Hello, I’ve written about our experience packaging Open MPI for GNU Guix in a way that works out-of-the-box on different high-speed interconnects:
https://hpc.guix.info/blog/2019/12/optimized-and-portable-open-mpi-packaging/ I’m new to the list and in fact quite new to Open MPI, so I’d love to read the feedback and suggestions you may have! Thanks, Ludo’.