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<p>People,</p>
<p>Please find the minutes <a moz-do-not-send="true" href="https://halldweb.jlab.org/wiki/index.php/HDGeant4_Meeting,_September_7,_2021#Minutes">here</a>
and below.</p>
<p> -- Mark</p>
<p> ________________________________</p>
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<h2 id="firstHeading" class="firstHeading" lang="en"><span dir="auto">HDGeant4 Meeting, September 7, 2021, </span><span class="mw-headline" id="Minutes">Minutes</span></h2>
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<p>Present: Mark Ito (chair), Igal Jaegle, Richard Jones,
Churamani Paudel, Simon Taylor, Beni Zihlmann
</p>
<p>There is a <a rel="nofollow" class="external text" href="https://bluejeans.com/s/vsg7Ssx59tR/">recording
of this meeting</a> on the BlueJeans site. Log into
the <a rel="nofollow" class="external text" href="https://jlab.bluejeans.com">BlueJeans site</a>
first to gain access (use your JLab credentials).
</p>
<h3><span class="mw-headline" id="Review_of_minutes_from_the_last_meeting">Review of
minutes from the last meeting</span></h3>
<p>We went over the [[HDGeant4 Meeting, August 24,
2021#Minutes|minutes from the meeting on August 24th.
</p>
<ul>
<li> Mark submitted a <a rel="nofollow" class="external
text" href="https://jlab.servicenowservices.com/nav_to.do?uri=%2Fincident.do%3Fsys_id%3D5d486ae31b0634106a9e85dae54bcb89">Service
Now Incident Report (SNIR)</a> on the missing
package (boost-python36-devel) on sandd1.jlab.org. The
pull-request tests started to succeed after the
package was installed.</li>
<li> After the last meeting, Alex went ahead and closed
<a rel="nofollow" class="external text" href="https://github.com/JeffersonLab/HDGeant4/issues/181">Issue
#181</a>: G3/G4 Difference in FDC wire efficiency at
the cell boundary.</li>
</ul>
<h3><span class="mw-headline" id="Issues_on_GitHub">Issues
on GitHub</span></h3>
<p>Went over the <a rel="nofollow" class="external text" href="https://github.com/JeffersonLab/HDGeant4/issues">issues</a>.
closed
</p>
<ul>
<li> <a rel="nofollow" class="external text" href="https://github.com/JeffersonLab/HDGeant4/issues/167">Issue
#167: G4 exceptions for certain run numbers</a>.
Mark sent email to Thomas Britton and Elton Smith
asking whether this issue can be closed now.</li>
<li> <a rel="nofollow" class="external text" href="https://github.com/JeffersonLab/HDGeant4/issues/185">Issue
#185: hits in both CALs from the same track</a>.
Mark asked Lubomir Pentchev about this one. Lubomir
said that it could be closed.</li>
<li> <a rel="nofollow" class="external text" href="https://github.com/JeffersonLab/HDGeant4/issues/187">Issue
#187: unknown particle type 50 being generated
through interactions</a>. Richard will close this
one after the meeting.</li>
<li> <a rel="nofollow" class="external text" href="https://github.com/JeffersonLab/HDGeant4/issues/195">Issue
#195: Crash adding daughters on RHEL/CentOS 8</a>.
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 <a rel="nofollow" class="external text" href="https://markito3.wordpress.com/2021/03/04/errors-from-b1pi-test-on-fedora-33/">his
notes from back in March</a>. 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.</li>
<li> 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.</li>
</ul>
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