[torqueusers] question about prologue / epilogue

[Glen Beane]

Occasionally a node issue can result in a job bouncing between the Q 
and R state  (torque tries to start the job, fails, waits, and tries 
again).  This goes on and on until we intervene.

Will the prologue and epilogue get run every time?  I suspect the 
epilogue will only run when the job goes into the E state.

I do some tasks in both the prologue and epilogue that I want to make 
sure only get run once per job, which I can do with a little work, but 
I just want to make sure the effort is necessary.