---
id: pr-flash-attention-2297
repo: Dao-AILab/flash-attention
pr: 2297
title: '[CuTeDSL][Sm80] basic fix for new api'
author: zhuochenKIDD
date: '2026-03-11'
url: https://github.com/Dao-AILab/flash-attention/pull/2297
source_category: upstream-code
architectures:
- sm90
tags:
- sm80
- sm90
techniques: []
hardware_features:
- hopper
kernel_types:
- attention
languages:
- cute-dsl
captured_at: '2026-05-16'
status: merged
merge_sha: 4d2be7051037b3fbdf9a7b73afcbb49de06ef67a
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- flash_attn/cute/flash_bwd.py
- flash_attn/cute/flash_fwd.py
- flash_attn/cute/interface.py
artifact_dir: evidence/pull-bundles/flash-attention/gh-2297
head_ref_oid: 6131bddbb4bada42752f1fafa6125e94efdcdd0d
---
# [CuTeDSL][Sm80] basic fix for new api

- Repository: `Dao-AILab/flash-attention`
- PR: [2297](https://github.com/Dao-AILab/flash-attention/pull/2297)
- Decision: `Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.`
- Reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.

## Changed Paths

- `flash_attn/cute/flash_bwd.py`
- `flash_attn/cute/flash_fwd.py`
- `flash_attn/cute/interface.py`

## Evidence Bundle

`evidence/pull-bundles/flash-attention/gh-2297`
