
generated_tokens = model.generate(
inputs['input_ids'],
attention_mask=inputs['attention_mask'],
**gen_kwargs,
)
# in case the batch is shorter than max length, the output should be padded
if generated_tokens.shape[-1] < gen_kwargs["max_length"]:
# If PAD token is not defined at least EOS token has to be defined
padded_tensor = tokenizer.pad_token_id * torch.ones(
(generated_tokens.shape[0], gen_kwargs["max_length"]),
dtype=generated_tokens.dtype,
device=generated_tokens.device,
)
padded_tensor[:, :generated_tokens.shape[-1]] = generated_tokens
generated_tokens = padded_tensor
loss = None
labels = None
res.extend(list(generated_tokens))
submit(args, tokenizer, res)
print("Finished!")