Reporter: [email protected] -- From: PNPI
19 September 2000
Computing in HEP (plan)
Introduction The scale of computing in LHC Regional Computing
– Russian Regional Computing Facility Institute Level Computing
– Computing cluster at PNPI– Computing cluster at Stony Brook
Conclusion
Reporter: [email protected] -- From: PNPI
19 September 2000
Introduction
PNPI - St. Petersburg Nuclear Physics Institute (http://pnpi.spb.ru)– High Energy Physics Division– Neutron Physics Department– Theory Physics Division– Molecular and Biology Physics Division
Reporter: [email protected] -- From: PNPI
19 September 2000
CSD responsibilities
HEPD Centralized Computing (http://www.pnpi.spb.ru/comp_home.html)– Computing Cluster– Computing Server
HEPD Local Area Network HEPD and PNPI Connectivity (excluding
terrestrial channel) HEPD and PNPI InfoStructure
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19 September 2000
High Energy Physics Division Computer LAN
About 200 hosts Most of them are 10Mbit/sec Central part of LAN consists of
100Mbit/sec segments (Full Duplex)– Based on 3Com Switches 3300
LAN is distributed over 5 buildings – Effective distance is about 800 m
Fiber Optic Cable is used in between buildings
Reporter: [email protected] -- From: PNPI
19 September 2000
Related Proposals
CERN GRID sitehttp://grid.web.cern.ch/grid/
– Particle Physics Data Grid (http://www.cacr.caltech.edu/ppdg/)
– High Energy Physics Grid Initiative (http://nicewww.cern.ch/~les/grid/welcome.html)
– MONARC Project (http://www.cern.ch/MONARC/)
Reporter: [email protected] -- From: PNPI
19 September 2000
What is an inspiration?
Last year (1999) that book became famous.
Immediately after a range of proposals were submitted to various agencies and funds.
Main idea is to create World Wide Computing Infrastructure.
Reporter: [email protected] -- From: PNPI
19 September 2000
RRCF in St.Petersburg
Possible partners– Petersburg Nuclear Physics Institute;– S.Petersburg University;– S.Petersburg Technical University;– Institute for High Performance Computing
& Data Bases;– RUNNET ?
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19 September 2000
Russian Reginal Computing Facility
Regional Computing Centre for LHC– CSD takes participation in Russian activity
in creating the Russian Regional Computing Centre for LHC (see http://www.pnpi.spb.ru/RRCF/RRCF)
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19 September 2000
RRCF in St.PetersburgComputing Power
Total Computing Capacity about 90K SPECint95
http://nicewww.cern/ch/~les/monarc/base_config.html
Pentium III/700 has about 35 SPECint95 About 2570 processors
– or about 640 machines for 4 processor – or 640/4 (institutes) = about 160 machines.
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19 September 2000
Computing Cluster
PC/II/400/128EIDE 6GB
PC/III/450/256EIDE 6GB
PC/II/266/256EIDE 5GB
Switch 100Mb
Dual PII/450/512Ultra2WideSCSI 18GB
http://www.pnpi.spb.ru/pcfarm RedHat 6.1CODINECERNlib
Root
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19 September 2000
Another Examplefor Computing Cluster
University at Stony Brook, Departnet of Chemistry, Laboratory of Nulear Chemistry
– DEC Alpha 4100 (500 MHz).– 32 machines (dual PIII/500, 256 MB);– Tape Robot for 3 TB;– RAID array 1.5 TB.
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19 September 2000
Problems
Security – against attacks from Internet and Intranet;– against unplanned data losses;
To keep up to date the software base on whole cluster.
To save network bandwidth by keeping locally the special cache for experimental data.
Appropriate Batch System.
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19 September 2000
Possible Plan for Small Physics Laboratory
To install the hardware: (3-5) PCs (about 0.8-1.3 GHz, 0.5GB of main memory, DLT stacker on the base DLT-8000, Switch with 1 Gbit uplink, etc., etc.).
To install the software: Linux, CERNlib, Objectivity/DB, GLOBUS, etc., etc.
To prepare and test logical connectivity to CERN and to Regional Computing Facility for LHC.
Reporter: [email protected] -- From: PNPI
19 September 2000
Conclusion
Relatively new situation for many small and midrange laboratories (like PNPI):– Main direction in HEP computing at PNPI is
to create good front-end for High Performance Computing Facilities plus MSS outside Institute.
– We have to collect all the available financial, technical, administrative resources and plan to work in close collaboration.
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