[Halld-offline] Software Meeting Minutes, December 20, 2021

[Mark Ito]

Folks,

Please find the minutes here 
<https://halldweb.jlab.org/wiki/index.php/GlueX_Software_Meeting,_December_20,_2021#Minutes> 
and below.

   -- Mark

      ____________________________________


    GlueX Software Meeting, December 20, 2021, Minutes

Present: Alex Austregesilo, Edmundo Barriga, Mark Ito (chair), Igal 
Jaegle, Naomi Jarvis

There is a recording of this meeting 
<https://bluejeans.com/s/qxTLU3FPpVx>. Log into the BlueJeans site 
<https://jlab.bluejeans.com> first to gain access (use your JLab 
credentials).


      Announcements

 1. New version set: 5.2.0
    <https://mailman.jlab.org/pipermail/halld-offline/2021-December/008722.html>
    New production release from December 8.
 2. new recon-launch-compatible version sets
    <https://mailman.jlab.org/pipermail/halld-offline/2021-December/008727.html>
    These correspond to version set 5.2.0.
 3. group disk cleaned up, old releases deleted
    <https://mailman.jlab.org/pipermail/halld-offline/2021-December/008731.html>
    500 GB deleted of 3.0 TB total.


      Review of Minutes from the Last Software Meeting

We went over the minutes from the meeting on December 6 
<https://halldweb.jlab.org/wiki/index.php/GlueX_Software_Meeting,_December_6,_2021#Minutes>. 



        StashCache

  * Alex has loaded all of the 2017-01 REST files onto the cache disk.
    Naomi is copying them to CMU and Richard Jones is copying them to UConn.
  * Igal has uploaded PrimEx calibration data, but is having problems
    accessing them. He will post a description of the problem to the
    Software Help List.


        Documentation Upgrade

Beni Zihlmann called a meeting of the Documentation Task Force on 
December 9. Naomi reported that a wiki page 
<https://halldweb.jlab.org/wiki/index.php/Software> has been created to 
give an overview of GlueX software at a beginner's level. It is linked 
from the main wiki page 
<https://halldweb.jlab.org/wiki/index.php/Main_Page> under "Overview" in 
the "Software" section of the column on the right. Writing assignments 
for subsidiary pages were made and many have been fulfilled.


      FAQ of the Fortnight: What do I need to specify to get the correct
      constants from the CCDB?

Mark went over the details of what is needed to fully specify 
<https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_FAQ#What_do_I_need_to_specify_to_get_the_correct_constants_from_the_CCDB.3F> 
the set of calibration constants to be used.


      Last Week's Computing Review

Mark reported that the Review went well for us. He thanked all those 
that contributed. See his email from last Friday 
<https://mailman.jlab.org/pipermail/halld-offline/2021-December/008728.html>. 



      Review of recent issues and pull requests

We went over gluex_root_analysis Issue #156 
<https://github.com/JeffersonLab/gluex_root_analysis/issues/156>: 
Crashes with minimal DSelector upon writing output trees, probably 
memory leak.

Naomi told us that Paul Mattione had reported that when cloning ROOT 
forgets branch addresses when it uses PROOF or when it operates on a 
TChain[?] and so he had to write his own routine, which does not seem to 
work on CentOS 8. To debug the problem further she needs to go the main 
branch of ROOT to make sure that all recent changes have been 
incorporated. Mark said that he would look into adding that capability 
to the ROOT makefile in Build Scripts.

For now Naomi is using a two-part workaround:

 1. process one file at a time
 2. do not use PROOF


      Meeting Time in January

After the Holidays, we will go back to meeting on Tuesdays at 3:00 pm 
for both the Software and HDGeant4 meetings.

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