Hi, On 25 April 2013 18:56, Sangamesh Banappa <[email protected]> wrote: > If a user runs a serial job for 10 hours, and another user runs a > parallel job of 200 cores for 10 hours, then gridengine accounting shows it > as same WALLTIME of 10 hours for both jobs. How? This is could be severly > wrong..
WALLTIME is defined as the time elapsed from start to end of the job. This is not dependent on the number of cores used: two jobs that last 10 hours have -by definition- the same wall-time. The CPUTIME, on the other hand, is defined as the sum of all time slices that CPUs spent executing the code. So the CPU time of a job that engages 200 cores for 10 hours will be roughly 200 times the CPU time of a job that uses 1 core for 10 hours. Regards, Riccardo -- Riccardo Murri http://www.gc3.uzh.ch/people/rm Grid Computing Competence Centre University of Zurich Winterthurerstrasse 190, CH-8057 Zürich (Switzerland) Tel: +41 44 635 4222 Fax: +41 44 635 6888 _______________________________________________ users mailing list [email protected] https://gridengine.org/mailman/listinfo/users
