Merge remote-tracking branch 'origin/ofa/finetune_loss' into ofa/finetune

# Conflicts:
#	tests/trainers/test_ofa_trainer.py
This commit is contained in:
行嗔
2022-10-25 11:48:03 +08:00
4 changed files with 23 additions and 17 deletions

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@@ -129,10 +129,9 @@ class OFATrainer(EpochBasedTrainer):
def train_step(self, model, inputs):
model.train()
model_outputs = model.forward(inputs)
loss, sample_size, logging_output = self.criterion(
model_outputs, inputs)
train_outputs = {'loss': loss}
# model_outputs = model.forward(inputs)
loss, sample_size, logging_output = self.criterion(model, inputs)
train_outputs = {'loss': loss / 100}
# add model output info to log
if 'log_vars' not in train_outputs:
default_keys_pattern = ['loss']

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@@ -123,7 +123,7 @@ class AdjustLabelSmoothedCrossEntropyCriterion(_Loss):
self.padding_idx = args.tokenizer.pad_token_id
self.args = args
def forward(self, output, sample, update_num=0, reduce=True):
def forward(self, model, sample, update_num=0, reduce=True):
"""Compute the loss for the given sample.
Returns a tuple with three elements:
@@ -131,15 +131,20 @@ class AdjustLabelSmoothedCrossEntropyCriterion(_Loss):
2) the sample size, which is used as the denominator for the gradient
3) logging outputs to display while training
"""
if 'labels' in sample:
del sample['labels']
if 'samples' in sample:
del sample['samples']
if self.use_rdrop:
construct_rdrop_sample(sample)
output = model.model(**sample['net_input'])
loss, nll_loss, ntokens = self.compute_loss(
output, sample, update_num, reduce=reduce)
output.logits, sample, update_num, reduce=reduce)
sample_size = (
sample['target'].size(0) if self.sentence_avg else ntokens)
logging_output = {
'loss': loss.data,
'loss': loss.data / 100,
'nll_loss': nll_loss.data,
'ntokens': sample['ntokens'],
'nsentences': sample['nsentences'],
@@ -147,19 +152,18 @@ class AdjustLabelSmoothedCrossEntropyCriterion(_Loss):
}
return loss, sample_size, logging_output
def get_lprobs_and_target(self, net_output, sample):
def get_lprobs_and_target(self, logits, sample):
conf = sample['conf'][:, None, None] if 'conf' in sample and sample[
'conf'] is not None else 1
constraint_masks = None
if 'constraint_masks' in sample and sample[
'constraint_masks'] is not None:
constraint_masks = sample['constraint_masks']
net_output[0].masked_fill_(~constraint_masks, -math.inf)
logits.masked_fill_(~constraint_masks, -math.inf)
if self.constraint_start is not None and self.constraint_end is not None:
net_output[0][:, :, 4:self.constraint_start] = -math.inf
net_output[0][:, :, self.constraint_end:] = -math.inf
lprobs = F.log_softmax(
net_output[0], dim=-1, dtype=torch.float32) * conf
logits[:, :, 4:self.constraint_start] = -math.inf
logits[:, :, self.constraint_end:] = -math.inf
lprobs = F.log_softmax(logits, dim=-1, dtype=torch.float32) * conf
target = sample['target']
if self.ignore_prefix_size > 0:
lprobs = lprobs[:, self.ignore_prefix_size:, :].contiguous()
@@ -180,9 +184,9 @@ class AdjustLabelSmoothedCrossEntropyCriterion(_Loss):
return lprobs.view(-1,
lprobs.size(-1)), target.view(-1), constraint_masks
def compute_loss(self, net_output, sample, update_num, reduce=True):
def compute_loss(self, logits, sample, update_num, reduce=True):
lprobs, target, constraint_masks = self.get_lprobs_and_target(
net_output, sample)
logits, sample)
if constraint_masks is not None:
constraint_masks = constraint_masks[target != self.padding_idx]
lprobs = lprobs[target != self.padding_idx]

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@@ -1,5 +1,7 @@
# Copyright (c) Alibaba, Inc. and its affiliates.
import glob
import os
import os.path as osp
import shutil
import unittest
@@ -57,7 +59,7 @@ class TestOfaTrainer(unittest.TestCase):
'report_accuracy': False,
'sample_patch_num': 196,
'sentence_avg': False,
'use_rdrop': False},
'use_rdrop': True},
'hooks': [{'type': 'BestCkptSaverHook',
'metric_key': 'bleu-4',
'interval': 100},

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@@ -0,0 +1 @@
{"framework": "pytorch", "task": "image-captioning", "model": {"type": "ofa", "beam_search": {"beam_size": 5, "max_len_b": 16, "min_len": 1, "no_repeat_ngram_size": 0}, "seed": 7, "max_src_length": 256, "language": "en", "gen_type": "generation", "patch_image_size": 480, "max_image_size": 480, "imagenet_default_mean_and_std": false}, "pipeline": {"type": "image-captioning"}, "dataset": {"column_map": {"text": "caption"}}, "train": {"work_dir": "work/ckpts/caption", "max_epochs": 1, "use_fp16": true, "dataloader": {"batch_size_per_gpu": 4, "workers_per_gpu": 0}, "lr_scheduler": {"name": "polynomial_decay", "warmup_proportion": 0.01, "lr_end": 1e-07}, "lr_scheduler_hook": {"type": "LrSchedulerHook", "by_epoch": false}, "optimizer": {"type": "AdamW", "lr": 5e-05, "weight_decay": 0.01}, "optimizer_hook": {"type": "TorchAMPOptimizerHook", "cumulative_iters": 1, "grad_clip": {"max_norm": 1.0, "norm_type": 2}, "loss_keys": "loss"}, "criterion": {"name": "AdjustLabelSmoothedCrossEntropyCriterion", "constraint_range": null, "drop_worst_after": 0, "drop_worst_ratio": 0.0, "ignore_eos": false, "ignore_prefix_size": 0, "label_smoothing": 0.0, "reg_alpha": 1.0, "report_accuracy": false, "sample_patch_num": 196, "sentence_avg": false, "use_rdrop": true}, "hooks": [{"type": "BestCkptSaverHook", "metric_key": "bleu-4", "interval": 100}, {"type": "TextLoggerHook", "interval": 1}, {"type": "IterTimerHook"}, {"type": "EvaluationHook", "by_epoch": true, "interval": 1}]}, "evaluation": {"dataloader": {"batch_size_per_gpu": 4, "workers_per_gpu": 0}, "metrics": [{"type": "bleu", "eval_tokenized_bleu": false, "ref_name": "labels", "hyp_name": "caption"}]}, "preprocessor": []}