On 05/02/2016 12:13, Charles DiMaggio wrote:
Running 10.9.5 on 3.7Ghz Quad-Core:
$ /usr/sbin/sysctl -n hw.physicalcpu
4
$ /usr/sbin/sysctl -n hw.logicalcp
second level name logicalcp in hw.logicalcp is invalid
Thanks, but it is hw.logicalcpu we need to check.
Charles DiMaggio, PhD, MPH
Professor of Surgery and Population Health
Director of Injury Research
Department of Surgery
New York University School of Medicine
On Feb 5, 2016, at 7:07 AM, Prof Brian Ripley <rip...@stats.ox.ac.uk
<mailto:rip...@stats.ox.ac.uk>> wrote:
sysctl on 10.11 has options which would enable us to differentiate
between logical and physical codes on parallel::detectCores ---
however these are not documented in Apple's online man pages, which
are for 10.9. Could someone running 10.9 and someone for 10.10 report if
/usr/sbin/sysctl -n hw.physicalcpu
/usr/sbin/sysctl -n hw.logicalcpu
run in a terminal work and gives the correct result? (Normally the
second will be twice the first taking account of hyperthreading.)
Thanks in advance.
--
Brian D. Ripley, rip...@stats.ox.ac.uk <mailto:rip...@stats.ox.ac.uk>
Emeritus Professor of Applied Statistics, University of Oxford
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--
Brian D. Ripley, rip...@stats.ox.ac.uk
Emeritus Professor of Applied Statistics, University of Oxford
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