---
id: pr-flash-attention-2216
repo: Dao-AILab/flash-attention
pr: 2216
title: '[CUTE]Bump to Cutedsl'
author: drisspg
date: '2026-02-08'
url: https://github.com/Dao-AILab/flash-attention/pull/2216
source_category: upstream-code
architectures:
- sm100
tags:
- cute
- cutlass
techniques: []
hardware_features: []
kernel_types:
- attention
languages:
- cute-dsl
captured_at: '2026-05-16'
status: merged
merge_sha: abaa87875d573e67d7886f2f6c1efa0d0c840c3b
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- flash_attn/cute/cute_dsl_utils.py
- flash_attn/cute/flash_bwd.py
- flash_attn/cute/flash_bwd_postprocess.py
- flash_attn/cute/flash_bwd_preprocess.py
- flash_attn/cute/flash_bwd_sm100.py
- flash_attn/cute/flash_bwd_sm90.py
- flash_attn/cute/flash_fwd.py
- flash_attn/cute/flash_fwd_combine.py
- flash_attn/cute/flash_fwd_sm100.py
- flash_attn/cute/pipeline.py
- flash_attn/cute/pyproject.toml
artifact_dir: evidence/pull-bundles/flash-attention/gh-2216
head_ref_oid: 0492857095b0e49e9c8d11c0525a0821c56c798c
---
# [CUTE]Bump to Cutedsl

- Repository: `Dao-AILab/flash-attention`
- PR: [2216](https://github.com/Dao-AILab/flash-attention/pull/2216)
- 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/cute_dsl_utils.py`
- `flash_attn/cute/flash_bwd.py`
- `flash_attn/cute/flash_bwd_postprocess.py`
- `flash_attn/cute/flash_bwd_preprocess.py`
- `flash_attn/cute/flash_bwd_sm100.py`
- `flash_attn/cute/flash_bwd_sm90.py`
- `flash_attn/cute/flash_fwd.py`
- `flash_attn/cute/flash_fwd_combine.py`
- `flash_attn/cute/flash_fwd_sm100.py`
- `flash_attn/cute/pipeline.py`
- `flash_attn/cute/pyproject.toml`

## Evidence Bundle

`evidence/pull-bundles/flash-attention/gh-2216`
