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<title>Work-Item Built-In Functions</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1" />
<meta name="keywords" content="Work-Item Built-In Functions" />
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<body>
<div class="refentry">
<a id="idm1"></a>
<div class="titlepage"></div>
<div xmlns="" class="refnamediv">
<h1>Work-Item Built-In Functions</h1>
<p>Click an item in the table below for details about that function.</p>
</div>
<div class="refsect1">
<a id="springboard"></a>
<h2></h2>
<div class="informaltable">
<table class="informaltable" border="1">
<colgroup>
<col align="left" class="col1" />
<col align="left" class="col2" />
</colgroup>
<tbody>
<tr>
<td align="left">
<a class="citerefentry" href="get_work_dim.html">
<span class="citerefentry">
<span class="refentrytitle">get_work_dim</span>
</span>
</a>
</td>
<td align="left">Number of dimensions in use</td>
</tr>
<tr>
<td align="left">
<a class="citerefentry" href="get_global_size.html">
<span class="citerefentry">
<span class="refentrytitle">get_global_size</span>
</span>
</a>
</td>
<td align="left">Number of global work items</td>
</tr>
<tr>
<td align="left">
<a class="citerefentry" href="get_global_id.html">
<span class="citerefentry">
<span class="refentrytitle">get_global_id</span>
</span>
</a>
</td>
<td align="left">Global work item ID value</td>
</tr>
<tr>
<td align="left">
<a class="citerefentry" href="get_local_size.html">
<span class="citerefentry">
<span class="refentrytitle">get_local_size</span>
</span>
</a>
</td>
<td align="left">Number of local work items</td>
</tr>
<tr>
<td align="left">
<a class="citerefentry" href="get_local_id.html">
<span class="citerefentry">
<span class="refentrytitle">get_local_id</span>
</span>
</a>
</td>
<td align="left">Local work item ID</td>
</tr>
<tr>
<td align="left">
<a class="citerefentry" href="get_num_groups.html">
<span class="citerefentry">
<span class="refentrytitle">get_num_groups</span>
</span>
</a>
</td>
<td align="left">Number of work groups</td>
</tr>
<tr>
<td align="left">
<a class="citerefentry" href="get_group_id.html">
<span class="citerefentry">
<span class="refentrytitle">get_group_id</span>
</span>
</a>
</td>
<td align="left">Work group ID</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="refsect1">
<a id="description"></a>
<h2>Description</h2>
<p>
Built-in work-item functions can be used to query the number of dimensions, the global and local work size specified to <a class="citerefentry" href="clEnqueueNDRangeKernel.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueNDRangeKernel</span></span></a>, and the global and local identifier of each work-item when this kernel is being executed on a device. The number of dimensions, the global and local work size when executing a kernel using the function <a class="citerefentry" href="clEnqueueTask.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueTask</span></span></a> is one.
</p>
</div>
<div class="refsect1">
<a id="specification"></a>
<h2>Specification</h2>
<p>
<img src="pdficon_small1.gif" />
<a href="http://www.khronos.org/registry/cl/specs/opencl-1.0.pdf#page=168" target="OpenCL Spec">OpenCL Specification</a>
</p>
</div>
<div class="refsect1">
<a id="seealso"></a>
<h2>Also see</h2>
<p>
<a class="citerefentry" href="clEnqueueNDRangeKernel.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueNDRangeKernel</span></span></a>,
<a class="citerefentry" href="clEnqueueTask.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueTask</span></span></a>
</p>
</div>
<div xmlns="" class="refsect3" lang="en" xml:lang="en"><a xmlns="http://www.w3.org/1999/xhtml" id="Copyright"></a><h4 xmlns="http://www.w3.org/1999/xhtml"></h4><img xmlns="http://www.w3.org/1999/xhtml" src="KhronosLogo.jpg" /><p xmlns="http://www.w3.org/1999/xhtml"></p>Copyright © 2007-2009 The Khronos Group Inc.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and/or associated documentation files (the
"Materials"), to deal in the Materials without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Materials, and to
permit persons to whom the Materials are furnished to do so, subject to
the condition that this copyright notice and permission notice shall be included
in all copies or substantial portions of the Materials.
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