98 lines
4.7 KiB
HTML
Executable File
98 lines
4.7 KiB
HTML
Executable File
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
|
<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
|
|
<title>MPI On Cell (Documentation): Timers and Synchronization</title>
|
|
<link href="../../doxygen.css" rel="stylesheet" type="text/css">
|
|
<link href="../../tabs.css" rel="stylesheet" type="text/css">
|
|
</head><body>
|
|
<!-- Generated by Doxygen 1.5.6 -->
|
|
<div class="navigation" id="top">
|
|
<div class="tabs">
|
|
<ul>
|
|
<li><a href="../../main.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>
|
|
</ul>
|
|
</div>
|
|
</div>
|
|
<div class="contents">
|
|
<h1>Timers and Synchronization<br>
|
|
<small>
|
|
[<a class="el" href="../../de/d1b/group__environment__main.html">Environmental Management</a>]</small>
|
|
</h1>
|
|
<p>
|
|
<div class="dynheader">
|
|
Collaboration diagram for Timers and Synchronization:</div>
|
|
<div class="dynsection">
|
|
<center><table><tr><td><img src="../../d8/da6/group__environment__timer.png" border="0" alt="" usemap="#d0/d16/d8_2da6_2group____environment____timer_map">
|
|
<map name="d0/d16/d8_2da6_2group____environment____timer_map">
|
|
<area shape="rect" href="../../de/d1b/group__environment__main.html" title="This chapter discusses routines for getting and, where appropriate, setting various..." alt="" coords="5,5,187,32"></map></td></tr></table></center>
|
|
</div>
|
|
<hr><a name="_details"></a><h2>Detailed Description</h2>
|
|
Functions to measure time.
|
|
<p>
|
|
On the PPU gettimeofday from time.h is used. On the SPU either also gettimeofday or the spu-timer-library is used depending on the configuration during compilation of the MOC-library. When gettimeofday is used on the SPU the time is global in the MOC-environment with the disadvantage that the SPU-threads get their times from the PPU using DMA causing inaccuracy and delays.
|
|
<p>
|
|
<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">double </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/da6/group__environment__timer.html#g415b17505f06a12f26c6aa735d00158f">MOC_Wtime</a> (void)</td></tr>
|
|
|
|
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns a floating-point number of seconds, representing elapsed wall-clock time since some time in the past. <a href="#g415b17505f06a12f26c6aa735d00158f"></a><br></td></tr>
|
|
<tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/da6/group__environment__timer.html#gc846a7a21aeafdc5e960e91cb7d602be">MOC_Wtick</a> (void)</td></tr>
|
|
|
|
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the resolution of Moc_Wtime in seconds. <a href="#gc846a7a21aeafdc5e960e91cb7d602be"></a><br></td></tr>
|
|
</table>
|
|
<hr><h2>Function Documentation</h2>
|
|
<a class="anchor" name="gc846a7a21aeafdc5e960e91cb7d602be"></a><!-- doxytag: member="moc.h::MOC_Wtick" ref="gc846a7a21aeafdc5e960e91cb7d602be" args="(void)" -->
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">double MOC_Wtick </td>
|
|
<td>(</td>
|
|
<td class="paramtype">void </td>
|
|
<td class="paramname"> </td>
|
|
<td> ) </td>
|
|
<td></td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
<div class="memdoc">
|
|
|
|
<p>
|
|
Returns the resolution of Moc_Wtime in seconds.
|
|
<p>
|
|
<dl class="return" compact><dt><b>Returns:</b></dt><dd>resolution in seconds. </dd></dl>
|
|
|
|
</div>
|
|
</div><p>
|
|
<a class="anchor" name="g415b17505f06a12f26c6aa735d00158f"></a><!-- doxytag: member="moc.h::MOC_Wtime" ref="g415b17505f06a12f26c6aa735d00158f" args="(void)" -->
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">double MOC_Wtime </td>
|
|
<td>(</td>
|
|
<td class="paramtype">void </td>
|
|
<td class="paramname"> </td>
|
|
<td> ) </td>
|
|
<td></td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
<div class="memdoc">
|
|
|
|
<p>
|
|
Returns a floating-point number of seconds, representing elapsed wall-clock time since some time in the past.
|
|
<p>
|
|
<dl class="return" compact><dt><b>Returns:</b></dt><dd>wall-clock time in seconds. </dd></dl>
|
|
|
|
</div>
|
|
</div><p>
|
|
</div>
|
|
<hr size="1"><address style="text-align: right;"><small>Generated on Thu Feb 12 13:48:18 2009 for MPI On Cell (Documentation) by
|
|
<a href="http://www.doxygen.org/index.html">
|
|
<img src="../../doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
|
|
</body>
|
|
</html>
|