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Page 1: Computing in HEP (plan)

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

Page 2: Computing in HEP (plan)

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

Page 3: Computing in HEP (plan)

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

Page 4: Computing in HEP (plan)

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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

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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/)

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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.

Page 10: Computing in HEP (plan)

Reporter: [email protected] -- From: PNPI

19 September 2000

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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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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.Petersburg

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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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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

BCFpc hardware (picture)

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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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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.

Page 20: Computing in HEP (plan)

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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.