{"id":1977,"date":"2024-10-02T15:05:19","date_gmt":"2024-10-02T13:05:19","guid":{"rendered":"https:\/\/numpex.org\/groupe-de-travail-sur-laccelerateur\/"},"modified":"2025-04-09T14:51:56","modified_gmt":"2025-04-09T12:51:56","slug":"groupe-de-travail-sur-laccelerateur","status":"publish","type":"page","link":"https:\/\/numpex.org\/fr\/groupe-de-travail-sur-laccelerateur\/","title":{"rendered":"Groupe de travail sur l&rsquo;acc\u00e9l\u00e9rateur"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row unlock_row_content=\u00a0\u00bbyes\u00a0\u00bb row_height_percent=\u00a0\u00bb0&Prime; override_padding=\u00a0\u00bbyes\u00a0\u00bb h_padding=\u00a0\u00bb5&Prime; top_padding=\u00a0\u00bb5&Prime; bottom_padding=\u00a0\u00bb5&Prime; back_color=\u00a0\u00bbcolor-xsdn\u00a0\u00bb overlay_alpha=\u00a0\u00bb50&Prime; gutter_size=\u00a0\u00bb4&Prime; column_width_percent=\u00a0\u00bb100&Prime; shift_y=\u00a0\u00bb0&Prime; z_index=\u00a0\u00bb0&Prime; top_divider=\u00a0\u00bbgradient\u00a0\u00bb bottom_divider=\u00a0\u00bbgradient\u00a0\u00bb inverted_device_order=\u00a0\u00bbyes\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb304953&Prime; back_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb el_id=\u00a0\u00bbnotre-EDI-engagement-fr\u00a0\u00bb][vc_column column_width_percent=\u00a0\u00bb100&Prime; gutter_size=\u00a0\u00bb3&Prime; style=\u00a0\u00bbdark\u00a0\u00bb overlay_alpha=\u00a0\u00bb50&Prime; shift_x=\u00a0\u00bb0&Prime; shift_y=\u00a0\u00bb0&Prime; shift_y_down=\u00a0\u00bb0&Prime; z_index=\u00a0\u00bb0&Prime; medium_width=\u00a0\u00bb0&Prime; mobile_width=\u00a0\u00bb0&Prime; css_animation=\u00a0\u00bbalpha-anim\u00a0\u00bb animation_speed=\u00a0\u00bb1000&Prime; sticky=\u00a0\u00bbyes\u00a0\u00bb width=\u00a0\u00bb1\/4&Prime; uncode_shortcode_id=\u00a0\u00bb202619&Prime;][vc_single_image media=\u00a0\u00bb1512&Prime; media_width_percent=\u00a0\u00bb65&Prime; alignment=\u00a0\u00bbcenter\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb204129&Prime;][vc_row_inner row_inner_height_percent=\u00a0\u00bb0&Prime; overlay_alpha=\u00a0\u00bb50&Prime; gutter_size=\u00a0\u00bb4&Prime; shift_y=\u00a0\u00bb0&Prime; z_index=\u00a0\u00bb0&Prime; limit_content=\u00a0\u00bb\u00a0\u00bb][vc_column_inner column_width_percent=\u00a0\u00bb100&Prime; gutter_size=\u00a0\u00bb3&Prime; back_color=\u00a0\u00bbcolor-583231&Prime; overlay_alpha=\u00a0\u00bb50&Prime; radius=\u00a0\u00bbstd\u00a0\u00bb shadow=\u00a0\u00bbstd\u00a0\u00bb shift_x=\u00a0\u00bb0&Prime; shift_y=\u00a0\u00bb0&Prime; shift_y_down=\u00a0\u00bb0&Prime; z_index=\u00a0\u00bb0&Prime; medium_width=\u00a0\u00bb4&Prime; mobile_width=\u00a0\u00bb0&Prime; width=\u00a0\u00bb1\/1&Prime; uncode_shortcode_id=\u00a0\u00bb208346&Prime; back_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb][uncode_list larger=\u00a0\u00bbyes\u00a0\u00bb icon=\u00a0\u00bbfa fa-link3&Prime; icon_color=\u00a0\u00bbcolor-xsdn\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb120427&Prime; icon_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb el_class=\u00a0\u00bblist-floating-menu-colors\u00a0\u00bb]<\/p>\n<ul>\n<li><a href=\"#our-EDI-commitment-en\"><span style=\"color: #ffffff;\">Intro<\/span><\/a><\/li>\n<li><a href=\"#our-code-of-conduct-en\"><span style=\"color: #ffffff;\">Our Events<\/span><\/a><br \/>\n<mark><\/mark><\/li>\n<\/ul>\n<p>[\/uncode_list][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column column_width_percent=\u00a0\u00bb100&Prime; position_vertical=\u00a0\u00bbmiddle\u00a0\u00bb gutter_size=\u00a0\u00bb3&Prime; font_family=\u00a0\u00bbfont-613363&Prime; overlay_alpha=\u00a0\u00bb50&Prime; shift_x=\u00a0\u00bb0&Prime; shift_y=\u00a0\u00bb0&Prime; shift_y_down=\u00a0\u00bb0&Prime; z_index=\u00a0\u00bb0&Prime; medium_width=\u00a0\u00bb0&Prime; mobile_width=\u00a0\u00bb0&Prime; css_animation=\u00a0\u00bbalpha-anim\u00a0\u00bb animation_speed=\u00a0\u00bb1000&Prime; width=\u00a0\u00bb3\/4&Prime; uncode_shortcode_id=\u00a0\u00bb484410&Prime;][vc_custom_heading heading_semantic=\u00a0\u00bbh1&Prime; text_size=\u00a0\u00bbh3&Prime; uncode_shortcode_id=\u00a0\u00bb127427&Prime; el_id=\u00a0\u00bbintro-exa-atow-en\u00a0\u00bb]Bienvenue dans notre groupe de travail sur l&rsquo;acc\u00e9l\u00e9rateur[\/vc_custom_heading][vc_column_text text_lead=\u00a0\u00bbyes\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb177351&Prime;]De nos jours, 90 \u00e0 99 % des performances des machines \u00e0 grande \u00e9chelle proviennent des acc\u00e9l\u00e9rateurs.<br \/>\nComme ces derniers sont massivement multithread\u00e9s, ils n\u00e9cessitent la g\u00e9n\u00e9ration de binaires de calcul sp\u00e9cifiques qui exposent le parall\u00e9lisme massif<em>(noyaux<\/em>), et la gestion de l&rsquo;ex\u00e9cution concurrente entre les CPU g\u00e9n\u00e9riques et les acc\u00e9l\u00e9rateurs.<br \/>\nLa migration des applications existantes vers les acc\u00e9l\u00e9rateurs est donc un d\u00e9fi \u00e0 la fois essentiel et ambitieux.<br \/>\nLe groupe de travail \u00ab\u00a0Acc\u00e9l\u00e9rateurs\u00a0\u00bb du projet NumPEx a donc pour objectif d&rsquo;aider les d\u00e9veloppeurs d&rsquo;applications \u00e0 programmer de mani\u00e8re productive et \u00e0 exploiter efficacement les acc\u00e9l\u00e9rateurs.[\/vc_column_text][vc_column_text text_lead=\u00a0\u00bbyes\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb155761&Prime;]Dans les cas d&rsquo;application les plus favorables, il existe d\u00e9j\u00e0 des biblioth\u00e8ques qui fournissent les capacit\u00e9s de calcul dont les applications ont besoin. Par exemple, les op\u00e9rations BLAS habituelles sont g\u00e9n\u00e9ralement prises en charge par les fabricants d&rsquo;acc\u00e9l\u00e9rateurs eux-m\u00eames, et les op\u00e9rations d&rsquo;alg\u00e8bre lin\u00e9aire plus complexes avec prise en charge de plusieurs acc\u00e9l\u00e9rateurs peuvent \u00eatre prises en charge par des biblioth\u00e8ques tierces telles que Chameleon.<br \/>\nIl peut \u00e9galement exister des cadres complets permettant d&rsquo;exprimer le calcul souhait\u00e9 et de laisser une cha\u00eene de compilation g\u00e9n\u00e9rer des binaires pr\u00eats pour l&rsquo;acc\u00e9l\u00e9rateur.<br \/>\nDans de nombreux cas, cependant, les d\u00e9veloppeurs d&rsquo;applications doivent porter leur propre code source sur les acc\u00e9l\u00e9rateurs.<br \/>\nPour ce faire, ils peuvent programmer directement dans le langage fourni par le fabricant (CUDA\/HIP), au d\u00e9triment de la portabilit\u00e9, ou utiliser des approches de plus haut niveau telles que Kokkos ou OpenACC.<br \/>\nDans tous les cas, l&rsquo;ex\u00e9cution des noyaux de calcul r\u00e9sultants doit \u00eatre optimis\u00e9e en fonction du syst\u00e8me cibl\u00e9.<br \/>\nLes travaux du projet NumPEx comprennent une contribution \u00e0 plusieurs aspects :<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Soutien \u00e0 l&rsquo;acc\u00e9l\u00e9rateur pour les m\u00e9thodes num\u00e9riques et les algorithmes du projet<\/li>\n<li>Mod\u00e8les de programmation bas\u00e9s sur la composition pour les acc\u00e9l\u00e9rateurs<\/li>\n<li>G\u00e9n\u00e9ration du noyau optimis\u00e9e par le compilateur, g\u00e9n\u00e9rant diff\u00e9rentes variantes<\/li>\n<li>Gestion de l&rsquo;ex\u00e9cution des approches bas\u00e9es sur les t\u00e2ches pour optimiser l&rsquo;ex\u00e9cution<\/li>\n<li>Profilage et programmation de l&rsquo;\u00e9nergie<\/li>\n<li>Portabilit\u00e9 du d\u00e9ploiement de la version binaire r\u00e9sultante<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Le groupe de travail NumPEx Accelerator pr\u00e9voit les actions suivantes :<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Alimenter un appel \u00e0 projets pour compl\u00e9ter les contributions NumPEx<\/li>\n<li>Organiser des tutoriels sur les diff\u00e9rentes approches (en collaboration avec le groupe de travail sur la formation NumPEx et le CExA).<\/li>\n<li>Organiser des ateliers avec les fabricants pour v\u00e9rifier les propositions, les solutions et les feuilles de route.<\/li>\n<li>Organiser des ateliers sur les approches d&rsquo;optimisation bas\u00e9es sur la compilation<\/li>\n<li>Organiser des ateliers sur les approches de programmation<\/li>\n<li>Fournir des exemples de ports d&rsquo;application, sous forme de mini-applications, pour d\u00e9montrer des m\u00e9thodologies efficaces.<\/li>\n<li>Publier des documents d&rsquo;analyse pour d\u00e9crire la situation actuelle et justifier le portage d&rsquo;applications.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>[\/vc_column_text][vc_row_inner row_inner_height_percent=\u00a0\u00bb0&Prime; overlay_alpha=\u00a0\u00bb50&Prime; gutter_size=\u00a0\u00bb3&Prime; shift_y=\u00a0\u00bb0&Prime; z_index=\u00a0\u00bb0&Prime; limit_content=\u00a0\u00bb\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb144338&Prime; el_id=\u00a0\u00bbour-code-of-conduct-en\u00a0\u00bb][vc_column_inner width=\u00a0\u00bb1\/1&Prime;][vc_empty_space empty_h=\u00a0\u00bb2&Prime;][vc_separator sep_color=\u00a0\u00bbcolor-nhtu\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb794634&Prime; sep_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb][vc_empty_space empty_h=\u00a0\u00bb2&Prime;][vc_custom_heading heading_semantic=\u00a0\u00bbh1&Prime; text_size=\u00a0\u00bbh3&Prime; uncode_shortcode_id=\u00a0\u00bb164003&Prime;]Nos \u00e9v\u00e9nements[\/vc_custom_heading][\/vc_column_inner][\/vc_row_inner][vc_row_inner row_inner_height_percent=\u00a0\u00bb0&Prime; overlay_alpha=\u00a0\u00bb50&Prime; gutter_size=\u00a0\u00bb3&Prime; shift_y=\u00a0\u00bb0&Prime; z_index=\u00a0\u00bb0&Prime; limit_content=\u00a0\u00bb\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb144338&Prime; el_id=\u00a0\u00bbour-code-of-conduct-en\u00a0\u00bb][vc_column_inner width=\u00a0\u00bb1\/4&Prime;][vc_single_image media=\u00a0\u00bb1975&Prime; media_width_percent=\u00a0\u00bb100&Prime; uncode_shortcode_id=\u00a0\u00bb155580&Prime;][vc_button button_color=\u00a0\u00bbaccent\u00a0\u00bb border_width=\u00a0\u00bb0&Prime; link=\u00a0\u00bburl:https%3A%2F%2Fnumpex.org%2Ffr%2Fle-premier-atelier-du-groupe-de-travail-numpex-accelerator%2F|target:_blank|\u00a0\u00bb button_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb139229&Prime;]Voir les diapositives et l&rsquo;enregistrement disponibles [\/vc_button][\/vc_column_inner][vc_column_inner width=\u00a0\u00bb3\/4&Prime;][vc_custom_heading text_color=\u00a0\u00bbaccent\u00a0\u00bb heading_semantic=\u00a0\u00bbh3&Prime; uncode_shortcode_id=\u00a0\u00bb143843&Prime; text_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb]Journ\u00e9es programmation GPU &#8211; 12-13 juin 2024[\/vc_custom_heading][vc_empty_space empty_h=\u00a0\u00bb2&Prime;][vc_column_text uncode_shortcode_id=\u00a0\u00bb840038&Prime;]Les <sup>12<\/sup> et 13 juin 2024, le groupe a organis\u00e9 un atelier pour dresser un premier bilan de la situation actuelle :<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Nous avons d\u00e9crit les diff\u00e9rentes approches disponibles<\/li>\n<li>Nous avons recueilli les r\u00e9actions des programmeurs utilisant les diff\u00e9rentes approches<\/li>\n<li>Nous avons r\u00e9fl\u00e9chi aux contributions qui pourraient compl\u00e9ter les plans NumPEx existants, afin d&rsquo;alimenter un appel \u00e0 projets \u00ab\u00a0GPU\u00a0\u00bb.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row unlock_row_content=\u00a0\u00bbyes\u00a0\u00bb row_height_percent=\u00a0\u00bb0&Prime; 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