Question

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Programatically detect number of physical processors/cores or if hyper-threading is active on Windows, Mac and Linux

I wonder if there is any crossplatform (std or boost based or even c) way to get totall number of cores in a crossplatform manner? (for linux Mac Os X and Windows)

Answer 1

Oooh, you’ll probably have to get down to assembly…

http://code.google.com/p/geekinfo/source/browse/trunk/

Or go boost:

boost::thread::hardware_concurrency(); // returns number of cores/HT/procs