ndet: Freitag, 22. September 2023 14:25
An: slurm-users@lists.schedmd.com
Betreff: Re: [slurm-users] Submitting hybrid OpenMPI and OpenMP Jobs
Hello,
for this setup it typically helps to disable MPI process binding with
"mpirun --bind-to none ..." (or similar) so that OpenMP can use al
You might also try swapping to use srun instead of mpiexec as that way
slurm can give more direction as to what cores have been allocated to
what. I've found it in the past that mpiexec will ignore what Slurm
tells it.
-Paul Edmon-
On 9/22/23 8:24 AM, Lambers, Martin wrote:
Hello,
for this
Hello,
for this setup it typically helps to disable MPI process binding with
"mpirun --bind-to none ..." (or similar) so that OpenMP can use all cores.
Best,
Martin
On 22/09/2023 13:57, Selch, Brigitte (FIDD) wrote:
Hello,
one of our applications need hybrid OpenMPI and OpenMP Job-Submit.
Hello,
one of our applications need hybrid OpenMPI and OpenMP Job-Submit.
Only one task is allowed on one node, but this task should use all cores of the
node.
So, for example I made:
#!/bin/bash
#SBATCH --nodes=5
#SBATCH --ntasks=5
#SBATCH --cpus-per-task=44
#SBATCH --export=ALL
export OMP_NU
