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Computação de alto Desempenho. Evolução do poder de processamento. Evolução do poder de processamento. Since the advent of the computer in 1940, computing power needs have not ceased to increase . Today , great scientific fields such as
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Computação de alto Desempenho Evolução do poder de processamento
Evolução do poder de processamento • Sincetheadventofthecomputer in 1940, computingpowerneeds • havenotceasedtoincrease. Today, greatscientificfieldssuch as • high-energyphysics, astrophysics, climatology, biologyand medical • imageryrelyon new mutualizationtechnologiesandworldwidesharing • ofcomputerpotentialacrossinternational grids tomeetthehuge • demand for data processing.
Áreas com demandas de HPC • Everyday, researcherssubmithundreds • ofcomputationstolarge-scaledistributedinfrastructuressuch as • theEuropeanEnabling Grids for E-sciencE grid (EGEE) whichgathers more than 100,000 processors. • SoonEuropean Grid • Infrastructure (EGI) andTeraGridin the United Stateswill • eachbeabletoaggregate more thandoublethisnumberof processors.
In thenear future many industrial domains, such as automobile, energyandtransport, which are increasinglyrelyingon digital simulation, willbeabletobenefitfromlargesharedreservoirsofcomputerresources. • This approach willshortlybeextendedto e-commerce, financeandtheleisureindustry.
Clusters, Grids & Clouds • Over thepast 15 years, threekeytechnologieshavefollowedeach • other in response tothisgrowingcomputingpowerdemand. These • technologiesembodytherevolutionof network computing: • computer clusters, • computing grids • andcomputingclouds.
Clusters • a computing cluster is a collectionof PCs interconnectedvia local-area, very-low-latency, high-speed networks;
Grids • a computing grid istheaggregationof a verylargenumber • ofdistributedcomputingand storage resources, interconnected via • wide-area networks. There are computing grids dedicatedtointensive • computationsof data grids thatstore, processandgiveaccesstomassive • amountsof data in theorderofhundredsof gigabytes orevenseveral • terabytes;
Clouds • – a computingcloudprovidesaccessservicestoresources via • the Internet. The underlyinginfrastructureistotallyconcealedfrom • users. The availableresources are generally virtual machineshoused • in resource centers, alsocalled data centers.
Originally, it wasthespectacularadvances in transmissionand • communication technologiesthatenabledresearchersto imagine these • distributedarchitectures. Thesetechnologiesmadetheaggregation • andmutualizationofcomputerequipmentpossible, whichledtothe • rise in powerof global computing.
The hardware and software of • interconnection networks, which are transparent in appearance, play a • complex role thatisdifficulttograspandnotoftenstudied. Yetthe • placeofthe network is central and its evolutionwillcertainlybe a key • toubiquitouscomputer systems to come.