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[Bugfix] Fix _synced_weight_loader (#24565)

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Signed-off-by: Kyuyeun Kim <kyuyeunk@google.com>
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Kyuyeun Kim 2025-09-11 01:52:33 -07:00 committed by GitHub
parent 0fc36463e0
commit ed5ae4aace
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1 changed files with 2 additions and 1 deletions
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vllm/model_executor/utils.py
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@ -52,10 +52,11 @@ def set_weight_attrs(
def _make_synced_weight_loader(original_weight_loader):
def _synced_weight_loader(param, *args, **kwargs):
original_weight_loader(param, *args, **kwargs)
out = original_weight_loader(param, *args, **kwargs)
# torch._sync doesn't support, is not needed for CPU tensors.
if param.device != torch.device("cpu"):
torch._sync(param)
return out
return _synced_weight_loader