---
id: pr-vllm-31837
repo: vllm-project/vllm
pr: 31837
title: '[Perf] Fuse stride preparation for NVFP4 cutlass_moe'
author: mgoin
date: '2026-01-07'
url: https://github.com/vllm-project/vllm/pull/31837
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- moe
- nvfp4
- quantization
techniques: []
hardware_features:
- fp4
- nvfp4
kernel_types:
- moe
- quantization
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: f347ac6c346f8e84a75ec975618c5aa79c1b9db5
inclusion_reason: kernel file changes
changed_paths:
- csrc/quantization/fp4/nvfp4_blockwise_moe_kernel.cu
head_ref_oid: ff8f285abb91c4adfca5b6d890873f80fa9c3fa2
artifact_dir: evidence/pull-bundles/vllm/gh-31837
---
# [Perf] Fuse stride preparation for NVFP4 cutlass_moe

- Repository: `vllm-project/vllm`
- PR: [31837](https://github.com/vllm-project/vllm/pull/31837)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/quantization/fp4/nvfp4_blockwise_moe_kernel.cu`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-31837`
