{"id":115974,"date":"2024-05-21T14:59:30","date_gmt":"2024-05-21T12:59:30","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/proekt-bend-razvivaet-vysokourovnevyj-yazyk-dlya-parallelnyh-vychislenij-na-gpu"},"modified":"2024-05-21T14:59:30","modified_gmt":"2024-05-21T12:59:30","slug":"proekt-bend-razvivaet-vysokourovnevyj-yazyk-dlya-parallelnyh-vychislenij-na-gpu","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/proekt-bend-razvivaet-vysokourovnevyj-yazyk-dlya-parallelnyh-vychislenij-na-gpu","title":{"rendered":"Il progetto Bend sviluppa un linguaggio di alto livello per il calcolo parallelo su GPU","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Sono stati pubblicati i primi rilasci del progetto Bend, che sviluppa un linguaggio di programmazione di alto livello per il calcolo parallelo, posizionato come alternativa ai linguaggi di basso livello come CUDA e Metal, con una sintassi espressiva e funzionalit\u00e0 per migliorare la comodit\u00e0 di sviluppo, tipiche di linguaggi come Python e Haskell. Il codice del progetto \u00e8 scritto in Rust e distribuito con licenza Apache 2.0.          <\/p>\n<p>Tra le caratteristiche del linguaggio Bend si notano la rapida distribuzione degli oggetti, la possibilit\u00e0 di utilizzare funzioni di ordine superiore, chiusure, continuazioni, ricorsione illimitata, corrispondenza con modelli, corrispondenze ricorsive (fold) e cicli (bend), oltre a tipi interi, stringhe e liste. Sono supportate due varianti di sintassi \u2014 in stile Python e in stile Haskell. Nei programmi non \u00e8 necessario specificare annotazioni di parallelizzazione, creare esplicitamente thread o gestire i lock. La parallelizzazione avviene automaticamente; ad esempio, nell'espressione '((1 + 2) + (3 + 4))', le operazioni '1 + 2' e '3 + 4' verranno eseguite in parallelo.     <\/p>\n<p> I programmi scritti in Bend possono essere eseguiti su hardware che offre parallelismo massiccio, ad esempio su GPU, mostrando un incremento praticamente lineare delle prestazioni in base al numero di unit\u00e0 di calcolo. Il codice in Bend viene compilato in una rappresentazione intermedia a basso livello HVM2 (Higher-order Virtual Machine 2), che viene poi compilata nella rappresentazione in C e CUDA. Attualmente, il progetto supporta solo l'esecuzione su GPU NVIDIA.           <\/p>\n<p>Per quanto riguarda le prestazioni, l'applicazione di prova con implementazione dell'ordinamento bitonale ha impiegato 12,15 secondi su un singolo thread della CPU Apple M3 Max, 0,96 secondi utilizzando 16 thread, e 0,21 secondi coinvolgendo la GPU NVIDIA RTX 4090 con 16k thread. def sort(d, s, tree): switch d: case 0: return tree case _: (x,y) = tree lft = sort(d-1, 0, x) rgt = sort(d-1, 1, y) return rots(d, s, lft, rgt) def rots(d, s, tree): switch d: case 0: return tree case _: (x,y) = tree return down(d, s, warp(d-1, s, x, y)) \u2026<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61224\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043f\u0435\u0440\u0432\u044b\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Bend, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0432\u044b\u0441\u043e\u043a\u043e\u0443\u0440\u043e\u0432\u043d\u0435\u0432\u044b\u0439 \u044f\u0437\u044b\u043a \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u043b\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u044b\u0445 \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u0439, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u0430 \u043d\u0438\u0437\u043a\u043e\u0443\u0440\u043e\u0432\u043d\u0435\u0432\u044b\u043c\u0438 \u044f\u0437\u044b\u043a\u0430\u043c, \u0442\u0430\u043a\u0438\u043c \u043a\u0430\u043a CUDA \u0438 Metal, \u043e\u0431\u043b\u0430\u0434\u0430\u044e\u0449\u0430\u044f \u0432\u044b\u0440\u0430\u0437\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441\u043e\u043c \u0438 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044f\u043c\u0438 \u0434\u043b\u044f \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u044f \u0443\u0434\u043e\u0431\u0441\u0442\u0432\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438, \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u043c\u0438 \u0442\u0430\u043a\u0438\u043c \u044f\u0437\u044b\u043a\u0430\u043c, \u043a\u0430\u043a Python \u0438 Haskell. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 Apache 2.0. \u0418\u0437 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439 \u044f\u0437\u044b\u043a\u0430 Bend [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-115974","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043f\u0435\u0440\u0432\u044b\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Bend, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e 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