[JOSS review] Chunking of jobs

[mschubert]

This is a part of the JOSS review outlined in openjournals/joss-reviews#1493.

As far as I can tell, individual function calls are always submitted as array jobs.

What if you have millions of calls?
Does that mean sluRm will submit an array with millions of entries?

In other words, can sluRm chunk together multiple function calls in one jobs?

I assume it can not. This is fine, but should be documented.

[mschubert]

Looking at e.g. Slurm_lapply, it seems I was wrong and chunking is supported 👍

Please document!

[gvegayon]

Yes! Of course, if that were not the case, then ppl should go to https://github.com/mschubert/clustermq instead :). Documented.