---
id: pr-flashinfer-1972
repo: flashinfer-ai/flashinfer
pr: 1972
title: Added heuristic for trtllm_allreduce_fusion
author: nvjullin
date: '2025-10-24'
url: https://github.com/flashinfer-ai/flashinfer/pull/1972
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 4512a6c7d510cd1620222c9aa6069265ccc8318b
inclusion_reason: include
changed_paths:
- flashinfer/comm/trtllm_ar.py
artifact_dir: evidence/pull-bundles/flashinfer/gh-1972
head_ref_oid: 2af730fd125c6f90ee5cfcf46146a65a9b9266af
---
# Added heuristic for trtllm_allreduce_fusion

- Repository: `flashinfer-ai/flashinfer`
- PR: [1972](https://github.com/flashinfer-ai/flashinfer/pull/1972)
- Decision: `include`
- Reason: include

## Changed Paths

- `flashinfer/comm/trtllm_ar.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1972`
