{"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\/et\/blog\/novosti-interneta\/proekt-po-dobavleniyu-v-gcc-podderzhki-rasparallelivaniya-protsessa-kompilyatsii","title":{"rendered":"GCC-s t\u00f6\u00f6tava paralelleerimise toe lisamise projekt","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Uuringuprojekti raames Paralleelne GCC<\/a><\/noindex> on alustatud GCC v\u00f5imekuse lisamisega, mis v\u00f5imaldab jagada kompileerimisprotsessi mitmeks paralleelselt t\u00f6\u00f6tavaks l\u00f5imikuks. Praegu kasutatakse ehituskiiruse t\u00f5stmiseks mitme tuumaga s\u00fcsteemides eraldiseisvate kompilaatori protsesside k\u00e4ivitamist make utiliidi tasandil, kus iga protsess kompileerib eraldi koodifaili. Uus projekt katsetab kompilaatori tasemel paralleelset t\u00f6\u00f6tlemist, mis v\u00f5ib potentsiaalselt suurendada efektiivsust mitme tuumaga s\u00fcsteemides. <\/p>\n

Testimiseks valmistatud<\/a><\/noindex> eralne paraleelne GCC haru, millele on uue parameetriga «—param=num-threads=N» m\u00e4\u00e4ratud l\u00f5ime arv. Algstaadiumis on rakendatud eraldi t\u00e4itmisprotsesside loomine, mis k\u00e4sitleb protseduuride vahelisi optimeerimisi, mis kutsutakse iga funktsiooni jaoks v\u00e4lja ts\u00fckliliselt ja mille paralleelset t\u00f6\u00f6tlemist on lihtne teostada. Eraldi parema optimeerimise jaoks on v\u00e4lja toodud GIMPLE operatsioonid, mis vastutavad seadme s\u00f5ltumatute optimeerimiste eest, hinnates funktsioonide vastastikust m\u00f5ju.<\/p>\n

J\u00e4rgmises etapis kavatsetakse eraldi protsessidesse viia ka vaheprotseduuride RTL-optimeerimised, mis arvestavad riistvaraplatvormi erip\u00e4rasid. P\u00e4rast seda plaanitakse ellu viia ka sisep\u00f5histe optimeerimiste (IPA) paralelleerimine, mis rakendatakse koodi sees, s\u00f5ltumatult kutse erip\u00e4radest. Praegune kitsaskohaks on pr\u00fcgikoguja, millele on lisatud globaalne lukustus, mis keelab pr\u00fcgikogumise toimingud mitme l\u00f5ime re\u017eiimis t\u00f6\u00f6tamise ajal (tulevikus kohandatakse pr\u00fcgikoguja mitu l\u00f5ime GCC jaoks).<\/p>\n

J\u00f5udluse muutuse hindamiseks on koostatud testikomplekt, mis kogub gimple-match.c faili, mis sisaldab \u00fcle 100 000 koodi rea ja 1700 funktsiooni. Testid s\u00fcsteemis, millel on CPU Intel Core i5-8250U koos 4 f\u00fc\u00fcsilise ja 8 virtuaalse (Hyperthreading) tuumaga, n\u00e4itasid, et Intra Procedural GIMPLE optimeerimiste t\u00e4itmise aeg v\u00e4henes 7 sekundilt 4 sekundile kahe voolu k\u00e4itamisel ja 3 sekundile nelja voolu k\u00e4itamisel, mis t\u00e4hendab, et arvestatava kogumise etapi kiirus t\u00f5usis vastavalt 1,72 ja 2,52 korda. Testid n\u00e4itasid ka, et virtuaalsete tuumade kasutamine Hyperthreading'i puhul ei suurenda j\u00f5udlust. <\/p>\n

\"GCC-s<\/center><\/p>\n

Koguaeg, mis kulus kogumisele, l\u00fchenes umbes 10%, kuid prognooside kohaselt v\u00f5imaldab RTL-optimeerimiste paralleelimine saavutada m\u00e4rkimisv\u00e4\u00e4rsemaid tulemusi, kuna see etapp v\u00f5tab kompileerimisel oluliselt rohkem aega. Eeldatavalt l\u00fcheneb koguaeg p\u00e4rast RTL-i paralleelimist 1,61 korda. Selle j\u00e4rel saab veel 5-10% v\u00f5rra v\u00e4hendada kogumisaega IPA optimeerimiste paralleelimise arvelt.<\/p>\n

\"GCC-s<\/center><\/p>\n

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

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

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Praegu, et suurendada koostamiskiirus mitme tuumaga s\u00fcsteemides, kasutatakse utiliidi make tasemel eraldi kompilaatoriprotsesside k\u00e4ivitamist, millest iga\u00fcks koostab eraldi koodifaili. Uus projekt katsetab tagamise...","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/proekt-po-dobavleniyu-v-gcc-podderzhki-rasparallelivaniya-protsessa-kompilyatsii","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041f\u0440\u043e\u0435\u043a\u0442 \u043f\u043e \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044e \u0432 GCC \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0440\u0430\u0441\u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u0438\u0432\u0430\u043d\u0438\u044f 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