GlueX Offline Meeting, November 9, 2016

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GlueX Offline Software Meeting
Wednesday, November 9, 2016
2:00 pm EST
JLab: CEBAF Center F326/327


  1. Announcements
    1. Open competition of new Geant4 logo (David)
    2. HDGeant4 update (Richard)
    3. Reconstruction Test Webpage (Thomas)
  2. Review of minutes from the last meeting (all)
  3. Launches (Paul M./Alex A.)
  4. Software Review
  5. Review of recent pull requests (all)
  6. Review of recent discussion on the Gluex Software Help List.
  7. Action Item Review

Communication Information

Remote Connection


Talks can be deposited in the directory /group/halld/www/halldweb/html/talks/2016 on the JLab CUE. This directory is accessible from the web at .



  • CMU: Naomi Jarvis
  • JLab: Alexander Austregesilo, Thomas Britton, Brad Cannon, Eugene Chudakov, Mark Ito (chair), Nacer Hamdi, David Lawrence, Hrachya Marukyan, Paul Mattione, Curtis Meyer, Nathan Sparks, Simon Taylor
  • MIT: Cris Fanelli
  • NU: Sean Dobbs

There is a recording of this meeting on the BlueJeans site.


  1. Open competition of new Geant4 logo. David brought our attention to this. Enter early and enter often!
  2. HDGeant4 update. Richard Jones reported that all detectors are now giving hits in HDGeant4, with the exception of the TPOL and the DIRC (which were also missing in HDGEANT). Geant4 is already built by HDPM. Mark will add it to the standard packages in build_scripts as well.
  3. Reconstruction Test Webpage. Thomas walked us through the new webpage that displays results of the Reconstruction Test. Recall that that test runs every three days. The underlying technology relies heavily on Javascript and response times are impressive. Please see the recording, linked above, Chapter 2, starting at the 8:00 mark, for the live demonstration.


Alex showed the information page for the latest reconstruction launch. It started last Friday. Previous to that there was work testing software and calibrations.

Tests were done with the CentOS7 farm nodes, but 50-70% of the jobs failed. There appears to be a bug with the Lustre driver on the new nodes. The launch is running on CentOS6.

Software Review

The review starts tomorrow. Curtis, Paul, and David are giving talks. GlueX Note 3108: Production and Analysis of GlueX Data has been sent to the committee as 50 pages worth of supplementary reading material.