---
id: pr-cccl-cub-5223
repo: NVIDIA/cccl
pr: 5223
title: Re-enable UBLKCP transform kernel on sm120
author: bernhardmgruber
date: '2025-07-14'
url: https://github.com/NVIDIA/cccl/pull/5223
source_category: upstream-code
architectures:
- sm100
tags:
- cooperative-groups
techniques: []
hardware_features: []
kernel_types: []
languages:
- cuda-cpp
captured_at: '2026-05-16'
status: merged
merge_sha: c3ef843bfa611cc52bb247b797c6500f2f0e2861
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- cub/cub/device/dispatch/tuning/tuning_transform.cuh
artifact_dir: evidence/pull-bundles/cccl-cub/gh-5223
head_ref_oid: 7dd8d69ba426ff1e28c2887ddbdb1c5bb3255e41
---
# Re-enable UBLKCP transform kernel on sm120

- Repository: `NVIDIA/cccl`
- PR: [5223](https://github.com/NVIDIA/cccl/pull/5223)
- 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

- `cub/cub/device/dispatch/tuning/tuning_transform.cuh`

## Evidence Bundle

`evidence/pull-bundles/cccl-cub/gh-5223`
