LHCb Core Software Meeting

Date and Location

23-Nov-2011
10:30 - 11:30
CERN (2-R-030)

Attendees

Alex Grecu, Ben Couturier, Gloria Corti, Hubert Degaudenzi, Illya Shapoval, Joel Closier, Marco Cattaneo, Marco Clemencic (minutes), Thomas Hartmann (EVO)

Subjects

Issues from last meeting

Solved

• Test Vidyo during Core Software Meetings
  • it is possible since there is a phone bridge (+41225330322)
  • a registration is required
• Nightly build on gcc 4.6
  • running
  • we need the optimized version for testing
  • minor changes needed to compile
• xrootd debug messages issue fixed
• LHCbNightliesConfiguration updated (Thomas)
  • added scripts to automate the procedure

Pending

• Proposal for split of GaudiSvc
• DataQuality filtering by run
• Warning when calling "SetupProject Dirac"
• New version of Coverity analyzer
• ICC builds (licensing)

News

• Workshop on Concurrency in the many-Cores Era
  • both interesting and non-interesting presentations, to be followed up
• Programme of Work workshop for LHCb core software
• Gauss/Simulation Meeting
  • initial requests for the Upgrade
  • [[https://indico.cern.ch/conferenceDisplay.py?confId=163408][LHCb Upgrade Simulation kickoff Meeting]
  • there will be the need for some tutorials focused on the Upgrade and simulation
• LHCb Week
  • new format proposed for the tutorials: self study with experts in the room

Round Table

Gloria

• gauss-dev is needed with some special configuration
  • will send a list of the requirements for the related LCG nightly slot
• Rush release during the day
• Clean up of AppConfig?
  • agreed to create a v3b for backward compatibility and start from scratch in the trunk (to be announced at the PAC)

Marco Cl.

• Improvements to tag_package: it can create tags from branches and tag projects (project.cmt)
  • the twiki page must be updated
  • the script to create branches is missing: the code is essentially the same as tag_package, but it is better to have a different name (branch_package)
• Discussed with Marco Ca. the possibility of hiring an ISIMA student to work on a "Release Manager Workbench"
  • description to be prepared

Joel

• Migration of LHCbDirac to Dirac v6
  • use the next two weeks (before large MC11 production)

Hubert

• Deployed LbScripts v6r6p1 (dev)
• Philippe had a problem with the CRLs (Certificate Revocation Lists) on CERNVM
  • documentation problem (he used the wrong directory): fixed (CernVM)
• Problem with Python 2.6 on SLC6 (conflicts between the system library and the distributed one)
  • a solution has been proposed to be included in LCGCMT
  • shell we move to Python 2.7? -> let's test it

Ben

• Testing the compilation with '-O3' on gcc 4.3 (next will be 4.6).
• Working on the gcc plugin to replace gccxml (from Stefan's code).
• Preparing XML to describe the list of known projects/packages, instead of the current hard-coded one in LbScripts.

Illya

• New distribution model of SQLite
  • couple of minor changes (no need to release them yet)
  • Marco Cl.: few test needed before going in production
  • Marco Ca.: once we are sure that the system works, we can back-port the changed to the v6 series

Alex

• New release of Rivet
  • includes the first LHCb analysis
• Preparing a new analysis
• New Pythia8: fixed the conversion to HepMC (units mismatch)

Thomas

• Problem starting the nightlies by hand in with gcc46 (wrong Python). Under investigation.
• Working to get warnings in the nightlies summary when running out of space in the on AFS.
  • it should not be a problem for a while because now the .o and .a files are not copied

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-- MarcoClemencic - 28-Nov-2011