There seems to be an example of how to start a bunch of jobs in series or parallel using Perl here: http://www.zedat.fu-berlin.de/HPC/EN/SorobanQueueingSystem#MultistepSerialJob

Also there appears to be a Perl API for Slurm: https://github.com/SchedMD/slurm/tree/master/contribs/perlapi - easier to read documentation appears to be here: http://manpages.ubuntu.com/manpages/trusty/man3/Slurm.3pm.html

(Disclaimer: I have no idea about SLURM, these are just some Google results that appear relevant.)