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| <title>clGetKernelInfo</title> |
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| <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="clGetKernelInfo"></a> |
| <h1> |
| clGetKernelInfo |
| </h1> |
| <p> |
| Returns information about the kernel object. |
| </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">clGetKernelInfo</strong> |
| (</code> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_kernel</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">kernel</var> |
| , </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="#cl_kernel_info">cl_kernel_info</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">param_name</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">param_value_size</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">*param_value</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">*param_value_size_ret</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"> kernel </code> </span> |
| </dt> |
| <dd> |
| <p> |
| Specifies the kernel object being queried. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> <code class="varname"> param_name </code> </span> |
| </dt> |
| <dd> |
| <p> |
| Specifies the information to query. The list of supported |
| <code class="varname">param_name</code> types and the information returned in |
| <code class="varname">param_value</code> by <code class="function">clGetKernelInfo</code> |
| is described in the table below. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> <code class="varname"> param_value </code> </span> |
| </dt> |
| <dd> |
| <p> |
| A pointer to memory where the appropriate result being queried is returned. |
| If <code class="varname">param_value</code> is NULL, it is ignored. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> <code class="varname"> param_value_size </code> </span> |
| </dt> |
| <dd> |
| <p> |
| Used to specify the size in bytes of memory pointed to |
| by <code class="varname">param_value</code>. |
| This size must be ≥ size of return |
| type as described in the table below. |
| </p> |
| <div class="informaltable"> |
| <a id="cl_kernel_info"></a> |
| <table class="informaltable" border="1"> |
| <colgroup> |
| <col align="left" class="col1" /> |
| <col align="left" class="col2" /> |
| <col align="left" class="col3" /> |
| </colgroup> |
| <thead> |
| <tr> |
| <th align="left">cl_kernel_info</th> |
| <th align="left">Return Type</th> |
| <th align="left">Info. returned in <code class="varname">param_value</code></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_KERNEL_FUNCTION_NAME</code> |
| </td> |
| <td align="left">char[]</td> |
| <td align="left"> |
| Return the kernel function name. |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_KERNEL_NUM_ARGS</code> |
| </td> |
| <td align="left">cl_uint</td> |
| <td align="left"> |
| Return the number of arguments to <code class="varname">kernel</code>. |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_KERNEL_REFERENCE_COUNT</code> |
| </td> |
| <td align="left">cl_uint</td> |
| <td align="left"> |
| <p> |
| Return the <code class="varname">kernel</code> reference count. |
| </p> |
| <p> |
| 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. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_KERNEL_CONTEXT</code> |
| </td> |
| <td align="left">cl_context</td> |
| <td align="left"> |
| Return the context associated with <code class="varname">kernel</code>. |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_KERNEL_PROGRAM</code> |
| </td> |
| <td align="left">cl_program</td> |
| <td align="left"> |
| Return the program object associated with <code class="varname">kernel</code>. |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_KERNEL_ATTRIBUTES</code> |
| </td> |
| <td align="left">char[]</td> |
| <td align="left"> |
| <p> |
| Returns any attributes specified using the |
| __<a class="citerefentry" href="attribute.html"><span class="citerefentry"><span class="refentrytitle">attribute</span></span></a>__ |
| qualifier with the kernel function declaration in |
| the program source. These attributes include those on the |
| __<a class="citerefentry" href="attribute.html"><span class="citerefentry"><span class="refentrytitle">attribute</span></span></a>__ |
| page and other attributes supported by an implementation. |
| </p> |
| |
| <p> |
| Attributes are returned as they were declared inside |
| __<a class="citerefentry" href="attribute.html"><span class="citerefentry"><span class="refentrytitle">attribute</span></span></a>__((...)), |
| with any surrounding whitespace and embedded newlines |
| removed. When multiple attributes are present, they are |
| returned as a single, space delimited string. |
| </p> |
| |
| <p> |
| For kernels not created from OpenCL |
| C source and the |
| <a class="citerefentry" href="clCreateProgramWithSource.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithSource</span></span></a> |
| API call the string returned from this |
| query will be empty. |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </dd> |
| <dt> |
| <span class="term"> <code class="varname"> param_value_size_ret </code> </span> |
| </dt> |
| <dd> |
| <p> |
| the actual size in bytes of data copied to <code class="varname">param_value</code>. |
| If <code class="varname">param_value_size_ret</code> is NULL, it is ignored. |
| </p> |
| </dd> |
| </dl> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="errors"></a> |
| <h2>Errors</h2> |
| <p> |
| Returns <span class="errorname">CL_SUCCESS</span> if the function is executed |
| successfully. 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_VALUE</span> if <code class="varname">param_name</code> is not |
| valid, or if size in bytes specified by <code class="varname">param_value_size</code> |
| is < size of return type as described in the table above and |
| <code class="varname">param_value</code> is not NULL. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_KERNEL</span> if <code class="varname">kernel</code> |
| is not a valid kernel object. |
| </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#page=231" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="clCreateKernel.html"><span class="citerefentry"><span class="refentrytitle">clCreateKernel</span></span></a>, |
| <a class="citerefentry" href="clCreateKernelsInProgram.html"><span class="citerefentry"><span class="refentrytitle">clCreateKernelsInProgram</span></span></a>, |
| <a class="citerefentry" href="clGetKernelArgInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetKernelArgInfo</span></span></a>, |
| <a class="citerefentry" href="clRetainKernel.html"><span class="citerefentry"><span class="refentrytitle">clRetainKernel</span></span></a>, |
| <a class="citerefentry" href="clReleaseKernel.html"><span class="citerefentry"><span class="refentrytitle">clReleaseKernel</span></span></a>, |
| <a class="citerefentry" href="clSetKernelArg.html"><span class="citerefentry"><span class="refentrytitle">clSetKernelArg</span></span></a>, |
| <a class="citerefentry" href="clGetKernelWorkGroupInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetKernelWorkGroupInfo</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. |
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| 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 |
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