
   controller (command) ...

   Interact with the parallel controller 'pcontrol'.  This command
   groups together several controller sub-commands, listed below.


   controller host (hostname)

   Define a new machine available to the parallel controller.  


   controller check (host) (HostID)
   controller check (job) (JobID)

   Check on the status of a specific host or job known to the parallel
   controller.


   controller status

   Query the parallel controller for its current status


   controller output

   Dump the contents of the parallel controller message buffers.
   These are the messages from the controller itself, rather than the
   messages generated by jobs run by the controller.
