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[Bugfix] Remove contiguous output req for context parallel MLA (#25414)

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Signed-off-by: Michael Goin <mgoin64@gmail.com>
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Michael Goin 2025-09-22 23:26:32 -04:00 committed by GitHub
parent eea1783989
commit 78237e43bf
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vllm/attention/ops/common.py
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@ -134,6 +134,5 @@ def cp_lse_ag_out_rs(cp_attn_out: torch.Tensor,
cp_attn_lse = cp_attn_lse.contiguous() cp_attn_lse = cp_attn_lse.contiguous()
lses = cp_group.all_gather(cp_attn_lse, dim=0).view_as(lses) lses = cp_group.all_gather(cp_attn_lse, dim=0).view_as(lses)
out, _ = correct_attn_out(cp_attn_out, lses, cp_group.rank_in_group, ctx) out, _ = correct_attn_out(cp_attn_out, lses, cp_group.rank_in_group, ctx)
assert out.is_contiguous()
out = cp_group.reduce_scatter(out, dim=1) out = cp_group.reduce_scatter(out, dim=1)
return out return out