Dear Slurm Users,
I am facing issues with the following combinations of OpenMPI and SLURM. I
was wondering if you have faced something similar and can help me.
OpenMPI-3.1.6 and slurm 19.05.5
OpenMPI-4.0.3 and slurm 19.05.5
I have the OpenMPI packages configured with "--with-slurm" option and
installed.
* Configure command line:
'--prefix=/home/manumachu/openmpi-4.0.3/OPENMPI_INSTALL' '--with-slurm'
MCA ess: slurm (MCA v2.1.0, API v3.0.0, Component v4.0.3)
MCA plm: slurm (MCA v2.1.0, API v2.0.0, Component v4.0.3)
MCA ras: slurm (MCA v2.1.0, API v2.0.0, Component v4.0.3)
MCA schizo: slurm (MCA v2.1.0, API v1.0.0, Component v4.0.3)*
I am executing the sbatch script shown below:
*#!/bin/bash#SBATCH --account=xxxxx*
*#SBATCH --job-name=ompi4#SBATCH --output=ompi4.out#SBATCH
--error=ompi4.err*
*#SBATCH --ntasks-per-node=1#SBATCH --time=00:30:00export
PATH=/scratch/manumachu/openmpi-4.0.3/OPENMPI_INSTALL/bin:$PATHexport
LD_LIBRARY_PATH=/scratch/manumachu/openmpi-4.0.3/OPENMPI_INSTALL/lib:$LD_LIBRARY_PATHmpirun
-np 4 ./bcast_timing -t 1*
No matter what option I give to mpirun, I get the following error:
*mpirun: Error: unknown option "-np"*
I have used mpiexec also but received the same errors.
To summarize, I am not able to call mpirun from a SLURM script. I can use
srun but I have no idea how to pass MCA parameters I usually give to mpirun
such as, "*--map-by ppr:1:socket -mca pml ob1 -mca btl tcp,self -mca
coll_tuned_use_dynamic_rules 1*".
Thank you for your help.
--
Kind Regards
Dr. Ravi Reddy Manumachu
Research Fellow, School of Computer Science, University College Dublin
Ravi Manumachu on Google Scholar
<https://scholar.google.com/citations?user=QlvhSSUAAAAJ&hl=en>, ResearchGate
<https://www.researchgate.net/profile/Ravi_Manumachu>
