LHCb Core Software Meeting

Date and Location

05 Mar 2014
10:30 - 11:45
CERN (2-R-030)


Anastasia Karachaliou, Ben Couturier, Chris Jones (Vidyo), Gloria Corti, Illya Shapoval, Joel Closier, Liang Sun, Marco Cattaneo, Marco Clemencic (minutes), Markus Frank, Paul Seyfert (Vidyo), Rob Lambert (Vidyo), Sebastien Binet, Sebastian Neubert



  • Joel we may have Virtual Machines with reasonable disk space (for the nightlies)

Round Table

Marco Cl.

  • Nightly Builds
    • buildlhcb being slow: hogged by I/O wait. Possible candidate is the indexing (glimpse), let's see in the coming days
    • Gloria reported a problem with the Geant4 build: sometime the builds takes more than 4 hours (time out). Several possible reasons, but we could increase the timeout.
    • Marco Ca.: suggested we have a discussion on the use of the build clusters. Joel will prepare a draft with the current status, then we will discuss the details
  • ROOT 6
    • 2 blockers fixed, 2 blockers added
    • once they are fixed, we can have a tag
  • CMake
    • forgot to count Vetra and Orwell in the list of projects to migrate
    • adapting the CMake configuration to use the new SFT LCG release "description" files
    • migrating CORAL to CMake (useful to understand how to reorganize the code)


  • New release of Online based on the new stack. Rob can start working Moore.
    • only SLC6... gcc46 to be deprecated


  • The new release of LCG will be very different from the old ones and it reflects on our scripts.
  • The installation with RPMs of the externals progressing well, now adding out projects.
  • Continuing the tests of the new version of the CVMFS stratum 0 code.


  • Strange issues in the nightly builds of Gauss. Will investigate offline with Marco Cl.


  • The reboot of buildlhcb didn't work as expected: to be investigated.


  • After the reboot of buildlhcb there was a problem with Ariadne: Neo4J showing different number of nodes than expected.


  • One SIMCOND tag.
  • Prepared a script to prepare to test the Hlt split conditions

Rob's Presentation

-- MarcoClemencic - 05 Mar 2014

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