---
id: pr-vllm-38325
repo: vllm-project/vllm
pr: 38325
title: '[Kernel] Add swapAB support for SM120 CUTLASS blockwise FP8 GEMM '
author: Nekofish-L
date: '2026-04-03'
url: https://github.com/vllm-project/vllm/pull/38325
source_category: upstream-code
architectures:
- sm100
tags:
- fp8
- gemm
- quantization
techniques: []
hardware_features:
- fp8
kernel_types:
- gemm
- quantization
languages:
- cuda-cpp
captured_at: '2026-04-17'
status: merged
merge_sha: 580090db6bcbb95ca9413ccf2d4d6726e6e69799
inclusion_reason: kernel file changes
changed_paths:
- csrc/libtorch_stable/quantization/w8a8/cutlass/c3x/scaled_mm_blockwise_sm120_fp8_dispatch.cuh
head_ref_oid: cb0477e6404fb346acce1ed24d33d7d567bb0a1e
artifact_dir: evidence/pull-bundles/vllm/gh-38325
---
# [Kernel] Add swapAB support for SM120 CUTLASS blockwise FP8 GEMM 

- Repository: `vllm-project/vllm`
- PR: [38325](https://github.com/vllm-project/vllm/pull/38325)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/libtorch_stable/quantization/w8a8/cutlass/c3x/scaled_mm_blockwise_sm120_fp8_dispatch.cuh`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-38325`
