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| <title>clGetProgramInfo</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="clGetProgramInfo"></a> |
| <h1> |
| clGetProgramInfo |
| </h1> |
| <p> |
| Returns information about the program 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">clGetProgramInfo</strong> |
| (</code> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_program</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">program</var>, </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="#cl_program_info">cl_program_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"> program </code> </span> |
| </dt> |
| <dd> |
| <p> |
| Specifies the program 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">clGetProgramInfo</code> |
| is described in the table below. |
| </p> |
| <div class="informaltable"> |
| <a id="cl_program_info"></a> |
| <table class="informaltable" border="1"> |
| <colgroup> |
| <col align="left" class="col1" /> |
| <col align="left" class="col2" /> |
| </colgroup> |
| <thead> |
| <tr> |
| <th align="left">cl_program_info</th> |
| <th align="left">Return Type and Info. returned in <code class="varname">param_value</code></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PROGRAM_REFERENCE_COUNT</code> |
| </td> |
| <td align="left"> |
| Return type: cl_uint |
| |
| <p>Return the <code class="varname">program</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_PROGRAM_CONTEXT</code> |
| </td> |
| <td align="left"> |
| Return type: cl_context |
| |
| <p> |
| Return the context specified when the program object is created |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PROGRAM_NUM_DEVICES</code> |
| </td> |
| <td align="left"> |
| Return type: cl_uint |
| |
| <p> |
| Return the number of devices associated with <code class="varname">program</code>. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PROGRAM_DEVICES</code> |
| </td> |
| <td align="left"> |
| Return type: cl_device_id[] |
| |
| <p> |
| Return the list of devices associated with the program object. This can be |
| the devices associated with context on which the program object has been |
| created or can be a subset of devices that are specified when a progam object |
| is created using |
| <a class="citerefentry" href="clCreateProgramWithBinary.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithBinary</span></span></a>. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PROGRAM_SOURCE</code> |
| </td> |
| <td align="left"> |
| Return type: char[] |
| |
| <p> |
| Return the program source code specified by |
| <a class="citerefentry" href="clCreateProgramWithSource.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithSource</span></span></a>. |
| The source string returned is a |
| concatenation of all source strings specified to |
| <a class="citerefentry" href="clCreateProgramWithSource.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithSource</span></span></a> |
| with a null terminator. The concatenation strips any |
| nulls in the original source strings. |
| </p> |
| |
| <p> |
| If <code class="varname">program</code> is created using |
| <a class="citerefentry" href="clCreateProgramWithBinary.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithBinary</span></span></a>, |
| <a class="citerefentry" href="clCreateProgramWithIL.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithIL</span></span></a>, |
| or |
| <a class="citerefentry" href="clCreateProgramWithBuiltInKernels.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithBuiltInKernels</span></span></a>, |
| a null string or the appropriate program source code is |
| returned depending on whether or not the program source |
| code is stored in the binary. |
| </p> |
| |
| <p> |
| The actual number of characters that represents the |
| program source code including the null terminator is |
| returned in <code class="varname">param_value_size_ret</code>. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PROGRAM_IL</code> |
| </td> |
| <td align="left"> |
| Return type: void * |
| <p> |
| Returns the program IL for programs created with |
| <a class="citerefentry" href="clCreateProgramWithIL.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithIL</span></span></a>. |
| </p> |
| |
| <p> |
| If <code class="varname">program</code> is created with |
| <a class="citerefentry" href="clCreateProgramWithSource.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithSource</span></span></a>, |
| <a class="citerefentry" href="clCreateProgramWithBinary.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithBinary</span></span></a> or |
| <a class="citerefentry" href="clCreateProgramWithBuiltInKernels.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithBuiltInKernels</span></span></a> the |
| memory pointed to by <code class="varname">param_value</code> will be |
| unchanged and <code class="varname">param_value_size_ret</code> will be |
| set to 0. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PROGRAM_BINARY_SIZES</code> |
| </td> |
| <td align="left"> |
| Return type: size_t[] |
| |
| <p> |
| Returns an array that contains the size in bytes of |
| the program binary (could be an executable binary, |
| compiled binary or library binary) for each device |
| associated with <code class="varname">program</code>. The size |
| of the array is the number of devices associated with |
| <code class="varname">program</code>. If a binary is not available |
| for a device(s), a size of zero is returned. |
| </p> |
| |
| <p> |
| If <code class="varname">program</code> is created using |
| <a class="citerefentry" href="clCreateProgramWithBuiltInKernels.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithBuiltInKernels</span></span></a>, |
| the implementation may return zero in any entries of the |
| returned array. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PROGRAM_BINARIES</code> |
| </td> |
| <td align="left"> |
| Return type: unsigned char *[] |
| |
| <p> |
| Return the program binaries (could be an executable |
| binary, compiled binary or library binary) for all |
| devices associated with <code class="varname">program</code>. For |
| each device in <code class="varname">program</code>, the |
| binary returned can be the binary specified for |
| the device when <code class="varname">program</code> is created with |
| <a class="citerefentry" href="clCreateProgramWithBinary.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithBinary</span></span></a> |
| or it can be the executable binary generated by |
| <a class="citerefentry" href="clBuildProgram.html"><span class="citerefentry"><span class="refentrytitle">clBuildProgram</span></span></a> |
| or |
| <a class="citerefentry" href="clLinkProgram.html"><span class="citerefentry"><span class="refentrytitle">clLinkProgram</span></span></a>. |
| If <code class="varname">program</code> is created with |
| <a class="citerefentry" href="clCreateProgramWithSource.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithSource</span></span></a> or |
| <a class="citerefentry" href="clCreateProgramWithIL.html"><span class="citerefentry"><span class="refentrytitle">clCreateProgramWithIL</span></span></a>, |
| the binary returned is the binary generated by |
| <a class="citerefentry" href="clBuildProgram.html"><span class="citerefentry"><span class="refentrytitle">clBuildProgram</span></span></a>, |
| <a class="citerefentry" href="clCompileProgram.html"><span class="citerefentry"><span class="refentrytitle">clCompileProgram</span></span></a>, |
| or |
| <a class="citerefentry" href="clLinkProgram.html"><span class="citerefentry"><span class="refentrytitle">clLinkProgram</span></span></a>. |
| The bits returned can be an implementation-specific |
| intermediate representation (a.k.a. IR) or device specific |
| executable bits or both. The decision on which information |
| is returned in the binary is up to the OpenCL implementation. |
| </p> |
| |
| <p> |
| <code class="varname">param_value</code> points to an array of |
| <code class="code">n</code> pointers allocated by the caller, where |
| <code class="code">n</code> is the number of devices associated with |
| program. The buffer sizes needed to allocate the memory |
| that these <code class="code">n</code> pointers refer to can be queried |
| using the <code class="constant">CL_PROGRAM_BINARY_SIZES</code> |
| query as described in this table. |
| </p> |
| |
| <p> |
| Each entry in this array is used by the implementation as |
| the location in memory where to copy the program binary for |
| a specific device, if there is a binary available. To find |
| out which device the program binary in the array refers to, |
| use the <code class="constant">CL_PROGRAM_DEVICES</code> query to get |
| the list of devices. There is a one-to-one correspondence |
| between the array of <code class="code">n</code> pointers returned |
| by <code class="constant">CL_PROGRAM_BINARIES</code> and array of |
| devices returned by <code class="constant">CL_PROGRAM_DEVICES.</code> |
| </p> |
| |
| <p> |
| If an entry value in the array is NULL, the implementation |
| skips copying the program binary for the specific device |
| identified by the array index. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PROGRAM_NUM_KERNELS</code> |
| </td> |
| <td align="left"> |
| Return type: size_t |
| |
| <p> |
| Returns the number of kernels declared in |
| <code class="varname">program</code> that can be created with |
| <a class="citerefentry" href="clCreateKernel.html"><span class="citerefentry"><span class="refentrytitle">clCreateKernel</span></span></a>. |
| This information is only available after a successful program |
| executable has been built for at least one device in the |
| list of devices associated with <code class="varname">program</code>. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PROGRAM_KERNEL_NAMES</code> |
| </td> |
| <td align="left"> |
| Return type: char[] |
| |
| <p> |
| Returns a semi-colon separated list of kernel names |
| in <code class="varname">program</code> that can be created with |
| <a class="citerefentry" href="clCreateKernel.html"><span class="citerefentry"><span class="refentrytitle">clCreateKernel</span></span></a>. |
| This information is only available after a successful program |
| executable has been built for at least one device in the |
| list of devices associated with <code class="varname">program</code>. |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </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 above. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> <code class="varname"> param_value_size_ret </code> </span> |
| </dt> |
| <dd> |
| <p> |
| Returns 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_PROGRAM</span> if <code class="varname">program</code> is not |
| a valid program object. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_PROGRAM_EXECUTABLE</span> if |
| <code class="varname">param_name</code> is <code class="constant">CL_PROGRAM_NUM_KERNELS</code> or |
| <code class="constant">CL_PROGRAM_KERNEL_NAMES</code> and a successful program executable |
| has not been built for at least one device in the list of devices associated |
| with <code class="varname">program</code>. |
| </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=214" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="clGetProgramBuildInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetProgramBuildInfo</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. |
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