CoreSoftwareMeetingMinutes20130508 < LHCb

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---+!! LHCb Core Software Meeting
---++!! Date and Location
[[INDICO:247334][08-May-2013]]%BR%
10:30 - 11:25 %BR%
CERN (2-R-030) %BR%
---++!! Attendees
Ben Couturier,
Joel Closier,
Liang Sun,
Marco Cattaneo,
Marco Clemencic (minutes),
Markus Frank,
Stefan Lohn

---++!! Subjects
%TOC%

---+ News
   * Switch of the lxplus alias to SLC6
      * lxplus(6) reported to be very slow 
      * [[https://its.cern.ch/jira/browse/LBCORE-128][LBCORE-128]]
      * problem with the configuration (e.g. CASTOR)
      * Markus does have problems with the login scripts
   * LIM
      * LCGCMT 65 not yet released... (ROOT 5.34.07 might be included)
      * Discussion on a new versioning scheme for the externals (simplify and remove the "_python26" type of extensions) (see [[https://its.cern.ch/jira/browse/LBCORE-120][LBCORE-120]])
      * new interface dcap

---+ Issues in JIRA
   * [[https://its.cern.ch/jira/issues/?filter=10913][for the meeting]]

---+ Round Table
---++ Marco Cl.
   * Nightly Builds: waiting for lxbuild119
      * Ben: we do not need anything anymore for installing on CVMFS, because we will use a virtual machine for it
      * Joel: still a problem with the server HTTPS certificate
      * investigating the possibility of a database backed implementation of the dashboard (AKA summary page)
   * Migration to JIRA ([[https://its.cern.ch/jira/browse/LBCORE-120][LBCORE-120]])
      * Victor is currently busy, so we have to wait a bit
      * we will start testing with Gaudi, LBCORE and CondDB, followed by LHCb Deployment
   * Implementation of the replacement for SetupProject for CMake ([[https://its.cern.ch/jira/browse/LBCORE-12][LBCORE-12]])
      * 2 new tools: =lb-run= and =lb-dev=
      * one more tool to come: =lb-setup=
      * some fundamental differences between the new tools and SetupProject, some can be removed, some not (see the comments and the worklog in [[https://its.cern.ch/jira/browse/LBCORE-12][LBCORE-12]])
   * The code to access the compressed DB has been released with the latest LHCb. Now I reorganized the code so that it lives in one single library and and I will prepare builds of that library for all the versions of LHCb used in productions, to be added to the environment via Compat.

---++ Stefan
   * Working on the improvement of the visualization in LHCbPR ([[https://its.cern.ch/jira/browse/LBCORE-72][LBCORE-72]])

---++ Ben
   * Several support requests following the SLC6 switch
   * Discussing the deployment of HEPOSLib RPM: we should not ask to have it on SLC5, better to switch to SLC6
   * volhcb34 moved to SLC6: improvements in the performances (~5%)
   * Working on the implementation of the SoftConfDB in Neo4J

---++ Joel
   * Put in production the new LHCbDirac
   * Try to keep the control of the versions of the middleware (now they have a good RSS feed).
   * Opened a ticked because =/cvmfs/grid.cern.ch= does not work on SLC6 (not up to date? for sure not in sync with AFS).
   * Installed a new package on volhcb34 to play with CPU frequency
   * Start to evaluate some FAQ software to be shared between LHCb and Dirac.

---++ Liang
   * Testing improvements of performances switching from double to float (preserving correctness).

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-- Main.MarcoClemencic - 08-May-2013
Topic revision: r3 - 2013-05-08 - MarcoClemencic
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