s belov jinr dubna on behalf of lcg mcdb group
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LCG Monte-Carlo Events Data Base (MCDB) : current status and plans

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S.Belov, JINR, Dubna on behalf of LCG MCDB group. LCG Monte-Carlo Events Data Base (MCDB) : current status and plans. Overview. Motivations To Provide Configuration, Book-keeping, Documentation, Storage for the Shared Monte-Carlo Event Files

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Presentation Transcript
overview
Overview
  • Motivations
    • To Provide Configuration, Book-keeping, Documentation, Storage for the Shared Monte-Carlo Event Files
    • To keep track of the full generation chain, Exploiting the Competences of Monte Carlo Experts and Monte Carlo Authors
  • CMS MCDB [hep-ph/0403100]http://cmsdoc.cern.ch/cms/generators/mcdb/
    • Only parton level files; AFS storage; No Searchable; No SQL
  • LCG MCDB[hep-ph/0404241] http://mcdb.cern.ch
    • Same authors + Additional human resources and technical support
    • Core software supported by LCG Software Project Infrastructure
          • MySQL; POOL; CASTOR (RFIO); CGI; Perl; Apache

1

the mcdb project structure
The MCDB Project Structure
  • Authors management and Authorisation block
  • Articles Management
  • Event Files management
  • Log system
  • Documentation
  • Users comments management
  • Search engine
  • Application Package Interface
  • Uniform Event Formats and Event Interfaces

2

existent mcdb subsystems
Existent MCDB subsystems
  • Users area:
  • Web site
  • Web catalog (physics categories)
  • Search engine
  • Downloading event files
  • Comments on articles
  • Authors area:
  • Articles Management
  • Event files management
  • Administrative area:
  • Authors management
  • Authorisation system
  • Physical categories/web catalog management
  • Articles management
  • Other subsystems:
  • Logging system

3

articles management 95 done
Articles Management (95% done)
  • Provide authors clear interface to document events as easy as possible
  • It is possible to use pre-entered information to describe generator, model, parameters, etc.
  • Present articles in a very structured way

9

event files management 90 done
Event Files Management (90% done)
  • Uploading to disk (as in CMS MCDB) : for files cashing - accomplished
  • Interface to CASTOR - in progress ( will be done in two weeks )
  • GRID and API interfaces (in the future)

14

authors management system done
Authors Management System (done)
  • Web interface to add, remove, block and edit author records and policies
  • Simple registration procedure

15

authorisation system 95 done
Authorisation System(95% done)
  • Based on CERN AFS authorisation system
  • Direct connection with MySQL authors

management system

  • Grid-ecrtificate based authorization: in the future

16

logging and statistics system 20 done
Logging and statistics system(20% done)
  • Login operations
  • Implicit logs in database (e.g. creation or modification date)
  • Separate log files for different subsystems
  • Need to combine to uniform structure
  • Add structure to search engine

18

porting to scientific linux cern 3
Porting to Scientific Linux CERN 3
  • Installation of all nessesary software and packages
  • Detailed instructions how to setup MCDB from the very beginning
  • Ready-to-use MCDB version on pcitapi26.cern.ch under SLC3

19

conclusion working prototype is ready
Conclusion :working prototype is ready
  • We have a working version of MCDB

- Basic functionality is supported

- Deployed on http://pcitapi26.cern.ch

  • But still need to do a few important things in the nearest future:

- Adjusting operations with Castor ( in two weeks )

- Porting MCDB to mcdb.cern.ch under SLC3

- Making Web-interface more convinient to end-users

- Checking for resistance against any kind of faults

- API to collaborations software

- Cleanup of MCDB tree in CVS and installation scripts

20

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