Ivanov V'V'

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Grid computing for CBM at
JINR/Dubna

• Ivanov V.V.
• Laboratory of Information Technologies,
• Joint Institute for Nuclear Research, Dubna,
  Russia
• CBM Collaboration meeting, GSI, Darmstadt
• 9-12 March, 2005

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Main directions of this activity includes

• Integration and shared use of informational and
  computational resources, distributed
  databases, electronic libraries. Realisation of
  the Dubna-Grid project.
• Use of modern systems for storing and processing
  large-scale arrays of model and experimental
  data.
• Possibility of remote participation of experts
  of the JINR Member States at the basic
  facilities of JINR.
• Joint work on managing corporate networks,
  including the problems of control, analysis,
  protection of networks, servers, information.
• Joint mastering and application of the
  Grid-technologies for physical experiments and
  participation in creation of national
• Grid-segments.
• Joint work on creation of distributed
  supercomputer applications.

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JINR telecommunication links
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JINR Gigabit Ethernet infrastructure (2003-2004)
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Star-like logical topology of the JINR Gigabit
Ethernet backbone with the Cisco Catalyst 6509
and Cisco Catalyst 3550 switches in the center
of the core, and the Cisco Catalyst 3550 switches
in 7 JINR divisions (in 6 Laboratories and in
the JINR Administration), and Cisco Catalyst 3750
switch in LIT.
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In the year 2004 The network of Laboratory of
Information Technologies was left as a part of
the JINR backbone, meanwhile the rest JINR
divisions (7) were isolated off backbone with
their Catalyst 3550 switches.
Controlled-access (Cisco PIX-525 firewall) at the
entrance of the network.
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• Characteristics of the network
• High-speed transport structure(1000 Mbit/sec)
• Security-Controlled access (Cisco PIX-525
  firewall) at the entrance of the network
• Partially isolated local traffic (6 divisions
  have their subnetworks with Cisco Catalyst 3550
  as a gateway).

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Network Monitoring Incoming and outgoing traffic
distribution
Total year 2004 36.1 Tb Incoming
Total year 2004 43.64 Tb Outgoing
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JINR Central Information and Computing Complex
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Russian regional centre the DataGrid cloud
LCG Tier1/Tier2 cloud
FZK
CERN
Grid access

Gbits/s
RRC-LHC
Tier2 cluster
Regional connectivity cloud backbone
Gbit/s to labs 1001000 Mbit/s
Collaborative centers
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LCG Grid Operations CentreLCG-2 Job Submission
Monitoring Map
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LHC Computing Grid Project (LCG)

• LCG Deployment and Operation
• LCG Testsuit
• Castor
• LCG AA- GenserMCDB
• ARDA

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Main results of the LCG project

• Development of the G2G (GoToGrid) system to
  maintain installation and debug the LCG site.
• Participation in the development of the CASTOR
  system elaboration of a subservient module that
  will be served as a garbage collector.
• Development of structure of the database,
  creation of a set of base modules, development of
  a WEB-interface for creation/addition of articles
  to the database (description of files with events
  and related objects) http//mcdb.cern.ch
• Testing a reliability of data transfer on the
  GidFTP protocol implemented in the Globus Toolkit
  3.0 package.
• Testing the EGEE middleware components (GLite)
  Metadata and Fireman catalogs.
• Development of a code of constant WMS (Workload
  Management System) monitoring the INFN site
  gundam.chaf.infn.it in the testbed of a new EGEE
  middleware Glite.

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LCG AA- GenserMCDB

• Correct Monte Carlo simulation of complicated
  processes requires rather sophisticated expertise
• Different physics groups often need same MC
  samples
• Public availability of the event files speeds up
  their validation
• Central and public location where well-documented
  event files can be found
• The goal of MCDB is to improve the communication
  between Monte Carlo experts and end-users

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Main Features of LCG MCDB

• The most important reason to develop LCG MCDB
• is to expel the restrictions of the CMS MCDB
• An SQL-based database
• Wide search abilities
• Possibility to keep the events at particle level
  as well as at partonic level
• Large event files support storage Castor in
  CERN
• Direct programming interface from LCG
  collaboration software
• Inheritance of all the advantages of the
  predecessor - CMS MCDB

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MCDB Web Interface
http//mcdb.cern.ch
Only Mozilla Browser Supported (for the time
being)
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High Energy Physics WEB at LIT
Idea Create a server with WEB access to
computing resources of LIT for Monte
Carlo simulations, mathematical support and etc.

• Provide physicists with informational and
  mathematical support
• Monte Carlo simulations at the server
• Provide physicists with new calculation/simulation
  tools
• Create copy of GENSER of the LHC Computing GRID
  project
• Introduce young physicists into HEP world.

Goals
HIJING Web Interface
HepWeb.jinr.ru will include FRITIOF, HIJING,
Glauber approximation, Reggeon approximation,
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Fixed Bug in the HIJING Monte Carlo
Model secures energy conservation
V.V. Uzhinsky (LIT)
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• G2G is a web-based tool to support the generic
  installation and configuration of (LCG) grid
  middleware
• The server runs at CERN
• Relevant site-dependent configuration information
  is stored in a database
• It provides added-value tools, configuration
  files and documentation to install a site
  manually (or by a third-party fabric management
  tool)

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• G2G features are thought to be useful for ALL
  sites
• First level assistance and hints (Grid Assistant)
• Site profile editing tool
• for small sites
• Customized tools to make manual installation
  easier
• for large sites
• Documentation to configure fabric management
  tools
• and for us (support sites)
• Centralized repository to query for site
  configuration

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Deployment Strategy
Current LCG Release (LCG-2_2_0)
Next LCG Release
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EGEE (Enabling Grids for E-sciencE)

• Participation in the EGEE (Enabling Grids for
  E-sciencE) project together with 7 Russian
  scientific centres creation of infrastructure
  for application of Grid technologies on a
  petabyte scale. The JINR group activity includes
  the following main directions

SA1 - European Grid Operations, Support and
Management NA2 Dissemination and Outreach
NA3 User Training and Induction NA4 -
Application Identification and Support
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Russian Data Intensive GRID (RDIG) Consortium

EGEE Federation
Eight Institutes made up the consortium RDIG
(Russian Data Intensive GRID) as a national
federation in the EGEE project. They are IHEP
- Institute of High Energy Physics (Protvino),
IMPB RAS - Institute of Mathematical Problems in
Biology (Pushchino), ITEP - Institute of
Theoretical and Experimental Physics (Moscow),
JINR - Joint Institute for Nuclear Research
(Dubna), KIAM RAS - Keldysh Institute of
Applied Mathematics (Moscow), PNPI - Petersburg
Nuclear Physics Institute (Gatchina), RRC KI -
Russian Research Center Kurchatov Institute
(Moscow), SINP-MSU - Skobeltsyn Institute of
Nuclear Physics (MSU, Moscow).
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LCG/EGEE Infrastructure

• The LCG/EGEE infrastructure has been created that
  comprises managing servers, 10 two-processor
  computing nodes.
• Software for experiments CMS, ATLAS, ALICE and
  LHCb has been installed and tested.
• Participation in mass simulation sessions for
  these experiments.
• A server has been installed for monitoring
  Russian LCG sites based on the MonALISA system.
• Research on the possibilities of other systems
  (GridICE, MapCenter).

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Participation in DC04
Production in frames of DCs was accomplished at
local JINR LHC and LCG-2 farms CMS 150 000
events (350 GB) 0.5 TB data on B-physics was
downloaded to the CCIC for the analysis the JINR
investment in CMS DC04 was at a level of 0.3.
ALICE the JINR investment in ALICE DC04 was
at a level of 1.4 of a total number of
successfully done Alien jobs. LHCb the JINR
investment in LHCb DC04 - 0.5.
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Dubna educational and scientific network
Dubna-Grid Project (2004)
Laboratory of Information Technologies, JINR
University "Dubna" Directorate of programme for
development of the science city Dubna University
of Chicago, USA University of Lund, Sweden
Creation of Grid-testbed on the basis of
resources of Dubna scientific and educational
establishments, in particular, JINR Laboratories,
International University "Dubna, secondary
schools and other organizations
More than 1000 CPU
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City high-speed network The 1 Gbps city high
speed network was built on the basis of a single
mode fiber optic cable of the total length of
almost 50 km. The total number of network
computers in the educational organizations
includes more than 500 easily administrated
units.
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Network of the University Dubna The computer
network of the University Dubna incorporates
with the help of a backbone fiber optic highway
the computer networks of the buildings housing
the university complex. Three server centres
maintain applications and services of computer
classes, departments and university subdivisions
as well as computer classes of secondary schools.
Total number of PCs exceeds 500
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Concluding remarks

• JINR/Dubna Grid segment and personal are well
  prepared to be effectively involved into the CBM
  experiment MC simulation and data analysis
  activity
• Working group prepare a proposal on a common
  JINR-GSI-Bergen Grid activity for the CBM
  experiment
• Proposal present at the CBM Collaboration
  meeting in September