Message boards :
ATLAS application :
set ATLAS "# of cpus/jobs" in app_config.xml?
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Send message Joined: 28 Mar 20 Posts: 23 Credit: 108,085 RAC: 60  
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Hi, I've recently joined lhc@home and just got my first ATLAS tasks last night (thanks to help on the Number Crunching forum). I noticed that all of the ATLAS tasks say "Ready to start (4 CPUs)". I assume that means each ATLAS task will use all 4 cores to run. I had that issue with cosmology@home - I don't want all the cores being monopolized by 1 Task/project. I was able to fix that for cosmology@home by creating an app_config.xml and setting "<max_concurrent>" and "<avg_ncpus>". Is it possible to do the same thing for the ATLAS app in lhc@home? If so, what would the exact "<app_name>" be? I realize I can accomplish most (or all) of this by setting the "Max # CPUs" and "Max # jobs" options in my project preferences, but I was wondering if it could be done (perhaps more granularly) in the app_config.xml. Thanks. Doug |
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Send message Joined: 27 Sep 08 Posts: 807 Credit: 652,425,567 RAC: 280,447    |
Something like this will work: <app_version> <app_name>ATLAS</app_name> <plan_class>vbox64_mt_mcore_atlas</plan_class> <avg_ncpus>1.0</avg_ncpus> <cmdline>--memory_size_mb 4000</cmdline> </app_version> You can do on a per computer basis with this, if you only have 1 PC then it doesn't make much difference I think |
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