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</head>
<body class="book">
<div id="header">
<h1>cl_intel_mem_channel_property</h1>
</div>
<div id="content">
<div class="sect1">
<h2 id="_name_strings">Name Strings</h2>
<div class="sectionbody">
<div class="paragraph">
<p><code>cl_intel_mem_channel_property</code></p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_contact">Contact</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Kris Kang, Intel (kris <em>dot</em> kang <em>at</em> intel <em>dot</em> com)</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_contributors">Contributors</h2>
<div class="sectionbody">
<div class="ulist">
<ul>
<li>
<p>David Cashman, Intel</p>
</li>
<li>
<p>Michael Kinsner, Intel</p>
</li>
<li>
<p>Peter Yiannacouras, Intel</p>
</li>
<li>
<p>Ben Ashbaugh, Intel</p>
</li>
<li>
<p>Kris Kang, Intel</p>
</li>
</ul>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_notice">Notice</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Copyright (c) 2020 Intel Corporation. All rights reserved.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_status">Status</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Final Draft</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_version">Version</h2>
<div class="sectionbody">
<table class="tableblock frame-all grid-all" style="width: 40%;">
<colgroup>
<col style="width: 50%;">
<col style="width: 50%;">
</colgroup>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Last Modified</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">2020-05-29</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Revision</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">1</p></td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="sect1">
<h2 id="_dependencies">Dependencies</h2>
<div class="sectionbody">
<div class="paragraph">
<p>This extension is written against the OpenCL Specification Version 1.0, Revision 48.</p>
</div>
<div class="paragraph">
<p>This extension requires OpenCL 1.0 or later and the cl_intel_create_buffer_with_properties extension.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_overview">Overview</h2>
<div class="sectionbody">
<div class="paragraph">
<p>On some accelerators, manual partitioning of buffers across different regions
of memory may result in higher performance by spreading high-demand
memory across different interfaces or ports of a memory.</p>
</div>
<div class="paragraph">
<p>This extension allows programmers to request that
a buffer allocation be implemented in a particular region of memory.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_new_api_functions">New API Functions</h2>
<div class="sectionbody">
<div class="paragraph">
<p>None.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_new_api_enums">New API Enums</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Accepted property for the <em>properties</em> parameter to <strong>clCreateBufferWithPropertiesINTEL</strong> to specify the requested channel for the buffer:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlight"><code class="language-c" data-lang="c">#define CL_MEM_CHANNEL_INTEL        0x4213</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_modifications_to_the_opencl_api_specification">Modifications to the OpenCL API Specification</h2>
<div class="sectionbody">
<div class="dlist">
<dl>
<dt class="hdlist1">(Add Table 5.X: <strong>List of supported properties by clCreateBufferWithPropertiesINTEL</strong> to the cl_intel_create_buffer_with_properties extension) </dt>
<dd>
<table class="tableblock frame-all grid-all" style="width: 90%;">
<colgroup>
<col style="width: 16.6666%;">
<col style="width: 16.6666%;">
<col style="width: 66.6668%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">cl_mem_properties_intel enum</th>
<th class="tableblock halign-left valign-top">Property value</th>
<th class="tableblock halign-left valign-top">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>CL_MEM_CHANNEL_INTEL</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>cl_uint</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Identifies the channel/region to which the buffer should be mapped.  The range of legal values is implementation-defined.  This parameter acts as a hint: if the value is not valid, or the implementation is unable to allocate memory in the requested region, it may be ignored without emission of any warning or error.</p></td>
</tr>
</tbody>
</table>
</dd>
</dl>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_issues">Issues</h2>
<div class="sectionbody">
<div class="paragraph">
<p>None.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_revision_history">Revision History</h2>
<div class="sectionbody">
<table class="tableblock frame-all grid-rows spread">
<colgroup>
<col style="width: 4.7619%;">
<col style="width: 14.2857%;">
<col style="width: 14.2857%;">
<col style="width: 66.6667%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">Rev</th>
<th class="tableblock halign-left valign-top">Date</th>
<th class="tableblock halign-left valign-top">Author</th>
<th class="tableblock halign-left valign-top">Changes</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">1</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">2020-05-29</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Kris Kang</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Initial public release</strong></p></td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<div id="footer">
<div id="footer-text">
Last updated 2020-06-18 11:14:00 ADT
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