---
id: pr-flashinfer-2982
repo: flashinfer-ai/flashinfer
pr: 2982
title: 'feat(comm): add MOE Finalize/Reduction patterns to unified allreduce_fusion API'
author: samuellees
date: '2026-04-13'
url: https://github.com/flashinfer-ai/flashinfer/pull/2982
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: b75740dbaa662899280dd0a587979022868f56de
inclusion_reason: kernel file changes
changed_paths:
- docs/api/comm.rst
- flashinfer/comm/allreduce.py
- flashinfer/comm/trtllm_ar.py
- tests/comm/test_allreduce_fusion_moe_unified_api.py
head_ref_oid: e81bf04517686a75fc7303e07380a663b0dddc07
artifact_dir: evidence/pull-bundles/flashinfer/gh-2982
---
# feat(comm): add MOE Finalize/Reduction patterns to unified allreduce_fusion API

- Repository: `flashinfer-ai/flashinfer`
- PR: [2982](https://github.com/flashinfer-ai/flashinfer/pull/2982)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `docs/api/comm.rst`
- `flashinfer/comm/allreduce.py`
- `flashinfer/comm/trtllm_ar.py`
- `tests/comm/test_allreduce_fusion_moe_unified_api.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2982`
