binNMUs for switch in MPI implementations (mpi-defaults)

[Manuel Prinz]

Hi Riku!

Am Donnerstag, den 28.01.2010, 23:10 +0200 schrieb Riku Voipio:
> Manuel Prinz wrote:
> > One big step in this effort is to change the mpi-defaults package to no
> > longer use LAM/MPI. We (as in: debian-science) agreed to use MPICH2 on
> > the architectures were Open MPI does not build currently.
> Is there some work ongoing to make Open MPI more portable
> or add the atomic asm instructions for more archs?

Yes, there is. I'm working on that and upstream is very supporting. I
also got lots of help by porters already. There exist patches to
fallback on libatomic-ops on arches where atomic ops are not available.
They are still experimental, though.

Best regards
Maneul