[Halld-offline] HDGeant4 Meeting Minutes, September 7, 2021

[Mark Ito]

People,

Please find the minutes here 
<https://halldweb.jlab.org/wiki/index.php/HDGeant4_Meeting,_September_7,_2021#Minutes> 
and below.

   -- Mark

      ________________________________


    HDGeant4 Meeting, September 7, 2021, Minutes

Present: Mark Ito (chair), Igal Jaegle, Richard Jones, Churamani Paudel, 
Simon Taylor, Beni Zihlmann

There is a recording of this meeting 
<https://bluejeans.com/s/vsg7Ssx59tR/> on the BlueJeans site. Log into 
the BlueJeans site <https://jlab.bluejeans.com> first to gain access 
(use your JLab credentials).


      Review of minutes from the last meeting

We went over the [[HDGeant4 Meeting, August 24, 2021#Minutes|minutes 
from the meeting on August 24th.

  * Mark submitted a Service Now Incident Report (SNIR)
    <https://jlab.servicenowservices.com/nav_to.do?uri=%2Fincident.do%3Fsys_id%3D5d486ae31b0634106a9e85dae54bcb89>
    on the missing package (boost-python36-devel) on sandd1.jlab.org.
    The pull-request tests started to succeed after the package was
    installed.
  * After the last meeting, Alex went ahead and closed Issue #181
    <https://github.com/JeffersonLab/HDGeant4/issues/181>: G3/G4
    Difference in FDC wire efficiency at the cell boundary.


      Issues on GitHub

Went over the issues <https://github.com/JeffersonLab/HDGeant4/issues>. 
closed

  * Issue #167: G4 exceptions for certain run numbers
    <https://github.com/JeffersonLab/HDGeant4/issues/167>. Mark sent
    email to Thomas Britton and Elton Smith asking whether this issue
    can be closed now.
  * Issue #185: hits in both CALs from the same track
    <https://github.com/JeffersonLab/HDGeant4/issues/185>. Mark asked
    Lubomir Pentchev about this one. Lubomir said that it could be closed.
  * Issue #187: unknown particle type 50 being generated through
    interactions <https://github.com/JeffersonLab/HDGeant4/issues/187>.
    Richard will close this one after the meeting.
  * Issue #195: Crash adding daughters on RHEL/CentOS 8
    <https://github.com/JeffersonLab/HDGeant4/issues/195>. Hao Li first
    reported this crash in hdgeant4 last week . It comes during set-up
    of the geometry. Mark had this same crash hidden in his notes from
    back in March
    <https://markito3.wordpress.com/2021/03/04/errors-from-b1pi-test-on-fedora-33/>.
    Mark suspects that this bug only shows up with GCC 8.4 and above.
    Richard remarked it could be a bug that was always there, but only
    gets exposed when the compiler version gets high enough.
  * Richard is putting together a CentOS 8 Docker container to have a
    look at Issue #195. We spent some time discussing issues around
    setting up CentOS to run the GlueX software stack. The "Powertools"
    repo is key.


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