離子傳輸模擬并行計(jì)算平臺(tái)中動(dòng)態(tài)負(fù)載均衡模型研究.pdf

1、湖南大學(xué)碩士學(xué)位論文離子傳輸模擬并行計(jì)算平臺(tái)中動(dòng)態(tài)負(fù)載均衡模型研究姓名：解慶春申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師：徐向陽20090428離子傳輸模擬并行計(jì)算甲臺(tái)中動(dòng)態(tài)負(fù)找均衡模型研究AbstractWiththerapiddevelopmentofinformationsociety，alargeamountofdataneedtobeprocessedinashorttimeItishardforsinglemachine

2、seriesmodeintraditionalway，butparallelcomputingtechnologyisoneoftheeffectivemethodstosolvesuchproblemsClusterisakindofParallelcomputingtechnology，whichhassomeadvantages，suchaslowinvestment，easytoinstall，quicktogaineffect

3、，eteBecauseoftheseadvantages，ClusterwillbethemasterintheparallelcomputingareaThisthesisstemedfromthetheoreticalandexperimentalresearchinthespacechargeeffectandthestabilityofhighcurrentaccelerators，whichbelongedtotheInsti

4、tuteofModernPhysics，ChineseAcademyofSciencesInthispaperparallelclustertechnologywasusedtoaccomplishthelargenumericalcalculationofiontransmissionbyPCclusternodeswhichcooperatedwitheachotherWealsoproposedadynamic，loadbalan

5、cingmodelforheterogeneousclusterwhichwasbasedonthefeedbackoftheloadstatechanging，atthesametimeinrealizingtheparallelprogramofionmotionsimulationThemaincontributionsofthispaperwereasfollows：Firstlyconsideringtheprocesseso

6、fiontransport，thewriterdesignedamodelinresponsetothesimulationproblemoftheiontransmission，usingDivide—andConqueralgorithmandamethodnamedPCAM(Partitioning，Communication，Agglomeration，Mapping)fordesigningparallelsoftwareTh

7、ewriterdesignedandimplementedaparallelprogrambyMPIinterfaceandCprogramminglanguageaccordingtothemodeLSecondly，thewriterpresentedaDLBMSF(DynamicLoadBalancingModelbasedonStatusFeedback)modelbasedonthestatusfeedback，andreal

8、izedthemodelbytakingadvantageoftheMPImessagepassingmechanismInthismodel，anintegratedweightofavailableresourcewastheindicatorfortaskdispatching，andanimprovedweightedroundrobinschedulingalgorithmcalledIWRRSwereusedfortaskd

9、istributionThemodeladopteddynamicloadbalancingalgorithmtriggeredbyslavenode’Sloadstatuschanging，whichimprovedtheparallelefficiencyofclustergreatlyInordertoguaranteethestabilityandreliabilityofclustersystems，themodelalsoa

10、ddedperiodicheartbeatdetectionmechanismLastly，howtheratioofcomputingtimetocommunicationtimeimpactsonParallelspeedupisalsotalkedabouinthispaperThewritercombinedtheionsimulationparallelprogramwiththeDLBMSFmodel，experimenta