GitHub Actions Windows MSYS2 MS-MPI

July 9, 2025

On Windows the most commonly used MPI libraries are MS-MPI and Intel MPI. MSYS2 is a popular choice to use GCC, Clang and many other developer tools from the Windows Command Prompt, PowerShell or the MSYS Terminal itself.

Continuous Integration for Windows MPI applications on GitHub Actions is accomplished as in fortran-mpi-examples

Set inter-step environment variables using GitHub Actions environment files.