Re: [slurm-users] problems with slurm and openmpi

2019-03-14 Thread Gilles Gouaillardet
Riccardo, I am a bit confused by your explanation. Open MPI does embed PMIx, but only for itself. An other way to put it is you have to install pmix first (package or download from pmix.org) and then build SLURM on top of it. Then you can build Open MPI with the same (external) PMIx or t

Re: [slurm-users] problems with slurm and openmpi

2019-03-12 Thread Gilles Gouaillardet
Rick, The issue is SLURM can only provide pmi2 support, and it seems Open MPI only supports pmix One option is to rebuild SLURM with PMIx as explained by Daniel, and then srun --mpi=pmix ... If you do not want (or cannot) rebuilt SLURM, you can use the older pmi or pmi2. In that case,

Re: [slurm-users] Heterogeneous job one MPI_COMM_WORLD

2018-10-09 Thread Gilles Gouaillardet
Christopher, This looks like a SLURM issue and Open MPI is (currently) out of the picture. What if you srun --pack-group=0,1 hostname Do you get a similar error ? Cheers, Gilles On 10/10/2018 3:07 AM, Christopher Benjamin Coffey wrote: Hi, I have a user trying to setup a heterogene