From b52fc0ec2886c66c8b480a9f761a0af561afff5b Mon Sep 17 00:00:00 2001
From: Shi Xian <40013335+R1ckShi@users.noreply.github.com>
Date: 星期三, 28 二月 2024 14:39:54 +0800
Subject: [PATCH] Merge pull request #1401 from alibaba-damo-academy/dev_gzf

---
 funasr/train_utils/trainer.py |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/funasr/train_utils/trainer.py b/funasr/train_utils/trainer.py
index 5b280bf..3b20596 100644
--- a/funasr/train_utils/trainer.py
+++ b/funasr/train_utils/trainer.py
@@ -14,6 +14,7 @@
 from funasr.train_utils.device_funcs import to_device
 from funasr.train_utils.recursive_op import recursive_average
 from funasr.train_utils.average_nbest_models import average_checkpoints
+from torch.distributed.fsdp.sharded_grad_scaler import ShardedGradScaler
 
 @contextmanager
 def maybe_autocast(enabled):
@@ -84,7 +85,9 @@
         self.batch_total = 0
         self.use_fp16 = use_fp16
         self.disable_gpu_cache = kwargs.get("disable_gpu_cache", True)
-        self.scaler = GradScaler(enabled=use_fp16) if use_fp16 else None
+        scaler = GradScaler(enabled=use_fp16) if use_fp16 else None
+        scaler = ShardedGradScaler(enabled=use_fp16) if use_ddp else scaler
+        self.scaler = scaler
         
     
         try:

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