---
id: pr-vllm-22933
repo: vllm-project/vllm
pr: 22933
title: '[Bugfix] use flash attn on sm90'
author: zyongye
date: '2025-08-14'
url: https://github.com/vllm-project/vllm/pull/22933
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 39cd09dc86cadd80f3588e8d67ee9288012bcb9e
inclusion_reason: include
changed_paths:
- vllm/platforms/cuda.py
artifact_dir: evidence/pull-bundles/vllm/gh-22933
head_ref_oid: 58dfe6e072558d6f7bfdbfabd48f75764eb272a8
---
# [Bugfix] use flash attn on sm90

- Repository: `vllm-project/vllm`
- PR: [22933](https://github.com/vllm-project/vllm/pull/22933)
- Decision: `include`
- Reason: include

## Changed Paths

- `vllm/platforms/cuda.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-22933`
