[Halld-offline] offline software meeting minutes, November 28, 2012

[Mark M. Ito]

Find the minutes below and at

 
https://halldweb1.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_November_28,_2012#Minutes
___

GlueX Offline Meeting, November 28, 2012
Minutes

    Present:
      * CMU: Paul Mattione, Curtis Meyer
      * JLab: Mark Ito (chair), David Lawrence, Dmitry Romanov, Sascha
        Somov, Simon Taylor, Elliott Wolin

Announcements

      * We decided to set January 1, 2013 as the cut-off date for
        calibration constant changes to the file-based system, stored in
        the Subversion repository. After that changes will have to be
        entered into the calibration database (CCDB).
      * To get to the computers in the counting house via ssh, you must
        first log into a gateway node hallgw.jlab.org. You will need a
        two-factor authentication token to do that.
      * There is a plan to use an EVIO dat source and read it into Jana via
        an ET ring on the node in the counting house. There is also a plan
        to add farm management to the system.

Tracking Report

    Simon gave the report.
      * He is working on propagating the track co-variance matrix to an
        arbitrary point along the trajectory, a feature Paul requested.
      * The CDC geometry is currently broken but is in the process of
        getting fixed.
      * The BCAL geometry seems to have an additional problem; the readout
        box is masking some of the material. This is being addressed.

    David commented that in cases where there are conceptual subtleties in
    how the geometry is constructed, it would be very nice to have
    accompanying comments in the HDDS file.

Data Challenge Ststus

    We reviewed current status. The goal from the last meeting was to start
    production today and that might still happen. Other items:
      * We will have to ask the Computer Center to restore the nodes we are
        using. CLAS has figured out how to use them and is expoliting their
        higher priority.
      * Paul requested a tagged release of sim-recon. Mark will make one.

Geometry Query Tool

    David has written a tool that locates an input space point in any valid
    geometry, giving the volume in which it resides and that volume's
    parents (geneology). He found this useful when locating a target in
    various positions and encountering collisions in the geometry.

ROOT-based Event Display

    Dmitry has started working an event display based on EVE, the event
    display module of ROOT.

    Retrieved from
 
"https://halldweb1.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_November_28,_2012"

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