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NVIDIA / cccl Public

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Replace `cuda::atomic_ref` with plain CUDA atomics#10001

Draft

PointKernel wants to merge 1 commit into

NVIDIA:mainNVIDIA/cccl:mainfrom

PointKernel:fix/cuco-plain-cuda-atomics-9983PointKernel/cccl:fix/cuco-plain-cuda-atomics-9983Copy head branch name to clipboard

Conversation Commits1 (1)Checks Files changed

Draft

Replace `cuda::atomic_ref` with plain CUDA atomics#10001
PointKernel wants to merge 1 commit into
NVIDIA:mainfrom
PointKernel:fix/cuco-plain-cuda-atomics-9983

Replace cuda::atomic_ref with plain CUDA atomics

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Set PR and Linked Issues to In Progress on: pull_request_target 3

query_and_mutate_project_fields

pull_request on: push 12

Build workflow from matrix

CCCL C CUDASTF nvcc GCC / A / [CTK13.3 GCC13] Build(amd64): sm{75}

CCCL C CUDASTF nvcc GCC / A / [CTK13.3 GCC13] Test(amd64, RTX2080): sm{75}

cudax nvcc Clang / Bs / [CTK13.3 Clang21 C++20] Build(amd64)

cudax nvcc Clang / Bs / [CTK13.3 Clang21 C++20] Test(amd64, RTX2080)

cudax nvcc GCC / C0 / [CTK13.3 GCC15 C++20] Build(amd64)

cudax nvcc GCC / C0 / [CTK13.3 GCC15 C++20] Test(amd64, RTX2080)

cudax nvcc GCC / C0 / [CTK13.3 GCC15 C++20] Test(amd64, H100)

cudax nvcc GCC / DE / [CTK13.3 GCC15 C++20] Build(amd64): sm{90}

cudax nvcc GCC / DE / [CTK13.3 GCC15 C++20] Test(amd64, H100 2-GPU): sm{90}

matrix.name

CCCL Packaging nvcc Clang / [CTK13.3 Clang21] Test(amd64, RTX2080): sm{75}

CCCL Packaging nvcc GCC / [CTK13.3 GCC15] Install(amd64)

CCCL Packaging nvcc GCC / [CTK13.3 GCC15] Test(amd64, RTX2080): sm{75}

CCCL Packaging nvcc GCC / [CTK13.3 GCC15] Test(amd64, RTX2080): sm{75} -min-cmake

clang-tidy ClangCUDA / [CTK12.9 Clang21 C++17] Build(amd64): sm{75}

cudax nvcc Clang / [CTK12.0 Clang14 C++17] Build(amd64)

cudax nvcc Clang / [CTK12.0 Clang14 C++20] Build(amd64)

cudax nvcc Clang / [CTK12.9 Clang14 C++17] Build(amd64)

cudax nvcc Clang / [CTK12.9 Clang14 C++20] Build(amd64)

cudax nvcc Clang / [CTK12.9 Clang19 C++17] Build(amd64)

cudax nvcc Clang / [CTK12.9 Clang19 C++20] Build(amd64)

cudax nvcc Clang / [CTK13.0 Clang15 C++17] Build(amd64)

cudax nvcc Clang / [CTK13.0 Clang15 C++20] Build(amd64)

cudax nvcc Clang / [CTK13.0 Clang20 C++17] Build(amd64)

cudax nvcc Clang / [CTK13.0 Clang20 C++20] Build(amd64)

cudax nvcc Clang / [CTK13.3 Clang15 C++17] Build(amd64)

cudax nvcc Clang / [CTK13.3 Clang15 C++20] Build(amd64)

cudax nvcc Clang / [CTK13.3 Clang16 C++20] Build(amd64)

cudax nvcc Clang / [CTK13.3 Clang17 C++20] Build(amd64)

cudax nvcc Clang / [CTK13.3 Clang18 C++20] Build(amd64)

cudax nvcc Clang / [CTK13.3 Clang19 C++20] Build(amd64)

cudax nvcc Clang / [CTK13.3 Clang20 C++20] Build(amd64)

cudax nvcc Clang / [CTK13.3 Clang21 C++17] Build(amd64)

cudax nvcc Clang / [CTK13.3 Clang21 C++20] Build(arm64)

cudax nvcc GCC / [CTK12.0 GCC9 C++17] Build(amd64)

cudax nvcc GCC / [CTK12.0 GCC12 C++17] Build(amd64)

cudax nvcc GCC / [CTK12.0 GCC12 C++20] Build(amd64)

cudax nvcc GCC / [CTK12.9 GCC9 C++17] Build(amd64)

cudax nvcc GCC / [CTK12.9 GCC14 C++17] Build(amd64)

cudax nvcc GCC / [CTK12.9 GCC14 C++20] Build(amd64)

cudax nvcc GCC / [CTK13.0 GCC11 C++17] Build(amd64)

cudax nvcc GCC / [CTK13.0 GCC11 C++20] Build(amd64)

cudax nvcc GCC / [CTK13.0 GCC15 C++17] Build(amd64)

cudax nvcc GCC / [CTK13.0 GCC15 C++20] Build(amd64)

cudax nvcc GCC / [CTK13.3 GCC11 C++17] Build(amd64)

cudax nvcc GCC / [CTK13.3 GCC11 C++20] Build(amd64)

cudax nvcc GCC / [CTK13.3 GCC12 C++20] Build(amd64)

cudax nvcc GCC / [CTK13.3 GCC15 C++17] Build(amd64)

cudax nvcc GCC / [CTK13.3 GCC15 C++20] Build(arm64)

cudax nvcc NVHPC / [CTK13.1 NVHPC26.3 C++17] Build(amd64)

cudax nvcc NVHPC / [CTK13.1 NVHPC26.3 C++17] Build(arm64)

cudax nvcc NVHPC / [CTK13.1 NVHPC26.3 C++20] Build(amd64)

cudax nvcc NVHPC / [CTK13.1 NVHPC26.3 C++20] Build(arm64)

cudax nvcc MSVC / [CTK12.0 MSVC14.39 C++20] Build(amd64)

cudax nvcc MSVC / [CTK12.9 MSVC14.44 C++20] Build(amd64)

cudax nvcc MSVC / [CTK13.0 MSVC14.44 C++20] Build(amd64)

cudax nvcc MSVC / [CTK13.3 MSVC14.44 C++20] Build(amd64)

cudax nvcc MSVC / [CTK13.3 MSVC14.50 C++20] Build(amd64)

Verify Dev Containers / Verify devcontainer files are up-to-date

Verify Dev Containers / matrix.devcontainer.name

Build documentation

Build RAPIDS (optional) / Check GH Event

Build RAPIDS (optional) / rmm ucxx kvikio cudf cudf_kafka

Build RAPIDS (optional) / rmm ucxx raft cuvs nvforest cuml cuopt

Build RAPIDS (optional) / rmm ucxx raft cuvs cugraph wholegraph

Build RAPIDS (optional) / Notify Slack of RAPIDS failure

Build MatX (optional) / Build MatX

Build MatX (optional) / Notify Slack of MatX failure

Build PyTorch (optional) / Build PyTorch

Build PyTorch (optional) / Notify Slack of PyTorch failure

Bench Compare (${{ matrix.gpu }})

Test CPU-only import

Verify and summarize workflow results

Post benchmark results

CI

Annotations

2 errors and 1 warning

Sync Linked Issues

Process completed with exit code 1.

Set PR Fields

Process completed with exit code 1.

Complete job

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: tibdex/github-app-token@v1.8.0. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

query_and_mutate_project_fields

succeeded Jul 17, 2026 in 7s

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