1. Slide David Britton, University of Glasgow IET, Oct 09 1 Prof. David Britton GridPP Project leader University of Glasgow GridPP Vendor Day 30 th April 2010

2. Slide The LHC and Experiments David Britton, University of Glasgow 2 Mont Blanc Geneva Airport France Switzerland CMS ATLAS

3. Slide March 30 th 2010 David Britton, University of Glasgow 3

4. Slide The CMS Detector IET, Oct 09 Total weight: 12,500 t Overall diameter: 15 m Overall length: 21.6 m Magnetic field: 4 T Iron yoke 4T solenoid ECAL PWO Crystals  < 3.0 Tracker Si Microstrips Pixels  < 2.5 HCAL Barrel Muon Drift tube chambers + RPC Endcap Muon Cathode strip chambers+RPC tiles  < 5.0 Brass/scintillato r

5. Slide GridPP in Context David Britton, University of Glasgow 5 Institutes CERN computer centre RAL,UK ScotGridNorthGridSouthGridLondon FranceItalyGermanyUSA GlasgowEdinburghDurham Tier 0 Tier 1 National centres Tier 2 Regional groups Offline farm Online system Workstations Useful model for Particle Physics but not necessary for others A national and international role: RAL,UK ScotGridNorthGridSouthGridLondon GlasgowEdinburghDurham “GridPP”

6. Slide 6 David Britton, Imperial College London IOP Plenary April 2007 19 UK Universities + CCLRC GridPP1 2001-2004 "From Web to Grid" GridPP2 2004-2007 "From Prototype to Production” GridPP3 2008-2011 "From Production to exploitation” GridPP: Who are we?

7. Slide 7 David Britton, Imperial College London IOP Plenary April 2007 ScotGrid Durham, Edinburgh, Glasgow NorthGrid Daresbury, Lancaster, Liverpool, Manchester, Sheffield SouthGrid Birmingham, Bristol, Cambridge, Oxford, RAL PPD London Brunel, Imperial, QMUL, RHUL, UCL Mostly funded by HEFCE UK Tier-2 Centres

8. Slide The Data Deluge David Britton, University of Glasgow 8 ~100 million electronic channels 600 million p-p collision/sec 10-15 PB of data/year In 2010, requires 1100 KHSO6 (130,000 modern cores) and 200 PB of storage (disk + tape) globally In 2011 these increase by 30% and 50% respectively

9. Slide Tier Center Roles David Britton, University of Glasgow 9

10. Slide Resources in 2009 David Britton, University of Glasgow 10 Delivering Resources… … to the LHC experiments and beyond An essential part of GridPP Ready for action!

11. Slide Glasgow David Britton, University of Glasgow 11

12. Slide  The LHC has started and is likely to run throughout 2010 and 2011 before a significant break. This covers GridPP3  GridPP4  Computing is required, as much as the detectors and the machine, in order to extract the physics. Collaborative and Competitive environment.  GridPP has a responsibility and an obligation to deliver to the UK and an international community.  The EU backdrop is complex; but is now starting to come into focus with the development of the EGI.  The UK context is responsive to the European developments with the formation of an NGI based on GridPP and the NGS. GridPP4: The Context David Britton, University of Glasgow 12

13. Slide GridPP4 Proposal David Britton, University of Glasgow 13

14. Slide Hardware Requirements David Britton, University of Glasgow 14 LHC Schedule Experimen t Computing Models Global Resource Requirements UK Resource Requirements Hardware Costings UK Resource Request Scrutiny by C-RSG, CRRB, LHCC. UK Collaboration sizes GridPP runs a market for Tier-2 resources: We offer institutes cash and manpower in return for delivering a pre- determined level of resources at a defined service level. This competitive environment provides GridPP with value for money. Experience with real data Chamonix 2010

15. Slide … part of the big picture David Britton, University of Glasgow 15

16. Slide Conclusion David Britton, University of Glasgow 16 GridPP is a national UK project involving 19 institutes that provides computing for the LHC and an integral part of the world-wide LHC computing Grid. GridPP is led from Glasgow University. Glasgow is the leading UK Tier-2 site and is highly regarded nationally and internationally. The current procurement is the final tranche of GridPP3 money; the 4 th phase of the project starts in April 2011 and will extend for another 4 years. In the period there will be something like £8m worth of hardware for the Tier-1 and Tier-2 sites.