---
id: pr-vllm-19717
repo: vllm-project/vllm
pr: 19717
title: '[Kernels][Bugfix] Use torch op for all kernels in FusedMoE forward.  Add additional testing for cudagraphs.'
author: bnellnm
date: '2025-06-25'
url: https://github.com/vllm-project/vllm/pull/19717
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 015fab8c2fa4db8776f7e91abd50371911673d88
inclusion_reason: defer
changed_paths:
- tests/kernels/moe/test_cutlass_moe.py
- tests/kernels/moe/test_moe.py
- tests/kernels/moe/test_nvfp4_moe.py
- tests/kernels/moe/test_pplx_cutlass_moe.py
- tests/kernels/moe/test_pplx_moe.py
- tests/kernels/quantization/test_block_fp8.py
- tests/kernels/utils.py
- vllm/envs.py
- vllm/model_executor/layers/fused_moe/cutlass_moe.py
- vllm/model_executor/layers/fused_moe/deep_gemm_moe.py
- vllm/model_executor/layers/fused_moe/deepep_ll_prepare_finalize.py
- vllm/model_executor/layers/fused_moe/fused_moe.py
- vllm/model_executor/layers/fused_moe/layer.py
- vllm/model_executor/layers/fused_moe/pplx_prepare_finalize.py
artifact_dir: evidence/pull-bundles/vllm/gh-19717
head_ref_oid: de1d0963140daa45d3102389ebbe8db277eecf09
---
# [Kernels][Bugfix] Use torch op for all kernels in FusedMoE forward.  Add additional testing for cudagraphs.

- Repository: `vllm-project/vllm`
- PR: [19717](https://github.com/vllm-project/vllm/pull/19717)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `tests/kernels/moe/test_cutlass_moe.py`
- `tests/kernels/moe/test_moe.py`
- `tests/kernels/moe/test_nvfp4_moe.py`
- `tests/kernels/moe/test_pplx_cutlass_moe.py`
- `tests/kernels/moe/test_pplx_moe.py`
- `tests/kernels/quantization/test_block_fp8.py`
- `tests/kernels/utils.py`
- `vllm/envs.py`
- `vllm/model_executor/layers/fused_moe/cutlass_moe.py`
- `vllm/model_executor/layers/fused_moe/deep_gemm_moe.py`
- `vllm/model_executor/layers/fused_moe/deepep_ll_prepare_finalize.py`
- `vllm/model_executor/layers/fused_moe/fused_moe.py`
- `vllm/model_executor/layers/fused_moe/layer.py`
- `vllm/model_executor/layers/fused_moe/pplx_prepare_finalize.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-19717`
