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[ROCM] Fix windows issues #2385

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Merged
micmelesse merged 9 commits into from
Apr 2, 2026
+5 −3
Merged

[ROCM] Fix windows issues #2385

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ba0fcc9
Initial FA-2 aiter Triton Windows build support
0xDELUXA Mar 23, 2026
7dc184d
minimize diff
micmelesse Mar 23, 2026
44f9b01
bump commit
micmelesse Mar 23, 2026
77e478e
bump commit
micmelesse Mar 24, 2026
4699922
minimize diff
micmelesse Mar 24, 2026
e39577d
bump commit
micmelesse Mar 24, 2026
c7c821a
bump aiter submodule
micmelesse Mar 25, 2026
d1013ef
bump aiter submodule to merged #2433
micmelesse Mar 26, 2026
50e2ab6
fix: guard distributed.py fallbacks with hasattr for Windows
micmelesse Mar 26, 2026
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6 changes: 4 additions & 2 deletions flash_attn/utils/distributed.py
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Original file line number Diff line number Diff line change
Expand Up @@ -9,9 +9,11 @@
# version of PyTorch. The following 4 lines are for backward compatibility with
# older PyTorch.
if "all_gather_into_tensor" not in dir(torch.distributed):
torch.distributed.all_gather_into_tensor = torch.distributed._all_gather_base
if hasattr(torch.distributed, "_all_gather_base"):
torch.distributed.all_gather_into_tensor = torch.distributed._all_gather_base
if "reduce_scatter_tensor" not in dir(torch.distributed):
torch.distributed.reduce_scatter_tensor = torch.distributed._reduce_scatter_base
if hasattr(torch.distributed, "_reduce_scatter_base"):
torch.distributed.reduce_scatter_tensor = torch.distributed._reduce_scatter_base


# Raw operation, does not support autograd, but does support async
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2 changes: 1 addition & 1 deletion third_party/aiter
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Submodule aiter updated 377 files