abstract coordinated thread scheduling for workstation clusters under windows ntnew

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1、ThefollowingpaperwasoriginallypublishedintheProceedingsoftheUSENIXWindowsNTWorkshopSeattle,Washington,August1997CoordinatedThreadSchedulingforWorkstationClustersUnderWindowsNTMattBuchananandAndrewA.ChienConcurrentSystemsArchitectureGroupDepartmentofComputerScience,UniversityofIllinoisFormoreinform

2、ationaboutUSENIXAssociationcontact:1.Phone:510528-86492.FAX:510548-57383.Email:office@usenix.org4.WWWURL:http://www.usenix.orgCoordinatedThreadSchedulingforWorkstationClustersUnderWindowsNTMattBuchananandAndrewA.ChienConcurrentSystemsArchitectureGroupDepartmentofComputerScience,UniversityofIllinoi

3、s({mbbuchan,achien}@cs.uiuc.edu)Abstractcommunicationlatenciesbycoschedulingthreadsthatarecommunicating,therebyeliminatingthecontextswitchandschedulinglatenciesfromthecommuni-Coordinatedthreadschedulingisacriticalfactorincationlatency.Anotherimportantproblemisthatachievinggoodperformancefortightly

4、-coupledpar-uncoordinatedschedulingcanreducesystemeffi-alleljobsonworkstationclusters.Wearebuildingaciencyasincreasedlatencycandecreasetheeffi-coordinatedschedulingsystemthatcoexistswiththeciencyofresourceutilization.Ashigh-performanceWindowsNTschedulerwhichbothprovidescoordi-networksandCPUsbecome

5、moreaffordablefornatedschedulingandcangeneralizetoprovideawidehigh-endcomputing,schedulingemergesasanim-rangeofresourceabstractions.Wedescribethebasicportantfactorinoverallsystemperformance.approach,called“demand-basedcoscheduling”,andimplementationinthecontextofWindowsNT.WeAlow-latency,high-bandw

6、idthmessaginglayerreportpreliminaryperformancedatacharacterizingworkstobridgethemixofinterconnect,operatingtheeffectivenessofourapproachanddescribebene-system,anduserapplications,deliveringtherawper-fitsandlimitationsofourapproach.formanceoftheinterconnecttothesoftware[14,2,8,9].Suchlayersareessen

7、tialbecausetheymakeavailablethehighperformanceoftheunderly-ingnetworkhardwaretoapplications.IllinoisFast1.IntroductionMessages(FM)issuchamessaginglayer[14],andisakeypartoftheConcurrentSystemArchitectureCoordinate