---
id: pr-vllm-29775
repo: vllm-project/vllm
pr: 29775
title: '[ROCm][MXFP4] Infer w4a4 quant method in rocm aiter fused moe'
author: ZhiweiYan-96
date: '2025-12-05'
url: https://github.com/vllm-project/vllm/pull/29775
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features:
- fp4
kernel_types:
- moe
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 3628bcaaf229f3ce86b64e73ab88dd64211ddf38
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/fused_moe/config.py
- vllm/model_executor/layers/fused_moe/rocm_aiter_fused_moe.py
head_ref_oid: 963634438bd62ce24b4c52f0fbc2e06c96f8f3de
artifact_dir: evidence/pull-bundles/vllm/gh-29775
---
# [ROCm][MXFP4] Infer w4a4 quant method in rocm aiter fused moe

- Repository: `vllm-project/vllm`
- PR: [29775](https://github.com/vllm-project/vllm/pull/29775)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/fused_moe/config.py`
- `vllm/model_executor/layers/fused_moe/rocm_aiter_fused_moe.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-29775`
