Torque

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Torque PBS

Modifying pbs_server Configuration

  qmgr -c 'print server' > qmgr_pbs_server.backup

Note: you can simply list the qmgr pbs_server configuration with: qmgr -c 'p s'?.

Modify qmgr Server Variable

An example for modifying a server variable for pbs_server with qmgr.

  $ qmgr
  $ unset server acl_hosts
  $ set server acl_hosts = headnode.hostname

Restarting pbs_server

Sometimes you need to make a change to the pbs_server (or add a new node).

The following shuts down pbs_server without killing jobs.

  $ qterm -t quick
  $ pbs_server

Running the Head Node as a Compute Node

Make sure the correct hostname (local to the compute nodes) is specified in /var/spool/torque/server_priv/nodes and /var/spool/torque/mom_priv/config.

When running pbs_mom from the head node, it may be necessary to specify the local hostname with:

  pbs_mom -H headnode.hostname

If you are running pbs as a service, you may also need to modify the init script for pbs_mom.

Starting pbs_mom at boot (pbs as a Service)

Copy pbs_mom init script into /etc/init.d/

To find where the pbs_mom init script is located, use the locate command.

$ locate /init.d/pbs_mom

/mounts/layout/software/torque/torque-4.1.0/contrib/init.d/pbs_mom
/mounts/layout/software/torque/torque-4.1.0/contrib/init.d/pbs_mom.in
  cp /path/to/contrib/init.d/pbs_mom /etc/init.d/pbs_mom

Add to chkconfig

  $ chkconfig --add pbs_mom
  $ chkconfig pbs_mom on

Custom init script for pbs_mom

You can make a copy of /etc/init.d/pbs_mom called something like my_pbs_mom in order to specify your own pbs_mom flags. For example if you need to specify the local hostname with -H headnode.hostname. If you do this, the above chkconfig commands should be issued with my_pbs_mom instead of pbs_mom.

Note: init scripts should have permissions 0755.

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