Here is an example job submission script to run simulations on multiple CPUs. 

#!/bin/bash
#PBS -l walltime=01:00:00
#PBS -l ncpus=48
#PBS -l mem=190GB
#PBS -l jobfs=100GB
#PBS -l wd
#PBS -q normal
#PBS -l storage=gdata/dk92

module use /g/data/dk92/apps/Modules/modulefiles/
module load NCI-data-analysis/2022.06

N=4096
sdir=/g/data/dk92/notebooks/examples-julia/Oceananigans 
mpirun -np $PBS_NCPUS julia --project $sdir/shareenv_distributed_shallow_water_model_mpi.jl $N $N 1 $PBS_NCPUS
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