---
id: pr-cccl-cub-5078
repo: NVIDIA/cccl
pr: 5078
title: Small fixes and improvements to DeviceTransform
author: bernhardmgruber
date: '2025-07-02'
url: https://github.com/NVIDIA/cccl/pull/5078
source_category: upstream-code
architectures:
- sm90
tags:
- hopper
techniques: []
hardware_features:
- hopper
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 2a757629240ba22e4c09cafd5a6d8be365839d17
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- cub/cub/device/dispatch/dispatch_transform.cuh
- cub/cub/device/dispatch/kernels/transform.cuh
- cub/cub/device/dispatch/tuning/tuning_transform.cuh
artifact_dir: evidence/pull-bundles/cccl-cub/gh-5078
head_ref_oid: 85f8eb96a43972822659a05a2770d8b564dfd10d
---
# Small fixes and improvements to DeviceTransform

- Repository: `NVIDIA/cccl`
- PR: [5078](https://github.com/NVIDIA/cccl/pull/5078)
- 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/dispatch_transform.cuh`
- `cub/cub/device/dispatch/kernels/transform.cuh`
- `cub/cub/device/dispatch/tuning/tuning_transform.cuh`

## Evidence Bundle

`evidence/pull-bundles/cccl-cub/gh-5078`
