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GridPP

GridPP. Steve Lloyd, Chair of the GridPP Collaboration Board. A Brief History of GridPP. GridPP provides UK Computing resources for the LHC experiments, other HEP experiments and other activities. 2001 – 2004 GridPP1 – From Web to Grid 2004 – 2007 GridPP2 – From Prototype to Production

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GridPP

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  1. GridPP Steve Lloyd, Chair of the GridPP Collaboration Board

  2. A Brief History of GridPP GridPP provides UK Computing resources for the LHC experiments, other HEP experiments and other activities. • 2001 – 2004 GridPP1 – From Web to Grid • 2004 – 2007 GridPP2 – From Prototype to Production • 2007 – 2008 GridPP2+ One year extension • 2008 – 2011 GridPP3 – From Production to Exploitation • 2011 – 2015 GridPP4 - Computing in the LHC era • 2015 – 2016 GridPP4+ One year extension • 2016 - 2020? GridPP5 GridPP PPAP July 2014

  3. Oversight Committee (OC) Review Collaboration Board (CB) Project Management Project Management Board (PMB) GridPP only exists to facilitate analysis of data from the experiments. This is reflected by the management of the project which has the LHC experiments directly represented. Provision Utilisation Operations Team(Ops-Team) Experiments Liaison Operation GridPP PPAP July 2014

  4. GridPP Activities Tier-1 Hardware 23% Tier-1 Staff 20% Tier-2 Hardware 10% Tier-2 Staff 23% Operations Staff 15% Manage/Travel 10% GridPP PPAP July 2014

  5. Hardware Costs STFC have signed an MoU with WLCG for the UK to provide Tier-1 and Tier-2 resources The LHC Experiments provide estimates of their required future resources These are scrutinised and approved by the CERN Computing Resource Review Board (CRRB) We multiply by the ~UK authorship fraction: 2% of ALICE, 12.5% of ATLAS, 8%/5% of CMS and 31.5%/21.5% of LHCb [Tier-1/Tier-2] We add ~10% for other experiments then multiply by the estimated cost Gives total hardware cost per year at Tier-1 and Tier-2s – NO DISCRETION! GridPP PPAP July 2014

  6. RAL Tier-1 • The UK Tier-1 at RAL provides: • CPU and disk resources to meet the UK’s WLCG Tier-1 MoU requirements; • An Archival (robotic) Tape service to preserve raw LHC data; • Manpower to maintain and operate the disk and tape systems, Grid Middleware, Oracle databases, fabric and day to day production; • Embedded manpower to interface directly with ATLAS, CMS and LHCb; • Excellent reliability, a high level of availability and rapid responsiveness; • Excellent Network connections including an optical private network (OPN) direct connection to CERN. 5,760 Logical CPUs 59,641 HEPSPEC06 12 PB Disk 12 PB Tape GridPP PPAP July 2014

  7. Tier-1 Delivery Tier-1 CPU Delivery 2011-2014 GridPP PPAP July 2014

  8. Tier-2s • The UK Tier-2s provide: • CPU and disk resources to meet the UK’s WLCG Tier-2 MoU requirements; • Manpower to support Group Analysis Sites, with large amounts of disk and excellent network connections, for ATLAS and CMS; • Manpower to provide all experiments with CPU and disk for opportunistic user analysis and Monte Carlo simulation; • A distributed ecosystem to support UK physicists doing their analysis; • The majority of the Deployment, Operations, and Support staff who transform the distributed resources into a coherent Grid infrastructure • Hardware resources for testing middleware releases, new technologies and running some core services; • A successful framework for leveraging local resources and support; • Opportunities for reaching out to other communities to support STFC’s impact agenda. GridPP PPAP July 2014

  9. Tier-2 Resources Some redistribution following mid-term review London Large sites (green) have ~2 FTE staff Medium sites (yellow) have ~1 FTE staff Small sites (blue) have ~0 FTE staff NorthGrid ScotGrid SouthGrid GridPP PPAP July 2014

  10. Tier-2 Delivery Tier-2 CPU Delivery 2011-2014 GridPP PPAP July 2014

  11. UK Tier-2 Delivery UK Tier-2 CPU Delivery 2011-2014 GridPP PPAP July 2014

  12. External Activities • GridPP is part of WLCG that combines: • EGI (European Grid Infrastructure) • OSG (Open Science Grid) in the US • NorduGrid in the Nordic countries • There are new Initiatives looking towards Horizon 2020 etc. such as • EU-T0 – an initiative to federate national centres into a European Computing Centre for Experimental Data Managementformed by major EU funding agencies inc. STFC. • HEP Software Foundation – a collaborative framework to develop and maintain all major HEP-related software. • VLData – a generic platform for distributed computing integrating existing Grid, cloud and other computing and storage resources. • UK Project Directors Group. • E-infrastructure academic user community. • JOIN – A joint DiRAC (HPC)-GridPP Authentication and Authorization Infrastructure (AAI) initiative GridPP PPAP July 2014

  13. The Future GridPP5 GridPP PPAP July 2014 13

  14. The Future Hardware costs will hopefully continue to fall (Moore’s Law etc) but: Data accumulates and trigger rates are going up (x2.5 Run-2, x10 Run-3?) and more complex (pile-up) requiring much more hardware The Grid is continually evolving – multi-cores, new architectures, clouds, storage technologies, WAN access etc. Distinction between Tier-1, Tier-2 is blurring. Manpower requirements may decrease slightly but not dramatically in face of increased resources and complexity LUX/ZEPLIN are bidding for computing and storage that will be run by GridPP leveraging existing support and expertise. Could be a good model for other communities, T2K, Hyper-K, ILC, NA62 etc.) GridPP with continue to be a necessary component of UK particle physics for many years for ALL experiments. GridPP PPAP July 2014

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