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| <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN" |
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| <refentry> |
| <refentryinfo> |
| <keywordset> |
| <keyword>clEnqueueTask</keyword> |
| </keywordset> |
| </refentryinfo> |
| |
| <refmeta> |
| <refentrytitle>clEnqueueTask</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="clEnqueueTask"> |
| <refname>clEnqueueTask</refname> |
| |
| <refpurpose> |
| Enqueues a command to execute a kernel on a device. |
| </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> |
| clEnqueueTask |
| </function> |
| </funcdef> |
| <paramdef> |
| <link xlink:href="abstractDataTypes.html">cl_command_queue</link> |
| <parameter>command_queue</parameter> |
| </paramdef> |
| <paramdef> |
| <link xlink:href="abstractDataTypes.html">cl_kernel</link> |
| <parameter>kernel</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> command_queue </varname> </term> |
| <listitem> |
| <para> |
| <!-- parameter description --> A valid command-queue. The kernel |
| will be queued for execution on the device associated with |
| <varname>command_queue</varname>. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term> <varname> kernel </varname> </term> |
| <listitem> |
| <para> |
| <!-- parameter description --> A valid kernel object. The |
| OpenCL context associated with <varname>kernel</varname> and |
| <varname>command_queue</varname> must be the same. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term> <varname> <!-- parameter name --> |
| num_events_in_wait_list |
| </varname>, |
| <varname> |
| event_wait_list |
| </varname> |
| </term> |
| |
| <listitem> |
| <para> |
| <!-- parameter description --> Sspecify 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. The memory associated with <varname>event_wait_list</varname> |
| can be reused or freed after the function returns. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term> <varname> 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 kernel is executed using a single work-item. |
| </para> |
| |
| <para> |
| <function>clEnqueueTask</function> is equivalent to calling |
| <citerefentry><refentrytitle>clEnqueueNDRangeKernel</refentrytitle></citerefentry> |
| with <varname>work_dim</varname> = 1, <varname>global_work_offset</varname> |
| = NULL, <varname>global_work_size</varname>[0] set to 1, and |
| <varname>local_work_size</varname>[0] set to 1. |
| </para> |
| </refsect1> |
| |
| <!-- ================================ ERRORS --> |
| |
| <refsect1 id="errors"><title>Errors</title> |
| <para> |
| Returns <errorname>CL_SUCCESS</errorname> if the kernel execution was successfully |
| queued, or one of the errors below: |
| </para> |
| |
| <itemizedlist mark="disc"> |
| <listitem> |
| <errorname>CL_INVALID_PROGRAM_EXECUTABLE</errorname> if there is no |
| successfully built program executable available for device associated with |
| <varname>command_queue</varname>. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_COMMAND_QUEUE</errorname> if <varname>command_queue</varname> |
| is not a valid command-queue. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_KERNEL</errorname> if <varname>kernel</varname> is not a |
| valid kernel object. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_CONTEXT</errorname> if context associated with |
| <varname>command_queue</varname> and <varname>kernel</varname> is not the same |
| or if the context associated with <varname>command_queue</varname> and events in |
| <varname>event_wait_list</varname> are not the same. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_KERNEL_ARGS</errorname> if the kernel argument values have |
| not been specified. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_WORK_GROUP_SIZE</errorname> if a work-group size is |
| specified for <varname>kernel</varname> using the <constant><citerefentry |
| href="functionQualifiers"><refentrytitle>__attribute__</refentrytitle></citerefentry> |
| ((reqd_work_group_size(X, Y, Z)))</constant> qualifier in program source and is |
| not (<constant>1</constant>, <constant>1</constant>, <constant>1</constant>). |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_MISALIGNED_SUB_BUFFER_OFFSET</errorname> if a sub-buffer object |
| is specified as the value for an argument that is a buffer object and the |
| <varname>offset</varname> specified when the sub-buffer object is created is not |
| aligned to <constant>CL_DEVICE_MEM_BASE_ADDR_ALIGN</constant> value for device |
| associated with <varname>queue</varname>. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_IMAGE_SIZE</errorname> if an image object is specified |
| as an argument value and the image dimensions (image width, height, specified |
| or compute row and/or slice pitch) are not supported by device associated with |
| <varname>queue</varname>. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_IMAGE_FORMAT</errorname> if an image object is specified |
| as an argument value and the image format (image channel order and data type) |
| is not supported by device associated with <varname>queue</varname>. |
| </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 image or 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> > 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_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="clEnqueueTask">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> |
| </para> |
| </refsect1> |
| |
| <!-- ============================== COPYRIGHT --> |
| <!-- Content included from copyright.inc.xsl --> |
| |
| <refsect3 id="Copyright"><title></title> |
| <imageobject> |
| <imagedata fileref="KhronosLogo.jpg" format="jpg" /> |
| </imageobject> |
| <para /> |
| </refsect3> |
| |
| <!-- 20-Oct-2011 --> |
| </refentry> |
