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Lawrence H. Landweber National Science Foundation SC2003 November 20, 2003 landweber@aol

Lawrence H. Landweber National Science Foundation SC2003 November 20, 2003 landweber@aol.com. QUESTION 2. Future Cyberinfrastructure. Built on broadly accessible, highly capable network: 100’s of Tbps backbones;

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Lawrence H. Landweber National Science Foundation SC2003 November 20, 2003 landweber@aol

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  1. Lawrence H. LandweberNational Science FoundationSC2003November 20, 2003landweber@aol.com

  2. QUESTION 2

  3. Future Cyberinfrastructure • Built on broadly accessible, highly capable network: 100’s of Tbps backbones; • Significant distributed and varied computing resources: 100’s of petaflops in aggregate; • Significant storage capacity: exabyte collections common; • Allows wide range of sensors/effectors to be connected: sensor nets of millions of elements attached; • Contains a broad variety of intelligent visualization, search, database, programming and other services that are fitted to specific disciplines • The ETF or Extensible Terascale Facility is an early prototype

  4. Technical Challenges • How to build the components? • Networks, processors, storage devices, sensors, software • How to shape the technical architecture? • Pervasive, many cyberinfrastructures, constantly evolving/changing capabilities • How to customize CI to particular S&E domains

  5. Shared vs. Special Networks • Determine application’s networking requirements including tradeoffs (e.g., cost vs. full or approximate satisfaction of requirements). • Determine whether requirements can be satisfied (modulo tradeoffs) on shared network. • If not, determine characteristics of network that would satisfy application's requirements. • Use an available network with these characteristics. • If no such network available, • map characteristics to a network technology and • implement the target network or some acceptable approximation. • These are hard problems, not easily answerable for complex applications and networks.

  6. Research Opportunities • Develop methodology for mapping applications to required networks or approximations of networks. • Important because not all apps need (or can financially justify) special networks. Selecting the target network is not easy. • There are research opportunities in this area for collaboration between mathematicians, computer scientists and scientists.

  7. QUESTION 5

  8. Next Generation Network Projects • NSF: ITR Projects • OptIPuter • 100 Mbps to 100 Million Homes • NSF: Extensible Terascale Facility • National Lambda Rail

  9. 100 Mbps to 100 Million Homes • NSF Funded Research Project (10/03) - $7.5M • Stanford, Berkeley, CMU, Rice, Fraser Research, Internet2 • Scope • Economics • Access • Metropolitan area • Backbone • Protocols • Requires a redesign of the access, metropolitan and backbone networks of the Internet • Applications?

  10. Extensible Terascale Facility • Resource providers (currently 8) • Cycles, storage, instruments • High speed IP interconnect • Hubs in Chicago and Atlanta • Links are multiples of 10Gbps • Reserve dedicated paths for apps • Management strategies being discussed • Operational - 2004

  11. 2010 • Shared networks for most applications • Ability to configure special networks to serve applications • Dynamically schedulable networks • Depends on progress in optical switching and associated management/control • Eventually in real-time

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