---
id: pr-vllm-22991
repo: vllm-project/vllm
pr: 22991
title: '[Fix] enable swap_ab for pplx problem size computation'
author: shixianc
date: '2025-08-15'
url: https://github.com/vllm-project/vllm/pull/22991
source_category: upstream-code
architectures:
- sm100
tags:
- moe
- quantization
techniques: []
hardware_features: []
kernel_types:
- moe
- quantization
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 7f89ed248fef01098c7ce4bebb197b462eb15bc3
inclusion_reason: kernel file changes
changed_paths:
- csrc/quantization/cutlass_w8a8/moe/moe_data.cu
head_ref_oid: 11fdca8306de4dad47ebe42fad4630bfe9c3e177
artifact_dir: evidence/pull-bundles/vllm/gh-22991
---
# [Fix] enable swap_ab for pplx problem size computation

- Repository: `vllm-project/vllm`
- PR: [22991](https://github.com/vllm-project/vllm/pull/22991)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/quantization/cutlass_w8a8/moe/moe_data.cu`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-22991`
