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| <title>cl_khr_terminate_context</title> |
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| <div xmlns="" class="refnamediv"> |
| <a xmlns="http://www.w3.org/1999/xhtml" id="cl_khr_terminate_context"></a> |
| <h1>cl_khr_terminate_context</h1> |
| <p> |
| Extension to allow an API to release a context. |
| </p> |
| </div> |
| <div class="refsect2"> |
| <a id="synopsis"></a> |
| <h3> |
| </h3> |
| <div class="informaltable"> |
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| <td align="left"> |
| #pragma OPENCL EXTENSION cl_khr_terminate_context : enable |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="description"></a> |
| <h2>Description</h2> |
| <p> |
| Today, OpenCL provides an API to release a context. This operation is done only after |
| all queues, memory object, programs and kernels are released, which in turn might wait |
| for all ongoing operations to complete. However, there are cases in which a fast release is |
| required, or release operation cannot be done, as commands are stuck in mid execution. An |
| example of the first case can be program termination due to exception, or quick shutdown due to |
| low power. Examples of the second case are when a kernel is running too long, or gets stuck, |
| or it may result from user action which makes the results of the computation unnecessary. |
| </p> |
| <p> |
| In many cases, the driver or the device is capable of speeding up the closure of ongoing |
| operations when the results are no longer required in a much more expedient manner than |
| waiting for all previously enqueued operations to finish. |
| </p> |
| <p> |
| This extension implements a new query to check whether a device can terminate an OpenCL |
| context and adds an API to terminate a context. |
| </p> |
| <p> |
| This extensions enables the following function: |
| </p> |
| <div class="informaltable"> |
| <table class="informaltable" border="0"> |
| <colgroup> |
| <col align="left" class="col1" /> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td align="left"> |
| <a class="citerefentry" href="clTerminateContextKHR.html"><span class="citerefentry"><span class="refentrytitle">clTerminateContextKHR</span></span></a> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <p> |
| This extensions adds changes to the following: |
| </p> |
| <div class="informaltable"> |
| <table class="informaltable" border="0"> |
| <colgroup> |
| <col align="left" class="col1" /> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td align="left"> |
| <a class="citerefentry" href="clGetDeviceInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetDeviceInfo</span></span></a> |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <a class="citerefentry" href="clCreateContext.html"><span class="citerefentry"><span class="refentrytitle">clCreateContext</span></span></a> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </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-extensions.pdf#namedest=cl_khr_terminate_context" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="clTerminateContextKHR.html"><span class="citerefentry"><span class="refentrytitle">clTerminateContextKHR</span>, |
| <a class="citerefentry" href="clGetDeviceInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetDeviceInfo</span></span></a>, |
| <a class="citerefentry" href="clCreateContext.html"><span class="citerefentry"><span class="refentrytitle">clCreateContext</span></span></a></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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| in all copies or substantial portions of the Materials. |
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