Minutes of the Computing meeting held on 14 August 2000

Present: J.Harvey, K.Harrison, M.Needham, E Van Herwijnen, J.Closier, F.Loverre, I.Korolko, O.Callot,
              P.Mato, M.Frank, F.Ranjard, B.Hay, P.Bartalini, T.Ruf, F.Harris 

Minutes : Florence Ranjard

     1. status of the move of the LHCb web server to the central one (Eric)

• documents are accessible: through WEBLIB
  • to look at a document click on the URL --> Fulltext --> Portable Document Format
  • do not try Latex or pdf or ps..
• mailing lists are moved now: do not send mail to any mailing list before Wednesday 16 August.

  the server could be moved by the end of the month

    2. CVS server (Joel)

• Loic Brarda has installed the CVS server on plhcb30
  • It will be ready to be used for checkout to everybody.
  • only few registered people will be allowed to commit.
  • a mail will be sent around when it is ready.

     3. status of the Bookkeeping project (Joel)

• generator page is ready.
  • It is accessible from the main page
  • It created data cards on demand
  • Most commonly used event types are filled
  • P.Bartalini is ready to fill empty event types if necessary.
• enlarge the RUNSET ORACLE table to keep:
  • The run number of the pileup input file
  • The joblog URL: the address of the log file
    • still to be done
• navigation
  • run number  to get the result given by the run number selection
  • evtype to get the description
  • tape number to get the full content
  • program version number to get the release notes
    • ready by the end of the week

   3. COCOTIME questionnaire: Meeting with our referees (Joel)

• AFS project space : request +50Gb (240Gb allocated in 2000)
• Simulation : request 18MCUh  (6MCUh requested in 2000)
• Batch : request +2 Linux PCs (8 allocated in 2000)
• Disk pool : request +500Gb (900Gb allocated in 2000)
• Tape : request +300 slots ( 150 slots allocated in 2000)
  • if accepted LHCb will get in 2001:
    • AFS project space : 290 Gb
    • Simulation : 18MCUh
    • Batch : 10 Linux PCs
    • Disk pool : 1.4Tb
    • Tape : 450 slots
• It seems obvious that the L2/L3 trigger production will required external capacity:
  such as Liverpool been able to write onto tape.
• Joel will check the turn around on disk pool to make sure that 1.4Tb of disk pool are enough for next year.
• Joel and John feel that if any of these requests are found to be too low during 2001, they could be increased

    4. AFS project space (joel)

• Today 100Gb of disk are allocated to groups: they are not backed up
• The extra 140 Gb (allocated by COCOTIME in 2000) will be allocated to
  • groups depending of their current use.
  • users as working space : home directory is limited to 300Mb another 500Mb could be allocated as working space.
• With such disk space users will be capable to store data for their private needs.
  • production made by Eric and Agnieszka should
    • cover public needs
    • be done with released versions only.
• Joel will make a proposal to clean the SCRATCH space.

   5. SICBMC v234 and SICBDST v236 (Flr)

• These versions handle the new VELO geometry
  • These versions are NOT backward compatible:
    • RAWH produced with SICBMC v233 must be reconstructed and analyzed with SICBDST v235
    • RAWH produced with SICBMC v234 must be reconstructed and analyzed with SICBDST v236
  • They are installed but not yet released.
• Current production of DST2 with SICBDST v235 is currently stopped because of too many crashes in RICH code:
  • G.Wilkinson is looking at it.
• It is remembered that users should NOT call GSROTM to fill a rotation matrix but the LHCb utility UTROTD and then
  retrieve the rotation matrix number with UTROTM.

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next meeting :  21 August 2000 at 14:00