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1、網(wǎng)格計(jì)算論文:網(wǎng)格資源發(fā)現(xiàn)新機(jī)制—分層網(wǎng)格資源模型的研究【中文摘要】網(wǎng)格現(xiàn)在被稱為第三代互聯(lián)網(wǎng)應(yīng)用。作為新興的互聯(lián)網(wǎng)技術(shù),它比因特網(wǎng)具有更強(qiáng)的功能和性能。目前衡量網(wǎng)格系統(tǒng)好環(huán)的重要標(biāo)準(zhǔn)之一就是在網(wǎng)格環(huán)境下能否高效的發(fā)現(xiàn)資源??梢哉f,網(wǎng)格環(huán)境下能否高效的發(fā)現(xiàn)資源是網(wǎng)格資源得以共享的基本要求。本文在對(duì)國內(nèi)外研究現(xiàn)狀深入分析的基礎(chǔ)上,將以提高資源發(fā)現(xiàn)的效率和減輕系統(tǒng)負(fù)擔(dān)為目標(biāo)深入研究網(wǎng)格資源的發(fā)現(xiàn)機(jī)制。本文試圖從網(wǎng)格資源的特點(diǎn)出發(fā),尋求一種更加合理的網(wǎng)格資源發(fā)現(xiàn)算法和更加有效的資源更新算法。主要做了以下研究工作:(1)本文針對(duì)網(wǎng)
2、格、網(wǎng)格計(jì)算作了相關(guān)介紹。描述了當(dāng)前比較流行的、典型的網(wǎng)格技術(shù)。(2)本文分析了現(xiàn)有的網(wǎng)格資源發(fā)現(xiàn)方法的缺點(diǎn),在對(duì)以上問題的研究中提出分層網(wǎng)格資源模型的概念。并對(duì)該模型設(shè)計(jì)資源表示方法即資源矩陣表示法。(3)本文設(shè)計(jì)了網(wǎng)格資源發(fā)現(xiàn)算法及更新算法,給出在分層網(wǎng)格資源模型基礎(chǔ)上的資源發(fā)現(xiàn)算法和資源更新算法。(4)本文對(duì)所提出的分層網(wǎng)格資源發(fā)現(xiàn)算法采用JAVA語言進(jìn)行模擬實(shí)驗(yàn),得出了可行性結(jié)果,能夠改善網(wǎng)格的整體性能。并與P2P資源發(fā)現(xiàn)作了對(duì)比分析?!居⑽恼縉owadaysgridiscalledthethirdgenera
3、tionofinternetapplication.AsanemergingInternettechnology,gridismuchstrongerthantheInternetintermsoffunctionandperformance.WhethercanthegridsystemfindresourcesefficientlyinGridEnvironmentisoneofimportantcriteriatomaeasureagridsysterm.That’stosay,Whethercanthegridsy
4、stemfindresourcesefficientlyinGridEnvironmentisthebasisofgridresourcesharing.Basedonthethroughlyanalysisofresearchstatusathomeandabroad,thispapersetsimprovingefficiencyofresourcediscoveryandreducingsystemburdenasagoal,makesfurtherstudyfordiscoverymechanismofgridre
5、source.Consideringthecharacteristicsofthegridresources,thisthesisattemptstoseekamorereasonableresourcediscoveryalgorithmandmoreeffectiveresourcerenewalalgorithm.Basedonprevious,thispapermainlymakesthefollowingresearchandinnovation:(1)Thisthesisintroducesgridandgri
6、dcomputing.Describesthecurrentpopulartypicalgridtechnology.(2)ThisthesisanalyzesthecurrentshortcomingsofGridResourceDiscovery,andraisedtheconceptofhierarchicalmodelofgridresourcesaccordingtotheaboveproblems.Italsodesignsresourcesrepresentationmethodsforthemodelnam
7、elyresourcesmatrixnotation.(3)Thisthesisdesignsthegridresourcediscoveryalgorithmandupdatealgorithm,givesResourcesdiscoveryalgorithmandresourceupdatealgorithmonthebasisofHierarchicalGridResourceModel.(4)Thisthesiscarriesasimulationexperimenttothegridresourcediscove
8、ryalgorithmusingJAVAandconcludesthefeasibleresultswhichcanimprovethewholeperformanceofthegrid.Finally,thispapermakesacomparativeanalysiswithP2Presourced