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HepCCC Grid Initiative

HepCCC Grid Initiative. ATLAS meeting – 16 February 2000 Les Robertson CERN/IT. Why Regional Centres?. Bring computing facilities closer to home final analysis on a compact cluster in the physics department Exploit established computing expertise & infrastructure

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HepCCC Grid Initiative

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  1. HepCCC Grid Initiative ATLAS meeting – 16 February 2000 Les Robertson CERN/IT

  2. Why Regional Centres? • Bring computing facilities closer to home • final analysis on a compact cluster in the physics department • Exploit established computing expertise & infrastructure • Reduce dependence on links to CERN • full ESD available nearby - through a fat, fast, reliable network link • Tap funding sources not otherwise available to HEP • Devolve control over resource allocation • national interests? • regional interests? • at the expense of physics interests?

  3. 2.5 Gbps IN2P3 622 Mbps RAL FNAL Tier 1 155 mbps 155 mbps 622 Mbps Uni n Lab a Tier2 Uni b Lab c   Department  Desktop The MONARC RC Topology CERN – Tier 0 MONARC report: http://home.cern.ch/~barone/monarc/RCArchitecture.html

  4. The problem • Scalability • Thousands of processors, thousands of disks, PetaBytes of data, Terabits/second of I/O bandwidth, …. • Wide-area distribution • WANs are and will be 1% of LANs • Distribute, replicate, cache, synchronise the data • Multiple ownership, policies, …. • integration of this amorphous collection of Regional Centres • With some attempt at optimisation • Adaptability • We shall only know how analysis is done once the data arrives

  5. The R&D needed Local • Computing fabric management • Auto-everything • Installation, configuration, monitoring, diagnosing, self-healing, …. • Mass storage management Wide-area • data management • workload management • application monitoring

  6. Opportunities • EU-US joint project initiative • Initial meeting Bruxelles 1997 (Gagliardi-CERN, Messina-CALTECH) • Workshop Annapolis - September 1999 • http://www.cacr.caltech.edu/euus • Large Scientific Databases • Visit of G. Metakides to CERN – November 1999 • HEPCCC discussion of possible Data Grid project • HEPCCC chairman asked CERN-IT to coordinate efforts • January 11 – meeting at CERN of HEP representatives of various member states • January 17 – meeting in Bruxelles (Gagliardi, Messina, Metakides) • HEP invited to submit an outline proposal for a data intensive grid

  7. More background • Change of orientation of US Meta-computing activity • From inter-connected super-computers … .. towards a more general concept of a computational Grid (The Grid – Ian Foster, Carl Kesselman) • US – Particle Physics Data Grid (PPDG) • Initiation of a Grid technology evaluation project in INFN • UK proposal for funding for a prototype grid • GriPhyN – data grid proposal being prepared for NSF IT research funds • NASA Information Processing Grid • February 15 – HEPCCC initiative outline sent to EU • http://nicewww.cern.ch/~les/grid/welcome.html

  8. Grid Technology Globus project • Basic middleware • Authentication • Information service • Resource management • Good basis to build on • Much work to be done • Few production quality implementations

  9. Current Status • Forming a committee of potential partners • LHC software coordinators & MONARC observers • Workshop on 7 March at CERN • Need to identify at least one other science • And industrial participation • Technical team to define the work programme • Need to coordinate the many technical activities • And participate actively in the Grid Forum • http://www.gridforum.org

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