There are plenty of processors available. Why won't my job run?
If showq indicates that your job is in the BLOCKED state, then your job is not running because you have exceeded one of the queueing limits specified in the Usage Guidelines section for the system you are trying to use. To help you determine which limit your job is exceeding, issue the checkjob <jobid> command.
But if your job in the IDLE state, then your wall clock time request may cause you to run up against a system-wide reservation that is set once a month for a 2-hour regular maintenance period on each cluster. To see if that is the problem, issue the showbf command and see how many days it states are left before the next reservation. If that is the problem, remove your job from the queue with qdel, reduce your wall clock time to be less than the amount remaining according to showbf, and resubmit your job with qsub.