---
id: pr-flashinfer-1108
repo: flashinfer-ai/flashinfer
pr: 1108
title: 'feat: add trtllm moe_allreduce_fusion'
author: yyihuang
date: '2025-06-17'
url: https://github.com/flashinfer-ai/flashinfer/pull/1108
source_category: upstream-code
architectures:
- sm100
tags:
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features: []
kernel_types:
- moe
languages:
- cuda-cpp
captured_at: '2026-04-17'
status: merged
merge_sha: 0a754ce4fcae45fb0ce231de0bb03bc796bb44b3
inclusion_reason: kernel file changes
changed_paths:
- csrc/comm_pybind.cu
- csrc/trtllm_moe_allreduce_fusion.cu
- flashinfer/comm.py
- include/flashinfer/comm/trtllm_moe_allreduce_fusion.cuh
- include/flashinfer/vec_dtypes.cuh
- tests/test_trtllm_moe_allreduce_fusion.py
head_ref_oid: 1f83898ffd5d4b243853992293340708d7347d8c
artifact_dir: evidence/pull-bundles/flashinfer/gh-1108
---
# feat: add trtllm moe_allreduce_fusion

- Repository: `flashinfer-ai/flashinfer`
- PR: [1108](https://github.com/flashinfer-ai/flashinfer/pull/1108)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/comm_pybind.cu`
- `csrc/trtllm_moe_allreduce_fusion.cu`
- `flashinfer/comm.py`
- `include/flashinfer/comm/trtllm_moe_allreduce_fusion.cuh`
- `include/flashinfer/vec_dtypes.cuh`
- `tests/test_trtllm_moe_allreduce_fusion.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1108`
