---
id: pr-sglang-17499
repo: sgl-project/sglang
pr: 17499
title: '[MUSA][7/N] Enhance CUDA / PyNccl wrapper to support MTLink connectivity detection'
author: gingerXue
date: '2026-01-28'
url: https://github.com/sgl-project/sglang/pull/17499
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: e9d727cb9218f30a7352f2d17614d74ec0577062
inclusion_reason: include
changed_paths:
- python/pyproject_other.toml
- python/sglang/srt/distributed/device_communicators/cuda_wrapper.py
- python/sglang/srt/distributed/device_communicators/custom_all_reduce.py
- python/sglang/srt/distributed/device_communicators/custom_all_reduce_ops.py
- python/sglang/srt/distributed/device_communicators/custom_all_reduce_utils.py
- python/sglang/srt/distributed/device_communicators/pynccl_wrapper.py
artifact_dir: evidence/pull-bundles/sglang/gh-17499
head_ref_oid: 8f9096e34bd6edd3931c8409c7b1b852463de73d
---
# [MUSA][7/N] Enhance CUDA / PyNccl wrapper to support MTLink connectivity detection

- Repository: `sgl-project/sglang`
- PR: [17499](https://github.com/sgl-project/sglang/pull/17499)
- Decision: `include`
- Reason: include

## Changed Paths

- `python/pyproject_other.toml`
- `python/sglang/srt/distributed/device_communicators/cuda_wrapper.py`
- `python/sglang/srt/distributed/device_communicators/custom_all_reduce.py`
- `python/sglang/srt/distributed/device_communicators/custom_all_reduce_ops.py`
- `python/sglang/srt/distributed/device_communicators/custom_all_reduce_utils.py`
- `python/sglang/srt/distributed/device_communicators/pynccl_wrapper.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-17499`
