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Cherry-pick upstream hash top-k dtype fix #19

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Cherry-pick upstream hash top-k dtype fix #19

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7 changes: 7 additions & 0 deletions vllm/_custom_ops.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2414,6 +2414,13 @@ def topk_hash_softplus_sqrt(
input_tokens: torch.Tensor | None = None,
hash_indices_table: torch.Tensor | None = None,
) -> None:
if hash_indices_table is not None:
assert input_tokens is not None
if input_tokens.dtype != topk_indices.dtype:
input_tokens = input_tokens.to(dtype=topk_indices.dtype)
if hash_indices_table.dtype != topk_indices.dtype:
hash_indices_table = hash_indices_table.to(dtype=topk_indices.dtype)

torch.ops._moe_C.topk_softplus_sqrt(
topk_weights,
topk_indices,
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