Message boards : ATLAS application : native_mt : running time computation question
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Message 36540 - Posted: 23 Aug 2018, 11:31:24 UTC

Hello,

Looking at this task, it looks like the math is incorrect for the running time compare to the CPU time. Am I wrong ?

task # 205157863
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bronco

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Message 36543 - Posted: 23 Aug 2018, 13:36:12 UTC - in response to Message 36540.  

No, you are correct. Stderr output says THREADS=2 so CPU time should be slightly less than 2 X (run time). The CPU time is appropriate for an 8 thread task.
I have seen this too on a few of my tasks. I think maybe it happens if I alter the nthreads argument in app_config.xml after the task downloads? For example, --nthreads=8 when the task downloads but after it downloads and before it runs --nthreads=2.
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Message boards : ATLAS application : native_mt : running time computation question


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