---
id: pr-cccl-cub-8010
repo: NVIDIA/cccl
pr: 8010
title: Properly support complex64 in nvbench_helper
author: bernhardmgruber
date: '2026-03-12'
url: https://github.com/NVIDIA/cccl/pull/8010
source_category: upstream-code
architectures:
- sm100
tags:
- reduction
techniques: []
hardware_features: []
kernel_types:
- reduction
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 24494e77be4004803050d87ffb350b74cdb5f933
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- cub/benchmarks/bench/transform/babelstream.cu
- cub/benchmarks/bench/transform/complex_cmp.cu
- nvbench_helper/nvbench_helper/nvbench_helper.cu
- nvbench_helper/nvbench_helper/nvbench_helper.cuh
- nvbench_helper/test/gen_seed.cu
- nvbench_helper/test/gen_uniform_distribution.cu
artifact_dir: evidence/pull-bundles/cccl-cub/gh-8010
head_ref_oid: adede3d304213c0d4d7f3d78a56c67f01574463f
---
# Properly support complex64 in nvbench_helper

- Repository: `NVIDIA/cccl`
- PR: [8010](https://github.com/NVIDIA/cccl/pull/8010)
- 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/benchmarks/bench/transform/babelstream.cu`
- `cub/benchmarks/bench/transform/complex_cmp.cu`
- `nvbench_helper/nvbench_helper/nvbench_helper.cu`
- `nvbench_helper/nvbench_helper/nvbench_helper.cuh`
- `nvbench_helper/test/gen_seed.cu`
- `nvbench_helper/test/gen_uniform_distribution.cu`

## Evidence Bundle

`evidence/pull-bundles/cccl-cub/gh-8010`
