ÿþ<?xml version="1.0" encoding="iso-8859-1"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Toulouse'2009</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <link rel="stylesheet" href="css/template_css.css" type="text/css"/> </head> <body> <table width="770" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td><img src="images/space.gif" width=100% height="1" /></td> </tr> <tr> <td> <table width="100%" height="205x" border="0" cellpadding="0" cellspacing="0" background="images/center.jpg"> <tr> <td width="26" valign="top"><img src="images/left.jpg" width="26" /></td> <td> <table width="100%" border="0" align="center" cellspacing="0" cellpadding="0"> <tr align="center"> <td style="padding-top:20px;"><img src="images/header.jpg" width="728" height="150" /></td> </tr> </table> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="400" height="29" style="padding-top:6px;" > <!-- <div id="search"></div> --> </td> </tr> </table> </td> </tr> </table> </td> <td width="26" valign="top"><img src="images/right.jpg" width="26" /></td> </tr> </table> <table width="770" height="20" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td valign="top" background-repeat: repeat-y;" background="images/shadowl.jpg">&nbsp;</td> <td valign="top" style="background-repeat: repeat-y;"background="images/lb.gif"> <div class="leftrow"> <table cellpadding="0" cellspacing="0" class="moduletable"> <tr> <th valign="top" bgcolor="#c0c0c0"> Menu principal </th> </tr> <tr> <td> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tr align="left"><td><a href="../index.html" class="mainlevel" >Accueil</a></td></tr> <tr align="left"><td><a href="Dates.html" class="mainlevel" >Dates importantes</a></td></tr> <tr align="left"><td><a href="Comite.html" class="mainlevel" >Comit&eacute;</a></td></tr> <tr align="left"><td><a href="Appel.html" class="mainlevel" >Appels &agrave; communications</a></td></tr> <tr align="left"><td><a href="Programme.html" class="mainlevel" >Programme</a></td></tr> <tr align="left"><td><a href="Satellites.html" class="mainlevel" >Manifestations satellites</a></td></tr> <tr align="left"><td><a href="Localisation.html" class="mainlevel" >Localisation</a></td></tr> <tr align="left"><td><a href="Inscription.html" class="mainlevel" >Inscription</a></td></tr> <tr align="left"><td><a href="table_titres.html" class="mainlevel" >Actes</a></td></tr> </table> </td> </tr> </table> <table cellpadding="0" cellspacing="0" class="moduletable"> <tr><td></td></tr> </table> </div> </td> <td valign="top" bgcolor="#FAFAFA" width="100%"> <table width="593" border="0" cellspacing="0" cellpadding="0"> <tr valign="top" bgcolor="#F1F1F1"></tr> <tr></tr> <tr align="left" valign="top"> <td colspan="3" style=" border-top: 4px solid #FFFFFF; padding: 5px;"> <div class="main"> <table class="contentpaneopen"> <tr> <td class="contentheading" width="100%"> Jean-Luc Gaudiot, Université de Californie à Irvine <BR>Value Prediction in Parallel Architectures </td> </td> </tr> </table> <table class="contentpaneopen"> <tr> <td valign="top" colspan="2"> <a href="papiers/Gaudiot_vp.pdf">Talk</a> <p> The newly emerging many-core-on-a-chip designs have renewed an intense interest in parallel processing. By applying Amdahl s formulation to the programs in the PARSEC and SPLASH-2 benchmark suites, we find that most applications may not have sufficient parallelism to efficiently utilize modern parallel machines. The long sequential portions in these application programs are caused by computation as well as communication latency. However, value prediction techniques may allow the  parallelization of the sequential portion by predicting values before they are produced. In conventional superscalar architectures, the computation latency dominates the sequential sections. Thus value prediction techniques may be used to predict the computation result before it is produced. In many-core architectures, since the communication latency increases with the number of cores, value prediction techniques may be used to reduce both the communication and computation latency. We extend these ideas by using GPUs to accelerate programs that contain limited parallelism and those that are hard to parallelize. </tr> </table> <table class="contentpaneopen"> <tr> <h4 class="fp"> Bio: </h4> Jean-Luc Gaudiot is currently a Professor in the Electrical Engineering and Computer Science Department at the University of California, Irvine. In January 2006, he became the first Editor-in-Chief of the IEEE Computer Architecture Letters, a new publication of the IEEE Computer Society, which he helped found to the end of facilitating short, fast turnaround of fundamental ideas in the Computer Architecture domain. His research interests include multithreaded architectures, fault-tolerant multiprocessors, and implementation of reconfigurable architectures. </tr> </table> <span class="article_seperator">&nbsp;</span> </div> </td> </tr> <tr bgcolor="#F1F1F1"> <td colspan="3" valign="top" style="border-top: 3px solid #FFFFFF;"></td> </tr> </table> </td> <td valign="top" style="background-repeat: repeat-y; "background="images/rb.gif"></td> <td valign="top" style="padding-right: 8px; background-repeat: repeat-y;" background="images/shadowr.jpg">&nbsp;</td> </tr> </table> <table width=780 align="center" border="0" cellpadding="0" cellspacing="0" background="images/center2.jpg"> <tr> <td width="26"><img src="images/left2.jpg" /></td> <td> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="85" align="left"><a href="http://www.irit.fr" target="_blank"><img src="images/irit.jpg" border="0" /></a></td> <td align="center"> <div class="footer"> <p>&nbsp;</p> </div> </td> <td width="85" align="right"><a href="http://asr.cnrs.fr" target="_blank"><img height=70 src="images/logoASR.gif" border="0" /></a></td> <td align="center"> <div class="footer"> <p>&nbsp;</p> </div> </td> <td width="85" align="right"><a href="http://www.ups-tlse.fr" target="_blank"><img src="images/logoUPS.jpg" border="0" /></a></td> <td align="center"> <div class="footer"> <p>&nbsp;</p> </div> </td> <td width="85" align="right"><a href="http://www.univ-tlse1.fr" target="_blank"><img src="images/logoUT1.jpg" border="0" /></a></td> <td align="center"> <div class="footer"> <p>&nbsp;</p> </div> </td> <td width="85" align="right"><a href="http://www.midipyrenees.fr/" target="_blank"><img src="images/logoMP.jpg" border="0" /></a></td> </tr> </table> </td> <td width="26"><img src="images/right2.jpg" /></td> </tr> </table> </td> </tr> </table> </body> </html><!-- 1201792254 -->