---
id: pr-quack-96
repo: Dao-AILab/quack
pr: 96
title: Add SM120 (consumer Blackwell) support
author: emre570
date: '2026-04-14'
url: https://github.com/Dao-AILab/quack/pull/96
source_category: upstream-code
architectures:
- sm100
- sm90
tags:
- blackwell
- cross-entropy
- cute
- cute-dsl
- gemm
- hopper
- quack
- softmax
techniques:
- async-copy
hardware_features:
- blackwell
- hopper
- tma
kernel_types:
- gemm
- softmax
languages:
- cute-dsl
captured_at: '2026-05-16'
status: merged
merge_sha: e9f14f14c3d81d18d56c52ea269fbd8fc66975a7
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- quack/cross_entropy.py
- quack/rmsnorm.py
- quack/softmax.py
- tests/test_cross_entropy.py
- tests/test_rmsnorm.py
- tests/test_softmax.py
artifact_dir: evidence/pull-bundles/quack/gh-96
head_ref_oid: 47b471488286427288b6bd1f736067cc5f089ac9
---
# Add SM120 (consumer Blackwell) support

- Repository: `Dao-AILab/quack`
- PR: [96](https://github.com/Dao-AILab/quack/pull/96)
- 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/cross_entropy.py`
- `quack/rmsnorm.py`
- `quack/softmax.py`
- `tests/test_cross_entropy.py`
- `tests/test_rmsnorm.py`
- `tests/test_softmax.py`

## Evidence Bundle

`evidence/pull-bundles/quack/gh-96`
