1. les.robertson@cern.ch 10-Feb-00 CERN HepCCC Grid Initiative ATLAS meeting – 16 February 2000 Les Robertson CERN/IT

2. CERN 16-feb-00 - #2les 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  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. CERN 16-feb-00 - #3les robertson - cern/it Department    Desktop The MONARC RC Topology CERN – Tier 0 MONARC report: http://home.cern.ch/~barone/monarc/RCArchitecture.html Tier 1 FNAL RAL IN2P3 622 Mbps 2.5 Gbps 622 Mbps 155 mbps Tier2 Lab a Uni b Lab c Uni n

4. CERN 16-feb-00 - #4les robertson - cern/it 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. CERN 16-feb-00 - #5les robertson - cern/it 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. CERN 16-feb-00 - #6les robertson - cern/it Opportunities  EU-US joint project initiative  Initial meeting Bruxelles 1997 (Gagliardi-CERN, Messina- CALTECH)  Workshop Annapolis - September 1999  http://www.cacr.caltech.edu/euus 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. CERN 16-feb-00 - #7les robertson - cern/it 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. CERN 16-feb-00 - #8les robertson - cern/it 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. CERN 16-feb-00 - #9les robertson - cern/it 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