FAQ

I cannot connect to Chemfarm

Access to Chemfarm is possible only from the Weizmann network. Therefore, you have to be either connected to LAN, or to secure wireless, or via VPN. You have to contact your department secretary to arrange your network access.

What is my disk space quota?

To find the amount of space and files you use in all the areas use the following commands:


mmlsquota -u $USER

to see your personal usage. Or:


mmlsquota -g `id -gn`

to display usage of your group.

How many CPU cores can I use?

Some users have personal limits on private queues, according to a policy in their groups. In order to see your personal limit, type:


qmgr -c 'p s' | grep u:$USER

The limits are "soft" and "hard". The user is not allowed to run more jobs than are allowed by the hard limit. Please note that jobs running above the soft limit can be suspended in any queue. For the group limits:


qmgr -c 'p s' | grep g:`id -gn`

PBS Professional Cheat-Sheet

PBS Professional Quick Reference Guide for users

Starting MATLAB parpool fails or allocates too few workers

The best solution to avoid limitations on Parallel toolbox in MATLAB is to set a new MATLAB preferences folder location for each job. To do this add the line below to your submission script.


export MATLAB_PREFDIR=${WORK}/my_project/${PBS_JOBID}

It is a good idea to have a Job ID in a folder name. One can check the folder location from the MATLAB script, by running "prefdir" command.