1. Status of RDMS CMS Computing
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
NEC’2015
Becici, Montenegro, October 2, 2015

2. the RDMS CMS Collaboration was founded in Dubna in September 1994
Composition of the RDMS CMS Collaboration
RDMS - 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

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

4. 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

5. 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

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
Higgs
Search for Higgs bosons in decays into 2 photons, 4 leptons, 2 leptons JINR, ITEP, MSU, KIPT Kharkov
and 2 jets, 2 leptons and 2 neutrinos
Higgs boson decay to 2 muons MSU, ITEP
Higgs decay into invisible modes
QCD
Measurement of the gamma+jet cross-sections JINR, ITEP, SINP
Study of Bose-Einstein correlations JINR
Study of jet shapes JINR, ITEP, SINP
Study of jet fragmentation SINP MSU, ITEP
B2G
Measurement of DY muon pair production JINR, KIPT Kharkov, Minsk, Gomel
Measurement of forward-backward asymmetry in muon pair production JINR
Measurement of triple boson couplings Minsk
Study of EW Z boson production with two jets at 7 and 8 TeV MSU, ITEP
Search for WW scattering at 8 TeV ITEP

7. RDMS CMS in Physics analysis (cont.)
Top physics
Observing the t-channel single top process IHEP, SINP
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
Heavy Ion
QGP hard probes (heavy quarkonia and jets) and soft probes (elliptic flow) SINP MSU, LPI

8. The project of launching Tier1 at JINR
In November, 2011 at the suggestion of A.A. Fursenko at a session of the Committee on Russia-CERN cooperation, a decision was accepted on the creation in Russia of a Tier1-level center for LHC experiments on the base of NRC "Kurchatov institute" and JINR.
On September 28, 2012, a session of the Supervisory Council of WLCG project approved a work schedule on the creation of Tier1 in Russia.
First stage (December, 2012) - creation of a prototype of Tier1 at NRC KI and at JINR.
Second stage (November, 2013) - installation of equipment for the base Tier1 center, its testing and finishing up to required functional characteristics.
Third stage (March, 2015) – finalization of this complex and commissioning a full-scale Tier1 center for СМS in JINR
In the sequel, a systematic increase of computing capacity and data storage is needed in accordance with the experiment requirements.
the ex
The details on Tier1 in at JINR see in today’s talk of Tatiana Strizh “JINR TIER-1 Centre for the CMS Experiment at LHC.”

9. 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:
7.0 kHS06 of Processing Resources kHS06 of Processing Resources
530 TB of Disk space TB of Disk space 9 9 9

10. 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 > 80%
Commissioned (active) links TO Tier-1 sites ≥ 2
Commissioned (active) links FROM Tier-1 sites ≥ 4 10 10

11. RDMS CMS T2-sites availability during last month

12. Status of RDMS sites readiness (August 16 - September 4, 2015) ( R –Ready; NR – Not Ready)

13. All CMS sites 2,400,961,840 HEPSPEC06 RDMS CMS sites
CPU time consumed by CMS VO at all CMS sites (October 2014-September2015)
6% = 152,255,884 HEPSPEC06
All CMS sites
2,400,961,840 HEPSPEC06
38% - consumed by Russian CMS users
RDMS CMS sites

14. 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:
Ukr_a ( ) “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), P , Dubna, 2010,
Ukr_а ( ) “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
Ukr_а ( ) “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”

15. 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

16. 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

17. CMS Tier1, Tier 2 & Tier3 Sites
CMS Tier1 at JINR
Analysis Groups
Exotica: T2_RU_JINR
HI: T2_RU_SINP
B2G: T2_UA_KIPT
Object/Performance Groups
Muon: T2_RU_JINR
JetMET-HCAL: T2_RU_ITEP
RDMS CMS T2 association:

18. CMS data transfers to/from RDMS CMS sites

19. 08/10/09
Summary
The main achievement of this year is a start-up of the CMS Tier1center at JINR in a full volume and its stable operation
RDMS sites contribute in the CMS Data Storage, Processing and Analysis Tasks, in particular
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 19 19