---
id: pr-sglang-4515
repo: sgl-project/sglang
pr: 4515
title: Create col-major and tma-aligned x_scale for deep_gemm.gemm_fp8_fp8_bf16_nt
author: strgrb
date: '2025-03-19'
url: https://github.com/sgl-project/sglang/pull/4515
source_category: upstream-code
architectures:
- sm100
tags:
- fp8
- gemm
- quantization
- tma
techniques: []
hardware_features:
- fp8
- tma
kernel_types:
- gemm
- quantization
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: f9c53cbb42444e68e9b32d8b9c98bbac5d8091d2
inclusion_reason: kernel file changes
changed_paths:
- python/sglang/srt/layers/quantization/fp8_kernel.py
- python/sglang/srt/layers/quantization/fp8_utils.py
- sgl-kernel/3rdparty/deepgemm
head_ref_oid: 74703457b82a613c5e946c7f019bb8012ef22b76
artifact_dir: evidence/pull-bundles/sglang/gh-4515
---
# Create col-major and tma-aligned x_scale for deep_gemm.gemm_fp8_fp8_bf16_nt

- Repository: `sgl-project/sglang`
- PR: [4515](https://github.com/sgl-project/sglang/pull/4515)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `python/sglang/srt/layers/quantization/fp8_kernel.py`
- `python/sglang/srt/layers/quantization/fp8_utils.py`
- `sgl-kernel/3rdparty/deepgemm`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-4515`
