---
id: pr-vllm-29346
repo: vllm-project/vllm
pr: 29346
title: '[Perf] Disable DeepGEMM MoE by default when TP=8 is used'
author: mgoin
date: '2025-11-25'
url: https://github.com/vllm-project/vllm/pull/29346
source_category: upstream-code
architectures:
- sm100
- sm90
tags:
- fp8
- gemm
- moe
- quantization
techniques: []
hardware_features:
- fp8
kernel_types:
- gemm
- moe
- quantization
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 6f1355a1b74e4502e6a4e6ba9a811cc50729ee1f
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/quantization/fp8.py
head_ref_oid: 9ffdadd7936f80b3057a9906521c5cd3751dad70
artifact_dir: evidence/pull-bundles/vllm/gh-29346
---
# [Perf] Disable DeepGEMM MoE by default when TP=8 is used

- Repository: `vllm-project/vllm`
- PR: [29346](https://github.com/vllm-project/vllm/pull/29346)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/quantization/fp8.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-29346`
