ContentsWhat is Access Grid?History of Access GridCurrent developmentsFuture developmentsVideoconferencing ReportSC Global

Typical Views of Access GridETF Management MeetingSeminarSeminarSC Global WorkshopPerformance Art

What is Access Grid? (1)Large-scale display typically a whole wallMultiple video streams from each siteNatural, full-duplex audio with echo cancellation An Advanced Collaboration EnvironmentUses IP multicast for video/audioOpen Source software; commodity equipmentUsually!

What is Access Grid? (2)Virtual collaborative spaces Virtual VenuesPlaces to share:VideoAudioDataApplicationsVirtual Organisations have their own Virtual Venues

Access Grid HistoryNovember 1998 Access Grid born at Argonne National LabFirst event Chautauqua 99August 2001 UK gets first AG node @ ManchesterNovember 2001 SC Global 2001 (Denver)May 2003 AG2November 2003 SC Global 2003 (Phoenix)

Number of Access Grid NodesFeb 2003 5 out of 7 continents; 17 countries; 39 US states

Scheduled Access Grid EventsBut how many unscheduled?

Current Developments AG2AG1 = proof-of-concept prototypeAG2:Integrate with Grid technologies (e.g. X.509 certificates for authentication)Secure environmentRobust, extensible frameworkImproved network featuresServices architecture

Future DevelopmentsImproved videoImproved audioEasier operationEasier sharing of dataAutomated failoverSupport of different bandwidth capabilities

Videoconferencing ReportOct 2002 publication of Multi-Site Videoconferencing for the UK e-Science Programmehttp://www.nesc.ac.uk/technical_papers/UKeS-2002-04.htmlComparison between Access Grid, H.323/H.320, VRVS, Non-Studio Based VideoconferencingHuman FactorsInteroperabilityData & Application Sharing

Main RecommendationsCreate an e-Science advanced collaborative environments R&D effortFormalise Access Grid support Enable full interoperability between different technologiesDeploy multicast bridge(s) Investigate improvements for multi-site booking systems

SC Global 2001SC Global 2001 Worlds First Truly Distributed Conference6 out of 7 continents

SC Global 2003Built on AG2 technology and distributed Tech HubsEvents include:Tribal Virtual NetworkGrid & Web Services towards Collaborative VisualizationVirtual Design in EngineeringCollaborative Art18-21 NovemberAt Phoenix & on the Network!http://www.scglobal.org

Manchester ComputingSupercomputing, Visualization & e-Science

SVE @ Manchester ComputingContact Details

http://www.sve.man.ac.uk/General/Staff/daw

michael.daw@man.ac.uk

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