| <?xml version="1.0" encoding="UTF-8"?> |
| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd"> |
| <!-- saved from url=(0013)about:internet --> |
| <?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" xmlns:xlink="http://www.w3.org/1999/xlink" pref:renderer="mathplayer-dl"> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> |
| <style xmlns="" type="text/css"> |
| /* This style sets a margin around the entire page */ |
| html, body { |
| margin: 10px; |
| } |
| |
| p { |
| font: normal 16px verdana, sans-serif; |
| margin: 0; |
| padding-bottom:12px; |
| } |
| |
| h1 { |
| font: bold 25px verdana, sans-serif; |
| margin-top: 0; |
| margin-bottom: 3px; |
| padding-top: 0; |
| padding-bottom: 0; |
| } |
| |
| h2 { |
| font: bold 19px verdana, sans-serif; |
| margin-top: 28px; |
| margin-bottom: 3px; |
| padding-top: 0; |
| padding-bottom: 0; |
| } |
| |
| h3 { |
| font: bold 19px verdana, sans-serif !important; |
| margin-top: 28px; |
| margin-bottom: 3px; |
| padding-top: 0; |
| padding-bottom: 0; |
| } |
| |
| li { |
| font: normal 16px verdana, sans-serif; |
| margin-top: 0; |
| margin-bottom: 18px; |
| padding-top: 0; |
| padding-bottom: 0; |
| } |
| |
| .pdparam { |
| font: italic 16px verdana, sans-serif; |
| } |
| |
| .term { |
| font: italic 16px verdana, sans-serif; |
| font-weight: normal; |
| } |
| |
| .type { |
| font: normal 16px verdana, sans-serif !important; |
| } |
| |
| .parameter { |
| font-style: italic; |
| } |
| |
| a:link, a:visited { |
| color: blue; |
| text-decoration: none; |
| font: normal 16px; |
| } |
| |
| a:hover { |
| background-color: #FFFF99; |
| font: normal 16px; |
| } |
| |
| div.funcsynopsis { |
| text-align: left; |
| background-color: #e6e6e6; |
| font: normal 16px verdana, sans-serif; |
| padding-top: 10px; |
| padding-bottom: 10px; |
| } |
| |
| div.funcsynopsis table { |
| border-collapse: separate; |
| font: normal 16px verdana, sans-serif; |
| } |
| |
| div.funcsynopsis td { |
| background-color: #e6e6e6; |
| border: 0 solid #000; |
| padding: 1px; |
| font: normal 16px verdana, sans-serif; |
| } |
| |
| div.refsect1 { |
| font-family: verdana, sans-serif; |
| font-size: 16px; |
| } |
| |
| code.constant { |
| font: normal 16px courier new, monospace !important; |
| } |
| |
| span.errorname { |
| font: normal 16px verdana, sans-serif !important; |
| } |
| |
| code.function { |
| font: bold 16px verdana, sans-serif !important; |
| } |
| |
| b.fsfunc { |
| font: bold 16px verdana, sans-serif !important; |
| } |
| |
| code.varname { |
| font: italic 16px verdana, sans-serif; |
| } |
| |
| code.replaceable { |
| font: italic 16px courier new, monospace; |
| } |
| |
| code.funcdef { |
| font: normal 16px verdana, sans-serif !important; |
| } |
| |
| .citerefentry { |
| font: normal 16px verdana, sans-serif !important; |
| } |
| |
| .parameter { |
| font-style: italic; |
| } |
| |
| code.fsfunc { |
| font: normal 16px verdana, sans-serif !important; |
| } |
| |
| /* PARAMETER: This style controls spacing between the terms in Parameter section */ |
| dt { |
| margin-top: 15px; |
| } |
| |
| /* TABLES: These styles apply to all tables OTHER than the Synopsis and Example tables */ |
| div.refsect1 table { |
| width: 100%; |
| margin-top: 10px; |
| background-color: #FFF; |
| border-collapse: collapse; |
| border-color: #000; |
| border-width: 1px; |
| font: normal 16px verdana, sans-serif; |
| } |
| |
| div.refsect1 th { |
| border-collapse: collapse; |
| border-color: #000; |
| border-width: 1px; |
| font: bold 16px verdana, sans-serif; |
| } |
| |
| div.refsect1 td { |
| background-color: #FFF; |
| padding: 5px; |
| vertical-align: text-top; |
| border-collapse: collapse; |
| border-color: #000; |
| border-width: 1px; |
| font: normal 16px verdana, sans-serif; |
| } |
| |
| div.refsect1 p{ |
| font: normal 16px verdana, sans-serif; |
| margin-top: 8px; |
| margin-bottom: 8px; |
| padding-top: 0; |
| padding-bottom: 0; |
| } |
| |
| |
| /* EXAMPLE: These styles apply only to the Example section */ |
| div.refsect2 { |
| font: normal 16px courier new, monospace !important; |
| } |
| |
| div.refsect2 table { |
| margin-top: 0; |
| background-color: #e6e6e6; |
| width: 100%; |
| border: 0 solid #000; |
| padding: 2px; |
| font: normal 16px courier new, monospace !important; |
| } |
| |
| div.refsect2 td { |
| background-color: #e6e6e6; |
| font: normal 16px courier new, monospace !important; |
| white-space:pre; |
| } |
| |
| /* COPYRIGHT: This style formats the text of the copyright statement at the bottom of the page */ |
| div.refsect3 { |
| font: normal 11px verdana, sans-serif; |
| margin-top: 50px; |
| margin-bottom: 20px; |
| padding-top: 0; |
| padding-bottom: 0; |
| } |
| |
| </style> |
| <title>set_user_event_status</title> |
| <meta name="generator" content="DocBook XSL Stylesheets V1.79.1" /> |
| <meta name="keywords" content="set_user_event_status" /> |
| </head> |
| <body> |
| <div class="refentry"> |
| <a id="id-1"></a> |
| <div class="titlepage"></div> |
| <div xmlns="" class="refnamediv"> |
| <a xmlns="http://www.w3.org/1999/xhtml" id="set_user_event_status"></a> |
| <h1>set_user_event_status</h1> |
| <p> |
| Sets the execution status of a user event. |
| </p> |
| </div> |
| <div class="refsynopsisdiv"> |
| <h2></h2> |
| <div class="funcsynopsis"> |
| <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"> |
| <tr valign="bottom"> |
| <td> |
| <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef"> |
| <a class="link" href="scalarDataTypes.html" target="pagedisplay">void</a> |
| <strong class="fsfunc"> |
| set_user_event_status |
| </strong> |
| (</code> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="otherDataTypes.html" target="pagedisplay">clk_event_t</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">event</var> |
| , </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">int</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">status</var> |
| <code>)</code></td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="description"></a> |
| <h2>Description</h2> |
| <p> |
| Sets the execution status of a user event. <code class="varname">event</code> must |
| be a user-event. <code class="varname">status</code> can be either |
| <code class="constant">CL_COMPLETE</code> or a negative integer value indicating an error. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="notes"></a> |
| <h2>Notes</h2> |
| <h4><a id="id-1.6.2"></a>General information about event functions</h4> |
| <p> |
| Events can be used to identify commands enqueued to a command-queue from the host. |
| These events created by the OpenCL runtime can only be used on the host i.e. as events passed |
| in <code class="varname">event_wait_list</code> argument to various clEnqueue APIs or runtime APIs that take |
| events as arguments such as <a class="citerefentry" href="clRetainEvent.html"><span class="citerefentry"><span class="refentrytitle">clRetainEvent</span></span></a>, |
| <a class="citerefentry" href="clReleaseEvent.html"><span class="citerefentry"><span class="refentrytitle">clReleaseEvent</span></span></a>, |
| <a class="citerefentry" href="clGetEventProfilingInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetEventProfilingInfo</span></span></a>. |
| </p> |
| <p> |
| Similarly, events can be used to identify commands enqueued to a device queue (from a kernel). |
| These event objects cannot be passed to the host or used by OpenCL runtime APIs such as the |
| clEnqueueAPIs or runtime APIs that take event arguments. |
| </p> |
| <p> |
| <a class="citerefentry" href="clRetainEvent.html"><span class="citerefentry"><span class="refentrytitle">clRetainEvent</span></span></a> and |
| <a class="citerefentry" href="clReleaseEvent.html"><span class="citerefentry"><span class="refentrytitle">clReleaseEvent</span></span></a> will return |
| <span class="errorname">CL_INVALID_OPERATION</span> if <code class="varname">event</code> |
| specified is an event that refers to any kernel enqueued to a device queue using |
| <a class="citerefentry" href="enqueue_kernel.html"><span class="citerefentry"><span class="refentrytitle">enqueue_kernel</span></span></a> or |
| <a class="citerefentry" href="enqueue_marker.html"><span class="citerefentry"><span class="refentrytitle">enqueue_marker</span></span></a> |
| or is a user event created by |
| <a class="citerefentry" href="create_user_event.html"><span class="citerefentry"><span class="refentrytitle">create_user_event</span></span></a>. |
| </p> |
| <p> |
| Similarly, |
| <a class="citerefentry" href="clSetUserEventStatus.html"><span class="citerefentry"><span class="refentrytitle">clSetUserEventStatus</span></span></a> |
| can only be used to set the execution status of events created using |
| <a class="citerefentry" href="clCreateUserEvent.html"><span class="citerefentry"><span class="refentrytitle">clCreateUserEvent</span></span></a>. |
| User events created on the device can be set using |
| <a class="citerefentry" href="set_user_event_status.html"><span class="citerefentry"><span class="refentrytitle">set_user_event_status</span></span></a> built-in function. |
| </p> |
| <div class="refsect2"> |
| <a id="example1"></a> |
| <h3> |
| Example |
| </h3> |
| <p> |
| The example below shows how events can be used with |
| kernels enqueued to multiple device queues. |
| </p> |
| <div class="informaltable"> |
| <table class="informaltable" border="0"> |
| <colgroup> |
| <col align="left" class="col1" /> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td align="left"> |
| extern void barA_kernel(...); |
| extern void barB_kernel(...); |
| |
| kernel void |
| foo(queue_t q0, queue q1, ...) |
| { |
| ... |
| clk_event_t evt0; |
| |
| // enqueue kernel to queue q0 |
| enqueue_kernel(q0, |
| CLK_ENQUEUE_FLAGS_NO_WAIT, |
| ndrange_A, |
| 0, NULL, &evt0, |
| ^{barA_kernel(...);} ); |
| |
| // enqueue kernel to queue q1 |
| enqueue_kernel(q1, |
| CLK_ENQUEUE_FLAGS_NO_WAIT, |
| ndrange_B, |
| 1, &evt0, NULL, |
| ^{barB_kernel(...);} ); |
| |
| // release event evt0. This will get released |
| // after barA_kernel enqueued in queue q0 has finished |
| // execution and barB_kernel enqueued in queue q1 and |
| // waits for evt0 is submitted for execution i.e. wait |
| // for evt0 is satisfied. |
| release_event(evt0); |
| } |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <p> |
| The example below shows how the marker command can |
| be used with kernels enqueued to a device queue. |
| </p> |
| <div class="informaltable"> |
| <table class="informaltable" border="0"> |
| <colgroup> |
| <col align="left" class="col1" /> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td align="left"> |
| kernel void |
| foo(queue_t q, ...) |
| { |
| ... |
| clk_event_t marker_event; |
| clk_event_t events[2]; |
| |
| enqueue_kernel(q, |
| CLK_ENQUEUE_FLAGS_NO_WAIT, |
| ndrange, |
| 0, NULL, &events[0], |
| ^{barA_kernel(...);} ); |
| |
| enqueue_kernel(q, |
| CLK_ENQUEUE_FLAGS_NO_WAIT, |
| ndrange, |
| 0, NULL, &events[1], |
| ^{barB_kernel(...);} ); |
| |
| // barA_kernel and barB_kernel can be executed |
| // out of order. we need to wait for both these |
| // kernels to finish execution before barC_kernel |
| // starts execution so we enqueue a marker command and |
| // then enqueue barC_kernel that waits on the event |
| // associated with the marker. |
| |
| enqueue_marker(q, 2, events, &marker_event); |
| |
| enqueue_kernel(q, |
| CLK_ENQUEUE_FLAGS_NO_WAIT, |
| 1, &marker_event, NULL, |
| ^{barC_kernel(...);} ); |
| |
| release_event(events[0]; |
| release_event(events[1]); |
| release_event(marker_event); |
| } |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="specification"></a> |
| <h2>Specification</h2> |
| <p> |
| <img src="pdficon_small1.gif" /> |
| |
| <a href="https://www.khronos.org/registry/cl/specs/opencl-2.1-openclc.pdf#page=171" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="eventFunctions.html"><span class="citerefentry"><span class="refentrytitle">Event Functions</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 © 2007-2015 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. |
| </div> |
| </div> |
| </body> |
| </html> |
