<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>NVIDIA CUDA Library: Event Management</title> <link href="customdoxygen.css" rel="stylesheet" type="text/css"> <link href="tabs.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.5.8 --> <div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul> </div> </div> <div class="contents"> <h1>Event Management<br> <small> [<a class="el" href="group__CUDART.html">CUDA Runtime API</a>]</small> </h1><table border="0" cellpadding="0" cellspacing="0"> <tr><td></td></tr> <tr><td colspan="2"><br><h2>Functions</h2></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="group__CUDART__TYPES_gf599e5b8b829ce7db0f5216928f6ecb6.html#gf599e5b8b829ce7db0f5216928f6ecb6">cudaError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CUDART__EVENT_g320ab51604f3a7a082795202e7eaf774.html#g320ab51604f3a7a082795202e7eaf774">cudaEventCreate</a> (<a class="el" href="group__CUDART__TYPES_gea2f543a9fc0e52fe4ae712920fd1247.html#gea2f543a9fc0e52fe4ae712920fd1247">cudaEvent_t</a> *event)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Creates an event object. <a href="#g320ab51604f3a7a082795202e7eaf774"></a><br></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="group__CUDART__TYPES_gf599e5b8b829ce7db0f5216928f6ecb6.html#gf599e5b8b829ce7db0f5216928f6ecb6">cudaError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CUDART__EVENT_g358607fbf0169c75b5f9dad38edba956.html#g358607fbf0169c75b5f9dad38edba956">cudaEventCreateWithFlags</a> (<a class="el" href="group__CUDART__TYPES_gea2f543a9fc0e52fe4ae712920fd1247.html#gea2f543a9fc0e52fe4ae712920fd1247">cudaEvent_t</a> *event, unsigned int flags)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Creates an event object with the specified flags. <a href="#g358607fbf0169c75b5f9dad38edba956"></a><br></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="group__CUDART__TYPES_gf599e5b8b829ce7db0f5216928f6ecb6.html#gf599e5b8b829ce7db0f5216928f6ecb6">cudaError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CUDART__EVENT_g513a33d6c552db36be7edc5b3e9e0765.html#g513a33d6c552db36be7edc5b3e9e0765">cudaEventDestroy</a> (<a class="el" href="group__CUDART__TYPES_gea2f543a9fc0e52fe4ae712920fd1247.html#gea2f543a9fc0e52fe4ae712920fd1247">cudaEvent_t</a> event)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Destroys an event object. <a href="#g513a33d6c552db36be7edc5b3e9e0765"></a><br></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="group__CUDART__TYPES_gf599e5b8b829ce7db0f5216928f6ecb6.html#gf599e5b8b829ce7db0f5216928f6ecb6">cudaError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CUDART__EVENT_g14c387cc57ce2e328f6669854e6020a5.html#g14c387cc57ce2e328f6669854e6020a5">cudaEventElapsedTime</a> (float *ms, <a class="el" href="group__CUDART__TYPES_gea2f543a9fc0e52fe4ae712920fd1247.html#gea2f543a9fc0e52fe4ae712920fd1247">cudaEvent_t</a> start, <a class="el" href="group__CUDART__TYPES_gea2f543a9fc0e52fe4ae712920fd1247.html#gea2f543a9fc0e52fe4ae712920fd1247">cudaEvent_t</a> end)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Computes the elapsed time between events. <a href="#g14c387cc57ce2e328f6669854e6020a5"></a><br></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="group__CUDART__TYPES_gf599e5b8b829ce7db0f5216928f6ecb6.html#gf599e5b8b829ce7db0f5216928f6ecb6">cudaError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CUDART__EVENT_gf8e4ddb569b1da032c060f0c54da698f.html#gf8e4ddb569b1da032c060f0c54da698f">cudaEventQuery</a> (<a class="el" href="group__CUDART__TYPES_gea2f543a9fc0e52fe4ae712920fd1247.html#gea2f543a9fc0e52fe4ae712920fd1247">cudaEvent_t</a> event)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Queries an event's status. <a href="#gf8e4ddb569b1da032c060f0c54da698f"></a><br></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="group__CUDART__TYPES_gf599e5b8b829ce7db0f5216928f6ecb6.html#gf599e5b8b829ce7db0f5216928f6ecb6">cudaError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CUDART__EVENT_ga324d5ce3fbf46899b15e5e42ff9cfa5.html#ga324d5ce3fbf46899b15e5e42ff9cfa5">cudaEventRecord</a> (<a class="el" href="group__CUDART__TYPES_gea2f543a9fc0e52fe4ae712920fd1247.html#gea2f543a9fc0e52fe4ae712920fd1247">cudaEvent_t</a> event, <a class="el" href="group__CUDART__TYPES_ge15d9c8b7a240312b533d6122558085a.html#ge15d9c8b7a240312b533d6122558085a">cudaStream_t</a> stream=0)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Records an event. <a href="#ga324d5ce3fbf46899b15e5e42ff9cfa5"></a><br></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="group__CUDART__TYPES_gf599e5b8b829ce7db0f5216928f6ecb6.html#gf599e5b8b829ce7db0f5216928f6ecb6">cudaError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CUDART__EVENT_g08241bcf5c5cb686b1882a8492f1e2d9.html#g08241bcf5c5cb686b1882a8492f1e2d9">cudaEventSynchronize</a> (<a class="el" href="group__CUDART__TYPES_gea2f543a9fc0e52fe4ae712920fd1247.html#gea2f543a9fc0e52fe4ae712920fd1247">cudaEvent_t</a> event)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Waits for an event to complete. <a href="#g08241bcf5c5cb686b1882a8492f1e2d9"></a><br></td></tr> </table> <hr><a name="_details"></a><h2>Detailed Description</h2> This section describes the event management functions of the CUDA runtime application programming interface. </div> <hr size="1"><address style="text-align: right;"><small> Generated by Doxygen for NVIDIA CUDA Library <a href="http://www.nvidia.com/cuda"><img src="nvidia_logo.jpg" alt="NVIDIA" align="middle" border="0" height="80"></a></small></address> </body> </html>