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ID:36576917
大小:2.60 MB
页数:48页
时间:2019-05-12
《网格服务资源发现的研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、大连交通大学硕士学位论文网格服务资源发现的研究姓名:何超申请学位级别:硕士专业:计算机应用技术指导教师:马海波20081214大连交通人学l:学硕十学何论文AbstractGridtechnologyis811importantdevelopmentdirectionofcurrentcomputertechnology.Itintegratesresourcesthatareconnectedbymeansofcommunicationmeasuresintoanorganicwhole.andsuppliesuserwithanewkindofcomputingplatformb
2、asedonInternet.Gridinformationserviceisthecoreofgridsystem.Itsgoalistoconnectandintegratevariousdistributedandheterogeneoushigh-performancecomputersthroughhigh-speedInternet.TheGISprovidesuniformaccesstogriddatastorageresources.Itisalsoconvenientforuserstofinding.accessanddealwitllinformation.D
3、uetolarge·scaleofgrd,inthegridenvironment,therearelargenumberofresources,thetypesofresourcesarecomplex,resourcemanagementstrategiesofresourceownersaredifferent,someoftheresourcesmayneedtotaketheinitiativetoleavethegrdenvironmentbecauseofthemanagementorWasforcedtowithdrawfromthegrdbecauseofsomeu
4、nforeseenerrorandSO,theresourcediscoveryunderlargescalegridenvironmentalbecomesverycomplexanddifficult.Theexistinggridresourcesfoundmodelhascompletelycentralizedresourcesfindingalgorithm,highFindingefficiency,butreliability,thereisasinglepointoffailure,scalabilityisratherpoor,limitedbytheabilit
5、yofthecentralinformationnode,doesnotapplytolargescalesystems;Inthefullydistributedmethods,thedisorderandnostructureofinformationresourcesspacemakesresourcediscoveryblindness,resourcediscoverybasiconfloodingorradioislessefficient.Fortheshortcomingsofgridresourcesdiscoverymodel,thispaperisgoingto
6、elaborateabasedonhierarchicaltreestructureandoverlaynetworkofthegrdresourcediscoverymodel.Themodelwillbelogicallyfromthegridisdividedintotwolayersfromtoptobottom:fromthelowergridhasavarietyofresourcesandservicesofthegrdnodesresources;forthetopgrdnodesofinformationandreliabledistributionnetworko
7、ftreecover,inchargeofinformationnodeTheorganization,managementandresourcelocator.Themodelisbasedonlayeredapproachtolarge—scaledistributiongrdtoimprovetheenvironmentalresourcesfoundinscalability,reliabilitytothenetworkoftreecoverto
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