SAM-Grid DØ Status
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SAM-Grid DØ Status. Addendum to SAM-Grid Demo Monte Carlo Production. http://d0db.fnal.gov/sam. Status. Working SAM-Grid (previous) Met all deliverables for GridPP GridFTP standard for DØ data transfers >50% DØ Production MC generated in UK

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Sam grid d status

SAM-Grid DØ Status

  • Addendum to SAM-Grid Demo

    • Monte Carlo Production

Iain Bertram

http://d0db.fnal.gov/sam


Status
Status

  • Working SAM-Grid (previous)

  • Met all deliverables for GridPP

    • GridFTP standard for DØ data transfers

    • >50% DØ Production MC generated in UK

  • Near Term Goal MC Production Running on SAM-Grid in UK

    • 3.6.6 Prototype SAM Monte Carlo Production system using Resource Broker 31-Mar-03

    • 3.6.9 Pilot SAM Grid for D0 users. 30-Sep-03

Iain Bertram


Mc production
MC Production

  • Runjob Package to integrate DØ production executables with SAM-Grid

    • Also used by FNAL-CMS Group

    • maintained and developed within UK

    • Used by all remote DØ production centres.

    • Being Considered as standard reconstruction interface for DØ.

    • Controls Metadata production

    • Uses macro script to control job.

Iain Bertram


Mc production outline
MC Production Outline

  • User Requests MC

    • Describes a virtual data set using keyword:value pairs

    • Stores Request in DØ database

  • <<<< Grid Here >>>>

  • Production Site

    • Gets next MC set

    • produces events and delivers to user

Iain Bertram


Mc production on sam grid
MC Production on SAM-Grid

  • Plan to run MC in the UK on a SAM-Grid by March

    • ICL, Lancs, Mancs, and RAL

    • Use Resource Broker to advertise MC site (Pure Condor)

    • Runjob controls execution on remote sites

    • store all output files using the Grid

  • Extensions

    • Automatic code installation

    • Data Reconstruction

  • Long Term: Generic User Job

Iain Bertram


Lessons
Lessons

  • Biggest Problem at DØ

    • Defining user datasets

    • Metadata is very complex and requires very good database table design

    • This complexity is necessary so users can find the data they need

    • Once have list of file all OK

  • Conclusion

    • rapid Progress, full steam ahead

Iain Bertram