---
id: pr-flashinfer-1473
repo: flashinfer-ai/flashinfer
pr: 1473
title: 'perf: add 1x4x1 cluster shape for fp8 bmm M<16 cases'
author: ttyio
date: '2025-08-12'
url: https://github.com/flashinfer-ai/flashinfer/pull/1473
source_category: upstream-code
architectures:
- sm100
tags:
- fp8
- gemm
techniques: []
hardware_features:
- fp8
kernel_types:
- gemm
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 7e98d8b94ae626aaebf2f5e25d115bc30c2229f2
inclusion_reason: kernel file changes
changed_paths:
- csrc/fp8_gemm_cutlass.jinja
- include/flashinfer/gemm/fp8_gemm_cutlass_template.h
head_ref_oid: 902a629fdbec91dce5f77644979fbdab6ac453a3
artifact_dir: evidence/pull-bundles/flashinfer/gh-1473
---
# perf: add 1x4x1 cluster shape for fp8 bmm M<16 cases

- Repository: `flashinfer-ai/flashinfer`
- PR: [1473](https://github.com/flashinfer-ai/flashinfer/pull/1473)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/fp8_gemm_cutlass.jinja`
- `include/flashinfer/gemm/fp8_gemm_cutlass_template.h`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1473`
