{"id":6317,"date":"2020-06-09T09:45:45","date_gmt":"2020-06-09T07:45:45","guid":{"rendered":"https:\/\/igfae.usc.es\/~igfae-old\/un-superordenador-para-o-cern-con-firma-galega\/"},"modified":"2021-03-24T15:25:22","modified_gmt":"2021-03-24T13:25:22","slug":"superordenador-para-o-cern-con-firma-galega","status":"publish","type":"post","link":"https:\/\/igfae.usc.es\/~igfae-old\/gl\/superordenador-para-o-cern-con-firma-galega\/","title":{"rendered":"Un superordenador para o CERN con firma galega"},"content":{"rendered":"

A colaboraci\u00f3n LHCb aproba un prototipo de superordenador mais potente e eficiente que contou coa participaci\u00f3n do Instituto Galego de F\u00edsica de Altas Enerx\u00edas (IGFAE), centro mixto de la Universidad de Santiago de Compostela (USC) y la Xunta de Galicia. Unha vez construido, utilizarase pra procesar a enorme cantidade de datos que espera volver a tomar o experimento cando retome a s\u00faa actividade en 2021<\/b><\/p>\n

O Gran Colisionador de Hadr\u00f3ns (LHC) do CERN e t\u00f3dolos seus experimentos est\u00e1n apagados dende finais de 2018 pra introducir unha serie de melloras que entrar\u00e1n en funcionamento no terceiro periodo, denominado Run 3, a partires de 2021. O LHCb, un dos seus experimentos, espera po\u00f1erse en marcha de novo e rexistrar\u00a0 mais colisi\u00f3ns\u00a0 por segundo, xerando unha enorme cantidade de datos que se \u00edan procesar\u00a0 cunha grande cantidade de CPUs. Mais varios cient\u00edficos do LHCb idearon unha alternativa m\u00e1is eficiente e con maior potencia de c\u00e1lculo, baseada en tarxetas gr\u00e1ficas (GPU), como as que se usan na industria dos videoxogos.<\/span><\/p>\n

A proposta, liderada por Daniel C\u00e1mpora, de NIKHEF (Amsterdam, Pa\u00edses Baixos), e codirixida por Roel Aiij (NIKHEF) e Dorothea Von Bruch (Sorbonne, Par\u00eds),\u00a0 contou cunha contribuci\u00f3n importante dun equipo do IGFAE, composto por Alexandre Brea, Adri\u00e1n Casais, Xoan Mayo, Diego Mart\u00ednez Santos e Christopher Parkinson (actualmente investigador Marie Curie en Lovain , B\u00e9lxica). Para demostrar a viabilidade da proposta, constru\u00eduse un prototipo, aportado principalmente entre o equipo da USC e o de Sorbonne Universite.<\/span><\/p>\n

O \u00e9xito das probas feitas no prototipo levou \u00e1 colaboraci\u00f3n LHCb a aprobar finalmente esta alternativa baseada en GPUs, debido \u00e1 s\u00faa maior potencia de c\u00e1lculo e o moito menor custo. Unha vez constru\u00eddo, este superordenador -bautizado como Allen, en honor a <\/span>Frances Allen, inform\u00e1tica pioneira no campo de optimizar compiladores<\/span>– alcanzar\u00e1 unha potencia de 6 PFLOPS, convert\u00edndose no mais potente do CERN,\u00a0 e probablemente entrando no top 50 mundial.<\/span><\/p>\n

Mais informaci\u00f3n: <\/span><\/p>\n

\u201cAllen: A high level trigger on GPUs for LHCb\u201d Comput. Softw. Big Sci.<\/span><\/i> 4 (2020) 1, 7.
\n<\/span>DOI: <\/span>10.1007\/s41781-020-00039-7<\/span><\/a><\/p>\n

\u201cUpgrade GPU High Level Trigger\u201d,\u00a0 CERN-LHCC-2020-006<\/span><\/a><\/p>\n

\"\"<\/a>

A foto mostra unha pequena parte do prototipo de Allen, instalado no CERN. O prototipo completo monta 10 unidades como a que se mostra na imaxe. Cr\u00e9dito. IGFAE.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

A colaboraci\u00f3n LHCb aproba un prototipo de superordenador mais potente e eficiente que contou coa participaci\u00f3n do Instituto Galego de F\u00edsica…<\/p>\n","protected":false},"author":21,"featured_media":7341,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[116,117],"tags":[],"aioseo_notices":[],"yoast_head":"\nUn superordenador para o CERN con firma galega - IGFAE<\/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:\/\/igfae.usc.es\/~igfae-old\/gl\/superordenador-para-o-cern-con-firma-galega\/\" \/>\n<meta property=\"og:locale\" content=\"gl_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Un superordenador para o CERN con firma galega - 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