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   <div id="projectname">Hardware Locality (hwloc)
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<a href="#func-members">Functions</a>  </div>
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<div class="title">Looking at Cache Objects</div>  </div>
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Functions</h2></td></tr>
<tr class="memitem:gad108a09ce400222fe45545257d575489"><td class="memItemLeft" align="right" valign="top">static int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00089.html#gad108a09ce400222fe45545257d575489">hwloc_get_cache_type_depth</a> (<a class="el" href="a00076.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology, unsigned cachelevel, <a class="el" href="a00074.html#gab6e1e7efedae8b341f3ee14fbe53d66c">hwloc_obj_cache_type_t</a> cachetype)</td></tr>
<tr class="separator:gad108a09ce400222fe45545257d575489"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gac4cd480a5deaa4ada047fdd11ae4c070"><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="a00089.html#gac4cd480a5deaa4ada047fdd11ae4c070">hwloc_get_cache_covering_cpuset</a> (<a class="el" href="a00076.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology, <a class="el" href="a00073.html#ga1f784433e9b606261f62d1134f6a3b25">hwloc_const_cpuset_t</a> set)</td></tr>
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<tr class="memitem:ga36f48c32837c7a70b424706e213dcd71"><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="a00089.html#ga36f48c32837c7a70b424706e213dcd71">hwloc_get_shared_cache_covering_obj</a> (<a class="el" href="a00076.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology, <a class="el" href="a00075.html#ga79b8ab56877ef99ac59b833203391c7d">hwloc_obj_t</a> obj)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<h2 class="groupheader">Function Documentation</h2>
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          <td class="memname">static <a class="el" href="a00075.html#ga79b8ab56877ef99ac59b833203391c7d">hwloc_obj_t</a> hwloc_get_cache_covering_cpuset </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00076.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a>&#160;</td>
          <td class="paramname"><em>topology</em>, </td>
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          <td class="paramtype"><a class="el" href="a00073.html#ga1f784433e9b606261f62d1134f6a3b25">hwloc_const_cpuset_t</a>&#160;</td>
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<p>Get the first cache covering a cpuset <code>set</code>. </p>
<dl class="section return"><dt>Returns</dt><dd><code>NULL</code> if no cache matches.</dd></dl>
<dl class="section note"><dt>Note</dt><dd>This function cannot work if the root object does not have a CPU set, e.g. if the topology is made of different machines. </dd></dl>

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          <td class="memname">static int hwloc_get_cache_type_depth </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00076.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a>&#160;</td>
          <td class="paramname"><em>topology</em>, </td>
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          <td class="paramtype">unsigned&#160;</td>
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          <td class="paramtype"><a class="el" href="a00074.html#gab6e1e7efedae8b341f3ee14fbe53d66c">hwloc_obj_cache_type_t</a>&#160;</td>
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<p>Find the depth of cache objects matching cache depth and type. </p>
<p>Return the depth of the topology level that contains cache objects whose attributes match <code>cachedepth</code> and <code>cachetype</code>. This function intends to disambiguate the case where <a class="el" href="a00078.html#ga8bec782e21be313750da70cf7428b374" title="Returns the depth of objects of type type. ">hwloc_get_type_depth()</a> returns <code>HWLOC_TYPE_DEPTH_MULTIPLE</code>.</p>
<p>If no cache level matches, <code>HWLOC_TYPE_DEPTH_UNKNOWN</code> is returned.</p>
<p>If <code>cachetype</code> is <code>HWLOC_OBJ_CACHE_UNIFIED</code>, the depth of the unique matching unified cache level is returned.</p>
<p>If <code>cachetype</code> is <code>HWLOC_OBJ_CACHE_DATA</code> or <code>HWLOC_OBJ_CACHE_INSTRUCTION</code>, either a matching cache, or a unified cache is returned.</p>
<p>If <code>cachetype</code> is <code>-1</code>, it is ignored and multiple levels may match. The function returns either the depth of a uniquely matching level or <code>HWLOC_TYPE_DEPTH_MULTIPLE</code>. </p>

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          <td class="memname">static <a class="el" href="a00075.html#ga79b8ab56877ef99ac59b833203391c7d">hwloc_obj_t</a> hwloc_get_shared_cache_covering_obj </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00076.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a>&#160;</td>
          <td class="paramname"><em>topology</em>, </td>
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          <td class="paramtype"><a class="el" href="a00075.html#ga79b8ab56877ef99ac59b833203391c7d">hwloc_obj_t</a>&#160;</td>
          <td class="paramname"><em>obj</em>&#160;</td>
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<p>Get the first cache shared between an object and somebody else. </p>
<dl class="section return"><dt>Returns</dt><dd><code>NULL</code> if no cache matches or if an invalid object is given. </dd></dl>

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