---
id: pr-sglang-15631
repo: sgl-project/sglang
pr: 15631
title: '[jit-kernel] Add CuTe DSL GDN Decode Kernel'
author: liz-badada
date: '2026-01-18'
url: https://github.com/sgl-project/sglang/pull/15631
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- decode
techniques: []
hardware_features: []
kernel_types:
- attention
- decode
languages:
- cute-dsl
- python
captured_at: '2026-04-27'
status: merged
merge_sha: e00b43442d2fa45975833063e09e37deab8b905a
inclusion_reason: kernel file changes
changed_paths:
- python/sglang/jit_kernel/cutedsl_gdn.py
- python/sglang/jit_kernel/tests/test_cutedsl_gdn.py
- python/sglang/srt/environ.py
- python/sglang/srt/layers/attention/hybrid_linear_attn_backend.py
head_ref_oid: 3cb01530e3ace929f8e7df52f3514280c589fa2a
artifact_dir: evidence/pull-bundles/sglang/gh-15631
---
# [jit-kernel] Add CuTe DSL GDN Decode Kernel

- Repository: `sgl-project/sglang`
- PR: [15631](https://github.com/sgl-project/sglang/pull/15631)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `python/sglang/jit_kernel/cutedsl_gdn.py`
- `python/sglang/jit_kernel/tests/test_cutedsl_gdn.py`
- `python/sglang/srt/environ.py`
- `python/sglang/srt/layers/attention/hybrid_linear_attn_backend.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-15631`
