---
id: pr-vllm-21497
repo: vllm-project/vllm
pr: 21497
title: '[MoE] More balanced expert sharding'
author: WoosukKwon
date: '2025-07-24'
url: https://github.com/vllm-project/vllm/pull/21497
source_category: upstream-code
architectures:
- sm100
tags:
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features: []
kernel_types:
- moe
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: fe56180c7f9088361db86c1ef40dbc54fa931e1f
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/fused_moe/layer.py
head_ref_oid: f203b43c1fd0e3f9d40bc8f93df302acf33e58dc
artifact_dir: evidence/pull-bundles/vllm/gh-21497
---
# [MoE] More balanced expert sharding

- Repository: `vllm-project/vllm`
- PR: [21497](https://github.com/vllm-project/vllm/pull/21497)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/fused_moe/layer.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-21497`
