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<!-- ================================ SYNOPSIS -->
<refnamediv id="prefetch">
Prefetch bytes into the global cache.
<refsynopsisdiv xmlns:xlink=""><title></title>
<link xlink:href="scalarDataTypes.html">void</link>
<paramdef>const <link xlink:href="global.html">__global</link> gentype<parameter>*p</parameter></paramdef>
<paramdef><link xlink:href="scalarDataTypes.html">size_t</link><parameter>num_gentypes</parameter></paramdef>
<!-- ================================ DESCRIPTION -->
<refsect1 id="description"><title>Description</title>
Prefetch <varname>num_gentypes</varname> * sizeof(<type>gentype</type>)
bytes into the global cache. The prefetch instruction is applied to a work-item in a work-group and does not affect the functional behavior of the kernel.
<!-- ================================ NOTES -->
<refsect1 id="notes"><title>Notes</title>
The OpenCL C programming language implements Async Copy and Prefetch functions that provide asynchronous copies between global and local memory and a prefetch from global memory. The generic type name <type>gentype</type> indicates the built-in data types <type>char</type>, <type>char{2|4|8|16}</type>, <type>uchar</type>, <type>uchar{2|4|8|16}</type>, <type>short</type>, <type>short{2|4|8|16}</type>, <type>ushort</type>, <type>ushort{2|4|8|16}</type>, <type>int</type>, <type>int{2|4|8|16}</type>, <type>uint</type>, <type>uint{2|4|8|16}</type>, <type>long</type>, <type>long{2|4|8|16}</type>, <type>ulong</type>, <type>ulong{2|4|8|16}</type> or <type>float</type>, <type>float{2|4|8|16}</type> as the type for the arguments unless otherwise stated.
If extended with <citerefentry><refentrytitle>cl_khr_fp64</refentrytitle></citerefentry>, generic type name <type>gentype</type> may indicate <type>double</type> and <type>double{2|4|8|16}</type> as arguments and return values. If extended with <citerefentry><refentrytitle>cl_khr_fp16</refentrytitle></citerefentry>, generic type name <type>gentype</type> may indicate <type>half</type> and <type>half{2|4|8|16}</type> as arguments and return values.
<!-- ================================ EXAMPLE -->
<refsect2 id="example1">
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<colspec colname="col1" colnum="1" />
Example goes here - it will be set in "code" type with white space preserved.
<!-- ================================ SPECIFICATION -->
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<refsect1 id="specification"><title>Specification</title>
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<olink uri="asyncCopyFunctions">OpenCL Specification</olink>
<!-- ================================ ALSO SEE -->
<refsect1 id="seealso"><title>Also see</title>
<citerefentry href="asyncCopyFunctions"><refentrytitle>Async Copy and Prefetch Functions</refentrytitle></citerefentry>
<!-- ============================== COPYRIGHT -->
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<refsect3 id="Copyright"><title></title>
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