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<title>GNU libgomp: OMP_DEFAULT_DEVICE</title>
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<a name="OMP_005fDEFAULT_005fDEVICE-_002d_002d-Set-the-device-used-in-target-regions"></a>
<h3 class="section">3.3 <code>OMP_DEFAULT_DEVICE</code> &ndash; Set the device used in target regions</h3>
<a name="index-Environment-Variable-2"></a>
<dl compact="compact">
<dt><em>Description</em>:</dt>
<dd><p>Set to choose the device which is used in a <code>target</code> region, unless the
value is overridden by <code>omp_set_default_device</code> or by a <code>device</code>
clause. The value shall be the nonnegative device number. If no device with
the given device number exists, the code is executed on the host. If unset,
device number 0 will be used.
</p>
</dd>
<dt><em>See also</em>:</dt>
<dd><p><a href="omp_005fget_005fdefault_005fdevice.html#omp_005fget_005fdefault_005fdevice">omp_get_default_device</a>, <a href="omp_005fset_005fdefault_005fdevice.html#omp_005fset_005fdefault_005fdevice">omp_set_default_device</a>,
</p>
</dd>
<dt><em>Reference</em>:</dt>
<dd><p><a href="http://www.openmp.org/">OpenMP specification v4.0</a>, Section 4.11
</p></dd>
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