{"id":9468,"date":"2010-05-28T15:33:49","date_gmt":"2010-05-28T13:33:49","guid":{"rendered":"https:\/\/web.computaex.es\/?page_id=9468"},"modified":"2025-08-27T08:58:06","modified_gmt":"2025-08-27T06:58:06","slug":"performance-study-of-hyper-threading-technology-on-the-lusitania-supercomputer","status":"publish","type":"page","link":"https:\/\/computaex.es\/en\/publicaciones\/performance-study-of-hyper-threading-technology-on-the-lusitania-supercomputer\/","title":{"rendered":"Performance Study of Hyper-Threading Technology on the LUSITANIA Supercomputer"},"content":{"rendered":"

C\u00e9sar G\u00f3mez-Mart\u00edn, Jos\u00e9-Luis Gonz\u00e1lez-S\u00e1nchez, Javier Corral-Garc\u00eda, \u00c1ngel Bejarano-Borrega, Javier L\u00e1zaro-Jare\u00f1o: \u00abPerformance Study of Hyper-Threading Technology on the LUSITANIA Supercomputer<\/strong>\u00ab.<\/strong>\u00a0Ibergrid 2010<\/a>. ISBN 978-84-9745-549-7. 12 p\u00e1ginas. Braga, Portugal. Mayo de 2010. DOI: 10.4272\/978-84-9745-549-7.ch5<\/p>\n

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\n

Abstract.<\/strong>
\nIn this paper Hyper-Threading technology is evaluated on the LUSITANIA supercomputer. LUSITANIA is a SMP-ccNUMA system composed of two HP Integrity SuperDomes SX2000.
\nThe effects of Intel\u2019s Hyper-Threading Technology on Intel Itanium processors are not very clear, in order to understand how this technology affects the performance of LUSITANIA, several benchmarks have been studied.
\nThose bechmarks have been carefully chosen to try to demonstrate the performance gain or degradation when running different kind of applications.
\nThe results demonstrate that Hyper-Threading achieve better performance when the application needs to communicate data among processes or threads, but, whenever the application is embarrassingly parallel, cache-friendly or all the floating point units are optimized it is not advisable to enable HyperThreading. We have also empirically study that the sense of the application will determine whether Hyper-Threading will accelerate or diminish performance. Enabling Hyper-Threading or disabling it is not an exact science, it depends on so many factors that a bechmark study of the problem that is going to be addressed is highly recommended.<\/p>\n<\/div>\n<\/div>\n

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C\u00e9sar G\u00f3mez-Mart\u00edn, Jos\u00e9-Luis Gonz\u00e1lez-S\u00e1nchez, Javier Corral-Garc\u00eda, \u00c1ngel Bejarano-Borrega, Javier L\u00e1zaro-Jare\u00f1o: \u00abPerformance Study of Hyper-Threading Technology on the LUSITANIA Supercomputer\u00ab.\u00a0Ibergrid 2010. ISBN 978-84-9745-549-7. 12 p\u00e1ginas. Braga, Portugal. Mayo de 2010. DOI: …<\/p>","protected":false},"author":1,"featured_media":0,"parent":1583,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[110],"tags":[],"class_list":["post-9468","page","type-page","status-publish","hentry","category-anteriores"],"yoast_head":"\nPerformance Study of Hyper-Threading Technology on the LUSITANIA Supercomputer - Fundaci\u00f3n COMPUTAEX<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/computaex.es\/en\/publicaciones\/performance-study-of-hyper-threading-technology-on-the-lusitania-supercomputer\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Performance Study of Hyper-Threading Technology on the LUSITANIA Supercomputer - Fundaci\u00f3n COMPUTAEX\" \/>\n<meta property=\"og:description\" content=\"C\u00e9sar G\u00f3mez-Mart\u00edn, Jos\u00e9-Luis Gonz\u00e1lez-S\u00e1nchez, Javier Corral-Garc\u00eda, \u00c1ngel Bejarano-Borrega, Javier L\u00e1zaro-Jare\u00f1o: \u00abPerformance Study of Hyper-Threading Technology on the LUSITANIA Supercomputer\u00ab.\u00a0Ibergrid 2010. 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