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, [email protected]
Emeritus Professor of Applied Statistics, University of Oxford
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