---
id: pr-vllm-38989
repo: vllm-project/vllm
pr: 38989
title: '[Bug] Fix routing bias dtype for trtllm per-block fp8 moe'
author: wzhao18
date: '2026-04-09'
url: https://github.com/vllm-project/vllm/pull/38989
source_category: upstream-code
architectures:
- sm100
tags:
- fp8
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features:
- fp8
kernel_types:
- moe
languages:
- python
captured_at: '2026-04-17'
status: merged
merge_sha: 92fbec391b0ae9dff61ddd360ba486f8de5bc53d
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/fused_moe/experts/trtllm_fp8_moe.py
head_ref_oid: e310301e9a68a5ebe8e4ecd51d673efd5ea4853e
artifact_dir: evidence/pull-bundles/vllm/gh-38989
---
# [Bug] Fix routing bias dtype for trtllm per-block fp8 moe

- Repository: `vllm-project/vllm`
- PR: [38989](https://github.com/vllm-project/vllm/pull/38989)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/fused_moe/experts/trtllm_fp8_moe.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-38989`
