Why my same job is taking different CPU minutes ? I have not changed anything i just submited my job again. So for every run the CPU time is different .i Can understand that the variation in the elasped time but i m clueless abt the CPU time variation. Please let me have the solution of this variation.
Joined: 23 Nov 2006 Posts: 19270 Location: Inside the Matrix
Is it possible that the content of the input file(s) have changed between runs?
If the input is on tape, is the same tape drive allocated for the runs that show different cpu times? If there was a lot of retry operations (temporary i/o errors) this may cause more cpu time to be required.
Does the clock time change as well as the cpu time?