LHCb Core Software Meeting

Date and Location

Attendees

Apologies

Subjects

News

• 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

Markus

concerned about the long term support for CORAL/POOL.

Gloria

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.

Philippe

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