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[colossal-llama2] fix tensor data update for gemini loss calculation #5442

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Mar 11, 2024
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[colossal-llama2] fix tensor data update for gemini loss calculation #5442

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1 change: 1 addition & 0 deletions applications/Colossal-LLaMA-2/train.py
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,7 @@ def format_numel_str(numel: int) -> str:

def all_reduce_mean(tensor: torch.Tensor) -> torch.Tensor:
dist.all_reduce(tensor=tensor, op=dist.ReduceOp.SUM)
tensor = tensor.data
tensor.div_(dist.get_world_size())
return tensor

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