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| <!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> |
| clEnqueueNativeKernel |
| </keyword> |
| </keywordset> |
| </refentryinfo> |
| |
| <refmeta> |
| <refentrytitle>clEnqueueNativeKernel</refentrytitle> |
| |
| <refmiscinfo> |
| <copyright> |
| <year>2007-2009</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>2</manvolnum> |
| </refmeta> |
| |
| <!-- ================================ SYNOPSIS --> |
| |
| <refnamediv id="clEnqueueNativeKernel"> |
| <refname>clEnqueueNativeKernel</refname> |
| |
| <refpurpose> |
| Enqueues a command to execute a native C/C++ function not compiled using the OpenCL compiler. |
| </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> |
| clEnqueueNativeKernel |
| </function> |
| </funcdef> |
| |
| <paramdef><link xlink:href="abstractDataTypes.html">cl_command_queue</link><parameter>command_queue</parameter></paramdef> |
| <paramdef><link xlink:href="scalarDataTypes.html">void</link><parameter>(*user_func)(void *)</parameter></paramdef> |
| <paramdef><link xlink:href="scalarDataTypes.html">void</link><parameter>*args</parameter></paramdef> |
| <paramdef><link xlink:href="scalarDataTypes.html">size_t</link><parameter>cb_args</parameter></paramdef> |
| <paramdef><link xlink:href="scalarDataTypes.html">cl_uint</link><parameter>num_mem_objects</parameter></paramdef> |
| <paramdef>const <link xlink:href="abstractDataTypes.html">cl_mem</link><parameter>*mem_list</parameter></paramdef> |
| <paramdef>const <link xlink:href="scalarDataTypes.html">void</link><parameter>**args_mem_loc</parameter></paramdef> |
| <paramdef><link xlink:href="scalarDataTypes.html">cl_uint</link><parameter>num_events_in_wait_list</parameter></paramdef> |
| <paramdef>const <link xlink:href="abstractDataTypes.html">cl_event</link><parameter>*event_wait_list</parameter></paramdef> |
| <paramdef><link xlink:href="abstractDataTypes.html">cl_event</link><parameter>*event</parameter></paramdef> |
| |
| </funcprototype> |
| </funcsynopsis> |
| </refsynopsisdiv> |
| |
| |
| <!-- ================================ PARAMETERS --> |
| |
| |
| <refsect1 id="parameters"> |
| <title>Parameters</title> |
| <variablelist> |
| |
| <varlistentry> |
| <term> |
| <varname> <!-- parameter name --> |
| command_queue |
| </varname> |
| </term> |
| |
| <listitem> |
| <para> <!-- parameter description --> |
| A valid command-queue. A native user function can only be executed on a |
| command-queue created on a device that has CL_EXEC_NATIVE_KERNEL capability set in |
| CL_DEVICE_EXECUTION_CAPABILITIES as specified in the table of OpenCL Device Queries for <citerefentry><refentrytitle>clGetDeviceInfo</refentrytitle></citerefentry>. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term> |
| <varname> <!-- parameter name --> |
| user_func |
| </varname> |
| </term> |
| |
| <listitem> |
| <para> <!-- parameter description --> |
| A pointer to a host-callable user function. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| |
| <varlistentry> |
| <term> |
| <varname> <!-- parameter name --> |
| args |
| </varname> |
| </term> |
| |
| <listitem> |
| <para> <!-- parameter description --> |
| A pointer to the args list that <varname>user_func</varname> should be called with. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term> |
| <varname> <!-- parameter name --> |
| cb_args |
| </varname> |
| </term> |
| <listitem> |
| <para> <!-- parameter description --> |
| The size in bytes of the args list that <varname>args</varname> points to. |
| </para> |
| <para> |
| The data pointed to by <varname>args</varname> and <varname>cb_args</varname> bytes in size will be copied and a pointer to this copied region will be passed to <varname>user_func</varname>. The copy needs to be done because the memory objects (<constant>cl_mem</constant> values) that <varname>args</varname> may contain need to be modified and replaced by appropriate pointers to global memory. When <function>clEnqueueNativeKernel</function> returns, the memory region pointed to by <varname>args</varname> can be reused by the application. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| |
| <varlistentry> |
| <term> |
| <varname> <!-- parameter name --> |
| num_mem_objects |
| </varname> |
| </term> |
| |
| <listitem> |
| <para> <!-- parameter description --> |
| The number of buffer objects that are passed in <varname>args</varname>. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| |
| <varlistentry> |
| <term> |
| <varname> <!-- parameter name --> |
| mem_list |
| </varname> |
| </term> |
| |
| <listitem> |
| <para> <!-- parameter description --> |
| A list of valid buffer objects, if <varname>num_mem_objects</varname> is greater than 0. The buffer object values |
| specified in <varname>mem_list</varname> are memory object handles (<constant>cl_mem</constant> values) returned by <citerefentry><refentrytitle>clCreateBuffer</refentrytitle></citerefentry> or NULL. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| |
| <varlistentry> |
| <term> |
| <varname> <!-- parameter name --> |
| args_mem_loc |
| </varname> |
| </term> |
| |
| <listitem> |
| <para> <!-- parameter description --> |
| A pointer to appropriate locations that <varname>args</varname> points to where memory object handles (<constant>cl_mem</constant> values) are stored. Before the user function is executed, the memory object handles are replaced by pointers to global memory. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| |
| <!-- ================================ PARAMETER (NO TABLE) --> |
| <!-- Use this if the parameter information does not require a table. --> |
| |
| <varlistentry> |
| <term> |
| <varname> <!-- parameter name --> |
| event_wait_list |
| </varname> and |
| <varname> <!-- parameter name --> |
| num_events_in_wait_list |
| </varname> |
| </term> |
| |
| <listitem> |
| <para> <!-- parameter description --> |
| Specify events that need to complete before this |
| particular command can be executed. If <varname>event_wait_list</varname> is NULL, then this particular command does not wait on any event to complete. If <varname>event_wait_list</varname> is NULL, <varname>num_events_in_wait_list</varname> |
| must be 0. If <varname>event_wait_list</varname> is not NULL, the list of events pointed to by <varname>event_wait_list</varname> must be valid and <varname>num_events_in_wait_list</varname> must be greater than 0. The events specified in |
| <varname>event_wait_list</varname> act as synchronization points. The context associated with events in <varname>event_wait_list</varname> and <varname>command_queue</varname> must be the same. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| |
| <varlistentry> |
| <term> |
| <varname> <!-- parameter name --> |
| event |
| </varname> |
| </term> |
| |
| <listitem> |
| <para> <!-- parameter description --> |
| Returns an event object that identifies this particular kernel execution instance. Event objects are unique and can be used to identify a particular kernel execution instance later on. If <varname>event</varname> is NULL, no event will be created for this kernel execution instance and therefore it will not be possible for the application to query or queue a wait for this particular kernel execution instance. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| |
| |
| </variablelist> |
| </refsect1> |
| |
| |
| <!-- ================================ NOTES --> |
| |
| |
| <refsect1 id="notes"><title>Notes</title> |
| <para> |
| The data pointed to by <varname>args</varname> and <varname>cb_args</varname> bytes in size will be copied and a pointer to this copied region will be passed to <varname>user_func</varname>. The copy needs to be done because the memory objects |
| (<constant>cl_mem</constant> values) that <varname>args</varname> may contain need to be modified and replaced by appropriate pointers to global memory. When <function>clEnqueueNativeKernel</function> returns, the memory region pointed to by <varname>args</varname> can be reused by the application. |
| |
| </para> |
| </refsect1> |
| |
| |
| <!-- ================================ ERRORS --> |
| |
| |
| <refsect1 id="errors"><title>Errors</title> |
| <para> |
| Returns <errorname>CL_SUCCESS</errorname> if the user function execution instance was |
| successfully queued, or one of the errors below: |
| </para> |
| |
| <itemizedlist mark="disc"> |
| <listitem> |
| <errorname>CL_INVALID_COMMAND_QUEUE</errorname> if <varname>command_queue</varname> is not a valid command-queue. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_CONTEXT</errorname> if context associated with <varname>command_queue</varname> and events in <varname>event-wait_list</varname> are not the same. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_VALUE</errorname> if <varname>user_func</varname> is NULL. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_VALUE</errorname> if <varname>args</varname> is a NULL value and <varname>cb_args</varname> is greater than 0, or if <varname>args</varname> is a NULL |
| value and <varname>num_mem_objects</varname> is greater than 0. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_VALUE</errorname> if <varname>args</varname> is not NULL and <varname>cb_args</varname> is 0. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_VALUE</errorname> if <varname>num_mem_objects</varname> is greater than 0 and <varname>mem_list</varname> or <varname>args_mem_loc</varname> are NULL. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_VALUE</errorname> if <varname>num_mem_objects</varname> = 0 and <varname>mem_list</varname> or <varname>args_mem_loc</varname> are not NULL. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_OPERATION</errorname> if <varname>device</varname> cannot execute the native kernel. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_MEM_OBJECT</errorname> if one or more memory objects specified in <varname>mem_list</varname> are not valid or are not buffer objects. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_OUT_OF_RESOURCES</errorname> if there is a failure to queue the execution instance of <varname>kernel</varname> on the command-queue because of insufficient resources needed to execute the kernel. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_MEM_OBJECT_ALLOCATION_FAILURE</errorname> if there is a failure to allocate memory for data store associated with buffer objects specified as arguments to <varname>kernel</varname>. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_EVENT_WAIT_LIST</errorname> if <varname>event_wait_list</varname> is NULL and <varname>num_events_in_wait_list</varname> is greater than 0, or <varname>event_wait_list</varname> is not NULL and |
| <varname>num_events_in_wait_list</varname> is 0, or if event objects in <varname>event_wait_list</varname> are not valid events. |
| </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="clEnqueueNativeKernel">OpenCL Specification</olink> |
| </para> |
| </refsect1> |
| |
| |
| <!-- ================================ ALSO SEE --> |
| |
| <refsect1 id="seealso"><title>Also see</title> |
| <para> |
| <citerefentry><refentrytitle>clEnqueueNDRangeKernel</refentrytitle></citerefentry>, |
| <citerefentry><refentrytitle>clEnqueueNativeKernel</refentrytitle></citerefentry>, |
| <citerefentry><refentrytitle>clCreateCommandQueue</refentrytitle></citerefentry>, |
| <citerefentry><refentrytitle>clCreateBuffer</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> |
| |
| </refentry> |
| |