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CMS Experiment Data Processing
at RDMS CMS Tier 2 Centers
CMS Tier1 and Tier 2
Sites
V.Gavrilov1, I.Golutvin2, V.Ilyin3, 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, Ukraine
GRID’2012
JINR, Dubna, July 20, 2012
Composition of the RDMS CMS Collaboration
RDMS - Russia and Dubna Member States CMS Collaboration
Russia
Russian Federation
Dubna Member States
Armenia
Georgia
п‚· High Energy Physics Institute, Tbilisi
п‚· Institute for High Energy Physics, Protvino
п‚· Yerevan Physics Institute, Yerevan
State University, Tbilisi
п‚· Institute for Theoretical and Experimental Physics,
п‚· Institute of Physics, Academy of
Moscow
Science ,Tbilisi
п‚· Institute for Nuclear Research, RAS, Moscow
Belarus
п‚· Moscow State University, Institute for Nuclear Physics, п‚· Byelorussian State University, Minsk
Ukraine
Moscow
п‚· Research Institute for Nuclear п‚· Institute of Single Crystals of National
п‚· Petersburg Nuclear Physics Institute, RAS,
Problems, Minsk
Academy of Science, Kharkov
St.Petersburg
п‚· National Centre for Particle and High п‚· National Scientific Center, Kharkov
п‚· P.N.Lebedev Physical Institute, Moscow
Energy Physics, Minsk
Institute of Physics and Technology,
п‚· Research Institute for Applied
Associated members:
Kharkov
п‚· High Temperature Technology Center of Research & Physical Problems, Minsk
п‚· Kharkov State University, Kharkov
Development Institute of Power Engineering, Moscow
 Russian Federal Nuclear Centre – Scientific Research
Bulgaria
Institute for Technical Physics, Snezhinsk
п‚· Institute for Nuclear Research and
Uzbekistan
п‚· Myasishchev Design Bureau, Zhukovsky
Nuclear Energy, BAS, Sofia
п‚· Institute for Nuclear Physics, UAS,
п‚· Electron, National Research Institute, St. Petersburg п‚· University of Sofia, Sofia
Tashkent
JINR
п‚·Joint Institute for Nuclear Research, Dubna
the RDMS CMS Collaboration was founded in Dubna in September 1994
RDMS Participation in CMS Construction
RDMS Full
Responsibility
ME1/1
RDMS
Participation
ME
SE
EE
HE
HF
FS
RDMS activities in CMS
пЃ± Data Processing and Physics Analysis
H-like (125.2 GeV) п‚® Z0Z0 п‚® 4 пЃ­
пЃ± Reconstruction & Object Performance
пЃ± Calibration and alignment
пЃ± Monte Carlo simulation
ME1/1 muon chambers designed and
produced in Dubna
пЃ± Design, production and installation
of Detector System(Upgrade Activity)
RDMS CMS T2 association
Now
Future interest
Analysis Groups
Exotica:
T2_RU_JINR
HI:
T2_RU_SINP
Electroweak: T2_UA_KIPT
Object/Performance Groups
Muon:
T2_RU_JINR
JetMET-HCAL: T2_RU_ITEP
H-like п‚® Z0Z0 п‚® 2пЃ­2e
Exotica: T2_RU_INR
QCD:
Top:
FWD:
T2_RU_PNPI
T2_RU_SINP
T2_RU_IHEP
e-gamma-ECAL: T2_RU_INR
RDMS CMS in Physics analysis
Forward Physics
Observation of diffraction in minbias events at LHC
Study of 2 jet production in hard single diffraction
Study of 2 jet production in central diffraction
SINP, Erevan
Search for BFKL effects at di-jet production
ITEP,INR
Higgs
Search for Higgs bosons in decays into 2 photons, 4 leptons, 2 leptons
Kharkov
and 2 jets, 2 leptons and 2 neutrinos
QCD
Measurement of the gamma+jet cross-sections
SINP
Study of Bose-Einstein correlations
Study of jet shapes
JINR, ITEP, SINP
Study of jet fragmentation
ITEP
EWK
Measurement of DY muon pair production
Minsk, Gomel
Measurement of forward-backward asymmetry in muon pair production
Measurement of triple boson couplings
Top physics
Observing the t-channel single top process
SUSY
Search for sleptons and lepton flavor number violation
Exotics
Search for heavy neutrino and WR
SINP MSU
IHEP, SINP MSU, Erevan
IHEP, ITEP,
PNPI,
JINR,
ITEP,
MSU,
JINR, ITEP,
JINR
SINP MSU,
JINR,
JINR
Minsk
IHEP, SINP
INR
INR
CMS T2 requirements
Basic requirements to CMS VO T2 sites
for Physics group hosting:
a) info on contact 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: п‚і2 up and п‚і4 down
f) CMS Hammer Cloud test
“OK”
g) Nominal T2-site:
9.8 kHS06 of Processing Resources
620TB of Disk space:
30TB of Stage-‐Out Space
200TB of Group Space (100TB per group)
150TB of Central Space
120TB of Regional Space
120TB of User Space (~40 Users of 3TB each)
8
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
RDMS CMS sites availability during last month
Status of RDMS sites readiness on 18 July, 2012
( R –Ready;
NR – Not Ready)
CPU time consumed by CMS VO at all CMS sites and at RDMS CMS sites
(August 2011-July 2012)
267,434,620 kSI2K
All CMS sites
11% - consumed by Russian CMS users
RDMS CMS sites
RDMS CMS connectivity
1 Gbps (ITEP, SINP MSU, LPI)
1 Gbps
JINR (Dubna)
20 Gbps
INR RAS (Troitsk)
1 Gbps
PNPI (Gatchina)
1 Gbps
KIPT (Kharkov)
1 Gbps
SCPPHE (Minsk) 34 Mbps
ErPI (Erevan)
34 Mbps
IHEP (Tbilisi)
34 Mbps
INRNE (Sofia)
100 Mbps
Moscow
IHEP (Protvino)
Data transfer volumes and rates
(August 2011 – July 2012)
~ 400TB
~ 160TB
To Russian CMS sites
From Russian CMS sites
14
Data transfer volumes and rates
(August 2011 – July 2012)
~ 80TB
>5 TB
To T2_UA_KIPT site
From T2_UA_KIPT to CMS sites
15
CMS group-site associations for RU&UA sites:
Space summary
July, 2012
July, 2012
April, 2012
16
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
пЃ±Monitoring of detector systems
пЃ±Data Monitoring / Express Analysis
пЃ±Shift Operations (except for run
control)
пЃ±Communications of JINR shifter
with personal at CMS Control Room
(SX5) and CMS Meyrin centre
пЃ±Communications between JINR
experts and CMS shifters
пЃ± Coordination of data processing and
data management
пЃ±Training and Information
18
Summary
RDMS Computing infrastructure allows a proper support of the CMS
Data Processing and Analysis Tasks
пѓћ Tier-2 sites are fully satisfied to CMS Computing Requirements
пѓћ they are involved actively into data processing and analysis (as of
CMS Physics Groups associated sites)
пѓћ CMS Regional Operation Centers in JINR/MSU/IHEP/FIAN are
operated for remote monitoring of detector systems and data
express-analysis
A few sites want for increasing of their resources and operation
stability
A stable and successful operation of several RDMS CMS Tier2
centers and years of operating experience force us to the proposal
to create the LCG Tier-1 center as an integral part of the central
data handling service of the LHC Experiments in Russia (CMS
Tier-1 in Dubna)
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