@node ax_count_cpus
@unnumberedsec ax_count_cpus

@majorheading Synopsis

@smallexample
AX_COUNT_CPUS([ACTION-IF-DETECTED],[ACTION-IF-NOT-DETECTED])
@end smallexample

@majorheading Description

Attempt to count the number of logical processor cores (including
virtual and HT cores) currently available to use on the machine and
place detected value in CPU_COUNT variable.

On successful detection, ACTION-IF-DETECTED is executed if present. If
the detection fails, then ACTION-IF-NOT-DETECTED is triggered. The
default ACTION-IF-NOT-DETECTED is to set CPU_COUNT to 1.

@majorheading Source Code

Download the
@uref{http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_count_cpus.m4,latest
version of @file{ax_count_cpus.m4}} or browse
@uref{http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=history;f=m4/ax_count_cpus.m4,the
macro's revision history}.

@majorheading License

@w{Copyright @copyright{} 2014,2016 Karlson2k (Evgeny Grin) @email{k2k@@narod.ru}} @* @w{Copyright @copyright{} 2012 Brian Aker @email{brian@@tangent.org}} @* @w{Copyright @copyright{} 2008 Michael Paul Bailey @email{jinxidoru@@byu.net}} @* @w{Copyright @copyright{} 2008 Christophe Tournayre @email{turn3r@@users.sourceforge.net}}

Copying and distribution of this file, with or without modification, are
permitted in any medium without royalty provided the copyright notice
and this notice are preserved. This file is offered as-is, without any
warranty.