Viacheslav LLyin

Information about Viacheslav LLyin

Published on September 27, 2007

Author: fazil

Source: authorstream.com

Content

HEP Computing Coordination in Russia:  HEP Computing Coordination in Russia V.A. Ilyin Moscow State University ICFA Workshop on Grid and Digital Divide, Daegu, 26 May 2005 Slide2:  Today we can say about coordination of HEP computing in Russia indeed. In 90s and before one can see the coordination within an experiment only. Why: - LHC dominating role in Russian HEP, and progress of the LCG project; - poor budgets, thus serious need in effective use of resources: computing and human. Grid is a technological basis for this coordination at national and inter-experiment level, with expansion on other sciences. Slide3:  Three regions are indicated on the map, where HEP centers are located: Moscow, St-Petersburg and Novosibirsk Slide4:  HENP institutes: St-Petersburg region: PNPI (Gatchina), St-P St. Univ. Novosibirsk: BINP Moscow: ITEP, Kurchatov Institute, Moscow St. Univ., MEPhI, Lebedev Institute Moscow region: JINR (Dubna), IHEP (Protvino), INR RAS (Troitsk) Russian LCG Tier2-Cluster:  Russian LCG Tier2-Cluster Conception: Cluster of institutional computing centers with Tier2 functionality and summary resources between canonical Tier2 and Tier1 for each experiment (ALICE, ATLAS, CMS, LHCb) Basic functions: analysis; simulations; users data support Host Tier1 in LCG infrastructure: CERN Plus: calibration/alignment/reconstructon (algorithms/DB/production) Thus: Real AOD – full sets for four experiments (all passes)  RU-TIER2 plus local sets of AOD Real (RAW)/ESD ~10%  RU-TIER2 Sim RAW/ESD/AOD for channels analyzed in Russia  RU-TIER2 Tier1  Slide8:  In July 2005 the computing model will be finalized by experiments and institutes. RuTier2 computing model (to MoU on LCG). Some basic statements: (truly) distributed facilities (CPU in share use, common disk space, two MSS centers) Russian GOC (CIC+ROC), also distributed model CA Distributed model - because there is no any institute in force to host Tier1 or, even, single Tier2 able to serve whole HEP community in Russia. Grid – technology adequate to our internal situation for science! Participation in Data Challenges in all four Experiments. Example: LHCb DCs in Russia:  Participation in Data Challenges in all four Experiments. Example: LHCb DCs in Russia 2002 130K events, 1% contribution only one centre (ITEP) 2003 1.3M events, 3% contribution (IHEP, ITEP, JINR, SINP MSU) 2004 9.0M events, 5% contribution started to use LCG-2/EGEE 2005 Through LCG-2/EGEE, PNPI and INR RAS are joining… 2004 DC Phase I  Russian Institutes to participate in the analysis of ALICE data:  Russian Institutes to participate in the analysis of ALICE data Resources for physics analysis:  Resources for physics analysis Number of active users – 50 5% of total Raw data and 10% of ESD are permanently kept of disks to be used for algorithm developments and analysis Volume of group DPD data is equal to 50% of AOD data Volume of user data – 1 TB per user for 2008 data only and varies proportionally to events number CPU power needed to analyze 2008 data only by one user – 15 kSI2k Total CPU power is proportional to the number of accumulated events and to the number of users: float CPU = Nuser*(Nev_year[i]/Nev_year[2008])*CPU_user_2008; ATLAS in Russia: RDMS in Physics analysis:  Heavy ions Quarkonia and Jet suppression (SINP MSU, LPI, HEPI Tbilisi) Global Observables (JINR, SINP MSU, HEPI Tbilisi) Coherent hard diffractive scattering of nuclei (ErPhI) Higgs qq  qqH  qqWW (ITEP, SINP MSU) qqH  qqZZ (KIPT) (H → ) + jets (SINP MSU) CP-violation at Higgs sector (SINP MSU) Diffractive Higgs production (IHEP, PNPI) Standard Model Single top production (IHEP, SINP MSU) Electroweak physics (JINR, GSTU, PHEP Minsk) B-physics (JINR) QCD (JINR, LPI, PNPI) High multiplexity events (LPI) Studies of Proton Diffractive Function (ErPhI) SUSY and beyond SM High pT muon pairs (JINR) High pT electrons (INR, IHEP) Search for SUSY particles (sleptons) (INR, IHEP) Search for heavy neutrino (INR) RDMS in Physics analysis RDMS CMS physics tasks: the estimates of requirements on computing resources preliminary analysis:  RDMS CMS physics tasks: the estimates of requirements on computing resources preliminary analysis Russian Data Intensive Grid http://www.egee-rdig.ru:  Russian Data Intensive Grid http://www.egee-rdig.ru Distributed ROC https://edms.cern.ch/file/479460/4/EGEE-SA1-ExecPlan-RU-v1.6.pdf IHEP, plus some functions provided by ITEP (user support), JINR (operational monitoring): - serve 10 RCs, 5 new RCs to appear in next 3 months and next 5 to the end of 2005 Distributed CIC - SINP MSU, RRC KI, KIAM RAS http://grid.sinp.msu.ru/index.php/index.php?meid=27&newlang=eng CA SINP MSU -> RRC KI in June 2005, http://lcg20.sinp.msu.ru/CA/ Contribution to DCs (all Expts) ~ 5 % Russia in LCG Service Challenge: starting session in October; 622 Mbps link to CERN will be available (Moscow-Amsterdam RBNet-GLORIAD, Amsterdam-CERN SURFNet agreed) RDIG today: more 100 members, (~) 10 sites, 3 (+3) applications, more 400 CPU and ~ 50 TB data Slide15:  LHC Computing Grid (LCG) – start in Sept 2003 LHC Computing Grid (LCG) – start in Sept 2003 Мониторинг EGEE (March 2005) http://goc.grid-support.ac.uk/gridsite/gocmain/:  Мониторинг EGEE (March 2005) http://goc.grid-support.ac.uk/gridsite/gocmain/ RDIG CIC:  RDIG CIC Core grid services, used by sites in the region: Resource Broker, BDII, MyProxy. 10 resource centers: IHEP, ITEP, IMPB RAS, JINR, KIAM RAS, PNPI, RRC KI, SINP MSU, GC RAS, NovSU More then 400 CPUs VO registrar services for Russian VOs RLS services for the Russian VOs Certification Authority for all Russian sites. EUGridPMA approved. More then 500 certificates issued. to migrate to RRC KI in June 2005. New VOs – most important activity now! VO management in EGEE and RDIG:  VO management in EGEE and RDIG VO definition: A grouping of individuals, often not bound to a single institution or enterprise, who, by reason of their common member ship of the VO, and in sharing a common goal, are granted rights to use a set of resources on the Grid. A VO can have a complex, hierarchical structure with groups and subgroups. This structure is needed to clearly divide VO users according to their tasks and home institutions. Steps to register a new VO:  Steps to register a new VO Name the VO. Follow the Acceptance procedure, i.e. register with the designated EGEE bodies. Set-up Populate Integrate There are options for some of these steps: technology (LDAP or VOMS); location where the VO database (VODB) resides; ... Integrating a VO:  Integrating a VO LDAP →VOMS Migration in EGEE:  LDAP →VOMS Migration in EGEE VO supported in EGEE:  VO supported in EGEE LHC Affiliated VO with 4 LHC experiments and Accelerators/Beam Physics: ALICE, ATLAS, CMS, LHCB, SixTrack technical VO DTEAM non-LHC Affiliated VO VOs for experiments in HEP: BaBar, D0, H1, Zeus Biomed (Biomedical activity); ESR (Earth Science Research) EGEODE (Expanding GEOsciences on DEmand) … many others on the way… Example: eEarth VO in RDIG :  Example: eEarth VO in RDIG eEarth: for geophysics and cosmic research tasks; participating institutes: Scmidt Institute of Physics of the Earth of Russian Academy of Sciences (IPE RAS) Centre of Geophysical Data Studies and Telematics Applications (CGDS) eEarth VO will provide: an access to world-wide distributed data; distributed computations, e.g for interactive cartography and data vizualisation.; monitoring of common computing resources loading to optimize the resources usage. Data Resources: SPIDR Mirror site in Moscow (Spase Physics Interactive Data Resource, http://spidr.ngdc.noaa.gov); Integrated Distributed Environmental Archive System (IDEAS); Satellite Archive Browse and Retrieval (http://sabr.ngdc.noaa.gov); Rapid Earthquake Determination Service; Geophysical Survey RAS, Obninsk RDIG supported VOs:  RDIG supported VOs In addition to centrally supported EGEE VOs (ALICE, ATLAS, CMS, LHCB, DTEAM) RDIG has a politics to support regional VOs (visible for EGEE) to support the national scientific projects and to test new application areas before including them into the global EGEE infrastructure Currently RDIG support the following VOs (http://rdig-registrar.sinp.msu.ru): eEarth (eEarth Project, http://www.e-earth.ru) PHOTON (projects PHOTON/SELEX http://egee.itep.ru/PHOTON, http://www-selex.fnal.gov) AMS (AMS project, http://ams.cern.ch ) a couple VOs for testing the Grid (RGStest and RDTEAM) Here some HEP experiments are living too, e.g. SVD U-70 Closest plans – to create and support VOs in the areas of: nuclear fusion; chemical physics; bio-engineering Moscow St. Univ. campus Grid …

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