Minutes of the offline meeting held on 16 March 1999

Present: P.Mato, F.Loverre, J.Closier, E.van Herwijnen, G.Gracia, M.Cattaneo, M.Franck, T.Cass, P.Colrain,
              P.Binko, R.Chytracek, A.Jacholkowska, D.Lutke, N.Neufeld, P.Maley, G.Corti, J.Harvey, F.Harris,
              J.Harvey, F.Ranjard

Minutes : Florence Ranjard

      1. CLHEP and other LHC++ packages compiled with g++ (F.Ranjard)

• LHCb is using g++ compiler on all platforms to use STL and the new C++ features already in the ANSI C++ but not yet avalaible
  in the vendor compilers.
• All C++ libraries must be compiled and then linked with the same compiler.
• ===> it is mandatory to have LHC++ packages compiled with g++ on all platforms.
• ===> T.Cass will look at the problem in IT
• ===> P.Mato will make a formal request at the next LHC++ meeting.

2. the sicb.job example (F.Ranjard)

• There is an example job to run SICB in batch under LSF avalaible on CVS in the TASK package.
• This job does not work interactively as it is
• ===> Joel and Florence will try to make an example job which works in both environment.

          3. Gaudi status report (P.Mato)(pdf)

• Gaudi version 2 is forseen for end of April.
• Enhancements:
  • Call Fortran Algorithms
  • write back to Zebra store
  • Data Service pre-loaded
  • extension of Event Selection
  • use number in the data path
  • histogramming
• Rado is collecting requirements for a Detector Description
• writable storage : need to add ROOT trees and branches in RIO to fully exploit the goodies of ROOT: A protype
  is working.
• User interface not yet decided (WIRED, OpenScientist, ROOT)
• Software Development Environment :
  • Bug tracking tool  (REMEDY is used by BaBar, is being investigated by LHC++)
  • Configuration Management Tool (CMT avalaible on UNIX).
  • CVS : the /afs/CVSrepository is the Gaudi repository on UNIX and NT.
    When releasing a new version the librarian will create a CVS branch to handle bug fixes between 2 releases.        
• Gloria is looking at GEMINI
• ==> collect information and requirements for the next LHC++ workshop.

      4.SICB splitting in small packages (F.Ranjard) (ppt)

• The splitting of SICB is done:
  • Finclude and Futio are packages shared by Gaudi and SICB.
  • Finclude, Futio, Futil, detdes, events are low level packages: they contain all include files shared by more
    than one package.
  • simulation, reconstruction, trigger or analysis packages do not share include files but use low level packages.
  • the task package: contains the main program, the su_user routines, it builds the executable.
  • there is one library per package.
  • use CMT to build libraries and application.
• Testing is going on but not yet finished.