[Re-sending from a subscribed address, apologies for any duplicates.]
Dominik 'Rathann' Mierzejewski <dominik(a)greysector.net> writes:
Why not 4.0.0? It was released in September 2018 and it's
supposedly ABI
compatible with 3.x:
https://www.mail-archive.com/announce@lists.open-mpi.org/msg00119.html
I guess you haven't tried it :-/. It may be ABI compatible, but it's
not API compatible (at least by default); that's apart from the usual
sort of breakage you expect from a major version. I've wasted too much
time on it, and given up locally for now.
I wish there was an MPI one could be happy with, providing the
flexibility of OMPI without the maintenance issues.