A Dutch LHC Tier-1 Facility Jeff Templon PDP Group, NIKHEF RECFA Visit 23 sept 2005

LHC Computing in NL SARA / NIKHEF : Tier-1 for ALICE, ATLAS, LHCb SARA: bulk of resources, all of long-term mass store NIKHEF: significant resources, bridge to experiments & middleware groups Contribution to exp’ts scale roughly as our presence: 4 : 2 : 1 LHCb : ATLAS : ALICE Fraction of world Tier-1 resources in Amsterdam: 23% : 11.5% : 5.75% Tier-1 forms large part of National e-Science Center n.b. LHC middleware must be generic enough for others! NIKHEF : gridified analysis facility with rough scale of Tier-2

numbers 3 kSI2k == latest dual-CPU machine NIKHEF today +- 230 kSI2k, 10 TB disk 3 kSI2k == latest dual-CPU machine

External (personnel) funds now from EGEE and VL-E projects How We Got Here D0 Distributed Computing (since 2000) first farm at NIKHEF NIKHEF led 1st HEP reco on Grid One of principal project partners Third site to join EDG grid Remained one of the five ‘core sites’ throughout the project Contributions in this project earned us a fantastic position in the grid world Bring LHC and “rest of world” closer together Active participation builds consensus and makes an e-Science center with LHC Tier-1 a real possibility External (personnel) funds now from EGEE and VL-E projects

Local Highlights Positioned well in LCG & EGEE Enthusiastically accepted as Tier-1 One of ‘best run’ sites One of first sites (#3 in EDG, compare #4 in WWW) Membership on: Middleware Design Team (US collaboration here too) Middleware Security Group Various other working groups and RTAGs D. Groep chairs world-recognized EUGridPMA and IGTF K. Bos chairs LHC Grid Deployment Board Profit from close collaboration with best network in world (Surfnet) and experts to exploit it (UvA)

people PDP group (grid) 10 staff (5 permanent), 9,5 FTE Three arms: operations / applications / security CT group (everything else; ~ 70% PDP also in CT) 21 staff (16 permanent) 15% support / management 35% system & hardware administration 50% technical (grid, data acquisition, etc)

budget Tier-1 Desktops, NIKHEF analysis facility budget for new investments short term (2006 – 2007): 2,8 M€ from NCF; Tier-1 part ~ 0,6 M€ mid term (2007 – 2010) : 2 M€ / yr from NCF; part of NCF long-range plan but funds not yet secured. Budget for maintenance included in above figures Desktops, NIKHEF analysis facility New investments 170 k€ Maintenance & overhead 160 k€ Extra funding for analysis facility from NIKHEF discretionary budget if necessary

Progress at NIKHEF LHCb DC ‘04 Up to 3000 simultaneous “jobs” per experiment 2.2 million CPU-hours (250 years) used in one month Total data volume > 25 TB For LHCb: NIKHEF ~ 6% of global total

“The Dutch Contribution” Progress at SARA LCG Service Challenge II “The Dutch Contribution”