---
id: pr-cccl-cub-8061
repo: NVIDIA/cccl
pr: 8061
title: Implement parallel `cuda::std::transform_inclusive_scan`
author: miscco
date: '2026-04-01'
url: https://github.com/NVIDIA/cccl/pull/8061
source_category: upstream-code
architectures:
- sm100
tags:
- blackwell
- scan
techniques: []
hardware_features:
- blackwell
kernel_types:
- scan
languages:
- cuda-cpp
captured_at: '2026-05-16'
status: merged
merge_sha: 737b4eaf0abb8b484bbc13908683fadfd2710d51
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- libcudacxx/benchmarks/bench/transform_exclusive_scan/basic.cu
- libcudacxx/benchmarks/bench/transform_inclusive_scan/basic.cu
- libcudacxx/include/cuda/std/__pstl/exclusive_scan.h
- libcudacxx/include/cuda/std/__pstl/inclusive_scan.h
- libcudacxx/include/cuda/std/__pstl/transform_exclusive_scan.h
- libcudacxx/include/cuda/std/__pstl/transform_inclusive_scan.h
- libcudacxx/include/cuda/std/execution
- libcudacxx/test/libcudacxx/std/numerics/numeric.ops/transform.exclusive.scan/pstl_transform_exclusive_scan.cu
- libcudacxx/test/libcudacxx/std/numerics/numeric.ops/transform.inclusive.scan/pstl_transform_inclusive_scan_op.cu
- libcudacxx/test/libcudacxx/std/numerics/numeric.ops/transform.inclusive.scan/pstl_transform_inclusive_scan_op_init.cu
- thrust/benchmarks/bench/transform_exclusive_scan/basic.cu
- thrust/benchmarks/bench/transform_inclusive_scan/basic.cu
artifact_dir: evidence/pull-bundles/cccl-cub/gh-8061
head_ref_oid: 0db1e4109d17aacfbd3b4fc6b9442932efbe4b26
---
# Implement parallel `cuda::std::transform_inclusive_scan`

- Repository: `NVIDIA/cccl`
- PR: [8061](https://github.com/NVIDIA/cccl/pull/8061)
- 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

- `libcudacxx/benchmarks/bench/transform_exclusive_scan/basic.cu`
- `libcudacxx/benchmarks/bench/transform_inclusive_scan/basic.cu`
- `libcudacxx/include/cuda/std/__pstl/exclusive_scan.h`
- `libcudacxx/include/cuda/std/__pstl/inclusive_scan.h`
- `libcudacxx/include/cuda/std/__pstl/transform_exclusive_scan.h`
- `libcudacxx/include/cuda/std/__pstl/transform_inclusive_scan.h`
- `libcudacxx/include/cuda/std/execution`
- `libcudacxx/test/libcudacxx/std/numerics/numeric.ops/transform.exclusive.scan/pstl_transform_exclusive_scan.cu`
- `libcudacxx/test/libcudacxx/std/numerics/numeric.ops/transform.inclusive.scan/pstl_transform_inclusive_scan_op.cu`
- `libcudacxx/test/libcudacxx/std/numerics/numeric.ops/transform.inclusive.scan/pstl_transform_inclusive_scan_op_init.cu`
- `thrust/benchmarks/bench/transform_exclusive_scan/basic.cu`
- `thrust/benchmarks/bench/transform_inclusive_scan/basic.cu`

## Evidence Bundle

`evidence/pull-bundles/cccl-cub/gh-8061`
