{"id":42117,"date":"2019-03-18T00:00:00","date_gmt":"2019-03-17T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/situatsiya-virtualnye-gpu-ne-ustupayut-po-proizvoditelnosti-zheleznym-resheniyam"},"modified":"2020-02-18T13:44:55","modified_gmt":"2020-02-18T10:44:55","slug":"situatsiya-virtualnye-gpu-ne-ustupayut-po-proizvoditelnosti-zheleznym-resheniyam","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/administrirovanie\/situatsiya-virtualnye-gpu-ne-ustupayut-po-proizvoditelnosti-zheleznym-resheniyam","title":{"rendered":"Situacija: virtualni GPU-i se ne oslanjaju na performanse hardverskih rje\u0161enja","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>U velja\u010di je na Stanfordu odr\u017eana konferencija posve\u0107ena visoko performativnim ra\u010dunalnim sistemima (HPC). Predstavnici VMware-a su izjavili da u radu s GPU-ovima sustav temeljen na modificiranom hipervizoru ESXi po brzini ne zaostaje za bare metal rje\u0161enjima.<\/p>\n<p>Govorit \u0107emo o tehnologijama koje su omogu\u0107ile postizanje ovih rezultata.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/it-grad\/blog\/443946\/\"><img decoding=\"async\" alt=\"Situacija: virtualni GPU-i se ne oslanjaju na performanse hardverskih rje\u0161enja\" src=\"\/wp-content\/uploads\/2019\/03\/5618dc11e259e374b3fcf9210bb12b59.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<i>\/ \u0444\u043e\u0442\u043e <noindex><a rel=\"nofollow\" href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Wikimedia_Foundation_Servers-8055_10.jpg\">Victorgrigas<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/3.0\/deed.en\">CC BY-SA<\/a><\/noindex><\/i><\/p>\n<h2>Problemi s performansama<\/h2>\n<p>\nPrema procjenama analiti\u010dara, oko 70% radnih optere\u0107enja u podatkovnim centrima <noindex><a rel=\"nofollow\" href=\"https:\/\/www.nextplatform.com\/2019\/02\/27\/making-performance-a-priority-with-virtualized-gpus\/\">je virtualizirano<\/a><\/noindex>. Me\u0111utim, preostalih 30% jo\u0161 uvijek radi na bare metal bez hipervizora. Ovih 30% ve\u0107inom se sastoji od visoko optere\u0107enih aplikacija, povezanih, na primjer, sa obukom neuronskih mre\u017ea, i koriste grafi\u010dke procesore.<\/p>\n<p>Ekspeti obja\u0161njavaju ovakav trend time da hipervizor kao me\u0111usloj apstrakcije mo\u017ee utjecati na performanse cijelog sustava. U istra\u017eivanjima starim pet godina <noindex><a rel=\"nofollow\" href=\"https:\/\/isi.edu\/~mkkang\/papers\/Cloud_2014.pdf\">mogu se prona\u0107i podaci<\/a><\/noindex> o smanjenju brzine rada za 10%. Stoga kompanije i operateri podatkovnih centara ne \u017eure s prijelazom HPC optere\u0107enja u virtualno okru\u017eenje.<\/p>\n<p>No, tehnologije virtualizacije se razvijaju i usavr\u0161avaju. Na konferenciji prije mjesec dana, VMware je izvijestio da hipervizor ESXi ne utje\u010de negativno na performanse GPU-a. Brzina izra\u010duna mo\u017ee se smanjiti za tri posto, \u0161to je usporedivo s rezultatima bare metal.<\/p>\n<h2>Kako to funkcionira<\/h2>\n<p>\nKako bi se pobolj\u0161ale performanse HPC sustava s grafi\u010dkim procesorima, VMware je u rad hipervizora uveo niz promjena. Konkretno, oslobodili su ga od funkcije vMotion. Ova funkcija je potrebna za balansiranje optere\u0107enja i obi\u010dno premje\u0161ta virtualne ma\u0161ine (VM) izme\u0111u poslu\u017eitelja ili GPU-a. Isklju\u010divanje vMotion-a rezultiralo je time da je sada svaka VM povezana s odre\u0111enim grafi\u010dkim procesorom. To je pomoglo u smanjenju tro\u0161kova prilikom razmjene podataka.<\/p>\n<p>Druga klju\u010dna komponenta sustava <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.vmware.com\/en\/VMware-vSphere\/6.7\/com.vmware.vsphere.networking.doc\/GUID-BF2770C3-39ED-4BC5-A8EF-77D55EFE924C.html\">je tehnologija<\/a><\/noindex> DirectPath I\/O. Omogu\u0107uje CUDA drajveru za paralelne izra\u010dune izravnu interakciju s virtualnim ma\u0161inama, zaobilaze\u0107i hipervizor. Kada je potrebno pokrenuti nekoliko VM na jednom GPU-u, koristi se rje\u0161enje GRID vGPU. Ono dijeli memoriju kartice na nekoliko segmenata (ali se prora\u010dunski ciklusi pritom ne dijele).<\/p>\n<p>Shema rada dviju virtualnih ma\u0161ina u ovom slu\u010daju izgledat \u0107e ovako:<\/p>\n<p><img decoding=\"async\" alt=\"Situacija: virtualni GPU-i se ne oslanjaju na performanse hardverskih rje\u0161enja\" src=\"\/wp-content\/uploads\/2019\/03\/5e1edef302889fc18b14fe097c6d560b.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<h2>Rezultati i prognoze<\/h2>\n<p>\nTvrtka <noindex><a rel=\"nofollow\" href=\"http:\/\/on-demand.gputechconf.com\/gtc\/2018\/presentation\/s8249-machine-learning-on-vmware-vsphere-using-nvidias-virtualized-gpus.pdf\">provela je testove<\/a><\/noindex> hipervizora, obu\u010div\u0161i jezi\u010dni model temeljen na <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/TensorFlow\">TensorFlow<\/a><\/noindex>. \u201eGubitak\u201c performansi iznosio je samo 3\u20134%, u usporedbi s bare metalom. U tom procesu sustav je osvojio mogu\u0107nost raspodjele resursa prema zahtjevu ovisno o trenutnim optere\u0107enjima.<\/p>\n<p>IT div tako\u0111er <noindex><a rel=\"nofollow\" href=\"https:\/\/blogs.vmware.com\/apps\/2018\/08\/sharing-nvidia-gpus-in-singularity-hpc-containers-leveraging-vsphere.html\">provodio testove<\/a><\/noindex> s kontejnerima. In\u017eenjeri tvrtke obu\u010davali su neuronske mre\u017ee prepoznavati slike. Pri tome su resurse jednog grafi\u010dkog procesora raspodijelili izme\u0111u \u010detiri kontejnerske VM. Kao rezultat, performanse pojedinih ma\u0161ina smanjene su za 17% (u usporedbi s jednom VM koja ima potpuni pristup resursima GPU-a). Me\u0111utim, broj obra\u0111enih slika po sekundi <noindex><a rel=\"nofollow\" href=\"http:\/\/3s81si1s5ygj3mzby34dq6qf-wpengine.netdna-ssl.com\/wp-content\/uploads\/2019\/02\/VMware-ML-throughput-results.png\">porastao<\/a><\/noindex> pove\u0107ao se tri puta. O\u010dekuje se da \u0107e takvi sustavi <noindex><a rel=\"nofollow\" href=\"https:\/\/blogs.vmware.com\/vsphere\/2018\/10\/machine-learning-with-gpus-on-vsphere.html\">prona\u0107i<\/a><\/noindex> primjenu u podru\u010dju analize podataka i ra\u010dunalnog modeliranja.<\/p>\n<p>Me\u0111u potencijalnim problemima s kojima se VMware mo\u017ee suo\u010diti, stru\u010dnjaci <noindex><a rel=\"nofollow\" href=\"https:\/\/www.nextplatform.com\/2019\/02\/27\/making-performance-a-priority-with-virtualized-gpus\/\">isti\u010du<\/a><\/noindex> imaju prili\u010dno usku ciljnu publiku. S visokou\u010dinkovitim sustavima zasad radi mali broj tvrtki. Iako u Statista <noindex><a rel=\"nofollow\" href=\"https:\/\/www.statista.com\/statistics\/227284\/share-of-global-cloud-data-center-workloads-development\/\">napominju<\/a><\/noindex>, do 2021. godine virtualizirano \u0107e biti ve\u0107 94% radnih optere\u0107enja na globalnim podatkovnim centrima. Prema <noindex><a rel=\"nofollow\" href=\"https:\/\/www.marketsandmarkets.com\/PressReleases\/Quantum-High-Performance-Computing.asp\">prognozama<\/a><\/noindex> analiti\u010darima, vrijednost HPC tr\u017ei\u0161ta porast \u0107e s 32 na 45 milijardi dolara u razdoblju od 2017. do 2022. godine.<\/p>\n<p><img decoding=\"async\" alt=\"Situacija: virtualni GPU-i se ne oslanjaju na performanse hardverskih rje\u0161enja\" src=\"\/wp-content\/uploads\/2019\/03\/d74d9df5b6e7957aa7b4990408d0eb7f.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>\/ \u0444\u043e\u0442\u043e <noindex><a rel=\"nofollow\" href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Inside_Suite.jpg\">Global Access Point<\/a><\/noindex> PD<\/i><\/p>\n<h2>Sli\u010dna rje\u0161enja<\/h2>\n<p>\nNa tr\u017ei\u0161tu postoji nekoliko analoga koje razvijaju velike IT tvrtke: AMD i Intel.<\/p>\n<p>Prva tvrtka za virtualizaciju grafi\u010dkih procesora <noindex>nudi<\/noindex> pristup temeljen na SR-IOV (single-root input\/output virtualization). Ova tehnologija omogu\u0107uje VM pristup dijelu hardverskih mogu\u0107nosti sustava. Rje\u0161enje omogu\u0107uje dijeljenje grafi\u010dkog procesora me\u0111u 16 korisnika pri jednakim performansama virtualiziranih sustava.<\/p>\n<p>\u0160to se ti\u010de drugog IT diva, njihova <noindex><a rel=\"nofollow\" href=\"https:\/\/www.intel.com\/content\/www\/us\/en\/solution-providers\/documents\/intel-citrix-xendesktop-virtualized-graphics-brief.html\">tehnologija se temelji<\/a><\/noindex> na hipervizoru Citrix XenServer 7. Ona objedinjuje rad standardnog GPU upravlja\u010dkog programa i virtualne ma\u0161ine, \u0161to posljednjoj omogu\u0107uje prikazivanje 3D aplikacija i radnih povr\u0161ina na ure\u0111ajima stotina korisnika.<\/p>\n<h2>Budu\u0107nost tehnologije<\/h2>\n<p>\nRazvijatelji virtualnih grafi\u010dkih procesora <noindex><a rel=\"nofollow\" href=\"https:\/\/www.networkworld.com\/article\/3197846\/nvidia-gives-glimpse-of-the-future-at-its-gpu-technology-conference.html\">oslanjaju se<\/a><\/noindex> na implementaciju AI sustava i rast popularnosti visokou\u010dinkovitih rje\u0161enja na tr\u017ei\u0161tu poslovnih tehnologija. Nadaju se da \u0107e potreba za obradom velikih koli\u010dina podataka pove\u0107ati potra\u017enju za vGPU.<\/p>\n<p>Trenutno proizvo\u0111a\u010di <noindex><a rel=\"nofollow\" href=\"https:\/\/searchservervirtualization.techtarget.com\/tip\/GPU-virtualization-evolves-with-new-chip-types-on-the-horizon\">tra\u017ee na\u010din<\/a><\/noindex> kombinirati funkcionalnost CPU-a i GPU-a u jednoj jezgri kako bi se ubrzalo rje\u0161avanje zadataka povezanih s grafikom, izvr\u0161avanje matemati\u010dkih prora\u010duna, logi\u010dkih operacija i obradom podataka. Pojava takvih jezgri na tr\u017ei\u0161tu u budu\u0107nosti izmijenit \u0107e pristup virtualizaciji resursa i njihovoj distribuciji me\u0111u radnim optere\u0107enjima u virtualnom i obla\u010dnom okru\u017eenju.<\/p>\n<p>\n\u0160to pro\u010ditati o temi u na\u0161em korporativnom blogu:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/tendencii\/pochemu-korporativnye-zakazchiki-ispolzuyut-virtualnye-mashiny-a-ne-kontejnery\/\">Za\u0161to tvrtke koriste virtualne strojeve umjesto kontejnera<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/novosti\/kak-dela-u-vmware-obzor-novyx-reshenij\/\">\u00abKako su VMware-u\u00bb: pregled novih rje\u0161enja<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/funkcionalnost\/novaya-funkcionalnost-v-vmware-vsphere-6-7\/\">VMware vSphere 6.7: kako su nove funkcije hipervizora korisne<\/a><\/noindex><\/li>\n<\/ul>\n<p>\nPar postova iz na\u0161eg Telegram kanala:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/187\">IT arhitektura budu\u0107nosti \u2014 tko se priprema za nju i kako<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/195\">5 alata za upravljanje oblakom<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/194\">Kako IaaS pru\u017eatelj \u0161titi podatke klijenata<\/a><\/noindex><\/li>\n<\/ul>\n<p>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/it-grad\/blog\/443946\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0444\u0435\u0432\u0440\u0430\u043b\u0435 \u0432 \u0421\u0442\u044d\u043d\u0444\u043e\u0440\u0434\u0435 \u043f\u0440\u043e\u0448\u043b\u0430 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u044f, \u043f\u043e\u0441\u0432\u044f\u0449\u0451\u043d\u043d\u0430\u044f \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u044f\u043c (HPC). \u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u0442\u0435\u043b\u0438 VMware \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u043b\u0438, \u0447\u0442\u043e \u043f\u0440\u0438 \u0440\u0430\u0431\u043e\u0442\u0435 \u0441 GPU \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u043d\u0430 \u0431\u0430\u0437\u0435 \u043c\u043e\u0434\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 ESXi \u043f\u043e \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u0438 \u043d\u0435 \u0443\u0441\u0442\u0443\u043f\u0430\u0435\u0442 bare metal \u0440\u0435\u0448\u0435\u043d\u0438\u044f\u043c. \u0420\u0430\u0441\u0441\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u043c \u043e \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u044f\u0445, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u043b\u0438 \u044d\u0442\u043e\u0433\u043e \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f. \/ \u0444\u043e\u0442\u043e Victorgrigas CC BY-SA \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u041f\u043e \u043e\u0446\u0435\u043d\u043a\u0430\u043c \u0430\u043d\u0430\u043b\u0438\u0442\u0438\u043a\u043e\u0432, \u043f\u043e\u0440\u044f\u0434\u043a\u0430 70% \u0440\u0430\u0431\u043e\u0447\u0438\u0445 \u043d\u0430\u0433\u0440\u0443\u0437\u043e\u043a \u0432 \u0434\u0430\u0442\u0430-\u0446\u0435\u043d\u0442\u0440\u0430\u0445 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u044b. [&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":[688],"tags":[],"class_list":["post-42117","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u0444\u0435\u0432\u0440\u0430\u043b\u0435 \u0432 \u0421\u0442\u044d\u043d\u0444\u043e\u0440\u0434\u0435 \u043f\u0440\u043e\u0448\u043b\u0430 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u044f, \u043f\u043e\u0441\u0432\u044f\u0449\u0451\u043d\u043d\u0430\u044f \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u044f\u043c 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