---
id: pr-vllm-37940
repo: vllm-project/vllm
pr: 37940
title: '[NIXL][BUG] Fix Triton heterogeneous TP'
author: yzong-rh
date: '2026-04-01'
url: https://github.com/vllm-project/vllm/pull/37940
source_category: upstream-code
architectures:
- sm100
tags:
- attention
techniques: []
hardware_features: []
kernel_types:
- attention
languages:
- triton
captured_at: '2026-04-17'
status: merged
merge_sha: dc0428ebb879af3224e5d9ef5ab93cb04d8d1b27
inclusion_reason: kernel file changes
changed_paths:
- tests/v1/kv_connector/nixl_integration/config_sweep_accuracy_test.sh
- tests/v1/kv_connector/unit/test_nixl_connector.py
- vllm/distributed/kv_transfer/kv_connector/v1/nixl_connector.py
- vllm/v1/attention/backends/triton_attn.py
- vllm/v1/attention/ops/triton_reshape_and_cache_flash.py
artifact_dir: evidence/pull-bundles/vllm/gh-37940
head_ref_oid: de46ba9697cbe92d9cf3fd2d28952327b8d0e164
---
# [NIXL][BUG] Fix Triton heterogeneous TP

- Repository: `vllm-project/vllm`
- PR: [37940](https://github.com/vllm-project/vllm/pull/37940)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `tests/v1/kv_connector/nixl_integration/config_sweep_accuracy_test.sh`
- `tests/v1/kv_connector/unit/test_nixl_connector.py`
- `vllm/distributed/kv_transfer/kv_connector/v1/nixl_connector.py`
- `vllm/v1/attention/backends/triton_attn.py`
- `vllm/v1/attention/ops/triton_reshape_and_cache_flash.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-37940`
