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<title>GNU libgomp: omp_set_num_threads</title>
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Next: <a href="omp_005fset_005fschedule.html#omp_005fset_005fschedule" accesskey="n" rel="next">omp_set_schedule</a>, Previous: <a href="omp_005fset_005fnested.html#omp_005fset_005fnested" accesskey="p" rel="prev">omp_set_nested</a>, Up: <a href="Runtime-Library-Routines.html#Runtime-Library-Routines" accesskey="u" rel="up">Runtime Library Routines</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Library-Index.html#Library-Index" title="Index" rel="index">Index</a>]</p>
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<a name="omp_005fset_005fnum_005fthreads-_002d_002d-Set-upper-team-size-limit"></a>
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<h3 class="section">2.28 <code>omp_set_num_threads</code> – Set upper team size limit</h3>
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<dl compact="compact">
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<dt><em>Description</em>:</dt>
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<dd><p>Specifies the number of threads used by default in subsequent parallel
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sections, if those do not specify a <code>num_threads</code> clause. The
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argument of <code>omp_set_num_threads</code> shall be a positive integer.
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</p>
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</dd>
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<dt><em>C/C++</em>:</dt>
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<dd><table>
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<tr><td width="20%"><em>Prototype</em>:</td><td width="80%"><code>void omp_set_num_threads(int num_threads);</code></td></tr>
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</table>
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</dd>
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<dt><em>Fortran</em>:</dt>
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<dd><table>
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<tr><td width="20%"><em>Interface</em>:</td><td width="80%"><code>subroutine omp_set_num_threads(num_threads)</code></td></tr>
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<tr><td width="20%"></td><td width="80%"><code>integer, intent(in) :: num_threads</code></td></tr>
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</table>
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</dd>
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<dt><em>See also</em>:</dt>
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<dd><p><a href="OMP_005fNUM_005fTHREADS.html#OMP_005fNUM_005fTHREADS">OMP_NUM_THREADS</a>, <a href="omp_005fget_005fnum_005fthreads.html#omp_005fget_005fnum_005fthreads">omp_get_num_threads</a>, <a href="omp_005fget_005fmax_005fthreads.html#omp_005fget_005fmax_005fthreads">omp_get_max_threads</a>
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</p>
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</dd>
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<dt><em>Reference</em>:</dt>
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<dd><p><a href="http://www.openmp.org/">OpenMP specification v4.5</a>, Section 3.2.1.
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</p></dd>
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</dl>
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