{"id":38137,"date":"2019-10-31T22:21:53","date_gmt":"2019-10-31T19:21:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/proekt-po-dobavleniyu-v-gcc-podderzhki-rasparallelivaniya-protsessa-kompilyatsii\/"},"modified":"2019-10-31T22:21:53","modified_gmt":"2019-10-31T19:21:53","slug":"proekt-po-dobavleniyu-v-gcc-podderzhki-rasparallelivaniya-protsessa-kompilyatsii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/proekt-po-dobavleniyu-v-gcc-podderzhki-rasparallelivaniya-protsessa-kompilyatsii","title":{"rendered":"Projekti p\u00ebr shtimin e mb\u00ebshtetjes s\u00eb paralelizimit t\u00eb procesit t\u00eb kompilimit n\u00eb GCC","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

N\u00eb kuad\u00ebr t\u00eb projektit k\u00ebrkimor Parallel GCC<\/a><\/noindex> ka filluar puna p\u00ebr t\u00eb shtuar n\u00eb GCC nj\u00eb mund\u00ebsi q\u00eb lejon ndarjen e procesit t\u00eb kompilimit n\u00eb disa rrjedha q\u00eb ekzekutohen paralelisht. N\u00eb k\u00ebt\u00eb moment, p\u00ebr t\u00eb rritur shpejt\u00ebsin\u00eb e nd\u00ebrtimit n\u00eb sistemet me shum\u00eb b\u00ebrthama, n\u00eb nivelin e utilitarit make, p\u00ebrdoret nisja e proceseve t\u00eb ve\u00e7anta t\u00eb kompilatorit, secili prej t\u00eb cil\u00ebve kryen nd\u00ebrtimin e nj\u00eb skedari t\u00eb ve\u00e7ant\u00eb t\u00eb kodit. Projekti i ri eksperimenton me sigurimin e parallelizimit n\u00eb nivelin e kompilatorit, \u00e7ka potencialisht do t\u00eb lejoj\u00eb rritjen e efikasitetit t\u00eb pun\u00ebs n\u00eb sistemet me shum\u00eb b\u00ebrthama. <\/p>\n

P\u00ebr testim \u00ebsht\u00eb p\u00ebrgatitur<\/a><\/noindex> nj\u00eb deg\u00eb e ve\u00e7ant\u00eb e GCC p\u00ebr paralelizimin, ku \u00ebsht\u00eb propozuar nj\u00eb parametr i ri «—param=num-threads=N» p\u00ebr t\u00eb p\u00ebrcaktuar numrin e nyjeve. N\u00eb faz\u00ebn fillestare, jan\u00eb implementuar optimizime nd\u00ebrprocedurale q\u00eb ekzekutohen n\u00eb nyje t\u00eb ve\u00e7anta, t\u00eb cilat thirren n\u00eb m\u00ebnyr\u00eb ciklike p\u00ebr \u00e7do funksion dhe p\u00ebrshtaten mir\u00eb p\u00ebr paralelizim. Operacionet GIMPLE, t\u00eb cilat p\u00ebrgjigjen p\u00ebr optimizimet jo t\u00eb varura nga pajisja dhe vler\u00ebsojn\u00eb nd\u00ebrveprimin nd\u00ebrmjet funksioneve, jan\u00eb t\u00ebrhequr n\u00eb nyje t\u00eb ve\u00e7anta.<\/p>\n

N\u00eb faz\u00ebn e ardhshme, \u00ebsht\u00eb planifikuar gjithashtu q\u00eb t\u00eb kalohen n\u00eb rrjedha t\u00eb ve\u00e7anta optimizimet RTL nd\u00ebrprocedurale, t\u00eb cilat marrin parasysh karakteristikat e platform\u00ebs harduerike. Pas k\u00ebsaj, planifikohet t\u00eb realizohet parallelizimi i optimizimeve brendaprocedurale (IPA), t\u00eb aplikuara n\u00eb kodin brenda funksionit, pavar\u00ebsisht karakteristikave t\u00eb thirrjes. Nj\u00eb faktor limitues deri tani \u00ebsht\u00eb mbledh\u00ebsi i plehrave, n\u00eb t\u00eb cilin \u00ebsht\u00eb shtuar nj\u00eb bllokim global, q\u00eb \u00e7aktivizon operacionet e mbledhjes s\u00eb plehrave gjat\u00eb pun\u00ebs n\u00eb m\u00ebnyr\u00eb shum\u00ebrrjedh\u00ebshe (n\u00eb t\u00eb ardhmen, mbledh\u00ebsi i plehrave do t\u00eb adaptohet p\u00ebr ekzekutimin shum\u00ebrrjedh\u00ebshe t\u00eb GCC).<\/p>\n

P\u00ebr vler\u00ebsimin e ndryshimit t\u00eb performanc\u00ebs \u00ebsht\u00eb p\u00ebrgatitur nj\u00eb grup testesh, q\u00eb realizon nd\u00ebrtimin e skedarit gimple-match.c, i cili p\u00ebrfshin mbi 100 mij\u00eb rreshta kodi dhe 1700 funksione. Testet n\u00eb nj\u00eb sistem me CPU Intel Core i5-8250U me 4 b\u00ebrthama fizike dhe 8 virtuale (Hyperthreading) treguan nj\u00eb ulje t\u00eb koh\u00ebs s\u00eb ekzekutimit t\u00eb optimizimeve Intra Procedural GIMPLE nga 7 n\u00eb 4 sekonda me nisjen e 2 rrjedhave dhe n\u00eb 3 sekonda me nisjen e 4 rrjedhave, dmth, u arrit rritja e shpejt\u00ebsis\u00eb n\u00eb k\u00ebt\u00eb faz\u00eb t\u00eb nd\u00ebrtimit me 1.72 dhe 2.52 her\u00eb, p\u00ebrkat\u00ebsisht. Testet gjithashtu treguan se p\u00ebrdorimi i b\u00ebrthamave virtuale gjat\u00eb Hyperthreading nuk shkakton rritje t\u00eb performanc\u00ebs. <\/p>\n

\"Projekti<\/center><\/p>\n

Koha e p\u00ebrgjithshme e nd\u00ebrtimit u reduktua p\u00ebraf\u00ebrsisht me 10%, por sipas parashikimeve, paralelizimi i optimizimeve RTL do t\u00eb mund\u00ebsoj\u00eb rezultate m\u00eb t\u00eb dukshme, pasi ky faz\u00eb merr ndjesh\u00ebm m\u00eb shum\u00eb koh\u00eb gjat\u00eb kompaktimit. P\u00ebraf\u00ebrsisht pas paralelizimit t\u00eb RTL, koha e p\u00ebrgjithshme e nd\u00ebrtimit do t\u00eb reduktohet me 1.61 her\u00eb. Pas k\u00ebsaj, koha e nd\u00ebrtimit mund t\u00eb reduktohet me 5-10% t\u00eb tjera p\u00ebrmes paralelizimit t\u00eb optimizimeve IPA.<\/p>\n

\"Projekti<\/center><\/p>\n

<\/a><\/noindex><\/p>\n

Burimi: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u043a\u043e\u0434\u043e\u043c. \u041d\u043e\u0432\u044b\u0439 \u043f\u0440\u043e\u0435\u043a\u0442 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0438\u0440\u0443\u0435\u0442 \u0441 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u0435\u043c […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":28626,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-38137","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47 Projekti p\u00ebr shtimin e mb\u00ebshtetjes p\u00ebr paralelizimin e procesit t\u00eb kompaktimit n\u00eb GCC | 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