---
id: pr-flash-attention-cutlass-21
repo: dcutoolkit/deeplearing/flash-attention-cutlass
pr: 21
title: e5m2精度通过
author: fanwl
date: '2026-01-15'
url: http://42.228.13.241:10068/dcutoolkit/deeplearing/flash-attention-cutlass/-/merge_requests/21
source_category: upstream-code
architectures:
- dcu
- gfx928
- gfx936
- gfx938
tags:
- attention
- cutlass
- dcu
- flash-attention
- hip
- quantization
- rocm
- softmax
techniques:
- build-system
- quantization
hardware_features:
- fp8
kernel_types:
- attention
- quantization
- softmax
languages:
- cpp
- cuda-cpp
- hip
- python
captured_at: '2026-05-19T07:28:38.621971+00:00'
status: open
merge_sha: 3013803c802600cb6be40a3c8436a7dedbda3393
inclusion_reason: Use as LightOp/DCU upstream MR evidence; web/API MR state was unavailable, so validate portability against local LightOp before reuse.
changed_paths:
- csrc/flash_attn/flash_api.cpp
- csrc/flash_attn/src/flash.h
- csrc/flash_attn/src/flash_fwd_kernel.h
- csrc/flash_attn/src/flash_fwd_split_hdim128_fp8_e5m2_causal_sm80.cu
- csrc/flash_attn/src/flash_fwd_split_hdim128_fp8_e5m2_sm80.cu
- csrc/flash_attn/src/flash_fwd_split_hdim64_fp8_e5m2_causal_sm80.cu
- csrc/flash_attn/src/flash_fwd_split_hdim64_fp8_e5m2_sm80.cu
- csrc/flash_attn/src/kernel_traits.h
- csrc/flash_attn/src/paged_attention.cu
- csrc/flash_attn/src/softmax.h
- csrc/flash_attn/src/static_switch.h
- csrc/flash_attn/src/utils.h
- flash_attn/__init__.py
- flash_attn/flash_attn_interface.py
- setup.py
artifact_dir: evidence/pull-bundles/flash-attention-cutlass/mr-21
---
# e5m2精度通过

- Repository: `dcutoolkit/deeplearing/flash-attention-cutlass`
- MR: [21](http://42.228.13.241:10068/dcutoolkit/deeplearing/flash-attention-cutlass/-/merge_requests/21)
- Decision: `include`
- Reason: Use as LightOp/DCU upstream MR evidence; web/API MR state was unavailable, so validate portability against local LightOp before reuse.

## Changed Paths

- `csrc/flash_attn/flash_api.cpp`
- `csrc/flash_attn/src/flash.h`
- `csrc/flash_attn/src/flash_fwd_kernel.h`
- `csrc/flash_attn/src/flash_fwd_split_hdim128_fp8_e5m2_causal_sm80.cu`
- `csrc/flash_attn/src/flash_fwd_split_hdim128_fp8_e5m2_sm80.cu`
- `csrc/flash_attn/src/flash_fwd_split_hdim64_fp8_e5m2_causal_sm80.cu`
- `csrc/flash_attn/src/flash_fwd_split_hdim64_fp8_e5m2_sm80.cu`
- `csrc/flash_attn/src/kernel_traits.h`
- `csrc/flash_attn/src/paged_attention.cu`
- `csrc/flash_attn/src/softmax.h`
- `csrc/flash_attn/src/static_switch.h`
- `csrc/flash_attn/src/utils.h`
- `flash_attn/__init__.py`
- `flash_attn/flash_attn_interface.py`
- `setup.py`

## Artifact Bundle

`evidence/pull-bundles/flash-attention-cutlass/mr-21`
