[slurm-users] temporary SLURM directories

Diego Zuccato diego.zuccato at unibo.it
Thu May 26 10:02:51 UTC 2022

Il 26/05/2022 11:48, Diego Zuccato ha scritto:

> Still can't
> export TMPDIR=...
> from TaskProlog script. Surely missing something important. Maybe 
> TaskProlog is called as a subshell? In that case it can't alter caller's 
> env... But IIUC someone made it work, and that confuses me...

Seems I finally managed to understand TaskProlog script! It's more 
involved than I thought. :(

The script is run (on the first allocated node, IIUC) in a subshell (so 
a direct export can't work), and *its output* is processed in the job 
shell. Please correct me if I'm wrong.
That's why the FAQ https://slurm.schedmd.com/faq.html uses lines like
echo "print ..."

Changing my TaskProlog.sh from
export TMPDIR=...
echo "export TMPDIR=..."
fixed it. Now I'm quite happier :)

Diego Zuccato
DIFA - Dip. di Fisica e Astronomia
Servizi Informatici
Alma Mater Studiorum - Università di Bologna
V.le Berti-Pichat 6/2 - 40127 Bologna - Italy
tel.: +39 051 20 95786

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