LHCb Core Software Meeting

Date and Location

October 17 2007
10:30 - 12:15
CERN (2-R-030)


Hubert, Joel, Juan, Marco Ca., Marco Cl. (minutes), Markus, Olivier, Patrick (EVO), Philippe



Software Releases

Gaudi (Hubert, Marco Cl.)

LHCb, Boole, Brunel (Marco Ca.)

  • Brunel v31r10 (LHCb v22r10)
    • Reprocessing version
  • Brunel v32r0 (LHCb v23r0)
    • New Tracking Framework (TF), the old TF packages will be closed (remove all the files and block CVS commit)
    • New developments in DaVinci should be based on this version of Brunel
    • Not released for SLC3 (the GRID is now on SLC4)

HLT (Patrick)

Phillippe: Are the HLT summaries in raw banks? no info

DaVinci (Juan)

  • Added a package by Yuehong (VertexFitCheck, not to be confused with the obsolete VertexFitChecker)
  • Working on microDST

OnLine (Markus)

  • Released v4r0 on LHCb v22r9
  • Next version on LHCb v23r0

Marco Ca.: There should be a re-build of OnLine also for LHCb v22r10.

Release and Deployment (Hubert)

  • Working on 3 releases in parallel:
    • LHCb v22r9, delayed because of problems in Alignment v2r1
    • LHCb v22r10, re-generating the documentation because of problems with the ROOT one
    • LHCb v23r0
  • Configuring a Windows virtual machine (lhcbts.cern.ch) * To be able to build the nightlies for LHCb software, we need ~0.7TB of space on AFS.

Round Table

Marco Cl.
Almost completely rewritten SetupProject. Now it is more maintainable and allows bettern handling of options (to allow aliases like SetupBrunel). By default, it now sets the environment for building too. The creation of the local project under User_release_area is not yet included. This new version is going to be tested by Joel.
Marco Ca.
There is a lot of confusion about the tools/scripts to prepare the environment for local installations. We agreed that the list of possible scripts to call is reduced to CMT.* and ExtCMT.*.
Problems with install_project.py: it creates broken links (the problem appears only on Patrick's installation).
Lbglimpse does not work after a call to SetupProject. The reason is that SetupProject is not setting CMTPATH if the project is using InstallArea, because it can create problems. To use Lbglimpse, one has to specify the project and the version to be used.
  • We have to prepare for real data Dress Reharsal
    • Nick is in contact with the involved IT people
    • We need MDF files of 2GB
      • Read ~120 DST files of B inclusive data and write the MDF file, we need the option file for this.
      • (Marco Ca.) DIRAC should allow to run a plain Gaudi.exe with a simple option file.
    • By February, we need to transfer ~42TB (2 weeks of data taking at full luminosity), since we do not have a such amount of raw data, we will use many copies of the same few MDF files.
  • The experiment with HyperNews has not been successful. We have to migrate the Core-S/W mailing list back to SIMBA.

-- MarcoClemencic - 23 Oct 2007

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