LHCb Core Software Meeting

Date and Location

10:30 - 12:20
CERN (2-R-030)


Alex Grecu, Ben Couturier, Gloria Corti, Joel Closier, Liang Sun, Marco Cattaneo, Marco Clemencic (minutes), Markus Frank, Rob Lambert, Thomas Hartmann (Vidyo)



  • Meeting on Concurrency Forum today
  • From LIM
    • ICC 13, GCC 4.7.2, ROOT 5.34/02
    • the platform g11max will be dropped and gccmax will have C++11 enabled
  • Joel: we need to replace 3 build machines
    • they have to be replaced with SLC5
    • Ben: we need to validate the SLC5 builds on SLC6 machines
  • Marco/Joel: Problem with Oracle security
    • we need the new client in LCGCMT, for the few use cases that need direct access (PVSS, CondDB replication, BookKeeping). Marco Cl. will check with Andrea Valassi
    • Marco Ca.: tier-1s are asking for the use of Oracle. No need for LHCb.
  • Introducing Liang Sun: new manager for CondDB

Rob on FSR


Round Table

Marco Cl.

  • CMake configuration
    • can build LHCb, Rec, LbCom
      • using 99% auto conversion
      • some minor changes are needed in the requirements (more explicit "use"s, non-standard constructs); can I apply them? Yes
      • issues with data packages, depending on the environment script
    • working on enhancement of the script to produce the environment
    • the Eclipse configuration of CMake projects is quite practical
  • TWiki page to port the code to C++11: Cpp11HowTo
  • Pending tasks:
    • Coverity upgrade
    • Import of latest RootCnv

Marco Ca.

  • It seems that on SLC6 Brunel is using 30% more memory wrt SLC5 (gcc46 in both cases)


  • Where shall we put the script to merge the XML summaries of productions?
    Should be in LbScripts.


  • Issue last week with CVMFS inconsitencies.
  • GENSER people are preparing the builds of the generators for gcc46. Shell we move to a newer version of some generators?
  • Tried the latest ICC (13), which showed to be slower than the gcc 4.6
  • New LbScripts about to be released: implying change of default CMTCONFIG everywhere
  • For next week: discuss the list of platforms valid for grid (triggered by a mismatch between the grid and CVMFS installations of some projects).


  • Not understood what the problem with the nightlies was, but after restart they are working fine.

-- MarcoClemencic - 26-Sep-2012

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