[Halld-offline] Offline Software Meeting Minutes, June 27, 2012

[Mark M. Ito]

Folks,

Find the minutes below and at 
https://halldweb1.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_June_27,_2012#Minutes 
.

   -- Mark
_____

GlueX Offline Meeting, June 27, 2012
Minutes

    Present:
      * CMU: Will Levine, Paul Mattione, Curtis Meyer
      * IU: Ryan Mitchell, Matt Shepherd
      * JLab: Mark Ito (chair), David Lawrence, Simon Taylor, Elliott
        Wolin, Beni Zihlmann
      * UConn: Richard Jones, Igor Senderovich

Announcements

      * The [26]Geant4 Tutorial is coming up, July 9-13.
      * David has fixed HDDS and HDDM so that they work with Xerces-c 3.x.
        See [27]his email message for details.
      * The JLab Users Group will conduct a survey all users on their use
        and experience with scientific computing at the lab. This should
        happen in a few weeks.

Review of minutes from the last meeting

    We reviewed the [28]minutes from the June 14th meeting.
      * We discussed profiling our reconstruction code.
           + We will try to do this for every tagged release.
           + Tentatively we will try to use oprofile. Richard, David, and
             Mark will meet to discuss implementation.

DST Format

    Richard presented an [29]HDDM template describing our current choice
    for a DST format. We went through it line by line and some suggestions
    were offered. Richard will consult with Paul and implement the changes.
    It was agreed that this was a very good start.

Planning for the Next Data Challenge

    Curtis started the discussion on the next data challenge. A request was
    made to send ideas to Curtis on what we hope to do with this and he
    would compile it into a document. The preliminary draft of this
    document can be found in DocDb as [30]GlueX-doc-2031.

Calorimeter Sub-Group Report

    Will explained some difficulties with the current scheme for
    determining the vertex position for photons. See [31]his talk for
    details. After some discussion we adopted Matt's suggestion that the
    initial reconstruction should use the center of the target as a
    provisional source for photons with the recognition that at a later
    stage a more sophisticated vertex will have to be determined. This
    approach has the advantage that it decouples photon reconstruction from
    that of charged tracks at this initial stage.

New Action Items

     1. Implement profiling on tagged releases. -> Richard, David, Mark
     2. Distributed a revised HDDM template for the DST -> Richard, Paul

    Retrieved from
"https://halldweb1.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_June_27,_2012"

References

   26. http://www.jlab.org/conferences/geant4/
   27. 
https://mailman.jlab.org/pipermail/halld-offline/2012-June/000966.html
   28. 
https://halldweb1.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_June_13,_2012#Minutes
   29. http://zeus.phys.uconn.edu/halld/datamodel/rest.xml
   30. 
http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=2031
   31. 
https://halldweb1.jlab.org/wiki/images/1/12/Photon_reconstruction_jun_27_2012.pdf

-- 
Mark M. Ito
Jefferson Lab (www.jlab.org)
(757)269-5295