Can cuda::event and cuda::stream be used with CUDA 12.9?

[j-horner]

If so, what is the best way to do this?

From the documentation these do not appear to be experimental features.

I understand I would need the latest CCCL, which I believe should support CUDA 12.x. I have followed the example set out here to get the latest version.
I also linked my target againt CCCL::CCCL.

Unfortunately it cannot find the cuda/event header.

These are the versions of the various components I am using:

1> [CMake] -- Looking for a CUDA compiler - C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v12.9/bin/nvcc.exe
1> [CMake] -- CUDA support detected
1> [CMake] -- The CUDA compiler identification is NVIDIA 12.9.86 with host compiler MSVC 19.44.35222.0
1> [CMake] -- Detecting CUDA compiler ABI info
1> [CMake] -- Detecting CUDA compiler ABI info - done
1> [CMake] -- Check for working CUDA compiler: C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v12.9/bin/nvcc.exe - skipped
1> [CMake] -- Detecting CUDA compile features
1> [CMake] -- Detecting CUDA compile features - done
1> [CMake] -- CMAKE_CUDA_COMPILER_ID: NVIDIA
1> [CMake] -- CMAKE_CUDA_ARCHITECTURES: native
1> [CMake] -- CUDA_ARCHITECTURES: 
1> [CMake] -- Found CUDAToolkit: C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v12.9/include (found version "12.9.86")
1> [CMake] -- CPM: adding package CCCL@ (main)
1> [CMake] -- Finding CCCL components: Thrust;CUB;libcudacxx
1> [CMake] -- Found CUB: D:/dev/cuda-nbody/build/dev-win64-debug/_deps/cccl-src/lib/cmake/cub/cub-config.cmake (found suitable version "3.3.0.0", minimum required is "3.3.0.0")
1> [CMake] -- libcudacxx: - Added CXX compile option for MSVC: /Zc:__cplusplus
1> [CMake] -- libcudacxx: - Added CXX compile option for MSVC: /Zc:preprocessor
1> [CMake] -- libcudacxx: - Added CUDA host compile option for MSVC: /Zc:__cplusplus
1> [CMake] -- libcudacxx: - Added CUDA host compile option for MSVC: /Zc:preprocessor
1> [CMake] -- Found libcudacxx: D:/dev/cuda-nbody/build/dev-win64-debug/_deps/cccl-src/lib/cmake/libcudacxx/libcudacxx-config.cmake (found suitable exact version "3.3.0.0")
1> [CMake] -- Found Thrust: D:/dev/cuda-nbody/build/dev-win64-debug/_deps/cccl-src/lib/cmake/thrust/thrust-config.cmake (found suitable exact version "3.3.0.0")
1> [CMake] -- Found CCCL: D:/dev/cuda-nbody/build/dev-win64-debug/_deps/cccl-src/lib/cmake/cccl/cccl-config.cmake (found version "3.3.0.0")
1> [CMake] -- Found libcudacxx: D:/dev/cuda-nbody/build/dev-win64-debug/_deps/cccl-src/lib/cmake/libcudacxx/libcudacxx-config.cmake (found version "3.3.0.0")
1> [CMake] -- Found CUB: D:/dev/cuda-nbody/build/dev-win64-debug/_deps/cccl-src/lib/cmake/cub/cub-config.cmake (found version "3.3.0.0")
1> [CMake] -- Found Thrust: D:/dev/cuda-nbody/build/dev-win64-debug/_deps/cccl-src/lib/cmake/thrust/thrust-config.cmake (found version "3.3.0.0")

[gevtushenko]

Hello @j-horner!

Thank you for reporting this, it's a documentation bug on our end. We haven't exposed the cuda/event header yet. While we are fixing this, consider including #include <cuda/stream> instead. It should transitively include required headers.