Hi, On Mon, Apr 16, 2018 at 04:42:31PM +0800, Drew Parsons wrote: > On Mon, 2018-04-16 at 08:27 +0100, Alastair McKinstry wrote: > > > Now that mpich builds on all arches, it could be a good opportunity > > > to > > > review and discuss whether we want to keep openmpi as the default > > > default, or whether we want to switch to mpich. > > > > > I'd favour switching over to mpich for all archs for this release. > > This > > is because MPICH has the failed image support, OpenMPI hasn't. > > Thanks Alastair. OpenMPI 3 has just arrived in unstable. Is it still > the case that openmpi 3 does not provide failed image support?
One thing I could do is upload a new mpi-testsuite package, which tries to run (the MPICH testsuite mostly, IIRC) for both MPICH and OpenMPI; that might give some input on how good/bad they are on the various arches. Michael