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Hierarchicalresourceallocationfor.docx

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HierarchicalresourceallocationforHierarchicalresourceallocationforintegratedmodularavionicssystemsAbstract：Recentlytheintegratedmodularavionics(IMA)architecturewhichintroducestheconceptofresourcepartitioningbecomespopularasanalternativetothetraditionalfederatedarchitecture.AnovelhierarchicalapproachisproposedtosolvetheresourceallocationproblemforIMAsystemsindistributedenvironments.Firstly,theworstcaseresponsetimeoftaskswitharbitrarydeadlinesisanalyzedforthetwo-levelscheduler.Then,thehierarchicalresourceallocationapproachispresentedintwolevels.Attheplatformlevel,ataskassignmentalgorithmbasedongeneticsimulatedannealing(GSA)isproposedtoassignasetofpre-definedtaskstodifferentprocessingnodesintheformoftaskgroups,sothatresourcescanbeallocatedaspartitionsandmappedtotaskgroups.Whileyieldingtoalltheresourceconstraints,thealgorithmtriestofindanoptimaltaskassignmentwithminimizedcommunicationcostsandbalancedworkload.Atthenodelevel,partitionparametersareoptimized,sothatthecomputationalresourcecanbeallocatedfurther.Anexampleisshowntoillustratethehierarchalresourceallocationapproachandmanifestthevalidity.SimulationresultscomparingtheperformanceoftheproposedGSAwiththatoftraditionalgeneticalgorithmsarepresentodinthecontextoftaskassignmentinIMAsystems.作者：Author：TianranZhou[1]  HuagangXiong[1]  ZhenZhang[2]作者单位：SchoolofElectronicandInformationEngineering,BeihaagUniversity,Beijing100191,P.R.ChinaDepartmentofElectricalEngineeringandComputerScience,UniversityofCalifornia,Irvine92697,USA期刊：系统工程与电子技术（英文版） EISCIJournal：JournalofSystemsEngineeringandElectronics年，卷(期)：2011, 22(5)分类号：V243Keywords：avionicssystemengineering  integratedmodularavionics(IMA)  resourceallocation  hierarchicalscheduling  geneticalgorithm(GA)  simulatedannealingalgorithm  机标分类号：TP3TN9机标关键词：integrated    resourceallocation    taskassignment    approach   &n