jimkring / cuda-cmake-github-actions

CUDA + Cmake example using Github Actions

This repo is a very simple CUDA application, used to GitHub Actions as a CI service for CUDA compilation.

This will potentially be expanded to investigate self-hosted runner(s) for running tests locally.

Sample application

To be representative of a real world example this should include:

• cmake for cross platform build tooling
• nvcc to compile .cu code.
• some form of test script?

Compilation

mkdir -p build
cd build
cmake .. 
make

Execution

cd build
./main

Version Compatibility

CUDA is only supported with appropriate host compilers.

This support matrix can be found in the CUDA documentation, however, there are some obvious caveats related to the current state of github actions (at the time of writing)

• Windows-2019
  • Visual Studio 16.5.5 which maps to _MSC_VER 1925
    • CUDA >= 10.1
      • CUDA 10.0 requires _MSC_VER between 1700 and 1920
• Ubuntu 18.04
  • GNU C++ 7.5.0, 8.4.0 & 9.3.0 are available
  • CUDA 10.0+ are available in the apt repository.
    • You can use the older 1604 apt repo to enable CUDA 8.0+
• Ubuntu 20.04
  • GNU C++ 9.4.0, 10.3.0 are available#
    • GNU C++ 10.3.0 leads to errors when using <chrono> with NVCC in --std=C++17 mode. This has been addressed in GCC, but the patch hasn't made it to Ubuntu packaged GCC.
  • CUDA 11.0+ are available in the apt repository.
    • You can use the older 1804 apt repo to enable CUDA 10.0+, but this is an unsupported configuration which may lead to errors.