---
id: pr-vllm-18564
repo: vllm-project/vllm
pr: 18564
title: Sm100 blockwise fp8 swap ab
author: IwakuraRein
date: '2025-06-04'
url: https://github.com/vllm-project/vllm/pull/18564
source_category: upstream-code
architectures:
- sm100
tags:
- fp8
- quantization
techniques: []
hardware_features:
- fp8
kernel_types:
- quantization
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 5f2cd251d212eed3052c5406875eb26811335d3e
inclusion_reason: kernel file changes
changed_paths:
- csrc/quantization/cutlass_w8a8/c3x/scaled_mm_blockwise_sm100_fp8.cu
- csrc/quantization/cutlass_w8a8/c3x/scaled_mm_blockwise_sm100_fp8_dispatch.cuh
- vllm/model_executor/layers/quantization/utils/fp8_utils.py
head_ref_oid: b3aeb0c57da3ae4b03815cb944b21e2823ab0067
artifact_dir: evidence/pull-bundles/vllm/gh-18564
---
# Sm100 blockwise fp8 swap ab

- Repository: `vllm-project/vllm`
- PR: [18564](https://github.com/vllm-project/vllm/pull/18564)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/quantization/cutlass_w8a8/c3x/scaled_mm_blockwise_sm100_fp8.cu`
- `csrc/quantization/cutlass_w8a8/c3x/scaled_mm_blockwise_sm100_fp8_dispatch.cuh`
- `vllm/model_executor/layers/quantization/utils/fp8_utils.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-18564`
