---
id: pr-sglang-3267
repo: sgl-project/sglang
pr: 3267
title: support blockwise fp8 matmul kernel
author: yizhang2077
date: '2025-02-12'
url: https://github.com/sgl-project/sglang/pull/3267
source_category: upstream-code
architectures:
- sm100
tags:
- fp8
- gemm
- tma
techniques: []
hardware_features:
- fp8
- tma
kernel_types:
- gemm
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 640363ad2097062936a10858758575c13b2d773e
inclusion_reason: kernel file changes
changed_paths:
- sgl-kernel/benchmark/bench_fp8_blockwise_gemm.py
- sgl-kernel/setup.py
- sgl-kernel/src/sgl-kernel/__init__.py
- sgl-kernel/src/sgl-kernel/csrc/cutlass_extensions/gemm/collective/collective_builder.hpp
- sgl-kernel/src/sgl-kernel/csrc/cutlass_extensions/gemm/collective/sm90_mma_tma_gmma_ss_warpspecialized_fp8_blockwise_scaling.hpp
- sgl-kernel/src/sgl-kernel/csrc/cutlass_extensions/gemm/dispatch_policy.hpp
- sgl-kernel/src/sgl-kernel/csrc/fp8_blockwise_gemm_kernel.cu
- sgl-kernel/src/sgl-kernel/include/sgl_kernels_ops.h
- sgl-kernel/src/sgl-kernel/ops/__init__.py
- sgl-kernel/src/sgl-kernel/torch_extension.cc
- sgl-kernel/tests/test_fp8_blockwise_gemm.py
head_ref_oid: 8e242538b17cf8ce741759bc0df98ba9aefd54eb
artifact_dir: evidence/pull-bundles/sglang/gh-3267
---
# support blockwise fp8 matmul kernel

- Repository: `sgl-project/sglang`
- PR: [3267](https://github.com/sgl-project/sglang/pull/3267)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `sgl-kernel/benchmark/bench_fp8_blockwise_gemm.py`
- `sgl-kernel/setup.py`
- `sgl-kernel/src/sgl-kernel/__init__.py`
- `sgl-kernel/src/sgl-kernel/csrc/cutlass_extensions/gemm/collective/collective_builder.hpp`
- `sgl-kernel/src/sgl-kernel/csrc/cutlass_extensions/gemm/collective/sm90_mma_tma_gmma_ss_warpspecialized_fp8_blockwise_scaling.hpp`
- `sgl-kernel/src/sgl-kernel/csrc/cutlass_extensions/gemm/dispatch_policy.hpp`
- `sgl-kernel/src/sgl-kernel/csrc/fp8_blockwise_gemm_kernel.cu`
- `sgl-kernel/src/sgl-kernel/include/sgl_kernels_ops.h`
- `sgl-kernel/src/sgl-kernel/ops/__init__.py`
- `sgl-kernel/src/sgl-kernel/torch_extension.cc`
- `sgl-kernel/tests/test_fp8_blockwise_gemm.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-3267`
