WD西部数据Technical Brief Benchmarking GPUDirect and the Western Digital OpenFlex Data24 NVMe-oF Storage Platform (4200 Series)数据中心平台English (US)技术简介.pdf

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TechnicalBrief

NVIDIAeGPUDirecteStorage

BenchmarkingGPUDirectandtheWesternDigitalOpenFlexData244200Series

NVMe-oFStoragePlatform

TheFutureofMemoryandStorage(FMS)2024-TornadoDemonstration

Abstract

Thispaperdemonstratesthearchitecturalviabilityofhigh-performancedisaggregatedstorageinfrastructureusingRDMAwithRoCEv2in

acomputeintensiveenvironmentThearchitecturedemonstratessimplicitywhilstallowingaflexibleapproachtothelinearscalingofGPUs，

performance,andstoragerequirements.

Benchmark

Thisbenchmarkwasdesignedtoshowcasethehighsustainablethroughputthatcanbeachievedwhencorrectlyarchitectinga

disaggregatedstoragesolutionforthepurposescfhigh-performancecomputing(suchasMachineLearning)j.Inthisexampletheaimwasto

demonstrateavisualrenderingofa2011OklahomaTornadoinitsformationstage.

Thissimulation(mathematicallyderivedfrominitialconditionsjustbeforethetornadoformed)includes250billiongridpoints,eachwith

overadozenattriputessuchasrain,hailpressure,andwingdspeed.Thisdetailedvisualization,showing6000simulationsteps,provides

unprecedentedinsightintothetornadosdynamicswithastoragerequirementof5.9TBofdata.

TheBenchmarkEnablers

NVIDIAGPUDirectStorage{GDS)

GDSenablesaqirectdatapathfordirectmemoryaccess{(DMA)transfersbetweenGPUmemoryandstorage,whichavoidsabouncebuffer

throughtheCPU.ThisdirectpathincreasessystembandwidthanddecreasesthelatencyandutilizationloadontheCPU.Thisisparticularly

beneficialinhigh-performancecomputingandcomplexdataprocessingtasks.

WithoutGDS,GPUsqirectlyreadtraining/inferencedatafromlocalSSDsvi

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