From: Christian Holm Christensen (cholm@hehi03.nbi.dk)
Date: Wed Mar 26 2003 - 09:47:54 EST
Hi Flemming, Djam, Ionut, and others "Flemming Videbaek" <videbaek@sgs1.hirg.bnl.gov> wrote concerning LSF jobs [Wed, 26 Mar 2003 09:10:44 -0500] ---------------------------------------------------------------------- > The user aic is Ionut Arsene from Bucharest, i.e a bona fide brahms > user; why the other jobs do not show any information I do not > understand - will talk to the LSF expert. As far as I can tell, Ionut submitted the jobs with the option `-R ncpus' which will tell LSF to start the particular job on many CPUs. However, Ionut did not specify how many CPUs, so it defaults to some number, which I guess is 1-20. You can tell that from the output of `bsub -l <job#>'. Ionut, I'm not so sure that starting the job on several CPUs make sense. I looked into your files `/brahms/u/aic/work/work3/run.sh' and `/brahms/u/aic/work/work3/calibrate.cpp' and it doesn't seem to be a parallel program. Hence, what will happen is, that the same (exact same) job will be executed on 1-20 hosts, each overwriting the same output file `calibData_run00<xxxx>_seq<x>.root'. For the use of the `ncpus' resource to make sense, I think you have to use some sort of parallel execution environment, like PROOF or MLP, and your code must be written to use that environment. Your `calibrate.cpp' does not look like that. Perhaps a few words on what you're trying to do would help us out. Yours, ___ | Christian Holm Christensen |_| | ------------------------------------------------------------- | | Address: Sankt Hansgade 23, 1. th. Phone: (+45) 35 35 96 91 _| DK-2200 Copenhagen N Cell: (+45) 24 61 85 91 _| Denmark Office: (+45) 353 25 305 ____| Email: cholm@nbi.dk Web: www.nbi.dk/~cholm | |
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