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| <title>clEnqueueNativeKernel</title> |
| <meta name="generator" content="DocBook XSL Stylesheets V1.79.1" /> |
| <meta name="keywords" content="clEnqueueNativeKernel" /> |
| </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="clEnqueueNativeKernel"></a> |
| <h1>clEnqueueNativeKernel</h1> |
| <p> |
| Enqueues a command to execute a native C/C++ function not compiled using the OpenCL compiler. |
| </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">cl_int</a> |
| <strong class="fsfunc"> |
| clEnqueueNativeKernel |
| </strong> |
| (</code> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_command_queue</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">command_queue</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">void</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">(CL_CALLBACK *user_func)(void *)</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">void</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*args</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">size_t</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">cb_args</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">cl_uint</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">num_mem_objects</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td>const <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_mem</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*mem_list</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td>const <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">void</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">**args_mem_loc</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">cl_uint</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">num_events_in_wait_list</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td>const <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_event</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*event_wait_list</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_event</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*event</var><code>)</code></td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="parameters"></a> |
| <h2>Parameters</h2> |
| <div class="variablelist"> |
| <dl class="variablelist"> |
| <dt> |
| <span class="term"> <code class="varname"> command_queue </code> </span> |
| </dt> |
| <dd> |
| <p> |
| A valid host command-queue. A native user |
| function can only be executed on a command-queue created on a device |
| that has <code class="constant">CL_EXEC_NATIVE_KERNEL</code> capability |
| set in <code class="constant">CL_DEVICE_EXECUTION_CAPABILITIES</code> |
| as specified in the table of OpenCL Device Queries for |
| <a class="citerefentry" href="clGetDeviceInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetDeviceInfo</span></span></a>. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> <code class="varname"> user_func </code> </span> |
| </dt> |
| <dd> |
| <p> |
| A pointer to a host-callable user function. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> <code class="varname"> args </code> </span> |
| </dt> |
| <dd> |
| <p> |
| A pointer to the args list that <code class="varname">user_func</code> |
| should be called with. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> <code class="varname"> cb_args </code> </span> |
| </dt> |
| <dd> |
| <p> |
| The size in bytes of the args list that <code class="varname">args</code> points to. |
| </p> |
| <p> |
| The data pointed to by <code class="varname">args</code> and <code class="varname">cb_args</code> |
| bytes in size will be copied and a pointer to this copied region will be |
| passed to <code class="varname">user_func</code>. The copy needs to be done because |
| the memory objects (<span class="type">cl_mem</span> values) that <code class="varname">args</code> |
| may contain need to be modified and replaced by appropriate pointers to |
| global memory. When <code class="function">clEnqueueNativeKernel</code> returns, |
| the memory region pointed to by <code class="varname">args</code> can be reused by |
| the application. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> <code class="varname"> num_mem_objects </code> </span> |
| </dt> |
| <dd> |
| <p> |
| The number of buffer objects that are passed in <code class="varname">args</code>. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> <code class="varname"> mem_list </code> </span> |
| </dt> |
| <dd> |
| <p> |
| A list of valid buffer objects, |
| if <code class="varname">num_mem_objects</code> > 0. The buffer |
| object values specified in <code class="varname">mem_list</code> are |
| memory object handles (<span class="type">cl_mem</span> values) returned by |
| <a class="citerefentry" href="clCreateBuffer.html"><span class="citerefentry"><span class="refentrytitle">clCreateBuffer</span></span></a> |
| or NULL. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> <code class="varname"> args_mem_loc </code> </span> |
| </dt> |
| <dd> |
| <p> |
| A pointer to appropriate locations |
| that <code class="varname">args</code> points to where memory object handles |
| (<span class="type">cl_mem</span> values) are stored. Before the user function is |
| executed, the memory object handles are replaced by pointers to global |
| memory. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname">event_wait_list</code> and |
| <code class="varname">num_events_in_wait_list</code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| Specify events that need |
| to complete before this particular command can be executed. If |
| <code class="varname">event_wait_list</code> is NULL, then this particular command does |
| not wait on any event to complete. If <code class="varname">event_wait_list</code> |
| is NULL, <code class="varname">num_events_in_wait_list</code> must be 0. If |
| <code class="varname">event_wait_list</code> is not NULL, the list of events |
| pointed to by <code class="varname">event_wait_list</code> must be valid |
| and <code class="varname">num_events_in_wait_list</code> must be greater |
| than 0. The events specified in <code class="varname">event_wait_list</code> |
| act as synchronization points. The context associated with events in |
| <code class="varname">event_wait_list</code> and <code class="varname">command_queue</code> must |
| be the same. The memory associated with <code class="varname">event_wait_list</code> |
| can be reused or freed after the function returns. |
| </p> |
| </dd> |
| </dl> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="notes"></a> |
| <h2>Notes</h2> |
| <p> |
| The total number of read-only images specified as arguments to a kernel cannot exceed |
| <code class="constant">CL_DEVICE_MAX_READ_IMAGE_ARGS</code>. Each image array argument to |
| a kernel declared with the <code class="code">read_only</code> qualifier counts as one image. |
| </p> |
| <p> |
| The total number of write-only images specified as arguments to a kernel cannot exceed |
| <code class="constant">CL_DEVICE_MAX_WRITE_IMAGE_ARGS</code>. Each image array argument to |
| a kernel declared with the <code class="code">write_only</code> qualifier counts as one image. |
| </p> |
| <p> |
| The total number of read-write images specified |
| as arguments to a kernel cannot exceed |
| <code class="constant">CL_DEVICE_MAX_READ_WRITE_IMAGE_ARGS</code>. |
| Each image array argument to a kernel |
| declared with the <code class="code">read_write</code> qualifier |
| counts as one image. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="errors"></a> |
| <h2>Errors</h2> |
| <p> |
| Returns <span class="errorname">CL_SUCCESS</span> if the user function execution instance |
| was successfully queued. Otherwise, it returns one of the following errors: |
| </p> |
| <div class="itemizedlist"> |
| <ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_COMMAND_QUEUE</span> if <code class="varname">command_queue</code> |
| is not a valid host command-queue. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_CONTEXT</span> if context associated with |
| <code class="varname">command_queue</code> and events in <code class="varname">event_wait_list</code> |
| are not the same. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if <code class="varname">user_func</code> is NULL. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if <code class="varname">args</code> is a NULL |
| value and <code class="varname">cb_args</code> > 0, or if <code class="varname">args</code> is a |
| NULL value and <code class="varname">num_mem_objects</code> > 0. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if <code class="varname">args</code> is not NULL |
| and <code class="varname">cb_args</code> is 0. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if <code class="varname">num_mem_objects</code> |
| > 0 and <code class="varname">mem_list</code> or <code class="varname">args_mem_loc</code> are NULL. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if <code class="varname">num_mem_objects</code> = |
| 0 and <code class="varname">mem_list</code> or <code class="varname">args_mem_loc</code> are not NULL. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_OPERATION</span> if the device associated with |
| <code class="varname">command_queue</code> cannot execute the native kernel. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_MEM_OBJECT</span> if one or more memory objects |
| specified in <code class="varname">mem_list</code> are not valid or are not buffer objects. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_OUT_OF_RESOURCES</span> if there is a failure to queue the |
| execution instance of <code class="varname">kernel</code> on the command-queue because of |
| insufficient resources needed to execute the kernel. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_MEM_OBJECT_ALLOCATION_FAILURE</span> if there is a failure |
| to allocate memory for data store associated with buffer objects specified as |
| arguments to <code class="varname">kernel</code>. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_EVENT_WAIT_LIST</span> |
| if <code class="varname">event_wait_list</code> is NULL and |
| <code class="varname">num_events_in_wait_list</code> > 0, |
| or <code class="varname">event_wait_list</code> is not NULL and |
| <code class="varname">num_events_in_wait_list</code> is 0, or if event objects in |
| <code class="varname">event_wait_list</code> are not valid events. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_OPERATION</span> |
| if SVM pointers are passed as arguments to a kernel and the |
| device does not support SVM or if system |
| pointers are passed as arguments to a kernel |
| and/or stored inside SVM allocations passed |
| as kernel arguments and the device does not |
| support fine grain system SVM allocations. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_OUT_OF_RESOURCES</span> if there is a failure to allocate |
| resources required by the OpenCL implementation on the device. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_OUT_OF_HOST_MEMORY</span> if there is a failure to allocate |
| resources required by the OpenCL implementation on the host. |
| </li> |
| </ul> |
| </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.pdf#namedest=clEnqueueNativeKernel" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="clEnqueueNDRangeKernel.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueNDRangeKernel</span></span></a>, |
| <a class="citerefentry" href="clEnqueueNativeKernel.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueNativeKernel</span></span></a>, |
| <a class="citerefentry" href="clCreateCommandQueueWithProperties.html"><span class="citerefentry"><span class="refentrytitle">clCreateCommandQueueWithProperties</span></span></a>, |
| <a class="citerefentry" href="clCreateBuffer.html"><span class="citerefentry"><span class="refentrytitle">clCreateBuffer</span></span></a>, |
| <a class="citerefentry" href="clGetDeviceInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetDeviceInfo</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> |
