[slurm-users] pmix issue

[Yuengling, Philip J.]

Hi everyone,

I’ve been having difficulty getting the --mpi=pmix_v3 option to work for me.  I can get --mpi=pmi2 to work ok, but I really want to understand what I’m doing wrong here.  Everything seems to build ok.

$ srun --mpi=list
srun: MPI types are...
srun: pmix
srun: pmix_v3
srun: cray_shasta
srun: none
srun: pmi2

$ srun --mpi=pmix_v3 -N5 date
srun: error: task 1 launch failed: Invalid MPI plugin name
srun: error: task 2 launch failed: Invalid MPI plugin name
srun: error: task 3 launch failed: Invalid MPI plugin name
srun: error: task 4 launch failed: Invalid MPI plugin name
srun: error: task 0 launch failed: Invalid MPI plugin name

$ srun --mpi=pmi2 -N5 date
Fri Dec  4 13:52:39 EST 2020
Fri Dec  4 13:52:39 EST 2020
Fri Dec  4 13:52:39 EST 2020
Fri Dec  4 13:52:39 EST 2020
Fri Dec  4 13:52:39 EST 2020


openpmix:
CC=/opt/rh/devtoolset-10/root/usr/bin/gcc ./configure --prefix=/share/local/pmix-3.2.1 --with-hwloc=/share/local/hwloc-2.4.0

Slurm 20.11.0:
rpmbuild --define "_with_pmix --with-pmix=/fs/local/pmix-3.2.1" -ta slurm-20.11.0.tar.bz2
From config.log:
./configure --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-linux-gnu --program-prefix= --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc/slurm --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-pmix=/fs/local/pmix-3.2.1 --disable-slurmrestd

Open MP 4.0.5:
./configure  '--prefix=/share/openmpi-4.0.5' '--with-cuda' '--with-pmix=/share/local/pmix-3.2.1' '--with-pmi=/usr' '--with-slurm' '--without-ucx' '--without-verbs'
--

Philip J. Yuengling
Johns Hopkins University
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