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Detect number of CPUs on a machine

by Valeriu Paloş on November 6, 2009

UPDATE: Steven pointed out (very nicely) that there’s no need for cat in this picture, grep would do just fine on its own. So, thanks Steven! Detect how many CPU cores are present on the running machine: grep -c processor /proc/cpuinfo This can be very useful when writing multi-threaded programs to properly match the number […]