---
id: pr-tilelang-1855
repo: tile-ai/tilelang
pr: 1855
title: '[Enhancement] GEMM V2 on SM90/SM100 CuTeDSL backend'
author: lucifer1004
date: '2026-02-22'
url: https://github.com/tile-ai/tilelang/pull/1855
source_category: upstream-code
architectures:
- sm100
- sm90
tags:
- attention
- attention kernel
- blackwell
- cute
- cutlass
- sm100
- sm90
- tile-dsl
techniques: []
hardware_features:
- blackwell
- hopper
kernel_types:
- attention
- gemm
languages:
- cuda-cpp
- cute-dsl
captured_at: '2026-05-16'
status: merged
merge_sha: 391cf5b6b92167586d49a657cafafbdd55ad96b7
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- .github/workflows/ci.yml
- docs/spelling_wordlist.txt
- examples/attention_sink/example_mha_sink_bwd_bhsd.py
- examples/conftest.py
- maint/scripts/run_local_ci_test.sh
- src/op/copy.cc
- src/target/codegen_cutedsl.cc
- src/target/codegen_cutedsl.h
- src/target/utils.cc
- src/target/utils.h
- src/transform/lower_ldg_stg.cc
- src/transform/pipeline_planning.cc
- testing/python/jit/test_tilelang_jit_cutedsl.py
- tilelang/contrib/cutedsl/__init__.py
- tilelang/contrib/cutedsl/atomic.py
- tilelang/contrib/cutedsl/cpasync.py
- tilelang/contrib/cutedsl/gemm_tcgen05.py
- tilelang/contrib/cutedsl/gemm_v1.py
- tilelang/contrib/cutedsl/gemm_v2.py
- tilelang/contrib/cutedsl/grid_sync.py
- tilelang/contrib/cutedsl/ieee_math.py
- tilelang/contrib/cutedsl/ldsm.py
- tilelang/contrib/cutedsl/math.py
- tilelang/contrib/cutedsl/mbar.py
- tilelang/contrib/cutedsl/ptx_mma.py
- tilelang/contrib/cutedsl/quantize.py
- tilelang/contrib/cutedsl/reduce.py
- tilelang/contrib/cutedsl/threadblock_swizzle.py
- tilelang/contrib/cutedsl/utils.py
- tilelang/contrib/cutedsl/warp.py
- tilelang/jit/adapter/cutedsl/adapter.py
- tilelang/jit/adapter/cutedsl/wrapper.py
- tilelang/jit/adapter/nvrtc/adapter.py
- tilelang/language/gemm_op.py
- tilelang/tileop/gemm/__init__.py
- tilelang/tileop/gemm/gemm_cutedsl.py
artifact_dir: evidence/pull-bundles/tilelang/gh-1855
head_ref_oid: a8e1f7b476278ad1916e8da97b2ca8d657e9e73d
---
# [Enhancement] GEMM V2 on SM90/SM100 CuTeDSL backend

- Repository: `tile-ai/tilelang`
- PR: [1855](https://github.com/tile-ai/tilelang/pull/1855)
- 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

- `.github/workflows/ci.yml`
- `docs/spelling_wordlist.txt`
- `examples/attention_sink/example_mha_sink_bwd_bhsd.py`
- `examples/conftest.py`
- `maint/scripts/run_local_ci_test.sh`
- `src/op/copy.cc`
- `src/target/codegen_cutedsl.cc`
- `src/target/codegen_cutedsl.h`
- `src/target/utils.cc`
- `src/target/utils.h`
- `src/transform/lower_ldg_stg.cc`
- `src/transform/pipeline_planning.cc`
- `testing/python/jit/test_tilelang_jit_cutedsl.py`
- `tilelang/contrib/cutedsl/__init__.py`
- `tilelang/contrib/cutedsl/atomic.py`
- `tilelang/contrib/cutedsl/cpasync.py`
- `tilelang/contrib/cutedsl/gemm_tcgen05.py`
- `tilelang/contrib/cutedsl/gemm_v1.py`
- `tilelang/contrib/cutedsl/gemm_v2.py`
- `tilelang/contrib/cutedsl/grid_sync.py`
- `tilelang/contrib/cutedsl/ieee_math.py`
- `tilelang/contrib/cutedsl/ldsm.py`
- `tilelang/contrib/cutedsl/math.py`
- `tilelang/contrib/cutedsl/mbar.py`
- `tilelang/contrib/cutedsl/ptx_mma.py`
- `tilelang/contrib/cutedsl/quantize.py`
- `tilelang/contrib/cutedsl/reduce.py`
- `tilelang/contrib/cutedsl/threadblock_swizzle.py`
- `tilelang/contrib/cutedsl/utils.py`
- `tilelang/contrib/cutedsl/warp.py`
- `tilelang/jit/adapter/cutedsl/adapter.py`
- `tilelang/jit/adapter/cutedsl/wrapper.py`
- `tilelang/jit/adapter/nvrtc/adapter.py`
- `tilelang/language/gemm_op.py`
- `tilelang/tileop/gemm/__init__.py`
- `tilelang/tileop/gemm/gemm_cutedsl.py`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-1855`
