All the jobs accounting is stored in a text file. Every day an accounting file is created in this format YYYYMMDD .
The location of accounting data is $PBS_HOME/server_priv/accounting ( source /etc/pbs.conf first, if you are unaware of the PBS_HOME location )
My question is if statistical evaluation is possible for the queuing system (i.e. number of compute cores per user, etc …) ?
[Answer]: Yes, you need to parse the accounting logs and stored it in a format readable by the Statistical software and take it from there .
FYI only : Also, if you are interested you can use PBS Analytics (http://www.pbsgridworks.com/PBSProduct.aspx?n=PBS-Analytics&c=Overview-and-Capabilities )
Are the histories data in readable format to be processed with scripts?