Message boards : ATLAS Application : Sometimes atlas jobs use more cpu and memory than required.
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kotenok2000
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Message 8062 - Posted: 27 Apr 2023, 13:41:28 UTC
Last modified: 27 Apr 2023, 13:42:26 UTC

I have set atlas dev native to use one core, but sometimes it tries to run it on all cores and uses all of
ram and swap.
My vmware vm is set to use 6144 mb of ram.
When i run atlas dev on virtualbox boinc allocates 4100 mb for 1 core.
https://lhcathomedev.cern.ch/lhcathome-dev/result.php?resultid=3209999

4800 mb for 8 cores
https://lhcathomedev.cern.ch/lhcathome-dev/result.php?resultid=3207808
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computezrmle
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Message 8064 - Posted: 27 Apr 2023, 15:08:54 UTC - in response to Message 8062.  

Unfortunately David Cameron left CERN to start a new job.
Among the last tests he made here were modifications to find out optimized (RAM) settings for ATLAS v3.x.
Might be those tests are not yet completed and need to be finished when team has found a successor.

Beside that you mentioned ATLAS native but linked to ATLAS vbox tasks.
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kotenok2000
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Message 8065 - Posted: 27 Apr 2023, 15:12:02 UTC - in response to Message 8064.  

Here are atlas native tasks.
https://lhcathomedev.cern.ch/lhcathome-dev/results.php?hostid=4912&offset=0&show_names=0&state=0&appid=5
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Message boards : ATLAS Application : Sometimes atlas jobs use more cpu and memory than required.


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