[slurm-users] Warning: can't honor --ntasks-per-node

[Ginés Guerrero]

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”.

This is strange, since I am explicitly requiring 2 nodes, which is
seen in the environment variables:

    cat log | grep -i nodes
    SLURM_NNODES=2
    SLURM_JOB_NUM_NODES=2

We are using Slurm version 21.08.3.

Any help will be greatly appreciated.

Best,

Ginés