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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
"http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
<refentry>
<refentryinfo>
<keywordset>
<keyword>
clGetKernelInfo
</keyword>
</keywordset>
</refentryinfo>
<refmeta>
<refentrytitle>
clGetKernelInfo
</refentrytitle>
<refmiscinfo>
<copyright>
<year>2007-2011</year>
<holder>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.</holder>
</copyright>
</refmiscinfo>
<manvolnum>3</manvolnum>
</refmeta>
<!-- ================================ SYNOPSIS -->
<refnamediv id="clGetKernelInfo">
<refname>
clGetKernelInfo
</refname>
<refpurpose>
Returns information about the kernel object.
</refpurpose>
</refnamediv>
<refsynopsisdiv xmlns:xlink="http://www.w3.org/1999/xlink"><title></title>
<funcsynopsis>
<funcprototype>
<funcdef>
<link xlink:href="scalarDataTypes.html">cl_int</link>
<function>clGetKernelInfo</function>
</funcdef>
<paramdef>
<link xlink:href="abstractDataTypes.html">cl_kernel</link>
<parameter>kernel</parameter>
</paramdef>
<paramdef>
<link xlink:href="#cl_kernel_info">cl_kernel_info</link>
<parameter>param_name</parameter>
</paramdef>
<paramdef>
<link xlink:href="scalarDataTypes.html">size_t</link>
<parameter>param_value_size</parameter>
</paramdef>
<paramdef>
<link xlink:href="scalarDataTypes.html">void</link>
<parameter>*param_value</parameter>
</paramdef>
<paramdef>
<link xlink:href="scalarDataTypes.html">size_t</link>
<parameter>*param_value_size_ret</parameter>
</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<!-- ================================ PARAMETERS -->
<refsect1 id="parameters">
<title>Parameters</title>
<variablelist>
<varlistentry>
<term> <varname> kernel </varname> </term>
<listitem>
<para>
Specifies the kernel object being queried.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term> <varname> param_name </varname> </term>
<listitem>
<para>
Specifies the information to query. The list of supported
<varname>param_name</varname> types and the information returned in
<varname>param_value</varname> by <function>clGetKernelInfo</function>
is described in the table below.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term> <varname> param_value </varname> </term>
<listitem>
<para>
A pointer to memory where the appropriate result being queried is returned.
If <varname>param_value</varname> is NULL, it is ignored.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term> <varname> param_value_size </varname> </term>
<listitem>
<para>
Used to specify the size in bytes of memory pointed to
by <varname>param_value</varname>.
This size must be ≥ size of return
type as described in the table below.
</para>
<!-- table 5.15 -->
<informaltable frame="all"><anchor id="cl_kernel_info"/>
<tgroup cols="3" align="left" colsep="1" rowsep="1">
<colspec colname="col1" colnum="1" />
<colspec colname="col2" colnum="2" />
<colspec colname="col3" colnum="3" />
<thead>
<row>
<entry>cl_kernel_info</entry>
<entry>Return Type</entry>
<entry>Info. returned in <varname>param_value</varname></entry>
</row>
</thead>
<tbody>
<row>
<entry><constant>CL_KERNEL_FUNCTION_NAME</constant></entry>
<entry>char[]</entry>
<entry>
Return the kernel function name.
</entry>
</row>
<row>
<entry><constant>CL_KERNEL_NUM_ARGS</constant></entry>
<entry>cl_uint</entry>
<entry>
Return the number of arguments to <varname>kernel</varname>.
</entry>
</row>
<row>
<entry><constant>CL_KERNEL_REFERENCE_COUNT</constant></entry>
<entry>cl_uint</entry>
<entry>
<para>
Return the <varname>kernel</varname> reference count.
</para>
<para>
The reference count returned should be considered
immediately stale. It is unsuitable for general use
in applications. This feature is provided for identifying memory leaks.
</para>
</entry>
</row>
<row>
<entry><constant>CL_KERNEL_CONTEXT</constant></entry>
<entry>cl_context</entry>
<entry>
Return the context associated with <varname>kernel</varname>.
</entry>
</row>
<row>
<entry><constant>CL_KERNEL_PROGRAM</constant></entry>
<entry>cl_program</entry>
<entry>
Return the program object associated with <varname>kernel</varname>.
</entry>
</row>
<row>
<entry><constant>CL_KERNEL_ATTRIBUTES</constant></entry>
<entry>char[]</entry>
<entry>
<para>
Returns any attributes specified using the
__<citerefentry><refentrytitle>attribute</refentrytitle></citerefentry>__
qualifier with the kernel function declaration in
the program source. These attributes include those on the
__<citerefentry><refentrytitle>attribute</refentrytitle></citerefentry>__
page and other attributes supported by an implementation.
</para>
<para>
Attributes are returned as they were declared inside
__<citerefentry><refentrytitle>attribute</refentrytitle></citerefentry>__((...)),
with any surrounding whitespace and embedded newlines
removed. When multiple attributes are present, they are
returned as a single, space delimited string.
</para>
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</listitem>
</varlistentry>
<varlistentry>
<term> <varname> param_value_size_ret </varname> </term>
<listitem>
<para>
the actual size in bytes of data copied to <varname>param_value</varname>.
If <varname>param_value_size_ret</varname> is NULL, it is ignored.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<!-- ================================ NOTES -->
<!-- ================================ ERRORS -->
<refsect1 id="errors"><title>Errors</title>
<para>
Returns <errorname>CL_SUCCESS</errorname> if the function is executed
successfully. Otherwise, it returns one of the following errors:
</para>
<itemizedlist mark="disc">
<listitem>
<errorname>CL_INVALID_VALUE</errorname> if <varname>param_name</varname> is not
valid, or if size in bytes specified by <varname>param_value_size</varname>
is < size of return type as described in the table above and
<varname>param_value</varname> is not NULL.
</listitem>
<listitem>
<errorname>CL_INVALID_KERNEL</errorname> if <varname>kernel</varname>
is not a valid kernel object.
</listitem>
<listitem>
<errorname>CL_OUT_OF_RESOURCES</errorname> if there is a failure to
allocate resources required by the
OpenCL implementation on the device.
</listitem>
<listitem>
<errorname>CL_OUT_OF_HOST_MEMORY</errorname> if there is a failure
to allocate resources required by the
OpenCL implementation on the host.
</listitem>
</itemizedlist>
</refsect1>
<!-- ================================ EXAMPLE -->
<!-- DO NOT DELETE IN CASE AN EXAMPLE IS ADDED IN THE FUTURE -->
<!--
<refsect2 id="example1">
<title>
Example
</title>
<informaltable frame="none">
<tgroup cols="1" align="left" colsep="0" rowsep="0">
<colspec colname="col1" colnum="1" />
<tbody>
<row>
<entry>
Example goes here - it will be set in "code" type with white space preserved.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect2>
-->
<!-- ================================ SPECIFICATION -->
<!-- Set the "uri" attribute in the <olink /> element to the "named destination" for the PDF page
-->
<refsect1 id="specification"><title>Specification</title>
<para>
<imageobject>
<imagedata fileref="pdficon_small1.gif" format="gif" />
</imageobject>
<olink uri="clGetKernelInfo">OpenCL Specification</olink>
</para>
</refsect1>
<!-- ================================ ALSO SEE -->
<refsect1 id="seealso"><title>Also see</title>
<para>
<citerefentry><refentrytitle>clCreateKernel</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>clCreateKernelsInProgram</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>clGetKernelArgInfo</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>clRetainKernel</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>clReleaseKernel</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>clSetKernelArg</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>clGetKernelWorkGroupInfo</refentrytitle></citerefentry>
</para>
</refsect1>
<!-- ================================ COPYRIGHT -->
<!-- Content included from copyright.inc.xsl -->
<refsect3 id="Copyright"><title></title>
<imageobject>
<imagedata fileref="KhronosLogo.jpg" format="jpg" />
</imageobject>
<para />
</refsect3>
<!-- 19-Oct-2011 -->
</refentry>
|
