Subject: bug#73649: OpenMPI + mpi4py broken: rank=0

From: Antero Mejr <[email-masked]>
Date: Wed, 11 Dec 2024 18:35:27 -0500

Lars Bilke <[email-masked]> writes:

> The issue seems that openmpi is version 5.x but mpi4py is compiled against
> version 4.x.

That does fix it, thanks. Maybe packages built against MPI 4.x should
be upgraded to the default MPI version, because the docs say:

"The Open MPI v5.0.x series shared libraries are ABI compatible with
Open MPI v4.0.x and v4.1.x, with a few exceptions for Fortran."

https://docs.open-mpi.org/en/v5.0.x/version-numbering.html