Current Status and Plans RDMS CMS Computing: Current Status and Plans V.Gavrilov1, I.Golutvin2, O.Kodolova3, V.Korenkov2, L.Levchuk4, E.Tikhonenko2, S.Shmatov2 ,V.Zhiltsov 2 1- Institute of Theoretical and Experimental Physics, Moscow, Russia 2- Joint Institute for Nuclear Research, Dubna, Russia 3 – Skobeltsyn Institute of Nuclear Physics, Moscow, Russia 4 - National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov GRID’2014 Dubna, Russia, July 02, 2014

the RDMS CMS Collaboration was founded in Dubna in September 1994 Composition of the RDMS CMS Collaboration The Compact Muon Solenoid (CMS) is a high-performance general-purpose detector at the Large Hadron Collider (LHC) at CERN. RDMS, as a part of CMS experiment collaboration, - Russia and Dubna Member States CMS Collaboration Russia Russian Federation Institute for High Energy Physics, Protvino Institute for Theoretical and Experimental Physics, Moscow Institute for Nuclear Research, RAS, Moscow Moscow State University, Institute for Nuclear Physics, Moscow Petersburg Nuclear Physics Institute, RAS, St.Petersburg P.N.Lebedev Physical Institute, Moscow Associated members: High Temperature Technology Center of Research & Development Institute of Power Engineering, Moscow Russian Federal Nuclear Centre – Scientific Research Institute for Technical Physics, Snezhinsk Myasishchev Design Bureau, Zhukovsky Electron, National Research Institute, St. Petersburg Dubna Member States Armenia Yerevan Physics Institute, Yerevan Belarus Byelorussian State University, Minsk Research Institute for Nuclear Problems, Minsk National Centre for Particle and High Energy Physics, Minsk Research Institute for Applied Physical Problems, Minsk Bulgaria Institute for Nuclear Research and Nuclear Energy, BAS, Sofia University of Sofia, Sofia Georgia High Energy Physics Institute, Tbilisi State University, Tbilisi Institute of Physics, Academy of Science ,Tbilisi Ukraine Institute of Single Crystals of National Academy of Science, Kharkov National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov Kharkov State University, Kharkov Uzbekistan Institute for Nuclear Physics, UAS, Tashkent JINR Joint Institute for Nuclear Research, Dubna the RDMS CMS Collaboration was founded in Dubna in September 1994

RDMS Full Responsibility RDMS Participation in CMS Construction RDMS Full Responsibility RDMS Participation ME1/1 ME SE EE HE HF FS

RDMS activities in CMS Data Processing and Physics Analysis Reconstruction & Object Performance Calibration and alignment Monte Carlo simulation Design, production and installation of Detector System(Upgrade Activity) H-like (125.2 GeV)  Z0Z0  4  ME1/1 muon chambers designed and produced in Dubna

RDMS CMS T2 association Now Future interest 08/10/09 RDMS CMS T2 association Now Future interest Analysis Groups Exotica: T2_RU_JINR Exotica: T2_RU_INR HI: T2_RU_SINP QCD: T2_RU_PNPI Beyond the 2-nd Generation (B2G): T2_UA_KIPT Top: T2_RU_SINP FWD: T2_RU_IHEP Object/Performance Groups Muon: T2_RU_JINR e-gamma-ECAL: T2_RU_INR JetMET-HCAL: T2_RU_ITEP H-like  Z0Z0  22e 5 5

RDMS CMS in Physics analysis Forward Physics Observation of diffraction in minbias events at LHC (SINP MSU) Study of 2 jet production in hard single diffraction (IHEP, SINP MSU, YerPhi Yerevan) Study of 2 jet production in central diffraction (IHEP, ITEP, SINP, YerPhi Yerevan) Search for BFKL effects at di-jet production (PNPI, ITEP,INR) Measurement of azimuthal decorrelations of Mueller-Navelet dijets (ITEP, PNPI, INR) QCD Measurement of the gamma+jet cross-sections (JINR, ITEP, SINP) Study of jet production: jet shapes, jet fragmentation, jet multiplicity, multiplicity in jest etc (JINR, SINP MSU, ITEP, LPI) Standard Model Physics Measurement of DY muon pair production and forward-backward asymmetry (JINR, KIPT Kharkov, Minsk, Gomel) Measurement of triple boson couplings (Minsk) Study of EW Z boson production with two jets (MSU, ITEP) Search for WW scattering (ITEP) Top physics Observing the t-channel single top process (IHEP, SINP) Heavy Ion QGP hard probes (heavy quarkonia and jets) and soft probes (elliptic flow) SINP MSU, LPI Higgs Search for Higgs bosons in decays into 2 photons, 4 leptons, 2 leptons and 2 jets, 2 leptons and 2 neutrinos (JINR, ITEP, MSU, KIPT Kharkov) Higgs boson decay to 2 muons (MSU, ITEP) SUSY Search for sleptons and lepton flavor number violation (INR) Exotics Search for heavy neutrino and WR (INR) Search for new resonances (extra dimensions, Z’ and other exotic states) in DY (JINR) Search for non-resonance di-muon signals from ADD and compositeness (JINR) Search for microscopic black holes (JINR)

CMS Distributed Computing Model Distributed computing resources managed using Grid technologies Centers interconnected via private and national high-capacity Ethernet networks Centers provide mass storage (disk/tape servers) and CPU resources (x86 CPUs) Hierarchical tiered structure Detector data prompt reconstruction and calibration at the Tier-0 at CERN Data intensive processing at Tier-1’s User analysis and simulation production at Tier-2’s Data tape archival at Tier-0 and Tier-1’s Data caches at Tier-2s

CMS T2 requirements Basic requirements to CMS VO T2 sites 08/10/09 Basic requirements to CMS VO T2 sites for Physics group hosting: a) persons responsible for site operation b) site visibility (BDII) c) availability of CMSSW actual version d) regular file transfer test “OK” e) Certified links with CMS T1: 2 up and 4 down f) CMS Hammer Cloud test “OK” g) Nominal T2-site: 10.9 kHS06 of Processing Resources 810 TB of Disk space: 30 TB of Stage Out Space 250 TB of Group Space (125 TB per group) 200 TB of Central Space 170 TB of Local Space 160 TB of User Space (~40 Users of 4 TB each) h) “Typical” T2-center: 2014 2015 7.0 kHS06 of Processing Resources 8.7 kHS06 of Processing Resources 530 TB of Disk space 551 TB of Disk space 8 8 8

T2 readiness requirements 08/10/09 T2 readiness requirements Site visibility and CMS VO support Availability of disk and CPU resources Daily SAM availability > 80% Daily HummerCloud tests efficiency > 90% Commissioned (active) links TO Tier-1 sites ≥ 2 Commissioned (active) links FROM Tier-1 sites ≥ 4 9 9

RDMS CMS sites availability during last month

Contribution of Russia into a number of jobs completed at CMS T2-sites (July 2013- June 2014): 3.13 % - 9th in the countries rank

Job Summary at RDMS CMS Sites for 2014 as at the CMS Dashboard

Data transfer volumes and rates (August 2013 – July 2014) ~ 220TB To Russian CMS sites 260 TB From Russian CMS sites

Data transfer volumes and rates (August 2013 – July 2014) ~ 18TB To T2_UA_KIPT site ~ 32 TB From T2_UA_KIPT to CMS sites

CMS group-site associations for RU&UA sites: Space summary April, 2012 July, 2014 July, 2014 July, 2012

Data transfers statistics 2010-2013 From the middle of 2010 to the end of 2013 2 Petabytes data have been transferred to RDMS CMS sites. By the moment about 1.5 Petabytes of CMS data are stored at RDMS CMS sites ( 0.5 Petabytes are the data of CMS physical groups with which the RDMS sites are associated).

JINR-KIPT Common Activities in CMS Computing Support Cooperation between JINR and KIPT (Kharkov, Ukraine) has been supported by 3 grants of Russian Foundation for Basic Research (RFBR) and Ukrainian Academy of Science: 08-07-90410-Ukr_a (2008-2009) “Preparation of LIT JINR (Dubna) and NSC KIPT (Kharkov) computing centers for CMS (CERN) distributed data analysis on the base of grid technologies” – completed (see: Bunetsky O. O. et al. , Preparation of NSC KIPT and JINR Grid-Infrastructures for Data Analysis at the CMS Experiment (CERN), P11-2010-11, Dubna, 2010, http://www1.jinr.ru/Preprints/2010/011%28P11-2010-11%29.pdf) 10-07-90400-Ukr_а (2010-2011) “Support and development of LIT JINR and NSC KIPT grid-infrastructures for CMS distributed data processing during the first two years of LHC operation” – completed 12-07-90402-Ukr_а (2012-2013) “Data processing at the LIT JINR and NSC KIPT T2-centers of the CMS grid infrastructure at high rate of the Large Hadron Collider luminosity increase” – in a progress

RDMS Remote Operation Centres JINR ROC was founded in 2009 as a part of GRID-based JINR Tier-2 MSU/IHEP ROCs were started-up two years after Monitoring of detector systems Data Monitoring / Express Analysis Shift Operations (except for run control) Communications of JINR shifter with personal at CMS Control Room (SX5) and CMS Meyrin centre Communications between JINR experts and CMS shifters Coordination of data processing and data management Training and Information

About 50 Russian physicists are CMS VO members Example of Physics analysis with GRID in the CMS Experiment with Participation of Russian Physicists Data and Monte-Carlo simulated events are distributed among N sites Job is prepared at UI with CRAB submission tool installed (CMS SW on top of LCG middleware) Run CRAB jobs: job is going to the site where events (Data or MC) are located Monitoring through Dashboard (CERN IT tool) Get results from SE to Local Desktop Final analysis at local desktop Measurement of the EW Z boson and two jets in pp collisions at √s = 7 TeV has been carried out using an integrated luminosity of 5 fb−1. σ (7 TeV)= 154 ± 24 (stat.) ± 46 (exp. Syst.) ± 27 (th. syst.) ± 3 (lum.) fb (mll > 50 GeV, pTj > 25 GeV, |η j|< 4.0, mjj >120 GeV) ref: CMS-PAS-FSQ-12-019

Summary Nearest plans: 08/10/09 Summary RDMS Tier2 sites contributes in the CMS Data Processing and Analysis Tasks they are involved actively into data processing and analysis (as of CMS Physics Groups associated sites) CMS Regional Operation Centers in JINR/MSU/IHEP/FIAN are operated for remote monitoring of detector systems and data express-analysis There is still a number of problems (technical, financial etc.) preventing RDMS Tier2 sites to increase their resources and operation stability. By the moment not all RDMS T2 sites are satisfied to CMS Computing Requirements A stable and successful operation of several RDMS CMS Tier2 centers and years of operating experience lead to creation the CMS Tier-1 center in Russia as an integral part of the central data handling service of the CMS Experiment (CMS Tier-1 in Dubna) (see today presentation of Tatiana Strizh) Nearest plans: - to continue support RDMS CMS sites with increasing CPU resources by 14% and disks resources by 4% in 2014 and by 25% and 16% in 2015 accordingly; in further years – increasing of resources by 10-15% annually. 20 20