---
id: pr-quack-100
repo: Dao-AILab/quack
pr: 100
title: Autotune between tma gather and cp.async in SM100
author: GarlGuo
date: '2026-04-08'
url: https://github.com/Dao-AILab/quack/pull/100
source_category: upstream-code
architectures:
- sm100
tags:
- sm100
techniques:
- async-copy
- autotuning
hardware_features:
- blackwell
- tma
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 53d9af8fa567d2988dd088bb61ee29c2447fe6dc
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- quack/gemm_act.py
- quack/gemm_config.py
- quack/gemm_dact.py
- quack/gemm_interface.py
artifact_dir: evidence/pull-bundles/quack/gh-100
head_ref_oid: 2cd7bdf0d9750acfcbbc2cf75f4debe8ce24bedf
---
# Autotune between tma gather and cp.async in SM100

- Repository: `Dao-AILab/quack`
- PR: [100](https://github.com/Dao-AILab/quack/pull/100)
- 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

- `quack/gemm_act.py`
- `quack/gemm_config.py`
- `quack/gemm_dact.py`
- `quack/gemm_interface.py`

## Evidence Bundle

`evidence/pull-bundles/quack/gh-100`
