---
id: pr-thunderkittens-98
repo: HazyResearch/ThunderKittens
pr: 98
title: Performance Parity for H100_mma_ABt and H100_mma Kernels
author: SohamGovande
date: '2025-06-16'
url: https://github.com/HazyResearch/ThunderKittens/pull/98
source_category: upstream-code
architectures:
- sm90
tags:
- benchmark kernel
- matmul
techniques: []
hardware_features: []
kernel_types:
- gemm
languages:
- cuda-cpp
captured_at: '2026-05-16'
status: merged
merge_sha: 419d813117fcb260c604ad9c8423adcfac8e706d
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- kernels/matmul/H100_mma_ABt/matmul.cu
artifact_dir: evidence/pull-bundles/thunderkittens/gh-98
head_ref_oid: 138f687e95ff82f03b51cb9ace782f6c87142f63
---
# Performance Parity for H100_mma_ABt and H100_mma Kernels

- Repository: `HazyResearch/ThunderKittens`
- PR: [98](https://github.com/HazyResearch/ThunderKittens/pull/98)
- 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

- `kernels/matmul/H100_mma_ABt/matmul.cu`

## Evidence Bundle

`evidence/pull-bundles/thunderkittens/gh-98`
