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Hi Leif, is that because they might not be stopped at the same time? thanks cheers alessandra On Tue, 28 Jun 2005, Leif Nixon wrote: > "Bly, MJ (Martin)" <[log in to unmask]> writes: > >> You don't need to drain the queues, just temporarily stop the jobs. For >> PBS/torque: >> >> qsig -s STOP `qselect -q whetever -s R` >> >> reboot, and restart the jobs >> >> qsig -s CONT `qselect -q whatever -s R` > > That might cause MPI jobs to go out of sync and crash/lock-up/whatever. > > -- > Leif Nixon - Systems expert > ------------------------------------------------------------ > National Supercomputer Centre - Linkoping University > ------------------------------------------------------------ > -- ******************************************** * Dr Alessandra Forti * * Technical Coordinator - NorthGrid Tier2 * * http://www.hep.man.ac.uk/u/aforti * ********************************************