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1、Us$1,000:ValUeofUNclaIMedchaMpagNeofferedtoaNyIBMeNgINeerwhocoUldfINdaBUgINthetrUeNorthchIpNeuromorphiccomputerchipsmeanttomimictheneuralIBM’snetworkarchitectureofbiologicalbrainshavegenerallyfallenshortoftheirwetwarecounterpartsinefficiency—acrucialfacto
2、rthathaslimitedpracticalapplicationsforsuchchips.Thatcouldbechanging.NewBraINAtapowerdensityofjust20milliwattspersquarecentimeter,IBM’snewbrain-inspiredchip[above]comestantalizinglyclosetosuchwetwareTheTrueNorthneuromorphicefficiency.Thehopeisthatitcouldb
3、ringbrainlikeintelligencetothesen-chiptakesabigstepsorsofsmartphones,smartcars,and—ifIBMhasitsway—everythingelse.towardusingthehumanThelatestIBMneurosynapticcomputerchip,calledTrueNorth,con-brain’sarchitecturetosistsof1millionprogrammableneuronsand256mill
4、ionprogrammablereducecomputing’spowersynapsesconveyingsignalsbetweenthedigitalneurons.Eachofthechip’sconsumption4,096neurosynapticcoresincludestheentirecomputingpackage:memory,computation,andcommunication.Sucharchitecturehelpstobypassthebottleneckintradit
5、ionalvonNeumanncomputing,whereprograminstruc-tionsandoperationdatacannotpassthroughthesameroutesimultaneously.“Thisisliterallyasupercomputerthesizeofapostagestamp,lightlikeaIBMfeather,andlowpowerlikeahearingaid,”saysDharmendraModha,IBMSPECTRUM.IEEE.ORG
6、nO
7、RThaMERICan
8、OCT2014
9、1710.News.NA.indd179/15/141:12PMfellowandchiefscientistforbrain-inspiredcom-BIg-BraINchIpsputingatIBMResearch-Almaden,inSanJose,Calif.Suchchipscanemulatethehumanbrain’strueNorthIBM,DARPASyNAPSEabilitytorecognizedifferentobjectsinrealti
10、me;projectfeatureschipspecslargestcurrentconfigurationpowerdensityTrueNorthshoweditcoulddistinguishamongLow-powerpedestrians,bicyclists,cars,andtrucks.IBMneuromorphic16millionchipdesignedfor1millionneuronsenvisionsitsnewchipsworkingtogetherwithapplication
11、sinneurons1620chipstraditionalcomputingdevicesashybridma-mobilesensors,256million4billionmW/cm2cloudcomputing,synapseschines,providingadoseofbrainlikeintelligence.synapsesandsoon.Thechip’sarchitecture,developedtoget
