From 15868f623089cf70983a8b4f435ff86e7f160b8a Mon Sep 17 00:00:00 2001
From: 游雁 <zhifu.gzf@alibaba-inc.com>
Date: 星期三, 06 十二月 2023 23:50:54 +0800
Subject: [PATCH] funasr2
---
funasr/cli/trainer.py | 78 +++++++++-----------------------------
1 files changed, 19 insertions(+), 59 deletions(-)
diff --git a/funasr/cli/trainer.py b/funasr/cli/trainer.py
index ee5af0f..686f387 100644
--- a/funasr/cli/trainer.py
+++ b/funasr/cli/trainer.py
@@ -5,6 +5,7 @@
from tqdm import tqdm
from contextlib import nullcontext
import torch.distributed as dist
+from funasr.torch_utils.recursive_op import recursive_average
class Trainer:
"""
@@ -56,6 +57,8 @@
self.start_epoch = 1
self.max_epoch = kwargs.get('max_epoch', 100)
self.local_rank = local_rank
+ self.rank = dist.get_rank()
+ self.world_size = dist.get_world_size()
self.use_ddp = use_ddp
self.use_fsdp = use_fsdp
self.device = torch.device("cuda", local_rank)
@@ -113,7 +116,7 @@
# self._validate_epoch(epoch)
if dist.get_rank() == 0:
self._save_checkpoint(epoch)
- # self.scheduler.step()
+ self.scheduler.step()
def _train_epoch(self, epoch):
"""
@@ -126,24 +129,34 @@
dynamic_ncols=True)
# Set the number of steps for gradient accumulation
- accumulation_steps = self.kwargs.get("accumulation_steps", 1)
+ accum_grad = self.kwargs.get("accum_grad", 1)
# Initialize the gradient accumulation
self.optim.zero_grad()
for batch_idx, batch in enumerate(self.dataloader_train):
batch = to_device(batch, self.device)
- my_context = self.model.no_sync if batch_idx % accumulation_steps != 0 else nullcontext
+ my_context = self.model.no_sync if batch_idx % accum_grad != 0 else nullcontext
with my_context():
retval = self.model(**batch)
loss, stats, weight = retval
-
+ stats = {k: v for k, v in stats.items() if v is not None}
+ if self.use_ddp or self.use_fsdp:
+ # Apply weighted averaging for loss and stats
+ loss = (loss * weight.type(loss.dtype)).sum()
+ # if distributed, this method can also apply all_reduce()
+ stats, weight = recursive_average(stats, weight, distributed=True)
+ # Now weight is summation over all workers
+ loss /= weight
+ # Multiply world_size because DistributedDataParallel
+ # automatically normalizes the gradient by world_size.
+ loss *= self.world_size
# Scale the loss since we're not updating for every mini-batch
- loss = loss / accumulation_steps
+ loss = loss / accum_grad
loss.backward()
# Perform an optimizer step only after accumulating enough gradients
- if (batch_idx + 1) % accumulation_steps == 0 or (batch_idx + 1) == len(self.dataloader_train):
+ if (batch_idx + 1) % accum_grad == 0 or (batch_idx + 1) == len(self.dataloader_train):
# Perform gradient clipping if it is set
if self.kwargs.get("grad_clip", None) is not None:
grad_norm = torch.nn.utils.clip_grad_norm_(
@@ -170,43 +183,6 @@
f"Training Epoch: {epoch + 1}/{self.max_epoch}, step {batch_idx}/{len(self.dataloader_train)} (loss: {loss.detach().float()})")
pbar.close()
-
- # def _train_epoch(self, epoch):
- # """
- # Defines the training process for a single epoch.
- # Should be implemented with the actual model training steps.
- #
- # Args:
- # epoch (int): The current epoch number.
- # """
- # self.model.train()
- # pbar = tqdm(colour="blue", desc=f"Training Epoch: {epoch + 1}", total=len(self.dataloader_train), dynamic_ncols=True)
- # for batch_idx, batch in enumerate(self.dataloader_train):
- # batch = to_device(batch, "cpu")
- # retval = self.model(**batch)
- # loss, stats, weight = retval
- # self.optim.zero_grad()
- # loss.backward()
- #
- # # compute the gradient norm to check if it is normal or not
- # grad_norm = torch.nn.utils.clip_grad_norm_(
- # self.model.parameters(),
- # max_norm=self.kwargs.get("grad_clip", 10.0),
- # norm_type=self.kwargs.get("grad_clip_type", 2.0),
- # )
- # if not torch.isfinite(grad_norm):
- # logging.warning(
- # f"The grad norm is {grad_norm}. Skipping updating the model."
- # )
- # continue
- # self.optim.step()
- # self.scheduler.step()
- # pbar.update(1)
- # pbar.set_description(
- # f"Training Epoch: {epoch + 1}/{self.max_epoch}, step {batch_idx}/{len(self.dataloader_train)} (loss: {loss.detach().float()})")
- #
- # pbar.close()
- #
def _validate_epoch(self, epoch):
"""
@@ -221,19 +197,3 @@
for data, target in self.dataloader_val:
# Implement the model validation steps here
pass
-
-# # Example usage
-# if __name__ == "__main__":
-# # Assuming the following objects have already been correctly created and initialized:
-# # model, optim, scheduler, dataloader_train, and dataloader_val.
-# trainer = Trainer(
-# max_epoch=10,
-# model=model,
-# optim=optim,
-# scheduler=scheduler,
-# dataloader_train=dataloader_train,
-# dataloader_val=dataloader_val,
-# output_dir='path_to_save_model',
-# resume='path_to_checkpoint_if_any'
-# )
-# trainer.run()
\ No newline at end of file
--
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