Ginés Guerrero <gguerr...@nlhpc.cl> writes: > Hi, > > If I submit this script: > > #!/bin/bash > #SBATCH --get-user-env > #SBATCH -p slims > #SBATCH -N 2 > #SBATCH -n 40 > #SBATCH --ntasks-per-node=20 > #SBATCH -o log > #SBATCH -e log > > /bin/env > > srun hostname > > I get the warning: “can't honor --ntasks-per-node set to 20 which > doesn't match the requested tasks 40 with the number of requested > nodes 1. Ignoring –ntasks-per-node”.
Are you using IntelMPI? I've seen this type of warning in some situations with IntelMPI. In all our cases, "srun hostname" or "mpirun hostname" shows that it *does* honor --ntasks-per-node. (So we generally just ask our users to check with "srun hostname", and ignore the warning if it works as expected.) -- Regards, Bjørn-Helge Mevik, dr. scient, Department for Research Computing, University of Oslo
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