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-<span id="module:ProcessorCount"></span><h1>ProcessorCount<a class="headerlink" href="#processorcount" title="Permalink to this headline">ΒΆ</a></h1>
-<p>ProcessorCount(var)</p>
-<p>Determine the number of processors/cores and save value in ${var}</p>
-<p>Sets the variable named ${var} to the number of physical cores
-available on the machine if the information can be determined.
-Otherwise it is set to 0. Currently this functionality is implemented
-for AIX, cygwin, FreeBSD, HPUX, IRIX, Linux, Mac OS X, QNX, Sun and
-Windows.</p>
-<p>This function is guaranteed to return a positive integer (&gt;=1) if it
-succeeds. It returns 0 if there&#8217;s a problem determining the processor
-count.</p>
-<p>Example use, in a ctest -S dashboard script:</p>
-<div class="highlight-default"><div class="highlight"><pre><span></span>include(ProcessorCount)
-ProcessorCount(N)
-if(NOT N EQUAL 0)
- set(CTEST_BUILD_FLAGS -j${N})
- set(ctest_test_args ${ctest_test_args} PARALLEL_LEVEL ${N})
-endif()
-</pre></div>
-</div>
-<p>This function is intended to offer an approximation of the value of
-the number of compute cores available on the current machine, such
-that you may use that value for parallel building and parallel
-testing. It is meant to help utilize as much of the machine as seems
-reasonable. Of course, knowledge of what else might be running on the
-machine simultaneously should be used when deciding whether to request
-a machine&#8217;s full capacity all for yourself.</p>
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