I can disable pmix support in mpich.
Pmix is working fine in openmpi, so it’s an mpich/pmix issue of some sort (or
maybe ch4)
Regards
Alastair
On 22/02/2022, 14:57, "debian-science-maintainers on behalf of Drew Parsons"
<debian-science-maintainers-bounces+mckinstry=debian....@alioth-lists.debian.net
on behalf of dpars...@debian.org> wrote:
Package: mpich
Followup-For: Bug #1004556
My guess is that this bug is ongoing in 4.0-2 because of pmix support.
4.0-2 is still configured --with-pmix=/usr/lib/x86_64-linux-gnu/pmix2
and still Depends: libpmix2 (>= 4.1.2)
pmix support was added in 4.0~b1-2 along with ucx.
I gather ucx was deactivated in 4.0-2 but pmix was not. Looks like pmix
also needs to go (unless the problem is ch4, which was also added in
4.0~b1-2). But the error message references PMIX.
Ironically, I find that an executable compiled against mpich 4.0-1
fails with mpiexec.mpich (as raised in this bug) but actually passes
when run with mpiexec.openmpi. Awkward.
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