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<title>GNU libgomp: omp_set_num_threads</title>
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<a name="omp_005fset_005fnum_005fthreads-_002d_002d-Set-upper-team-size-limit"></a>
<h3 class="section">2.27 <code>omp_set_num_threads</code> &ndash; Set upper team size limit</h3>
<dl compact="compact">
<dt><em>Description</em>:</dt>
<dd><p>Specifies the number of threads used by default in subsequent parallel
sections, if those do not specify a <code>num_threads</code> clause. The
argument of <code>omp_set_num_threads</code> shall be a positive integer.
</p>
</dd>
<dt><em>C/C++</em>:</dt>
<dd><table>
<tr><td width="20%"><em>Prototype</em>:</td><td width="80%"><code>void omp_set_num_threads(int num_threads);</code></td></tr>
</table>
</dd>
<dt><em>Fortran</em>:</dt>
<dd><table>
<tr><td width="20%"><em>Interface</em>:</td><td width="80%"><code>subroutine omp_set_num_threads(num_threads)</code></td></tr>
<tr><td width="20%"></td><td width="80%"><code>integer, intent(in) :: num_threads</code></td></tr>
</table>
</dd>
<dt><em>See also</em>:</dt>
<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>
</p>
</dd>
<dt><em>Reference</em>:</dt>
<dd><p><a href="http://www.openmp.org/">OpenMP specification v4.0</a>, Section 3.2.1.
</p></dd>
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