GlueX Offline Meeting, April 6, 2011

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GlueX Offline Software Meeting
Wednesday, April 6, 2011
1:30 pm EDT
JLab: CEBAF Center F326/7

Agenda

  1. Announcements
    1. New release: sim-recon-2011-03-31
  2. Review of minutes from the last meeting: all
  3. Definition of primaries: Beni, Matt, Richard
  4. Checking sort comparison algorithms: David
  5. Floating point entropy proposal: Richard
  6. chi squares of tracking: Kei
  7. Action Item Review: all
  8. Review of recent repository activity: all

Communication Information

Telephone

To connect by telephone:

  1. dial:
  2. enter access code followed by the # sign: 3421244#

Video Conferencing

Slides

Talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2011-2Q on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2011-2Q/ . You have to be a member of the "halld" Unix group to do this.

Minutes

Present:

  • CMU: Curtis Meyer
  • IU: Ryan Mitchell, Kei Moriya, Matt Shepherd
  • JLab: Hovanes Egiyan, Mark Ito (chair), Yi Qiang, Simon Taylor, Elliott Wolin
  • UR: Andrei Semenov, Irina Semenova

Announcements

Mark pointed out the new release of sim-recon that came out this week.

Matt remarked that some of the data in the calibration database can change the behavior of the code in a given release and that we should consider tagging a set of calibration constants along with the code. Since we do not have a calibration database yet that supports freezing of the constants we need some alternate mechanism for doing it.

Mark thought that in the cases where numbers need to be frozen, more than likely they should be parameters in the source code, using the configuration scheme that David described at an earlier meeting. Then default values are captured along with the standard release tag.

Matt mentioned that CLEO had similar parameters in a database along with calibration constants and so both were captured with the single tag.

We agreed that in the current situation we have no other choice but to tag the calibrations in some way using subversion. Mark agreed to come up with a scheme.

releases, freezing calibration constants

externals in subversion

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