Out of core Algorithms for Scientific Visualizationand Computer Graphics

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1、Out-Of-CoreAlgorithmsforScientificVisualizationandComputerGraphicsCourseNotesforIEEEVisualization2002Boston,MassachusettsOctober2002Organizer:Claudio´T.SilvaOregonHealth&ScienceUniversitySpeakers:Yi-JenChiangPolytechnicUniversityJihadEl-SanaBenGurionUniversityPeterLindstromLawrenceLivermor

2、eNationalLaboratoryClaudio´T.SilvaOregonHealth&ScienceUniversityAbstractThiscoursewillfocusondescribingtechniquesforhandlingdatasetslargerthanmainmemoryinscientificvisualizationandcomputergraphics.Recently,severalexternalmemorytechniqueshavebeendevelopedforawidevarietyofgraphicsandvisualiz

3、ationproblems,includingsurfacesimplification,volumeren-dering,isosurfacegeneration,raytracing,surfacereconstruction,andsoon.Thisworkhashadsignificantimpactgiventhatinrecentyearstherehasbeenarapidincreaseintherawsizeofdatasets.Severaltechnologicaltrendsarecontributingtothis,suchasthedevelopm

4、entofhigh-resolution3Dscanners,andtheneedtovisualizeASCI-size(AcceleratedStrategicComputingInitiative)datasets.An-otherimportantpushforthiskindoftechnologyisthegrowingspeedgapbetweenmainmemoryandcaches,suchagappenalizesalgorithmswhichdonotoptimizeforcoherenceofaccess.Becauseofthesereasons

5、,muchresearchincomputergraphicsfocusesondevelopingout-of-core(andoftencache-friendly)techniques.Thiscoursereviewsfundamentalissues,currentproblems,andunresolvedso-lutions,andpresentsanin-depthstudyofexternalmemoryalgorithmsdevelopedinrecentyears.Itsgoalistoprovidestudentsandgraphicsresear

6、chersandpro-fessionalswithaneffectiveknowledgeofcurrenttechniques,aswellasthefoun-dationtodevelopnoveltechniquesontheirown.Schedule(tentative)5minIntroductiontothecourseSilva45minOverviewofexternalmemoryalgorithmsChiang40minOut-of-corescientificvisualizationSilva15minBreak40minOut-of-cores

7、urfacesimplificationLindstrom40minOut-of-coreinteractiverenderingEl-Sana10minQuestionsandfinalremarksAllspeakersSpeakerBiographiesClaudio´T.SilvaOGI/CSE20000N.W.WalkerRoadBearverton,OR97006E-mail:csilva@cse.ogi.eduClaudio´T.SilvaisanAssociateProfessorintheDepartmentof