---
id: pr-sglang-15471
repo: sgl-project/sglang
pr: 15471
title: '[sgl-kernel][6/7]Support Expert Specialization Grouped GEMM'
author: HydraQYH
date: '2026-03-19'
url: https://github.com/sgl-project/sglang/pull/15471
source_category: upstream-code
architectures:
- sm100
tags:
- PDL
- benchmark_test
- csrc kernel
- gemm_quant
- moe_routing
techniques:
- fine-grained-quantization
hardware_features:
- fp8
- pdl
kernel_types:
- gemm
- moe
languages:
- cuda-cpp
captured_at: '2026-05-16'
status: merged
merge_sha: cb8105fe282fc373b5baed63d5df38682418a373
inclusion_reason: Inspect scale layout, accumulator type, tile/schedule choice, epilogue fusion, and partial-tile guards before deriving a candidate.
changed_paths:
- sgl-kernel/benchmark/bench_es_fp8_blockwise_grouped_gemm.py
- sgl-kernel/csrc/expert_specialization/es_fp8_blockwise.cu
- sgl-kernel/csrc/expert_specialization/es_fp8_blockwise_functor.cuh
- sgl-kernel/csrc/expert_specialization/es_fp8_blockwise_launcher.cuh
- sgl-kernel/csrc/expert_specialization/es_fp8_blockwise_traits.cuh
artifact_dir: evidence/pull-bundles/sglang/gh-15471
head_ref_oid: 76153dbef815d39dd5d79ac02203f0af740b7b85
---
# [sgl-kernel][6/7]Support Expert Specialization Grouped GEMM

- Repository: `sgl-project/sglang`
- PR: [15471](https://github.com/sgl-project/sglang/pull/15471)
- Decision: `Inspect scale layout, accumulator type, tile/schedule choice, epilogue fusion, and partial-tile guards before deriving a candidate.`
- Reason: Inspect scale layout, accumulator type, tile/schedule choice, epilogue fusion, and partial-tile guards before deriving a candidate.

## Changed Paths

- `sgl-kernel/benchmark/bench_es_fp8_blockwise_grouped_gemm.py`
- `sgl-kernel/csrc/expert_specialization/es_fp8_blockwise.cu`
- `sgl-kernel/csrc/expert_specialization/es_fp8_blockwise_functor.cuh`
- `sgl-kernel/csrc/expert_specialization/es_fp8_blockwise_launcher.cuh`
- `sgl-kernel/csrc/expert_specialization/es_fp8_blockwise_traits.cuh`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-15471`
