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GLIF Infrastructure

This panel discussion explores the involvement of Canada, Japan, the Netherlands, the United Kingdom, and the United States in GLIF, the accomplishments possible on lambdas compared to best-effort networks, the connectivity of infrastructure, missing components, and the future of networking.

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GLIF Infrastructure

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  1. GLIF Infrastructure SC2004 Panel Discussion Peter Clarke UK National e-Science Centre

  2. Questions • Why are Canada, Japan, the Netherlands, the United Kingdom and the United States involved in GLIF? • What can be accomplished on lambdas that cannot be accomplished on "best-effort" networks? • Where does your infrastructure connect? • What's missing? When will we implement a totally functional LambdaGrid? • What do you see as the future of networking?

  3. Questions • Why are Canada, Japan, the Netherlands, the United Kingdom and the United States involved in GLIF? • Community Lobby • National Competitiveness in Research • Acceptance that one size manifestly doesn’t fit all • Capability for Research • You cant do it alone (by definition its an end-2-end thing) • Trust

  4. Capability : Steering & Migration of Computationally intensive simulations Cubic micellar phase, low surfactant density gradient. Initial condition: Random water/ surfactant mixture. Self-assembly starts. Lamellar phase: surfactant bilayers between water layers. Rewind and restart from checkpoint.

  5. Source: Reality Grid Project www.realitygrid.org UK HPC machines connected to TeraGrid for SC2003 Now a persistent connection

  6. Capability: Breast Screening Programmes Current system is “minimal” technologically (taken from e-DiaMoND Project)

  7. Future should be digitised and processed images (taken from e-DiaMoND Project) Remote Radiographers ? NETWORK 2nd opinion Remote Patient information • Requires ~ Gbit/s flows for remote access • Will not be possible without scheduled guaranteed net-services

  8. What can be accomplished on lambdas that cannot be accomplished on "best-effort" networks? • An R&D network is not a production network – you can do “out of the box” things • Certainty of having what you need when you need it (but not scalable today of course) – means research computing can be planned • Ability to use non standard transport • Fixed latency => “backplane” connections between compute centres => virtual machine rooms • Provide virtual networks a la UCLP, and push management to the users

  9. CDF – ConnectionUCL-FNAL

  10. Where does your infrastructure connect ?

  11. Source: Kees Neggers, SURFnet NewYork MANLAN Stockholm NorthernLight 10 Gbit/s IEEAF 10 Gbit/s 10 Gbit/s 2.5 Gbit/s 2.5 Gbit/s 10 Gbit/s SURFnet 10 Gbit/s CA*net4 Amsterdam NetherLight Chicago StarLight Tokyo WIDE IEEAF 10 Gbit/s 10 Gbit/s NSF 10 Gbit/s 10 Gbit/s 10 Gbit/s 2.5 Gbit/s SURFnet 10 Gbit/s Tokyo APAN 2.5 Gbit/s 10 Gbit/s London UKLight Geneva CERN Prague CzechLight

  12. As a result of the initiative, UKERNA have pushed through a complementary initiative to provide a nationwide domestic R&D network in parallel with SupetJANET UHI Network AbMAN Clydenet FaTMAN EaStMAN T T C&NL MAN NNW C T Glasgow Edinburgh NorMAN S YHMAN T Warrington Leeds T EMMAN MidMAN T EastNet Reading T London Kentish MAN TVN Portsmouth T Bristol LMN Northern Ireland S S South Wales MAN London UKLight S T SWERN LeNSE

  13. What's missing? When will we implement a totally functional LambdaGrid? • When NRENS all adopt hybrid networking as the normal business model • Requirement: irrefutable proof of benefit • Political: national competitiveness, one price for all issues.. • Financial: proof of cost effectiveness • Policy: • When we have a common and “standards” based control plane infrastructure – not individual solutions : now is the time to get together on this one(IMHO) • I have no idea about the last mile issue

  14. What do you see as the future of networking Wrong guy to ask – I think from point of view of future of computationally intensive research where I would say: • We must get to point where network is not seen by researchers as a big barrier which keeps sites disjoint • Must ensure it is understood that research capability is currently inhibited by “traditional” network provision • Must ensure it is understood that one size doesn’t fit all is a good idea (there is no way research could be carried out if we all took commercial IP connections)

  15. Router Router Routed IP Network “layer-2” split out of wavelength [e.g. Ethernet] … a possible Network of the Future…. • Provides • Normal best effort IP network where appropriate • Extended “virtual LANs” where appropriate • Switched lightpaths where appropriate

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