LHCb Core Software Meeting

Date and Location

04 Jun 2014
10:30 - 11:10
CERN (2-R-030)


Anastasia Karachaliou, Ben Couturier, Gloria Corti, Illya Shapoval, Joel Closier, Marco Cattaneo, Marco Clemencic (minutes), Markus Frank, Sebastien Binet (Vidyo), Sofia Qiriazi



  • LHCb Week in two weeks time
    • prepare the summaries of the Computing Workshop by the end of this week
  • ROOT I/O workshop is approaching
    • Philippe Canal asked for contribution from LHCb (feedback, requirements, etc.)
    • Marco Ca.: we should worry about the TTree cache setting for WAN connections (currently optimized for disk/LAN). According to Markus our events are so small that the default settings are good enough to get ~100 events in the cache.
  • Firewall will be open this week on the DEV JIRA instance.

Round Table

Marco Cl.

  • Gaudi v25r2 tagged and built, but not yet installed on AFS.
    • Marco Ca.: next Gaudi release on ROOT 6 only (bump major versions of all projects)
  • We can merge Sebastien's branches
    • ATLAS is testing Gaudi trunk in their MIG2 slot
  • Migration of Gaudi from Savannah to Jira just completed.
  • We should move CondDB Savannah should be migrated to SNOW (same as for the deployments).
    • To be tested first.


  • Completed functionality to commit CondDB metadata to Ariadne.

Marco Ca.: Issues with the management of compatibilities for the Upgrade


  • Released LbScripts v8r0 (dev), featuring lb-run etc.
  • Added to possibility of flag the release request to the soft db.
  • LbScripts Savannah migrated to Jira as a test.


  • New version of LHCbDirac installed released yesterday (SLC6 only)
    • Ganga will be built on top of it.

Marco Cl.: what about the machines for Coverity?... pending


  • Trying to write a test algorithm integrated with Gaudi/DD4Hep.

-- MarcoClemencic - 04 Jun 2014

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