[torqueusers] tmpdir vs workdir

[Arnau Bria]

Hi,

I've been reading doc and I can't understand the difference between
both vars...

could someone be more specific than manual? Maybe a  explanation for a
dummy?


http://www.clusterresources.com/torquedocs21/users/2.2files.shtml

PBS_O_WORKDIR 	the absolute path of the current working

tmpdir
directory of the qsub command The tmpdir mom config option sets the
directory basename for a per-job temporary directory.  Before the job
is launched, MOM will append the jobid to the tmpdir base-name and
create the directory.  After the job completes and exits, MOM will
recursively delete that temporary directory. The env variable TMPDIR
will be set for all pro/epilog scripts, the job script, and TM tasks. 


Is tmpdir mandatory?

Cheers,
Arnau