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Fix meta load tensor imcompatible issue #7073

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Merged
loadams merged 2 commits into from
Feb 24, 2025
Merged

Fix meta load tensor imcompatible issue #7073

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Fix meta load tensor imcompatible issue
Yejing-Lai Feb 24, 2025
cf3f189
Merge branch 'master' into lyj/fix_meta
tjruwase Feb 24, 2025
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3 changes: 2 additions & 1 deletion deepspeed/module_inject/layers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,8 @@ def move(tensor, device):
# to save host resources when DP > 1。

if tensor.is_meta:
return torch.empty_like(tensor, device=device)
# Keep tensor in meta device if tensor is meta.
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return tensor
else:
# Using new tensors help in freeing memory (after split for example) was done before by calling clone().
# Using copy=True instead of clone() will help in case of cpu --> cpu.
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