---
id: pr-flashinfer-2836
repo: flashinfer-ai/flashinfer
pr: 2836
title: '[Fmha] Sparse MLA decode kernel selection heuristics'
author: PerkzZheng
date: '2026-03-20'
url: https://github.com/flashinfer-ai/flashinfer/pull/2836
source_category: upstream-code
architectures:
- sm100
tags:
- decode
- flash-attention
- mla
techniques: []
hardware_features: []
kernel_types:
- decode
- flash-attention
- mla
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: c72f62aa9582c71c5342ae31f39125d2992b1c4a
inclusion_reason: kernel file changes
changed_paths:
- flashinfer/artifacts.py
- include/flashinfer/trtllm/fmha/fmhaKernels.cuh
- include/flashinfer/trtllm/fmha/kernelParams.h
head_ref_oid: e2b581945b3f32f0d6f16d80f2c31c04802566d3
artifact_dir: evidence/pull-bundles/flashinfer/gh-2836
---
# [Fmha] Sparse MLA decode kernel selection heuristics

- Repository: `flashinfer-ai/flashinfer`
- PR: [2836](https://github.com/flashinfer-ai/flashinfer/pull/2836)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `flashinfer/artifacts.py`
- `include/flashinfer/trtllm/fmha/fmhaKernels.cuh`
- `include/flashinfer/trtllm/fmha/kernelParams.h`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2836`
