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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Hardware Locality (hwloc): Interoperability with Intel Xeon Phi (MIC)</title>
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   <div id="projectname">Hardware Locality (hwloc)
   &#160;<span id="projectnumber">1.10.0</span>
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<a href="#func-members">Functions</a>  </div>
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<div class="title">Interoperability with Intel Xeon Phi (MIC)</div>  </div>
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Functions</h2></td></tr>
<tr class="memitem:ga91bafa51abe81527f72437e24ad5944e"><td class="memItemLeft" align="right" valign="top">static int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00112.html#ga91bafa51abe81527f72437e24ad5944e">hwloc_intel_mic_get_device_cpuset</a> (<a class="el" href="a00076.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology, int idx, <a class="el" href="a00073.html#ga4bbf39b68b6f568fb92739e7c0ea7801">hwloc_cpuset_t</a> set)</td></tr>
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<tr class="memitem:gabce0465e853de74be84cafcb96dd48ab"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="a00075.html#ga79b8ab56877ef99ac59b833203391c7d">hwloc_obj_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00112.html#gabce0465e853de74be84cafcb96dd48ab">hwloc_intel_mic_get_device_osdev_by_index</a> (<a class="el" href="a00076.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology, unsigned idx)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>This interface offers ways to retrieve topology information about Intel Xeon Phi (MIC) devices. </p>
<h2 class="groupheader">Function Documentation</h2>
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          <td class="memname">static int hwloc_intel_mic_get_device_cpuset </td>
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          <td class="paramtype"><a class="el" href="a00076.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a>&#160;</td>
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<p>Get the CPU set of logical processors that are physically close to MIC device whose index is <code>idx</code>. </p>
<p>Return the CPU set describing the locality of the MIC device whose index is <code>idx</code>.</p>
<p>Topology <code>topology</code> and device index <code>idx</code> must match the local machine. I/O devices detection is not needed in the topology.</p>
<p>The function only returns the locality of the device. If more information about the device is needed, OS objects should be used instead, see <a class="el" href="a00112.html#gabce0465e853de74be84cafcb96dd48ab" title="Get the hwloc OS device object corresponding to the MIC device for the given index. ">hwloc_intel_mic_get_device_osdev_by_index()</a>.</p>
<p>This function is currently only implemented in a meaningful way for Linux; other systems will simply get a full cpuset. </p>

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          <td class="memname">static <a class="el" href="a00075.html#ga79b8ab56877ef99ac59b833203391c7d">hwloc_obj_t</a> hwloc_intel_mic_get_device_osdev_by_index </td>
          <td>(</td>
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<p>Get the hwloc OS device object corresponding to the MIC device for the given index. </p>
<p>Return the OS device object describing the MIC device whose index is <code>idx</code>. Return NULL if there is none.</p>
<p>The topology <code>topology</code> does not necessarily have to match the current machine. For instance the topology may be an XML import of a remote host. I/O devices detection must be enabled in the topology.</p>
<dl class="section note"><dt>Note</dt><dd>The corresponding PCI device object can be obtained by looking at the OS device parent object. </dd></dl>

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