[slurm-users] MPI jobs via mirun vs. srun through PMIx.

[Juergen Salk]

Dear all,

according to https://slurm.schedmd.com/mpi_guide.html I have built
Slurm 19.05 with PMIx support enabled and it seems to work for both,
OpenMPI and Intel MPI. (I've also set MpiDefault=pmix in slurm.conf.)

But I still don't get the point. Why should I favour `srun ./my_mpi_program´ 
over `mpirun ./my_mpi_program´? For me, both seem to do exactly the same 
thing. No? Did I miss something?

Best regards
Jürgen

-- 
Jürgen Salk
Scientific Software & Compute Services (SSCS)
Kommunikations- und Informationszentrum (kiz)
Universität Ulm
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