Ports used by Torque

There are 5 ports being used by Torque. So make sure you open these ports on your PBS_SERVER:

UDP: 1023, 15001-15004

iptables -A INPUT -i eth1 -p udp -m state --state --dport 1023 NEW,ESTABLISHED,RELATED -j ACCEPT

This will open UDP port 1023.

Torque is the resource manager, maui is the job scheduler:
pbs_server tells a job where to run, maui tells the job when to run.