[OMPI users] Fw: openmpi/pmix hangs when increasing tasks

Hello, I am having trouble getting mpi tasks to work when using slurm. There doesn't seem to be trouble when I specify the number of nodes and only a few tasks per node (e.g. 3 nodes and 2 or 3 tasks each), or if I specify the number of tasks altogether (e.g. -n 40). The trouble comes when I di

[OMPI users] OMPI v2.1.5 with Slurm

Hello, I have been having a heck of a time getting an old version of OMPI (v2.1) with slurm (v19). I need it to work with an application that I don't have control of recompiling with newer OMPI versions. I think it is an OMPI or PMIX compiling issue because the newer versions (OMPI v3 and v4,