CINXE.COM

Geant4 Computing Performance Benchmarking and Monitoring - CERN Document Server

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <!--[if IEMobile 7]><html class="iem7" xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"><![endif]--> <!--[if lte IE 6]><html class="ie6 ie6-7 ie6-8" xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"><![endif]--> <!--[if (IE 7)&(!IEMobile)]><html class="ie7 ie6-7 ie6-8" xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"><![endif]--> <!--[if IE 8]><html class="ie8 ie6-8" xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"><![endif]--> <!--[if (gte IE 9)|(gt IEMobile 7)]><!--><html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"><!--<![endif]--> <head> <title>Geant4 Computing Performance Benchmarking and Monitoring - CERN Document Server</title> <link href='https://framework.web.cern.ch/framework/2.0/fonts/PTSansWeb/PTSansWeb.css' rel='stylesheet' type='text/css' /> <link rel="stylesheet" href="https://cds.cern.ch/img/invenio.css?v=20141127" type="text/css" /> <link rel="stylesheet" href="https://cds.cern.ch/img/cern_theme/css/cern_theme.css?v=20141127" type="text/css" /> <link rel="stylesheet"href="/css/font-awesome.min.css"> <meta http-equiv="X-UA-Compatible" content="IE=Edge"/> <link rel="stylesheet" href="https://cds.cern.ch/img/cern_toolbar/css/toolbar.css" type="text/css" /> <!--[if lt IE 8]> <link href="https://cds.cern.ch/img/cern_toolbar/css/toolbar-ie.css" rel="stylesheet" type="text/css"> <![endif]--> <!--[if lt IE 8]> <link rel="stylesheet" type="text/css" href="https://cds.cern.ch/img/invenio-ie7.css" /> <![endif]--> <!--[if gt IE 8]> <style type="text/css">div.restrictedflag {filter:none;}</style> <![endif]--> <link rel="canonical" href="https://cds.cern.ch/record/2134601" /> <link rel="alternate" hreflang="el" href="https://cds.cern.ch/record/2134601?ln=el" /> <link rel="alternate" hreflang="fr" href="https://cds.cern.ch/record/2134601?ln=fr" /> <link rel="alternate" hreflang="bg" href="https://cds.cern.ch/record/2134601?ln=bg" /> <link rel="alternate" hreflang="zh-TW" href="https://cds.cern.ch/record/2134601?ln=zh_TW" /> <link rel="alternate" hreflang="pt" href="https://cds.cern.ch/record/2134601?ln=pt" /> <link rel="alternate" hreflang="no" href="https://cds.cern.ch/record/2134601?ln=no" /> <link rel="alternate" hreflang="hr" href="https://cds.cern.ch/record/2134601?ln=hr" /> <link rel="alternate" hreflang="ca" href="https://cds.cern.ch/record/2134601?ln=ca" /> <link rel="alternate" hreflang="de" href="https://cds.cern.ch/record/2134601?ln=de" /> <link rel="alternate" hreflang="it" href="https://cds.cern.ch/record/2134601?ln=it" /> <link rel="alternate" hreflang="zh-CN" href="https://cds.cern.ch/record/2134601?ln=zh_CN" /> <link rel="alternate" hreflang="sv" href="https://cds.cern.ch/record/2134601?ln=sv" /> <link rel="alternate" hreflang="sk" href="https://cds.cern.ch/record/2134601?ln=sk" /> <link rel="alternate" hreflang="en" href="https://cds.cern.ch/record/2134601?ln=en" /> <link rel="alternate" hreflang="pl" href="https://cds.cern.ch/record/2134601?ln=pl" /> <link rel="alternate" hreflang="ru" href="https://cds.cern.ch/record/2134601?ln=ru" /> <link rel="alternate" hreflang="ka" href="https://cds.cern.ch/record/2134601?ln=ka" /> <link rel="alternate" hreflang="ja" href="https://cds.cern.ch/record/2134601?ln=ja" /> <link rel="alternate" hreflang="es" href="https://cds.cern.ch/record/2134601?ln=es" /> <link rel="alternate" type="application/rss+xml" title="CERN Document Server RSS" href="/rss?ln=en" /> <link rel="search" type="application/opensearchdescription+xml" href="https://cds.cern.ch/opensearchdescription" title="CERN Document Server" /> <link rel="unapi-server" type="application/xml" title="unAPI" href="https://cds.cern.ch/unapi" /> <link rel="apple-touch-icon" href="/apple-touch-icon.png"/> <link rel="apple-touch-icon-precomposed" href="/apple-touch-icon-precomposed.png"/> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Language" content="en" /> <meta name="description" content="Performance evaluation and analysis of large scale computing applications is essential for optimal use of resources. As detector simulation is one of the most compute intensive tasks and Geant4 is the simulation toolkit most widely used in contemporary high energy physics (HEP) experiments, it is important to monitor Geant4 through its development cycle for changes in computing performance and to identify problems and opportunities for code improvements. All Geant4 development and public releases are being profiled with a set of applications that utilize different input event samples, physics parameters, and detector configurations. Results from multiple benchmarking runs are compared to previous public and development reference releases to monitor CPU and memory usage. Observed changes are evaluated and correlated with code modifications. Besides the full summary of call stack and memory footprint, a detailed call graph analysis is available to Geant4 developers for further analysis. The set of software tools used in the performance evaluation procedure, both in sequential and multi-threaded modes, include FAST, IgProf and Open|Speedshop. The scalability of the CPU time and memory performance in multi-threaded application is evaluated by measuring event throughput and memory gain as a function of the number of threads for selected event samples. Dotti, Andrea; Elvira, V Daniel; Folger, Gunter; Genser, Krzysztof; Jun, Soon Yung; Kowalkowski, James B; Paterno, Marc" /> <meta name="keywords" content="CERN Document Server, WebSearch, CERN Document Server" /> <script type="text/javascript" src="https://cds.cern.ch/js/jquery.min.js"></script> <!-- WebNews CSS library --> <link rel="stylesheet" href="https://cds.cern.ch/img/webnews.css" type="text/css" /> <!-- WebNews JS library --> <script type="text/javascript" src="https://cds.cern.ch/js/webnews.js?v=20131009"></script> <meta property="fb:app_id" content="137353533001720"/> <script type="text/x-mathjax-config"> MathJax.Hub.Config({ tex2jax: {inlineMath: [['$','$']], processEscapes: true}, showProcessingMessages: false, messageStyle: "none" }); </script> <script src="/MathJax/MathJax.js?config=TeX-AMS_CHTML" type="text/javascript"> </script> <!-- GoogleScholar --> <meta content="Geant4 Computing Performance Benchmarking and Monitoring" name="citation_title" /> <meta content="Dotti, Andrea" name="citation_author" /> <meta content="Folger, Gunter" name="citation_author" /> <meta content="Jun, Soon Yung" name="citation_author" /> <meta content="Paterno, Marc" name="citation_author" /> <meta content="Elvira, V Daniel" name="citation_author" /> <meta content="Kowalkowski, James B" name="citation_author" /> <meta content="Genser, Krzysztof" name="citation_author" /> <meta content="10.1088/1742-6596/664/6/062021" name="citation_doi" /> <meta content="J. Phys.: Conf. Ser." name="citation_journal_title" /> <meta content="664" name="citation_volume" /> <meta content="062021" name="citation_firstpage" /> <meta content="2015" name="citation_publication_date" /> <meta name="citation_online_date" content="2016/02/26"> <meta content="FERMILAB-CONF-15-599-CD" name="citation_technical_report_number" /> <meta content="10.1088/1742-6596/664/6/062021" name="citation_doi" /> <meta name="citation_pdf_url" content="https://cds.cern.ch/record/2134601/files/Geant4 Computing Performance Benchmarking and Monitoring.pdf" /> <!-- OpenGraph --> <meta content="Geant4 Computing Performance Benchmarking and Monitoring" property="og:title" /> <meta content="website" property="og:type" /> <meta content="website" property="og:type" /> <meta content="https://cds.cern.ch/record/2134601" property="og:url" /> <meta content="CERN Document Server" property="og:site_name" /> <meta content="Performance evaluation and analysis of large scale computing applications is essential for optimal use of resources. As detector simulation is one of the most compute intensive tasks and Geant4 is the simulation toolkit most widely used in contemporary high energy physics (HEP) experiments, it is important to monitor Geant4 through its development cycle for changes in computing performance and to identify problems and opportunities for code improvements. All Geant4 development and public releases are being profiled with a set of applications that utilize different input event samples, physics parameters, and detector configurations. Results from multiple benchmarking runs are compared to previous public and development reference releases to monitor CPU and memory usage. Observed changes are evaluated and correlated with code modifications. Besides the full summary of call stack and memory footprint, a detailed call graph analysis is available to Geant4 developers for further analysis. The set of software tools used in the performance evaluation procedure, both in sequential and multi-threaded modes, include FAST, IgProf and Open|Speedshop. The scalability of the CPU time and memory performance in multi-threaded application is evaluated by measuring event throughput and memory gain as a function of the number of threads for selected event samples." property="og:description" /> <meta content="IOP" property="og:description" /> <!-- Twitter Card --> <meta content="summary" name="twitter:card" /> <meta content="summary" name="twitter:card" /> <style></style> </head> <body class="CERN32Document32Server search" lang="en"> <!-- toolbar starts --> <div id="cern-toolbar"> <h1><a href="http://cern.ch" title="CERN">CERN <span>Accelerating science</span></a></h1> <ul> <li class="cern-accountlinks"><a class="cern-account" href="https://cds.cern.ch/youraccount/login?ln=en&amp;referer=https%3A//cds.cern.ch/record/2134601%3Fln%3Den" title="Sign in to your CERN account">Sign in</a></li> <li><a class="cern-directory" href="http://cern.ch/directory" title="Search CERN resources and browse the directory">Directory</a></li> </ul> </div> <!-- toolbar ends --> <!-- Nav header starts--> <div role="banner" class="clearfix" id="header"> <div class="header-inner inner"> <hgroup class="clearfix"> <h2 id="site-name"> <a rel="home" title="Home" href="/"><span>CERN Document Server</span></a> </h2> <h3 id="site-slogan">Access articles, reports and multimedia content in HEP</h3> </hgroup><!-- /#name-and-slogan --> <div role="navigation" id="main-navigation" class="cdsmenu"> <h2 class="element-invisible">Main menu</h2><ul class="links inline clearfix"> <li class="menu-386 first active-trail"><a class="active-trail" href="https://cds.cern.ch/?ln=en">Search</a></li> <li class="menu-444 "><a class="" title="" href="https://cds.cern.ch/submit?ln=en">Submit</a></li> <li class="menu-426 "><a class="" href="https://cds.cern.ch/help/?ln=en">Help</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=en">Personalize</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=en">Your alerts</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=en">Your baskets</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=en">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=en">Your searches</a></li></ul></li> </ul> </div> </div> </div> <!-- Nav header ends--> <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=en" class="navtrail">Home</a> &gt; Geant4 Computing Performance Benchmarking and Monitoring </td> </tr> </table> </div> <div class="pagebody"><div class="pagebodystripemiddle"> <div class="detailedrecordbox"> <div class="detailedrecordtabs"> <div> <ul class="detailedrecordtabs"><li class="on first"><a href="/record/2134601/?ln=en">Information </a></li><li class=""><a href="/record/2134601/files?ln=en">Files </a></li></ul> <div id="tabsSpacer" style="clear:both;height:0px">&nbsp;</div></div> </div> <div class="detailedrecordboxcontent"> <div class="top-left-folded"></div> <div class="top-right-folded"></div> <div class="inside"> <!--<div style="height:0.1em;">&nbsp;</div> <p class="notopgap">&nbsp;</p>--> <abbr class="unapi-id" title="2134601"></abbr> <style type="text/css"> <!-- ul.detailedrecordtabs li.on a{background-color:#4D94CC;color:#fff !important;border-bottom:1px solid #4D94CC!important;} div.detailedrecordboxcontent {padding-top:0px !important;} --> </style> <table class="formatRecordTableFullWidth" > <tr> <td class="formatRecordHeader" style="background-image: url('https://cds.cern.ch/img/journals.jpg');" colspan="2"> <!--YTD: record may have more than one 690C.a tag--> <a style="color:#fff;text-decoration:none" href="https://cds.cern.ch/collection/Published%20Articles">Published Articles</a> </td> </tr> <script type="text/javascript"> $( document ).ready(function() { $('.showAuthor').on('click', function() { var author = '<p>' + $(this).data('name') + '</p>'; var affiliation = $(this).data('affiliation') + '</br>'; var contribution = $(this).data('contribution') + '</br>'; $.magnificPopup.open({ items: { src: '<div id="ovelary-mathjax" class="overlay-white oc-content overlay-white-500">' + author + affiliation + contribution + '</div>', type: 'inline' }, callbacks: { open: function() { var div = document.getElementById("overlay-mathjax") MathJax.Hub.Queue(["Typeset", MathJax.Hub, div]); }, } }) }) }); </script> <tr><td class="formatRecordLabel"> Report number </td><td style="padding-left:5px;">FERMILAB-CONF-15-599-CD</td></tr> <tr><td class="formatRecordLabel"> Title </td><td style="padding-left:5px;"><b>Geant4 Computing Performance Benchmarking and Monitoring</b></td></tr> <tr><td class="formatRecordLabel"><span style="white-space:nowrap;"> Author(s) </span> </td><td style="padding-left:5px;"><a href="https://cds.cern.ch/search?f=author&amp;p=Dotti%2C%20Andrea&amp;ln=en">Dotti, Andrea</a> (SLAC) ; <a href="https://cds.cern.ch/search?f=author&amp;p=Elvira%2C%20V%20Daniel&amp;ln=en">Elvira, V Daniel</a> (Fermilab) ; <a href="https://cds.cern.ch/search?f=author&amp;p=Folger%2C%20Gunter&amp;ln=en">Folger, Gunter</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&amp;p=Genser%2C%20Krzysztof&amp;ln=en">Genser, Krzysztof</a> (Fermilab) ; <a href="https://cds.cern.ch/search?f=author&amp;p=Jun%2C%20Soon%20Yung&amp;ln=en">Jun, Soon Yung</a> (Fermilab) ; <a href="https://cds.cern.ch/search?f=author&amp;p=Kowalkowski%2C%20James%20B&amp;ln=en">Kowalkowski, James B</a> (Fermilab) ; <a href="https://cds.cern.ch/search?f=author&amp;p=Paterno%2C%20Marc&amp;ln=en">Paterno, Marc</a> (Fermilab)</td></tr> <tr><td class="formatRecordLabel"> Publication </td><td style="padding-left:5px;">2015</td></tr> <tr><td class="formatRecordLabel"> Number of pages </td><td style="padding-left:5px;">8</td></tr> <tr><td class="formatRecordLabel"> In: </td><td style="padding-left:5px;"><a href="http://dx.doi.org/10.1088/1742-6596/664/6/062021"><i>J. Phys.: Conf. Ser.</i> 664 (2015) 062021</a> </a></td></tr> <tr><td class="formatRecordLabel"> In: </td><td style="padding-left:5px;"><a href="https://cds.cern.ch/record/1958286">21st International Conference on Computing in High Energy and Nuclear Physics</a>, Okinawa, Japan, 13 - 17 Apr 2015, pp.062021</td></tr> <tr><td class="formatRecordLabel"> DOI </td><td style="padding-left:5px;"><a href="http://dx.doi.org/10.1088/1742-6596/664/6/062021" title="DOI" target="_blank">10.1088/1742-6596/664/6/062021</a> <tr><td class="formatRecordLabel"> Subject category </td><td style="padding-left:5px;">Computing and Computers</td></tr> <tr><td class="formatRecordLabel"> Abstract </td><td style="padding-left:5px;">Performance evaluation and analysis of large scale computing applications is essential for optimal use of resources. As detector simulation is one of the most compute intensive tasks and Geant4 is the simulation toolkit most widely used in contemporary high energy physics (HEP) experiments, it is important to monitor Geant4 through its development cycle for changes in computing performance and to identify problems and opportunities for code improvements. All Geant4 development and public releases are being profiled with a set of applications that utilize different input event samples, physics parameters, and detector configurations. Results from multiple benchmarking runs are compared to previous public and development reference releases to monitor CPU and memory usage. Observed changes are evaluated and correlated with code modifications. Besides the full summary of call stack and memory footprint, a detailed call graph analysis is available to Geant4 developers for further analysis. The set of software tools used in the performance evaluation procedure, both in sequential and multi-threaded modes, include FAST, IgProf and Open|Speedshop. The scalability of the CPU time and memory performance in multi-threaded application is evaluated by measuring event throughput and memory gain as a function of the number of threads for selected event samples.</td></tr> <tr><td class="formatRecordLabel"> Copyright/License </td><td style="padding-left:5px;">publication: &copy; 2015-2025 The Author(s) (License: <a href="http://creativecommons.org/licenses/by/3.0/">CC-BY-3.0</a>)</td></tr> </table> <br/>Corresponding record in: <a href="http://inspirehep.net/record/1413942">Inspire</a> <small> </small> <br/> <br/><br/><div align="right"><div style="padding-bottom:2px;padding-top:30px;"><span class="moreinfo" style="margin-right:10px;"> <a href="" class="moreinfo">Back to search</a> </span></div></div> <div class="bottom-left-folded"><div class="recordlastmodifiedbox" style="position:relative;margin-left:1px">&nbsp;Record created 2016-02-26, last modified 2022-08-10</div></div> <div class="bottom-right-folded" style="text-align:right;padding-bottom:2px;"> <span class="moreinfo" style="margin-right:10px;"><a href="/search?ln=en&amp;p=recid%3A2134601&amp;rm=wrd" class="moreinfo">Similar records</a></span></div> </div> </div> </div> <br/> <br /> <div class="detailedrecordminipanel"> <div class="top-left"></div><div class="top-right"></div> <div class="inside"> <div id="detailedrecordminipanelfile" style="width:33%;float:left;text-align:center;margin-top:0"> <div><small class="detailedRecordActions">IOP Open Access article:</small> <br /><a href="/record/2134601/files/Geant4 Computing Performance Benchmarking and Monitoring.pdf"><img style="border:none" src="/img/file-icon-text-34x48.gif" alt="Download fulltext" /><br />PDF</a><br /></div> </div> <div id="detailedrecordminipanelreview" style="width:30%;float:left;text-align:center"> </div> <div id="detailedrecordminipanelactions" style="width:36%;float:right;text-align:right;"> <ul class="detailedrecordactions"> <li><a href="/yourbaskets/add?ln=en&amp;recid=2134601">Add to personal basket</a></li> <li>Export as <a style="text-decoration:underline;font-weight:normal" href="/record/2134601/export/hx?ln=en">BibTeX</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2134601/export/hm?ln=en">MARC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2134601/export/xm?ln=en">MARCXML</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2134601/export/xd?ln=en">DC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2134601/export/xe?ln=en">EndNote</a>, <!-- <a style="text-decoration:underline;font-weight:normal" href="/record/2134601/export/xe8x?ln=en">EndNote (8-X)</a>,--> <a style="text-decoration:underline;font-weight:normal" href="/record/2134601/export/xn?ln=en">NLM</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2134601/export/xw?ln=en">RefWorks</a> </li> </ul> <div style='padding-left: 13px;'> <!-- JQuery Bookmark Button BEGIN --> <div id="bookmark"></div> <div id="bookmark_sciencewise"></div> <style type="text/css"> #bookmark_sciencewise, #bookmark {float: left;} #bookmark_sciencewise li {padding: 2px; width: 25px;} #bookmark_sciencewise ul, #bookmark ul {list-style-image: none;} </style> <script type="text/javascript" src="/js/jquery.bookmark.min.js"></script> <style type="text/css">@import "/css/jquery.bookmark.css";</style> <script type="text/javascript">// <![CDATA[ $.bookmark.addSite('sciencewise', 'ScienceWise.info', 'https://cds.cern.ch/img/sciencewise.png', 'en', 'bookmark', 'http://sciencewise.info/bookmarks/cds:2134601/add'); $('#bookmark_sciencewise').bookmark({sites: ['sciencewise']}); $('#bookmark').bookmark({ sites: ['facebook', 'twitter', 'linkedin', 'google_plusone'], icons: '/img/bookmarks.png', url: 'https://cds.cern.ch/record/2134601', addEmail: true, title: "Geant4 Computing Performance Benchmarking and Monitoring", description: "Performance evaluation and analysis of large scale computing applications is essential for optimal use of resources. As detector simulation is one of the most compute intensive tasks and Geant4 is the simulation toolkit most widely used in contemporary high energy physics (HEP) experiments, it is important to monitor Geant4 through its development cycle for changes in computing performance and to identify problems and opportunities for code improvements. All Geant4 development and public releases are being profiled with a set of applications that utilize different input event samples, physics parameters, and detector configurations. Results from multiple benchmarking runs are compared to previous public and development reference releases to monitor CPU and memory usage. Observed changes are evaluated and correlated with code modifications. Besides the full summary of call stack and memory footprint, a detailed call graph analysis is available to Geant4 developers for further analysis. The set of software tools used in the performance evaluation procedure, both in sequential and multi-threaded modes, include FAST, IgProf and Open|Speedshop. The scalability of the CPU time and memory performance in multi-threaded application is evaluated by measuring event throughput and memory gain as a function of the number of threads for selected event samples." }); // ]]> </script> <!-- JQuery Bookmark Button END --> </div> </div> <div style="clear:both;margin-bottom: 0;"></div> </div> <div class="bottom-left"></div><div class="bottom-right"></div> </div> </div></div> <footer id="footer" class="pagefooter clearfix"> <!-- replaced page footer --> <div class="pagefooterstripeleft"> CERN Document Server&nbsp;::&nbsp;<a class="footer" href="https://cds.cern.ch/?ln=en">Search</a>&nbsp;::&nbsp;<a class="footer" href="https://cds.cern.ch/submit?ln=en">Submit</a>&nbsp;::&nbsp;<a class="footer" href="https://cds.cern.ch/youraccount/display?ln=en">Personalize</a>&nbsp;::&nbsp;<a class="footer" href="https://cds.cern.ch/help/?ln=en">Help</a>&nbsp;::&nbsp;<a class="footer" href="https://cern.service-now.com/service-portal?id=privacy_policy&se=CDS-Service" target="_blank">Privacy Notice</a>&nbsp;::&nbsp;<a class="footer" href="https://repository.cern/content-policy" target="_blank">Content Policy</a>&nbsp;::&nbsp;<a class="footer" href="https://repository.cern/terms" target="_blank">Terms and Conditions</a> <br /> Powered by <a class="footer" href="http://invenio-software.org/">Invenio</a> <br /> Maintained by <a class="footer" href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">CDS Service</a> - Need help? Contact <a href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">CDS Support</a>. <br /> </div> <div class="pagefooterstriperight"> <div class="cern-logo"> <a id="logo" href="http://cern.ch" title="CERN" rel="CERN" ><img src="https://cds.cern.ch/img/cern_theme/img/cern-logo-large.png" alt="CERN" /></a> </div> <div class="cern-languagebox"> This site is also available in the following languages:<br /><a href="/record/2134601?ln=bg" class="langinfo">Български</a> &nbsp;<a href="/record/2134601?ln=ca" class="langinfo">Català</a> &nbsp;<a href="/record/2134601?ln=de" class="langinfo">Deutsch</a> &nbsp;<a href="/record/2134601?ln=el" class="langinfo">Ελληνικά</a> &nbsp;<span class="langinfo">English</span> &nbsp;<a href="/record/2134601?ln=es" class="langinfo">Español</a> &nbsp;<a href="/record/2134601?ln=fr" class="langinfo">Français</a> &nbsp;<a href="/record/2134601?ln=hr" class="langinfo">Hrvatski</a> &nbsp;<a href="/record/2134601?ln=it" class="langinfo">Italiano</a> &nbsp;<a href="/record/2134601?ln=ja" class="langinfo">日本語</a> &nbsp;<a href="/record/2134601?ln=ka" class="langinfo">ქართული</a> &nbsp;<a href="/record/2134601?ln=no" class="langinfo">Norsk/Bokmål</a> &nbsp;<a href="/record/2134601?ln=pl" class="langinfo">Polski</a> &nbsp;<a href="/record/2134601?ln=pt" class="langinfo">Português</a> &nbsp;<a href="/record/2134601?ln=ru" class="langinfo">Русский</a> &nbsp;<a href="/record/2134601?ln=sk" class="langinfo">Slovensky</a> &nbsp;<a href="/record/2134601?ln=sv" class="langinfo">Svenska</a> &nbsp;<a href="/record/2134601?ln=zh_CN" class="langinfo">中文(简)</a> &nbsp;<a href="/record/2134601?ln=zh_TW" class="langinfo">中文(繁)</a> </div> </div> <!-- replaced page footer --> </footer> <script type="text/javascript"> var SyndeticsBookCovers = (function() { var SMALL_SIZE = "sc.gif", MEDIUM_SIZE = "mc.gif", RAW_URL = "https://secure.syndetics.com/index.aspx?isbn=THEISBN/THESIZE&client=cernlibrary"; replaceCover = function(imgElement, isbns, hdFormat) { var img = new Image(), size = hdFormat ? MEDIUM_SIZE : SMALL_SIZE; var _isbns = isbns.sort(function(a, b) { // sort from shortest to longest ISBN (more modern) return a.length > b.length ? 1 : -1; }); function next() { var isbn = _isbns.pop(); if (isbn) { var url = RAW_URL.replace("THEISBN", isbn).replace("THESIZE", size); img.src = url; } } function done() { imgElement.src = img.src; } img.onload = function() { if (this.width > 1) { done(); } else { next(); } }; next(); }; return { replaceCover: replaceCover }; })(); $(document).ready(function() { // get book covers $("img.book-cover").each(function() { var $this = $(this), strIsbns = $this.data("isbns") || "", isbnsArray = String(strIsbns).split(","), hdFormat = $this.hasClass("hd"); SyndeticsBookCovers.replaceCover(this, isbnsArray, hdFormat); }); // WebNews tooltips $.ajax({ url: "/news/tooltips", success: function(data) { create_tooltips(data); }, dataType: "json", cache: false }); }); </script> <!-- Feedback script --> <script src="//cds.cern.ch/js/feedback.js"></script> <!-- Feedback script --> <!-- Matomo --> <script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function() { var u="https://webanalytics.web.cern.ch/"; _paq.push(['setTrackerUrl', u+'matomo.php']); _paq.push(['setSiteId', '756']); var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s); })(); </script> <!-- End Matomo Code --> </body> </html>

Pages: 1 2 3 4 5 6 7 8 9 10