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NCI-data-analysis module enables executing Rmpi scripts across multiple worker nodes at Gadi. The current verision version of Rmpi in NCI-data-analysis/222022.06 module is v0.6-9.2. 

Gadi

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#!/bin/bash
 
#PBS -l ncpus=4
#PBS -l mem=16GB
#PBS -l jobfs=20GB
#PBS -q normal
#PBS -P a00
#PBS -l walltime=00:30:00
#PBS -l storage=gdata/dk92+gdata/a00+scratch/a00
#PBS -l wd

module use /g/data/dk92/apps/Modules/modulefiles
module load NCI-data-analysis/222022.06

mpirun -np 1 Rscript Rmpi_test.R  >& output.log

Note: you should always specify "-np 1" in the above script and Rmpi will use it as the master process and then you can which will spawn "MPI_COMM_SIZE-1" child processes.

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You can also run the above example script directly from a command line within a ARE JupyterLab session as below:

mpirun -np 1 Rscript Rmpi_test.R >& output.log

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