---
id: pr-flashinfer-2811
repo: flashinfer-ai/flashinfer
pr: 2811
title: CuteDSL MoE fix redundant output buffer zeroing
author: leejnau
date: '2026-03-19'
url: https://github.com/flashinfer-ai/flashinfer/pull/2811
source_category: upstream-code
architectures:
- sm100
tags:
- gemm
- grouped-gemm
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features: []
kernel_types:
- gemm
- grouped-gemm
- moe
languages:
- cute-dsl
captured_at: '2026-04-27'
status: merged
merge_sha: 27b9dc7c5d7b04f62ad83933da652203a62cccad
inclusion_reason: kernel file changes
changed_paths:
- flashinfer/fused_moe/cute_dsl/blockscaled_contiguous_grouped_gemm_finalize_fusion.py
- flashinfer/fused_moe/cute_dsl/fused_moe.py
head_ref_oid: bb49b24c3712b08422ec8e169f2c3f3d182da729
artifact_dir: evidence/pull-bundles/flashinfer/gh-2811
---
# CuteDSL MoE fix redundant output buffer zeroing

- Repository: `flashinfer-ai/flashinfer`
- PR: [2811](https://github.com/flashinfer-ai/flashinfer/pull/2811)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `flashinfer/fused_moe/cute_dsl/blockscaled_contiguous_grouped_gemm_finalize_fusion.py`
- `flashinfer/fused_moe/cute_dsl/fused_moe.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2811`
