Deprecated: please see new documentation site.

Interactive jobs can be started by executing qsub without an input file:

 [user@m1]$ qsub -I -l nodes=2:ppn=4 -l walltime=00:10:00 -q workq

As with any other job request, the time it takes to actually begin executing depends on how busy the system is and the resources requested. You have the option of using any available queue on the system, so matching the resources with the queue will tend to decrease the wait time.

Once the job starts running, you will be automatically logged into a node (here m026) and can begin issuing commands. This example starts up a 4 node instance of program05 residing in directory My_Programs:

 [user@m026]$ cd /path/to/My_Programs
 [user@m026]$ mpirun -np 8 ./program05

The node, or set of notes is yours to use for the length of time requested. If desired, one can also create an X-windows connection to display graphical information on your local machine. The syntax is:

 [user@machine]$ qsub -I -l nodes=1:ppn=4 -l walltime=00:10:00 -X

Make sure that the ppn=X argument matches that required by the machine you are on.

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