From e299cfecaf979833d9c4d7c70e44cb92ea066afe Mon Sep 17 00:00:00 2001
From: 游雁 <zhifu.gzf@alibaba-inc.com>
Date: 星期四, 09 五月 2024 20:02:37 +0800
Subject: [PATCH] total_time/accum_grad

---
 funasr/train_utils/trainer.py |   49 ++++++++++++++++++++++++++-----------------------
 1 files changed, 26 insertions(+), 23 deletions(-)

diff --git a/funasr/train_utils/trainer.py b/funasr/train_utils/trainer.py
index d46a21c..28fbb29 100644
--- a/funasr/train_utils/trainer.py
+++ b/funasr/train_utils/trainer.py
@@ -384,18 +384,19 @@
 
                 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)
-                    if self.use_ddp or self.use_fsdp:
-                        dist.all_reduce(weight, op=dist.ReduceOp.SUM)
-                    # Now weight is summation over all workers
-                    loss /= weight.sum()  # shape:[1] -> shape:[]
-                    # Multiply world_size because DistributedDataParallel
-                    # automatically normalizes the gradient by world_size.
-                    loss *= self.world_size
+                # 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)
+                #     if self.use_ddp or self.use_fsdp:
+                #         dist.all_reduce(weight, op=dist.ReduceOp.SUM)
+                #     # Now weight is summation over all workers
+                #     loss /= weight.sum()  # shape:[1] -> shape:[]
+                #     # Multiply world_size because DistributedDataParallel
+                #     # automatically normalizes the gradient by world_size.
+                #     loss *= self.world_size
+                loss *= self.world_size
                 # Scale the loss since we're not updating for every mini-batch
                 loss = loss / accum_grad
 
@@ -416,17 +417,6 @@
                         self.train_acc_avg * (self.step_in_epoch - 1)
                         + stats["acc"].detach().cpu().item()
                     ) / self.step_in_epoch
-                if self.use_ddp or self.use_fsdp:
-                    train_loss_avg = torch.tensor(self.train_loss_avg, dtype=torch.float32).to(
-                        self.device
-                    )
-                    train_acc_avg = torch.tensor(self.train_acc_avg, dtype=torch.float32).to(
-                        self.device
-                    )
-                    dist.all_reduce(train_loss_avg, op=dist.ReduceOp.SUM)
-                    dist.all_reduce(train_acc_avg, op=dist.ReduceOp.SUM)
-                    self.train_loss_avg = train_loss_avg.detach().cpu().item() / self.world_size
-                    self.train_acc_avg = train_acc_avg.detach().cpu().item() / self.world_size
 
             # Perform an optimizer step only after accumulating enough gradients
             if (batch_idx + 1) % accum_grad == 0:
@@ -457,6 +447,19 @@
                 optim.zero_grad(set_to_none=True)
                 total_time = f"{(time.perf_counter() - time5)/accum_grad:0.3f}"
                 time5 = time.perf_counter()
+
+                if self.use_ddp or self.use_fsdp:
+                    train_loss_avg = torch.tensor(self.train_loss_avg, dtype=torch.float32).to(
+                        self.device
+                    )
+                    train_acc_avg = torch.tensor(self.train_acc_avg, dtype=torch.float32).to(
+                        self.device
+                    )
+                    dist.all_reduce(train_loss_avg, op=dist.ReduceOp.SUM)
+                    dist.all_reduce(train_acc_avg, op=dist.ReduceOp.SUM)
+                    self.train_loss_avg = train_loss_avg.detach().cpu().item() / self.world_size
+                    self.train_acc_avg = train_acc_avg.detach().cpu().item() / self.world_size
+
                 speed_stats["optim_time"] = f"{time5 - time4:0.3f}"
 
                 speed_stats["total_time"] = total_time

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