I.Golutvin1, A.Kiriianov2 O.Kodolova3, V.Kotliar 4, V.Korenkov1, Status of the RDMS CMS Computing: I.Golutvin1, A.Kiriianov2 O.Kodolova3, V.Kotliar 4, V.Korenkov1, L.Levchuk5, Y.Lyublev6 , E.Tikhonenko1, G. Safronov6 , L.Stepanova7 S.Shmatov1,V.Zhiltsov 1 1- Joint Institute for Nuclear Research, Dubna, Russia 2- B.P.Konstantinov Petersburg Nuclear Physics Institute, Gatchina NRC "Kurchatov Institute“, Russia 3 – Skobeltsyn Institute of Nuclear Physics, Moscow, Russia 4- Institute Of High Energy Physccs, Protvino, NRC "Kurchatov Institute“, Russia 5 - National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov, Ukraine 6- Institute of Theoretical and Experimental Physics, NRC "Kurchatov Institute“, Moscow, Russia 7- Institute for Nuclear Research RAN, Moscow, Russia GRID’2016, Dubna, Russia, July 05, 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

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 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

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 6 6

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) About 40 RDMS CMS physicists are members of the CMS VO

CMS T2 requirements 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) Active links: Certified links with CMS T1: 2 up and 4 down f) CMS Hammer Cloud test “OK” g) Nominal T2-site for 2016 20 kHS06 of Processing Resources 1085 TB of Disk space (The historical distinction between central and group space is considered obsolete by now, with the Dynamic Data Placement taking care of T2 dataset allocation and cleaning - see CMS Document 12888-v2) 8 8 8

T2 readiness requirements 08/10/09 T2 readiness requirements https://twiki.cern.ch/twiki/bin/view/CMS/SiteSupportSiteStatusSiteReadiness Site visibility and CMS VO support Availability of disk and CPU resources Daily SAM availability >= 80% Daily HummerCloud tests efficiency >= 80% Commissioned (active) links TO Tier-1 sites ≥ 2 Commissioned (active) links FROM Tier-1 sites ≥ 4 Good links: If more than half of the links with active transfers fall below a 50% transfer quality, Site Readiness considers the site failed. 9 9

Status of RDMS CMS sites (July, 2016) (sites as in the CMS sitedb) T2_RU_IHEP - OK T2_RU_INR – WR* (downtime due to temporary connectivity problems) T2_RU_ITEP – WR (problems to be resolved in the nearest time) T2_RU_JINR - OK T2_RU_PNPI - WR T2_RU_SINP – WR (no funding to replace equipment; it is expected to get funding until early 2017) T2_UA_KIPT - OK T3_BG_NCPHEP – critical state T3_BG_UNI_SOFIA - OK T3_RU_FIAN – downtime T3_RU_MEPHI – even not in the Dashboard *) “WR” – “waiting room” (site is not “OK”) It is planned to include MIPT (Moscow Institute of Physics and Technology, State University, Dolgoprudny) resources into the CMS global computing infrastructure (as Tier2 or Tier3 is not defined yet)

Contribution of RDMS (Russia&Ukraine) sites into a number of jobs completed at CMS T2-sites (July 2015- June 2015): 2.01 % - 9th in the countries rank

Data transfer volumes and rates (August 2015 – July 2016) 1705 TB To Russian CMS sites 902 TB From Russian CMS sites

Data transfer volumes and rates (August 2015 – July 2016) 823 TB To T2_UA_KIPT site 47 TB From T2_UA_KIPT to CMS sites

RDMS CMS Remote Operation Centres JINR ROC was founded in 2009 as a part of GRID-based JINR Tier-2 In 2012 MSU and some later – ITEP and FIAN ROCs were started-up. MSU ROC serves for HCAL detector shifts and Computing central shifts. 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

08/10/09 Summary A stable and successful operation of CMS Tier-1 in Dubna (see today presentation of Tatiana Strizh) RDMS Tier2 sites contribute 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 (financial for the most part) 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 15 15