[Halld-offline] Minutes of the April 30, 2019 Software Meeting

[Mark Ito]

People,

Please find the minutes here 
<https://halldweb.jlab.org/wiki/index.php/GlueX_Software_Meeting,_April_30,_2019#Minutes> 
and below.

   -- Mark

_______________________________________________________________


    Minutes, GlueX Software Meeting, April 30, 2019

Present:

  * *Glasgow: * Peter Pauli
  * *JLab: * Shankar Adhikari, Alexander Austregesilo, Thomas Britton,
    Mark Dalton, Sean Dobbs, Hovanes Egiyan, Stuart Fegan, Mark Ito
    (chair), David Lawrence, Justin Stevens, Simon Taylor, Beni Zihlmann

There is a recording of this meeting <https://bluejeans.com/s/MSaZg/> on 
the BlueJeans site. Use your JLab credentials to access it.


      Announcements

 1. ifarm1801
    <https://mailman.jlab.org/pipermail/jlab-scicomp-briefs/2019q2/000197.html>:
    is a new interactive farm node with 80 hyper threads and 100 GB of
    memory.
 2. New production version set: version_4.4.0.xml, new
    recon-launch-compatible version set: version_halld_recon_4.1.1.xml
    <https://mailman.jlab.org/pipermail/halld-offline/2019-April/003602.html>.
    These were announced on April 17. There are new releases of
    halld_recon, halld_sim, and hdgeant4 referenced.


      Review of minutes from the previous meeting

We went over the minutes from the March 5 meeting 
<https://halldweb.jlab.org/wiki/index.php/GlueX_Software_Meeting,_April_16,_2019#Minutes> 


  * Batch 4 of the reconstruction launch at NERSC on Spring 2018 data is
    50% done. Over 70% of the jobs for this batch have been submitted.
  * No word so far on the proposal to the Pittsburgh Super Computer Center.


      Report from the last HDGeant4 Meeting

We went over the minutes from the meeting on April 23 
<https://halldweb.jlab.org/wiki/index.php/HDGeant4_Meeting,_April_23,_2019#Minutes>. 
Thomas reported that he has confirmed that the issue of the missing skip 
command <https://github.com/JeffersonLab/HDGeant4/issues/103> in 
HDGeant4 was responsible for Carlos Salgado's issue with eta prime 
events <https://github.com/JeffersonLab/HDGeant4/issues/101>.


      Collaboration Meeting Agenda

We looked over the agenda 
<https://halldweb.jlab.org/wiki/index.php/GlueX-Collaboration-May-2019>, 
in particular the Software Tutorial on Monday and the 
Analysis/Offline/Calibration Session on Thursday. Peter asked if combo 
duplicate tracking could be addressed during the Tutorial. As there is 
not a general consensus on how this are should be handled, we instead 
encouraged Peter to open an issue on the halld_recon GitHub page on the 
subject.


      Database Storms

Mark led us through the history and ameliorations, tried and planned, to 
address large loads on the CCDB database when many jobs start 
simultaneously on the farm. See his slide 
<https://halldweb.jlab.org/doc-public/DocDB/ShowDocument?docid=3986> and 
the links therein for all of the details.


      Review of recent issues and pull requests

We reviewed the issues for halld_recon 
<https://github.com/JeffersonLab/halld_recon/issues?q=is%3Aissue>, 
halld_sim 
<https://github.com/JeffersonLab/halld_sim/issues?q=is%3Aissue>, ccdb 
<https://github.com/JeffersonLab/ccdb/issues?q=is%3Aissue>, and rcdb 
<https://github.com/JeffersonLab/RCDB/issues?q=is%3Aissue>. Not a lot of 
discussion was generated.


      Review of recent discussion on the GlueX Software Help List

We took a look at the list 
<https://groups.google.com/forum/#!forum/gluex-software>. During the 
discussion of Shankar's recent post 
<https://groups.google.com/forum/#!topic/gluex-software/4bmUNbvgWQk> on 
beam photon spectra in generated events, it was suggested that Thomas 
include some slides on the topic in his talk at the upcoming tutorial.

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  * This page was last modified on 1 May 2019, at 13:54.

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