Message295254
| Author |
robbuckley |
| Recipients |
paul.moore, robbuckley, steve.dower, tim.golden, zach.ware |
| Date |
2017年06月06日.12:49:39 |
| SpamBayes Score |
-1.0 |
| Marked as misclassified |
Yes |
| Message-id |
<1496753379.54.0.823104830335.issue30581@psf.upfronthosting.co.za> |
| In-reply-to |
| Content |
os.cpu_count() seems to report incorrect values on windows systems with >64 logical processors
tried it on 2 similar systems, both running windows 7 / 10 with python 3.6.1 64bit (anaconda):
platform1 - 2x Xeon E5-2698v4. 20 cores/CPU = total 80 logical cpus with hyperthreading
platform2 - 2x Xeon E5-2697v3. 14 cores/CPU = total 56 logical cpus with hyperthreading
os.cpu_count() reports 40 cores on platform1 and 56 on platform2
I would expect 80 and 56 respectively.
I suppose this is because the windows api call used is not aware of processor groups, and reports only the number of processors in the current processor group ( eg GetSystemInfo vs GetMaximumProcessorCount ) |
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