LHCb Core Software Meeting

Date and Location

10:30 - 11:30
CERN (2-R-030)


Alex Grecu, Ben Couturier, Gloria Corti, Illya Shapoval, Joel Closier, Liang Sun, Marco Cattaneo, Marco Clemencic (minutes), Markus Frank, Stefan Lohn


Thomas Hartmann



  • ITUM
    • usual reminders and updates on support expirations and new platforms
    • GIT service being developed
    • SLC6 plan: what do we want to do? gcc46/47?
    • updates on Vidyo better support on Linux
    • merge between win and mac support: mac supported officialy
    • Joel:
      • preparing a demo for the SW/Analysis week
      • update to the online docs
      • improvements to the authentication at CERN (new mechanisms)
  • Next meetings
    • Forum on Concurrent Programming Models and Frameworks
    • Architects Forum
    • Marco Ca.: ROOT user forum in March. Fons requested attendance from LHCb.
    • Joel: DIRAC developers forum in October.
    • Joel: Working group for operations (CVMFS).
    • Marco Ca.: software and analysis week in two weeks time: two slots for computing, then tutorials (new format, for beginners) and upgrade (by Niko).
      Let Marco Ca. know if anybody needs something to be reported.
      Gloria will plan for the next developer tutorials for upgrade.
  • Marco Ca.: new round of fellowships.

Update on FSR (Rob)


The plan is to enable merging every time. If/when we can, we can try one of the more aggressive solutions.

Round Table


  • Problems in the nightlies
    • inconsistency in AFS causing random errors (see INC176408).
    • problem with missing symbols due to bad LD_LIBRARY_PATH triggered by gcc46 client processes that were picking up gcc43 builds.
      Modified the code to avoid mixing of platforms.
  • lhcb-patches4 to be used for testing -pedantic builds. Problems due to misconfiguration: the documentation of the nightly build system needs some fixing.


  • Reprocessing running well.
  • Triggered the guy to replace the old lxbuild machines.
  • Finalizing the ISIMA requests. Send the project to the school and ask the students to register to ERT.

Marco Cl.

  • CMake configuration
    • introduced prototype of support for data packages
    • built up to Brunel v44r0 (on Gaudi HEAD) and tested successfully, including the build of a private partial project
    • working on the integration with getpack and SetupProject, followed by nightlies, mkproject, etc.


  • Working on the visualization of the results of the profiling.
  • Will go to CSC in two weeks.


  • Committed QMTests (working on 32bits, at least).
  • Start to work on MC FSRs.


  • LbScript v7r2 tested as much as possible. Waiting for a test by Joel, then it can bydeclared 'prod'.


  • New global tag.


  • Would like to distribute all the PDF data instead of only an extract (as we do now).
  • Should we start testing productions for upgrade in a centralized way? yes, if it's reasonable.

-- MarcoClemencic - 10-Oct-2012

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Topic revision: r1 - 2012-10-10 - MarcoClemencic
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