saguaro1:~/ > qsub -I
(note that is a capital ‘i’ for ‘interactive’, not a lower case ‘L’) This will give you something like the following:
qsub: waiting for job 4213873.moab.local to start qsub: job 4213873.moab.local ready s50-10:~/ >
You now have an interactive shell on one of the compute nodes, in this case ‘s50-10’.
[saguaro1:~]$ module avail
To load a specific module from that list:
[saguaro1:~]$ module load openmpi/1.4.3-intel
This will load the Intel compiler suite with the OpenMPI version 1.4.3 library. (Note that when you are reading this, that version is probably out of date; be sure to check the available modules). Whenever you open a new shell by connecting to Saguaro or using a job script, you will start with a clean slate so be sure to load whatever modules you require before continuing to avoid frustration.