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621 lines
26 KiB
621 lines
26 KiB
# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Contains wav2vec2 model."""
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import json
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import math
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import os
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import re
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import time
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from collections import defaultdict
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from collections import OrderedDict
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from contextlib import nullcontext
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import jsonlines
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import numpy as np
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import paddle
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from paddle import distributed as dist
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from paddlespeech.s2t.frontend.featurizer import TextFeaturizer
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from paddlespeech.s2t.io.dataloader import DataLoaderFactory
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from paddlespeech.s2t.models.wav2vec2.processing.speech_augmentation import TimeDomainSpecAugment
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from paddlespeech.s2t.models.wav2vec2.wav2vec2_ASR import Wav2vec2ASR
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from paddlespeech.s2t.training.optimizer import OptimizerFactory
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from paddlespeech.s2t.training.reporter import ObsScope
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from paddlespeech.s2t.training.reporter import report
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from paddlespeech.s2t.training.scheduler import LRSchedulerFactory
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from paddlespeech.s2t.training.timer import Timer
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from paddlespeech.s2t.training.trainer import Trainer
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from paddlespeech.s2t.utils import error_rate
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from paddlespeech.s2t.utils import layer_tools
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from paddlespeech.s2t.utils import mp_tools
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from paddlespeech.s2t.utils.log import Log
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from paddlespeech.s2t.utils.utility import UpdateConfig
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logger = Log(__name__).getlog()
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class Wav2Vec2ASRTrainer(Trainer):
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def __init__(self, config, args):
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super().__init__(config, args)
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self.avg_train_loss = 0.0
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def update_average(self, batch_index, loss):
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"""Update running average of the loss.
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Arguments
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---------
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batch_index : int
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current batch index
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loss : paddle.tensor
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detached loss, a single float value.
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"""
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if math.isfinite(loss):
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self.avg_train_loss -= self.avg_train_loss / (batch_index + 1)
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self.avg_train_loss += loss / (batch_index + 1)
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def before_train(self):
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from_scratch = self.resume_or_scratch()
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if from_scratch:
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# scratch: save init model, i.e. 0 epoch
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self.save(tag='init', infos=None)
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else:
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# resume: train next_epoch and next_iteration
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self.epoch += 1
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logger.info(
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f"Resume train: epoch {self.epoch }, step {self.iteration}!")
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self.maybe_batch_sampler_step()
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def train_batch(self, batch_index, batch, msg):
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train_conf = self.config
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start = time.time()
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# forward
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utt, wav, wavs_lens, target, target_lens = batch
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wavs_lens_rate = wavs_lens / wav.shape[1]
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wav = wav[:, :, 0]
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if hasattr(train_conf, 'audio_augment'):
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wav = self.speech_augmentation(wav, wavs_lens_rate)
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loss = self.model(wav, wavs_lens_rate, target, target_lens)
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# loss div by `batch_size * accum_grad`
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loss /= train_conf.accum_grad
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# update self.avg_train_loss
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self.update_average(batch_index, float(loss))
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# loss backward
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if (batch_index + 1) % train_conf.accum_grad != 0:
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# Disable gradient synchronizations across DDP processes.
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# Within this context, gradients will be accumulated on module
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# variables, which will later be synchronized.
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# When using cpu w/o DDP, model does not have `no_sync`
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context = self.model.no_sync if (hasattr(self.model, "no_sync") and
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self.parallel) else nullcontext
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else:
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# Used for single gpu training and DDP gradient synchronization
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# processes.
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context = nullcontext
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with context():
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loss.backward()
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layer_tools.print_grads(self.model, print_func=None)
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# optimizer step old
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if (batch_index + 1) % train_conf.accum_grad == 0:
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self.model_optimizer.step()
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self.model_optimizer.clear_grad()
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if not train_conf.freeze_wav2vec2:
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self.wav2vec2_optimizer.step()
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self.wav2vec2_optimizer.clear_grad()
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if self.config.model_scheduler != 'newbobscheduler':
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self.model_lr_scheduler.step()
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if self.config.wav2vec2_scheduler != 'newbobscheduler':
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if not train_conf.freeze_wav2vec2:
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self.wav2vec2_lr_scheduler.step()
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self.iteration += 1
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losses_np = {'loss': self.avg_train_loss * train_conf.accum_grad}
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iteration_time = time.time() - start
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for k, v in losses_np.items():
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report(k, v)
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report("batch_size", self.config.batch_size)
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report("accum", train_conf.accum_grad)
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report("step_cost", iteration_time)
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if (batch_index + 1) % train_conf.accum_grad == 0:
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if dist.get_rank() == 0 and self.visualizer:
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losses_np_v = losses_np.copy()
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losses_np_v.update({
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"model_lr": self.model_lr_scheduler(),
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"wav2vec2_lr": self.wav2vec2_lr_scheduler()
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})
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for key, val in losses_np_v.items():
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self.visualizer.add_scalar(
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tag='train/' + key, value=val, step=self.iteration - 1)
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@paddle.no_grad()
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def valid(self):
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self.model.eval()
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if not self.use_streamdata:
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logger.info(
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f"Valid Total Examples: {len(self.valid_loader.dataset)}")
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valid_losses = defaultdict(list)
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num_seen_utts = 1
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total_loss = 0.0
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for i, batch in enumerate(self.valid_loader):
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utt, wav, wavs_lens, target, target_lens = batch
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wavs_lens_rate = wavs_lens / wav.shape[1]
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wav = wav[:, :, 0]
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loss = self.model(wav, wavs_lens_rate, target, target_lens)
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if math.isfinite(float(loss)):
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num_utts = batch[1].shape[0]
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num_seen_utts += num_utts
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total_loss += float(loss) * num_utts
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valid_losses['val_loss'].append(float(loss))
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if (i + 1) % self.config.log_interval == 0:
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valid_dump = {k: np.mean(v) for k, v in valid_losses.items()}
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valid_dump['val_history_loss'] = total_loss / num_seen_utts
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# logging
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msg = f"Valid: Rank: {dist.get_rank()}, "
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msg += "epoch: {}, ".format(self.epoch)
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msg += "step: {}, ".format(self.iteration)
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if not self.use_streamdata:
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msg += "batch: {}/{}, ".format(i + 1,
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len(self.valid_loader))
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msg += ', '.join('{}: {:>.6f}'.format(k, v)
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for k, v in valid_dump.items())
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logger.info(msg)
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logger.info('Rank {} Val info val_loss {}'.format(
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dist.get_rank(), total_loss / num_seen_utts))
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return total_loss, num_seen_utts
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@mp_tools.rank_zero_only
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def save(self, tag=None, infos: dict=None):
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"""Save checkpoint (model parameters and optimizer states).
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Args:
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tag (int or str, optional): None for step, else using tag, e.g epoch. Defaults to None.
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infos (dict, optional): meta data to save. Defaults to None.
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"""
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infos = infos if infos else dict()
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infos.update({
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"epoch": self.epoch,
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"model_lr": self.model_optimizer.get_lr(),
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"wav2vec2_lr": self.wav2vec2_optimizer.get_lr()
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})
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checkpoint_path = os.path.join(
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self.checkpoint_dir,
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"{}".format(self.iteration if tag is None else tag))
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model_dict = self.model.state_dict()
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params_path = checkpoint_path + ".pdparams"
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paddle.save(model_dict, params_path)
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logger.info("Saved model to {}".format(params_path))
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model_opt_dict = self.model_optimizer.state_dict()
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wav2vec2_opt_dict = self.wav2vec2_optimizer.state_dict()
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opt_dict = {'model': model_opt_dict, 'wav2vec2': wav2vec2_opt_dict}
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optimizer_path = checkpoint_path + ".pdopt"
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paddle.save(opt_dict, optimizer_path)
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logger.info("Saved optimzier state to {}".format(optimizer_path))
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scheduler_dict = {}
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if self.config.model_scheduler == 'newbobscheduler':
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scheduler_dict['model'] = self.model_lr_scheduler.save()
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if self.config.wav2vec2_scheduler == 'newbobscheduler':
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scheduler_dict['wav2vec2'] = self.wav2vec2_lr_scheduler.save()
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if scheduler_dict:
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scheduler_path = checkpoint_path + ".pdlrs"
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paddle.save(scheduler_dict, scheduler_path)
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logger.info("Saved scheduler state to {}".format(scheduler_path))
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info_path = re.sub('.pdparams$', '.json', params_path)
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infos = {} if infos is None else infos
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with open(info_path, 'w') as fout:
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data = json.dumps(infos)
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fout.write(data)
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def resume_or_scratch(self):
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"""Resume from latest checkpoint at checkpoints in the output
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directory or load a specified checkpoint.
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If ``args.checkpoint_path`` is not None, load the checkpoint, else
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resume training.
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"""
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scratch = None
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if self.args.resume:
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# just restore ckpt
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# lr will resotre from optimizer ckpt
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resume_json_path = os.path.join(self.checkpoint_dir,
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self.args.resume + '.json')
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with open(resume_json_path, 'r') as f:
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resume_json = json.load(f)
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self.iteration = 0
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self.epoch = resume_json["epoch"]
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# resotre model from *.pdparams
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params_path = os.path.join(self.checkpoint_dir,
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"{}".format(self.epoch)) + '.pdparams'
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model_dict = paddle.load(params_path)
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self.model.set_state_dict(model_dict)
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# resotre optimizer from *.pdopt
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optimizer_path = os.path.join(self.checkpoint_dir,
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"{}".format(self.epoch)) + '.pdopt'
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optimizer_dict = paddle.load(optimizer_path)
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self.model_optimizer.set_state_dict(optimizer_dict['model'])
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self.wav2vec2_optimizer.set_state_dict(optimizer_dict['wav2vec2'])
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# resotre lr_scheduler from *.pdlrs
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scheduler_path = os.path.join(self.checkpoint_dir,
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"{}".format(self.epoch)) + '.pdlrs'
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if os.path.isfile(os.path.join(scheduler_path)):
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scheduler_dict = paddle.load(scheduler_path)
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if self.config.model_scheduler == 'newbobscheduler':
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self.model_lr_scheduler.load(scheduler_dict['model'])
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if self.config.wav2vec2_scheduler == 'newbobscheduler':
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self.wav2vec2_lr_scheduler.load(scheduler_dict['wav2vec2'])
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logger.info(
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f"Restore ckpt: epoch {self.epoch }, step {self.iteration}!")
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scratch = False
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else:
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self.iteration = 0
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self.epoch = 0
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scratch = True
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logger.info("Init from scratch!")
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return scratch
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def do_train(self):
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"""The training process control by step."""
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# !!!IMPORTANT!!!
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# Try to export the model by script, if fails, we should refine
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# the code to satisfy the script export requirements
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# script_model = paddle.jit.to_static(self.model)
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# script_model_path = str(self.checkpoint_dir / 'init')
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# paddle.jit.save(script_model, script_model_path)
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self.before_train()
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if not self.use_streamdata:
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logger.info(
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f"Train Total Examples: {len(self.train_loader.dataset)}")
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while self.epoch < self.config.n_epoch:
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with Timer("Epoch-Train Time Cost: {}"):
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self.model.train()
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try:
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data_start_time = time.time()
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for batch_index, batch in enumerate(self.train_loader):
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dataload_time = time.time() - data_start_time
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msg = "Train:"
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observation = OrderedDict()
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with ObsScope(observation):
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report("Rank", dist.get_rank())
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report("epoch", self.epoch)
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report('step', self.iteration)
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report("model_lr", self.model_optimizer.get_lr())
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report("wav2vec2_lr",
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self.wav2vec2_optimizer.get_lr())
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self.train_batch(batch_index, batch, msg)
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self.after_train_batch()
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report('iter', batch_index + 1)
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if not self.use_streamdata:
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report('total', len(self.train_loader))
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report('reader_cost', dataload_time)
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observation['batch_cost'] = observation[
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'reader_cost'] + observation['step_cost']
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observation['samples'] = observation['batch_size']
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observation['ips,samples/s'] = observation[
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'batch_size'] / observation['batch_cost']
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for k, v in observation.items():
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msg += f" {k.split(',')[0]}: "
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msg += f"{v:>.8f}" if isinstance(v,
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float) else f"{v}"
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msg += f" {k.split(',')[1]}" if len(
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k.split(',')) == 2 else ""
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msg += ","
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msg = msg[:-1] # remove the last ","
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if (batch_index + 1) % self.config.log_interval == 0:
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logger.info(msg)
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data_start_time = time.time()
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except Exception as e:
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logger.error(e)
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raise e
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with Timer("Eval Time Cost: {}"):
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total_loss, num_seen_utts = self.valid()
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if dist.get_world_size() > 1:
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num_seen_utts = paddle.to_tensor(num_seen_utts)
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# the default operator in all_reduce function is sum.
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dist.all_reduce(num_seen_utts)
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total_loss = paddle.to_tensor(total_loss)
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dist.all_reduce(total_loss)
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cv_loss = total_loss / num_seen_utts
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cv_loss = float(cv_loss)
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else:
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cv_loss = total_loss / num_seen_utts
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logger.info(
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'Epoch {} Val info val_loss {}'.format(self.epoch, cv_loss))
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if self.visualizer:
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self.visualizer.add_scalar(
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tag='eval/cv_loss', value=cv_loss, step=self.epoch)
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self.visualizer.add_scalar(
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tag='eval/model_lr',
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value=self.model_lr_scheduler(),
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step=self.epoch)
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self.visualizer.add_scalar(
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tag='eval/wav2vec2_lr',
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value=self.wav2vec2_lr_scheduler(),
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step=self.epoch)
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if self.config.model_scheduler == 'newbobscheduler':
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self.model_lr_scheduler.step(cv_loss)
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if self.config.wav2vec2_scheduler == 'newbobscheduler':
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if not self.config.freeze_wav2vec2:
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self.wav2vec2_lr_scheduler.step(cv_loss)
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self.save(tag=self.epoch, infos={'val_loss': cv_loss})
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self.new_epoch()
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def setup_dataloader(self):
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config = self.config.clone()
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self.use_streamdata = config.get("use_stream_data", False)
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if self.train:
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self.train_loader = DataLoaderFactory.get_dataloader(
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'train', config, self.args)
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self.valid_loader = DataLoaderFactory.get_dataloader(
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'valid', config, self.args)
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logger.info("Setup train/valid Dataloader!")
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else:
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decode_batch_size = config.get('decode', dict()).get(
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'decode_batch_size', 1)
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self.test_loader = DataLoaderFactory.get_dataloader('test', config,
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self.args)
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self.align_loader = DataLoaderFactory.get_dataloader(
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'align', config, self.args)
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logger.info("Setup test/align Dataloader!")
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def setup_model(self):
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config = self.config
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model_conf = config
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with UpdateConfig(model_conf):
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if self.train:
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model_conf.input_dim = self.train_loader.feat_dim
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model_conf.output_dim = self.train_loader.vocab_size
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else:
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model_conf.input_dim = self.test_loader.feat_dim
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model_conf.output_dim = self.test_loader.vocab_size
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model = Wav2vec2ASR.from_config(model_conf)
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model_dict = paddle.load(config.wav2vec2_params_path)
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model.wav2vec2.set_state_dict(model_dict)
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if self.parallel:
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model = paddle.DataParallel(model, find_unused_parameters=True)
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logger.info(f"{model}")
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layer_tools.print_params(model, logger.info)
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self.model = model
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logger.info("Setup model!")
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# setup speech augmentation for wav2vec2
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if hasattr(config, 'audio_augment') and self.train:
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self.speech_augmentation = TimeDomainSpecAugment(
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**config.audio_augment)
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if not self.train:
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return
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train_config = config
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model_optim_type = train_config.model_optim
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model_optim_conf = train_config.model_optim_conf
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wav2vec2_optim_type = train_config.model_optim
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wav2vec2_optim_conf = train_config.wav2vec2_optim_conf
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model_scheduler_type = train_config.model_scheduler
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model_scheduler_conf = train_config.model_scheduler_conf
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wav2vec2_scheduler_type = train_config.wav2vec2_scheduler
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wav2vec2_scheduler_conf = train_config.wav2vec2_scheduler_conf
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model_scheduler_args = dict(
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**{"learning_rate": model_optim_conf.lr,
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"verbose": False}, **(dict(model_scheduler_conf)))
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wav2vec2_scheduler_args = dict(
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**{"learning_rate": wav2vec2_optim_conf.lr,
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"verbose": False}, **(dict(wav2vec2_scheduler_conf)))
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model_lr_scheduler = LRSchedulerFactory.from_args(model_scheduler_type,
|
|
model_scheduler_args)
|
|
wav2vec2_lr_scheduler = LRSchedulerFactory.from_args(
|
|
wav2vec2_scheduler_type, wav2vec2_scheduler_args)
|
|
|
|
def optimizer_args(
|
|
config,
|
|
optim_type,
|
|
optim_conf,
|
|
parameters,
|
|
lr_scheduler=None, ):
|
|
train_config = config
|
|
optim_arg = dict(optim_conf)
|
|
optim_arg.update({
|
|
"grad_clip":
|
|
train_config.global_grad_clip,
|
|
"learning_rate":
|
|
lr_scheduler if lr_scheduler else optim_conf.lr,
|
|
"parameters":
|
|
parameters
|
|
})
|
|
return optim_arg
|
|
|
|
model_optimizer_args = optimizer_args(config, model_optim_type,
|
|
model_optim_conf, [{
|
|
'params':
|
|
model._layers.enc.parameters()
|
|
}, {
|
|
'params':
|
|
model._layers.ctc.parameters()
|
|
}] if self.parallel else [{
|
|
'params':
|
|
model.enc.parameters()
|
|
}, {
|
|
'params':
|
|
model.ctc.parameters()
|
|
}], model_lr_scheduler)
|
|
wav2vec2_optimizer_args = optimizer_args(
|
|
config, wav2vec2_optim_type, wav2vec2_optim_conf,
|
|
model._layers.wav2vec2.parameters() if self.parallel else
|
|
model.wav2vec2.parameters(), wav2vec2_lr_scheduler)
|
|
model_optimizer = OptimizerFactory.from_args(model_optim_type,
|
|
model_optimizer_args)
|
|
wav2vec2_optimizer = OptimizerFactory.from_args(wav2vec2_optim_type,
|
|
wav2vec2_optimizer_args)
|
|
|
|
self.model_optimizer = model_optimizer
|
|
self.wav2vec2_optimizer = wav2vec2_optimizer
|
|
self.model_lr_scheduler = model_lr_scheduler
|
|
self.wav2vec2_lr_scheduler = wav2vec2_lr_scheduler
|
|
logger.info("Setup optimizer/lr_scheduler!")
|
|
|
|
|
|
class Wav2Vec2ASRTester(Wav2Vec2ASRTrainer):
|
|
def __init__(self, config, args):
|
|
super().__init__(config, args)
|
|
self.text_featurizer = TextFeaturizer(
|
|
unit_type=config.unit_type, vocab=config.vocab_filepath)
|
|
self.vocab_list = self.text_featurizer.vocab_list
|
|
|
|
def id2token(self, texts, texts_len):
|
|
""" ord() id to chr() chr """
|
|
trans = []
|
|
for text, n in zip(texts, texts_len):
|
|
n = n.numpy().item()
|
|
ids = text[:n]
|
|
trans.append(self.text_featurizer.defeaturize(ids.numpy().tolist()))
|
|
return trans
|
|
|
|
def compute_metrics(self,
|
|
utts,
|
|
audio,
|
|
audio_len,
|
|
texts,
|
|
texts_len,
|
|
fout=None):
|
|
decode_cfg = self.config.decode
|
|
errors_sum, len_refs, num_ins = 0.0, 0, 0
|
|
errors_func = error_rate.char_errors if decode_cfg.error_rate_type == 'cer' else error_rate.word_errors
|
|
error_rate_func = error_rate.cer if decode_cfg.error_rate_type == 'cer' else error_rate.wer
|
|
|
|
start_time = time.time()
|
|
target_transcripts = self.id2token(texts, texts_len)
|
|
result_transcripts, result_tokenids = self.model.decode(
|
|
audio,
|
|
text_feature=self.text_featurizer,
|
|
decoding_method=decode_cfg.decoding_method,
|
|
beam_size=decode_cfg.beam_size)
|
|
decode_time = time.time() - start_time
|
|
|
|
for utt, target, result, rec_tids in zip(
|
|
utts, target_transcripts, result_transcripts, result_tokenids):
|
|
errors, len_ref = errors_func(target, result)
|
|
errors_sum += errors
|
|
len_refs += len_ref
|
|
num_ins += 1
|
|
if fout:
|
|
fout.write({
|
|
"utt": utt,
|
|
"refs": [target],
|
|
"hyps": [result],
|
|
"hyps_tokenid": [rec_tids],
|
|
})
|
|
logger.info(f"Utt: {utt}")
|
|
logger.info(f"Ref: {target}")
|
|
logger.info(f"Hyp: {result}")
|
|
logger.info("One example error rate [%s] = %f" % (
|
|
decode_cfg.error_rate_type, error_rate_func(target, result)))
|
|
|
|
return dict(
|
|
errors_sum=errors_sum,
|
|
len_refs=len_refs,
|
|
num_ins=num_ins, # num examples
|
|
error_rate=errors_sum / len_refs,
|
|
error_rate_type=decode_cfg.error_rate_type,
|
|
num_frames=audio_len.sum().numpy().item(),
|
|
decode_time=decode_time)
|
|
|
|
@mp_tools.rank_zero_only
|
|
@paddle.no_grad()
|
|
def test(self):
|
|
logger.info(f"Test Total Examples: {len(self.test_loader.dataset)}")
|
|
self.model.eval()
|
|
|
|
error_rate_type = None
|
|
errors_sum, len_refs, num_ins = 0.0, 0, 0
|
|
num_frames = 0.0
|
|
num_time = 0.0
|
|
# Initialized the decoder in model
|
|
decode_cfg = self.config.decode
|
|
vocab_list = self.vocab_list
|
|
decode_batch_size = decode_cfg.decode_batch_size
|
|
|
|
with jsonlines.open(self.args.result_file, 'w') as fout:
|
|
for i, batch in enumerate(self.test_loader):
|
|
metrics = self.compute_metrics(*batch, fout=fout)
|
|
num_frames += metrics['num_frames']
|
|
num_time += metrics["decode_time"]
|
|
errors_sum += metrics['errors_sum']
|
|
len_refs += metrics['len_refs']
|
|
num_ins += metrics['num_ins']
|
|
error_rate_type = metrics['error_rate_type']
|
|
rtf = num_time / (num_frames)
|
|
logger.info(
|
|
"RTF: %f, Error rate [%s] (%d/?) = %f" %
|
|
(rtf, error_rate_type, num_ins, errors_sum / len_refs))
|
|
|
|
# logging
|
|
msg = "Test: "
|
|
msg += "epoch: {}, ".format(self.epoch)
|
|
msg += "step: {}, ".format(self.iteration)
|
|
msg += "Final error rate [%s] (%d/%d) = %f" % (
|
|
error_rate_type, num_ins, num_ins, errors_sum / len_refs)
|
|
logger.info(msg)
|
|
|
|
err_meta_path = os.path.splitext(self.args.result_file)[0] + '.err'
|
|
err_type_str = "{}".format(error_rate_type)
|
|
with open(err_meta_path, 'w') as f:
|
|
data = json.dumps({
|
|
"epoch":
|
|
self.epoch,
|
|
"step":
|
|
self.iteration,
|
|
"rtf":
|
|
rtf,
|
|
error_rate_type:
|
|
errors_sum / len_refs,
|
|
"dataset_hour": (num_frames) / 1000.0 / 3600.0,
|
|
"process_hour":
|
|
num_time / 1000.0 / 3600.0,
|
|
"num_examples":
|
|
num_ins,
|
|
"err_sum":
|
|
errors_sum,
|
|
"ref_len":
|
|
len_refs,
|
|
"decode_method":
|
|
self.config.decode.decoding_method,
|
|
})
|
|
f.write(data + '\n')
|