---
id: pr-sglang-15531
repo: sgl-project/sglang
pr: 15531
title: Support piecewise cuda graph for dsv3 fp4
author: ispobock
date: '2025-12-21'
url: https://github.com/sgl-project/sglang/pull/15531
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 8fe3e3746832f4a449f22da00a780d77ddb32d64
inclusion_reason: defer
changed_paths:
- python/sglang/srt/layers/attention/trtllm_mla_backend.py
- python/sglang/srt/layers/moe/fused_moe_triton/layer.py
- python/sglang/srt/layers/quantization/compressed_tensors/schemes/compressed_tensors_w4a4_nvfp4.py
- python/sglang/srt/layers/quantization/modelopt_quant.py
- python/sglang/srt/models/deepseek_v2.py
- test/srt/run_suite.py
- test/srt/test_deepseek_v3_fp4_4gpu.py
artifact_dir: evidence/pull-bundles/sglang/gh-15531
head_ref_oid: f8c891dace7ac3efd9a8da52533e9478a58eea64
---
# Support piecewise cuda graph for dsv3 fp4

- Repository: `sgl-project/sglang`
- PR: [15531](https://github.com/sgl-project/sglang/pull/15531)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `python/sglang/srt/layers/attention/trtllm_mla_backend.py`
- `python/sglang/srt/layers/moe/fused_moe_triton/layer.py`
- `python/sglang/srt/layers/quantization/compressed_tensors/schemes/compressed_tensors_w4a4_nvfp4.py`
- `python/sglang/srt/layers/quantization/modelopt_quant.py`
- `python/sglang/srt/models/deepseek_v2.py`
- `test/srt/run_suite.py`
- `test/srt/test_deepseek_v3_fp4_4gpu.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-15531`
