LHCb Core Software Meeting

Date and Location

10:30 - 11:50
CERN (2-R-030)


Gloria Corti, Illya Shapoval, Joel Closier, Marco Clemencic (minutes), Mika Anton Vesterinen, Rob Lambert (Vidyo)



  • Gaudi v23r7 tagged in lhcb-head
  • Problem in ROOT reported by ATLAS
  • Geant4 Technical Forum (26/3)
    • Nigel will report on our studies
  • CHEP abstracts deadline on 25th of March
  • Summer Students:
    • Joel ()
    • Marco Cl. (QMTest migration)

Issues from JIRA

  • LBCORE-23: login script not called on SLC6 because HEPIX was not installed by default
  • LBCORE-14: collected the list of externals used, investigating removals
  • LBCORE-57: discussion... Rob will summarize in a couple of slides next week

Round Table


  • High frequency of stalled jobs with the new physics list: 2% (normal) -> 10% (new physics list)
    • cannot be fixed before production, so we may have to cope with it while looking for a fix
  • New configuration of the generators location in LCG (using LCG version in the name). We want it in production, but Ben has to fix the scripts.
  • Waiting for a JIRA project (LBCORE-62)


  • lxbuild119 up and running (SLC6)
    • half for the services and half for builds
  • New LHCbDirac in production since Monday (problem with restart of agents)


  • Ariadne
    • defined how to handle security: use Apache virtual host
    • ready to install on the new machine (lxbuild119)
    • backup policy still to be defined, but not needed for testing
    • will discuss with Joel details


  • Changes in DetCond to allow multiple compression mechanism
  • Will commit a script to compress the database (to decide where)


  • Code review
    • usage of tools: probably used too much (used as wrappers around simple functions)
      • generally approved
    • reorganize memory layout of classes
      • requires more discussion
    • use Gaudi configurables more: move conditional and derived configuration to Python

-- MarcoClemencic - 13-Mar-2013

This topic: LHCb > WebHome > LHCbComputing > CoreSoftwareMeetingMinutes > CoreSoftwareMeetingMinutes20130313
Topic revision: r1 - 2013-03-13 - MarcoClemencic
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