Re: [Scitech] Re: openmpi 3.1.3?
On Thursday, 14 February 2019 at 11:11, Dave Love wrote:
[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 :-/.
Indeed, I haven't.
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.
Understood. I guess the way forward is to update to latest 3.1.x now
and start working on 4.0.0 after F30 is branched in COPR. I might be
able to lend a hand or two. ;)
I wish there was an MPI one could be happy with, providing the
flexibility of OMPI without the maintenance issues.
Seconded. For example, there are subtle differences between MPICH and
OpenMPI regarding MPI_OFFSET_KIND int type on 32bit arches and neither
upstream considered changing to be consistent with the other:
https://github.com/open-mpi/ompi/issues/4846
https://github.com/pmodels/mpich/issues/3002
I'm sure there are other pitfalls as well.
Regards,
Dominik
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