---
id: pr-tilelang-1969
repo: tile-ai/tilelang
pr: 1969
title: '[BugFix] Fix bugs in `gemm_streamk` example on SM90'
author: Rachmanino
date: '2026-03-24'
url: https://github.com/tile-ai/tilelang/pull/1969
source_category: upstream-code
architectures:
- sm90
tags:
- sm90
techniques: []
hardware_features:
- hopper
kernel_types:
- gemm
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 3ba86c1c2e08aa7cdcdb1c206be4a3061a19570d
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- examples/gemm_streamk/example_tilelang_gemm_streamk.py
artifact_dir: evidence/pull-bundles/tilelang/gh-1969
head_ref_oid: cfe6edf05f38c8283f2787e983f16dce055da491
---
# [BugFix] Fix bugs in `gemm_streamk` example on SM90

- Repository: `tile-ai/tilelang`
- PR: [1969](https://github.com/tile-ai/tilelang/pull/1969)
- Decision: `Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.`
- Reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.

## Changed Paths

- `examples/gemm_streamk/example_tilelang_gemm_streamk.py`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-1969`
