I am running a perl script that calls multiple programs. This script itself is called by a submitted PBS script. One of the programs called by the parent perl script is parallelized (it is VASP). When I use system("PATH_to_executable > vasp.out"); within the parent script, VASP runs on a single compute node and that is painfully slow. I tried in vain to include the line system("module load impi"); just before initiating the call to VASP. I would be most grateful if any of you has ideas for me.

In reply to How can a perl script call a parallelized program using its system function? by ngumkhan21

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