Overview of LCGFrance Tier2 s and Tier3 s

Overview of LCG-France Tier-2 s and Tier-3 s Frédérique Chollet (IN 2 P 3 -LAPP) on behalf of the LCG-France project and Tiers representatives CMS visit to Tier-1 Lyon, Nov. 30 2007

Contents • Short overview … § LCG-France sites § Planned Tier-2 s contribution § T 2 T 3 Technical group CMS specific support and activities will be presented later on… … ready for coordinated activities 2

Introduction • • LCG-France project promotes the creation and coordinates the integration of Tier-2/Tier-3 french sites into the WLCG collaboration 4 WLCG Tiers-2 : § § • Analysis facility in Lyon GRIF-Paris Region acting as a federation of 5 sites (DAPNIA, IPNO, LAL, LLR, LPNHE) LPC-Clermont Subatech-Nantes LCG-France sites : a set of 5 Tier-2 s and 4 Tier-3 s § § 11 IN 2 P 3 laboratories and DAPNIA Saclay involved Tier-2 s and Tier-3 s funded by universities, local/regional governments, hosting laboratories, … Open to EGEE VOs - Collaborations established outside HEP CNRS funding support expected from 2009 3

LCG-Frances sites Tier-2: GRIF • CEA/DAPNIA • LAL • LLR • LPNHE • IPNO Tier-3: IPHC Strasbourg Nantes Ile de France Tier-3: IPNL Tier-2: Subatech Tier-2: LAPP Clermont-Ferrand Tier-2: LPC Lyon Annecy Grenoble Tier-1: CC-IN 2 P 3 Tier-3: LPSC AF: CC-IN 2 P 3 Marseille Tier-3: CPPM 4

LCG-France CMS sites Tier-2: GRIF • CEA/DAPNIA Tier-3: IPHC • LLR Strasbourg Ile de France Tier-3: IPNL Lyon Tier-1: CC-IN 2 P 3 AF: CC-IN 2 P 3 5

Supported LHC VOs • All sites also support other virtual organizations, including the EGEE official VOs and local users T 1 Tier-2 Alice Atlas CMS LHCb CC-IN 2 P 3 l l AF Lyon l l GRIF (Paris Region) l l LAPP (Annecy) LPC (Clermont) l Subatech (Nantes) l CPPM (Marseille) Tier-3 l l l IPHC (Strastbourg) l l IPNL (Lyon) l l LPSC (Grenoble) l l 6

Tier-2 s planned contribution 7

Tier-2 s Planned Contribution in 2008 for all LHC experiments CPU Storage Share among experiments of all TIer-2 s resources 8

Tier-2 s & Tier-3 s technical group • Objectives § federate tier-2 & tier-3 technical teams and ensure their integration in the WLCG collaboration § coordinate the deployment of computing resources in tiers-2 & tiers-3 for simulation and analysis of LHC experiments • Organization § Strong collaboration w with tier-1 at CC-IN 2 P 3 w with national experiment representatives § Monthly (remote) meetings with representatives of french sites § Separate, monthly (remote) meetings dedicated to foreign sites § Work in coordination with the EGEE operations organization in the region w Based at the tier-1, which acts as EGEE Regional Operations Centre w Includes non LHC sites (both academic and private) § Dedicated mailing list, wiki (http: //lcg. in 2 p 3. fr/wiki/index. php/T 2 -T 3) and agenda category (http: //indico. in 2 p 3. fr/category. Display. py? categ. Id=61) 9

Tier-2 s & Tier-3 s technical group (cont. ) • In close contact with some associated sites to the LCG-France tier-1 § Europe w Belgium CMS Tier-2 w Romanian Federation ATLAS Tier-2 § Asia w IHEP China - ATLAS and CMS Tier 2 w ICEPP Japan - ATLAS Tier 2 • In close contact with § EGEE SA 1: Grid Operations (ROC support) § with Experiments : LHC computing tracking § with Network experts in IN 2 P 3 and Renater NREN 10

Summary • Additional resources coming from Tier-2 s & even Tier-3 initiatives § Not in competition with Tier-1 funding but funding support expected in 2009 § Significant effort in terms of Budget, infrastructure, human support… • Collaborative work § Within EGEE SA 1 w Resources and base line services § Within LCG-France w Tier-1 – Tier-2 s Tier-3 s integration w Enhance collaboration between sites experts and experiment representatives w Relation with the corresponding T 1 is fundamental § Working together with experiments w Experiment computing models define tasks distribution, data distribution and specific data flows between Tier-1 s and Tier-2 s 11

Backup slides 12

Networking infrastructure • Each tier-2 connected to RENATER backbone at 1 Gbps • Separate circuit for connecting tier-1 and foreign sites (through GEANT) at 10 Gbps § In operation since June 20 th 2007 • 10 Gbps links within GRIF § In operation since November 13 th 2007 13

Actual contribution (EGEE accounting) Normalised CPU time to a reference value to 1 k. SI 2000 Source: http: //www 3. egee. cesga. es/gridsite/accounting/CESGA/country_view. html 14

Actual contribution (cont. ) Source: http: //www 3. egee. cesga. es/gridsite/accounting/CESGA/country_view. html 15