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[None][fix] use_workspace_output only supports w4a8_mxfp4_mxfp8 (gpt-oss) for now. #9259

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[None][fix] use_workspace_output only supports w4a8_mxfp4_mxfp8 (gpt-oss) for now. #9259

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3 changes: 2 additions & 1 deletion tensorrt_llm/_torch/modules/fused_moe/fused_moe_trtllm_gen.py
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Original file line number Diff line number Diff line change
Expand Up @@ -503,7 +503,8 @@ def forward_impl(

moe_output: Optional[torch.Tensor] = None
use_workspace_output = False
if self.enable_alltoall and self.moe_alltoall_backend == "mnnvlthroughput":
# TODO: use_workspace_output only supports w4a8_mxfp4_mxfp8 (gpt-oss) for now
if self.enable_alltoall and self.moe_alltoall_backend == "mnnvlthroughput" and self.has_w4a8_mxfp4_mxfp8:
moe_output = self.moe_a2a.get_combine_payload_tensor_in_workspace(
runtime_max_tokens_per_rank, self.hidden_size, torch.bfloat16)
use_workspace_output = True
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