---
id: pr-sglang-15347
repo: sgl-project/sglang
pr: 15347
title: Use dsv3 optimized routing `fused_topk_deepseek` instead of `moe_fused_gate`
author: leejnau
date: '2026-01-19'
url: https://github.com/sgl-project/sglang/pull/15347
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 84c8390514d524c251193f405d348d583e809dbb
inclusion_reason: defer
changed_paths:
- python/sglang/srt/layers/moe/topk.py
- test/registered/kernels/test_fused_topk_deepseek.py
- test/srt/test_deepseek_v3_mtp.py
artifact_dir: evidence/pull-bundles/sglang/gh-15347
head_ref_oid: ba1836904e4fc26a85325fcd2a11199ab6ca3384
---
# Use dsv3 optimized routing `fused_topk_deepseek` instead of `moe_fused_gate`

- Repository: `sgl-project/sglang`
- PR: [15347](https://github.com/sgl-project/sglang/pull/15347)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `python/sglang/srt/layers/moe/topk.py`
- `test/registered/kernels/test_fused_topk_deepseek.py`
- `test/srt/test_deepseek_v3_mtp.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-15347`
