MONARC%20-%20synopsis%20of%20recent%20activities - PowerPoint PPT Presentation
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MONARC%20-%20synopsis%20of%20recent%20activities
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40 computer specialists for ... Keep constant budget...follow technology. Await lHC requests from ... See raw data at CERN with Multi Gbit link(s) ... – PowerPoint PPT presentation
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Title: MONARC%20-%20synopsis%20of%20recent%20activities
1
MONARC - synopsis of recent activities
- Planning regional centres
- Models and simulation
2
Site and Network Architecture - Documents
- http//nicewww.cern.ch/les/monarc/base_config.htm
l - Rough Sizing Estimates for a Minimal Regional
Centre L Robertson - http//home.cern.ch/barone/monarc/RCArchitecture.
txt - Regional Centers for LHC computing
L Barone - http//home.fnal.gov/odell/monarc_report.html
- Monarc Report on Existing Computing Architectures
J Butler(FNAL) et al
3
Presentations from national RC contacts
(April 13)
- IN2P3/ France D. Linglin
- INFN / Italy F. Ruggieri
- LBNL / US (ATLAS) C. Tull
- Fermilab / US (CMS) M. Kasemann
- UK J. C. Gordon
- Germany A. Putzer
- KEK / Japan K. Amako
- Moscow / Russia V. Kolossov
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Key points from national presentations
- IN2P3 D Linglin
- Currently 1700 SI95, 2 TB disk, 0.6 PB tape
- 40 computer specialists for supporting
infrastructure - Use ATMEthernet..going to Gigabit Ethernet
- IBMHP platforms.adding SUN(Babar) PC
Linux(CDF) - Linux better than NT for farms but not
free!(human resource) - Keep constant budgetfollow technology
- Await lHC requests from experiments
- INFN F Ruggieri
- Want a national centre open to all experiments,
and with open h/w and s/w - Probably go for one national centre ?? (2002
decisionoperate end 2004) - See raw data at CERN with Multi Gbit link(s) to
CERN
5
- LBL( USA Atlas ) C Tull
- US Atlas 20 Atlas
- Raw data and reconstruction at CERN
- 200 TB DST data/yearal to go to RC
- 120 active users (40 active?)
- 2003ATLAS Data Challenge
- 200550K SI95, 50 TB disk, data comes by tape
- ?? (ANL,BNL,LBL) distributed organisation.have
obtained 40 MB/s on network tests - FNAL(USA CMS) M Kasemann
- US CMS20 CMS
- Raw data and reconstruction at CERN
- 2005.90K SI95, 40 TB disk (and add 40 TB/year)
- All phases of R/D and operation managed and
operated at FNAL(as for Run 2) - COSTS
- To 2005 10M ( 35 FTEs)
- Operation 3M /yr. (30 people)
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- RAL(UK) J Gordon
- Experiments are planning to fund facilities at
RAL (e.g. CDF) - Babar have money for 12.5 TB (6 at RAL and rest
at 9 institutes) - LHCb (Liverpool) have money for PC MC farm
- RAL await LHC/UK planningexperiments plan
expenditure as for detectors?? - UK ATLAS want o bid for a regional centre but
await MONARC results - Germany A Putzer
- Just beginning national discussions
- Particle Physics would like national centre for
all 4 experiments (but no money!) - There will be a proposal from all 4 experiments
by end 99 - KEK (Japan) K Amako
- Only ATLAS involved (17 institutes)but not all
convinced of need! - Human Resources for centre is a big issue
- Currently working on Objectivity evaluations in
distributed environment - ITEP Moscow V Kolossov
- Proposal being made for centre at Moscow
(involving 10 inst. In Moscow area) (but also
supported by JINR etc.) - 2106 MIPS (50K SI95), 50 TB disk, 50 PB tape,
622 Mb/s links - Prototype this year
- 8 Pentium Pcs (Linux and LHC)
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Summary points from discussion
- Major issues
- Multiple or single experiment centres??
- Staffing of centres
- How to get funding of all this into experiment
planning? - Suggestions for how to move forwards
- Remember it is the experiments who must provide
the detailed planning and funding
requests.MONARC is an R/D project providing
input to experiment planning - ATLAS/CMS have Technical Reports for computing
due end 99these should include input from MONARC
results allowing planning for computing resources - MONARC workshop May 10-11 will include say 3
hours on this topic
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