---
id: pr-sglang-22127
repo: sgl-project/sglang
pr: 22127
title: '[Diffusion] Add diffusion NVFP4 scaled-mm correctness test'
author: BBuf
date: '2026-04-08'
url: https://github.com/sgl-project/sglang/pull/22127
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- kernel-fusion
- nvfp4
techniques:
- kernel-fusion
hardware_features:
- fp4
- nvfp4
kernel_types: []
languages:
- python
captured_at: '2026-04-17'
status: merged
merge_sha: b5b2dbe05f99cd4bf5f2b64da48fe46111d00f9a
inclusion_reason: kernel file changes
changed_paths:
- .github/workflows/pr-test-jit-kernel.yml
- .github/workflows/pr-test.yml
- python/sglang/jit_kernel/tests/diffusion/test_diffusion_nvfp4_scaled_mm.py
- test/run_suite.py
head_ref_oid: fc6cbc64f5d9243604742f17b6467e8a21e7e8a8
artifact_dir: evidence/pull-bundles/sglang/gh-22127
---
# [Diffusion] Add diffusion NVFP4 scaled-mm correctness test

- Repository: `sgl-project/sglang`
- PR: [22127](https://github.com/sgl-project/sglang/pull/22127)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `.github/workflows/pr-test-jit-kernel.yml`
- `.github/workflows/pr-test.yml`
- `python/sglang/jit_kernel/tests/diffusion/test_diffusion_nvfp4_scaled_mm.py`
- `test/run_suite.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-22127`
