LHCb Core Software Meeting

Date and Location

16 June 2007
10:30 - 12:16
CERN (2-R-030)


Gloria, Hubert, Marco Ca., Marco Cl. (minutes), Markus, Matt, Philippe, Stefan





  • The LHCb Computing Project is now splitted in two: "Physics Software" and "Core Computing and Software"
    • Core Computing and Software Project Leader is Philippe, the leaders for the sub-projects are
      • Framework and Applications Integration: Marco Cattaneo
      • Computing Operations: Nick Brook
      • DIRAC: Andrei Tsaregorodtsev
      • Distributed Analysis Framework: Ulrik Egede
      • Computing Resource Coordinator: Umberto Marconi
    • Marco Ca. will represent LHCb in the Architects Forum (Philippe will be present for GRID deployment issues)
  • In the afternoon there will be a small meeting to discuss the plan for transient/persistent separation of event model classes.
    • Gloria reminded that there will be some problem during the migration to the new HepMC (that does not use CLHEP any longer).

Software Releases

Gaudi (Hubert)

  • Release notes ready
  • Problem with LCGCMT tarballs and the LCGCMT InstallArea (we get twice the files). Will be fixed by changing the script to make the tarball (in LHCb).
  • The problem in LCG_Policy for SLC 4.5 has been fixed
  • Gaudi now works on AMD64 (tested with GaudiExamples)

LHCb, Boole, Brunel (Marco Ca.)

  • The scheduled plan for the next release has been posted.
  • GaudiObjDesc v10r0 (not for LHCb v22r6) will contain changes to customize the namespace of event classes and the modification for printing of enums
  • RTTC versions of BOOL and Brunel will be archived
    • the current way the projects are archived causes a loss of the hand-written HTML files containing the description of the version. Hubert will modify the script (we will have a page for archived version as the one in Gauss)

Gauss (Gloria)

  • Work done from Cambridge to port Gauss to win32
    • it will need the tar-ball for the win32 version of Geant4
  • Next week version of Gauss will use newest Geant4 and Conditions Database
  • Few problems with win32 version of some generators

DaVinci (Juan)

  • Juan working on on it

OnLine (Markus)

  • v3r4, based on Gaudi v19r4, will be identical to v3r3 (= v3r2)

Round Table

concerned about the long term support for CORAL/POOL.
still having problems with an annoying warning compiling Gauss because Geant4 uses a different version of Gaudi. Since Gaudi is only needed for GaudiPolicy, will try to use LCG_Policy instead.
Marco Ca.
HyperNews discussion has to be resurrected at some point.
GRID middleware client libraries will be soon available for SLC4: we need to define the way we are going to use to pick up always the latest versions.

-- MarcoClemencic - 26 Jun 2007

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Topic revision: r2 - 2010-06-11 - PeterJones
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