{"id":2466,"date":"2008-07-17T20:17:48","date_gmt":"2008-07-17T18:17:48","guid":{"rendered":"http:\/\/jhoupier.free.fr\/?p=285"},"modified":"2020-12-03T14:58:59","modified_gmt":"2020-12-03T13:58:59","slug":"cray-2","status":"publish","type":"post","link":"https:\/\/houpier.fr\/?p=2466","title":{"rendered":"Cray 2"},"content":{"rendered":"<p>Commercialisation par [[Cray Inc.]]du CRAY 2 premier ordinateur \u00e0 d\u00e9passer la puissance de 1 Gflop (1 Milliard de calculs en virgule flottante par seconde). La machine est \u00e9quip\u00e9e de 4 processeurs tournant \u00e0 250 MHz et peut adresser directement jusqu? 4 Go de m\u00e9moire vive. Elle tourne sous Unix System V : UNICOS. Chaque processeur a une puissance de 488 Mflops. Un programme de multiplication de matrices utilisant les 4 une puissance de 1.7 Gflops. L&rsquo;unit\u00e9 centrale (sur la droite) est enti\u00e8rement immerg\u00e9e dans un liquide conducteur de chaleur et isolant \u00e9lectrique (fluorinert) pour assurer son refroidissement..<br \/>\n1985<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3349\" src=\"https:\/\/houpier.fr\/wp-content\/uploads\/2008\/07\/ord62_20060726_1092088787.jpg\" alt=\"\" width=\"160\" height=\"127\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Commercialisation par [[Cray Inc.]]du CRAY 2 premier ordinateur \u00e0 d\u00e9passer la puissance de 1 Gflop (1 Milliard de calculs en virgule flottante par seconde). La machine est \u00e9quip\u00e9e de 4 processeurs tournant \u00e0 250 MHz et peut adresser directement jusqu? 4 Go de m\u00e9moire vive. Elle tourne sous Unix System V : UNICOS. Chaque processeur &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/houpier.fr\/?p=2466\" class=\"more-link\">Continuer la lecture<span class=\"screen-reader-text\"> de &laquo;&nbsp;Cray 2&nbsp;&raquo;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[137],"tags":[177],"class_list":["post-2466","post","type-post","status-publish","format-standard","hentry","category-1980-1989","tag-cray"],"_links":{"self":[{"href":"https:\/\/houpier.fr\/index.php?rest_route=\/wp\/v2\/posts\/2466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/houpier.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/houpier.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/houpier.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/houpier.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2466"}],"version-history":[{"count":1,"href":"https:\/\/houpier.fr\/index.php?rest_route=\/wp\/v2\/posts\/2466\/revisions"}],"predecessor-version":[{"id":3350,"href":"https:\/\/houpier.fr\/index.php?rest_route=\/wp\/v2\/posts\/2466\/revisions\/3350"}],"wp:attachment":[{"href":"https:\/\/houpier.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/houpier.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/houpier.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}