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<p>Simulators,</p>
<p>Please find the minutes <a moz-do-not-send="true"
href="https://halldweb.jlab.org/wiki/index.php/HDGeant4_Meeting,_June_4,_2019">here</a>
and below.</p>
<p> -- Mark</p>
<p>____________________________________________________________</p>
<p>
</p>
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<h2 id="firstHeading" class="firstHeading" lang="en"><span
dir="auto">Minutes, HDGeant4 Meeting, June 4, 2019</span></h2>
<div id="bodyContent" class="mw-body-content">Present:
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lang="en">
<ul>
<li> <b> JLab: </b> Shankar Adhikari, Thomas Britton,
Mark Ito (chair), Simon Taylor, Beni Zihlmann</li>
<li> <b> UConn: </b> Richard Jones</li>
</ul>
<p>There is a <a rel="nofollow" class="external text"
href="https://bluejeans.com/s/t5u36/">recording of
this meeting</a> on the BlueJeans site. Use your JLab
credentials to get access.
</p>
<p>We had a desultory discussion, largely off agenda. Some
random notes:
</p>
<ul>
<li> The SKIP command is now working in both hdgeant and
hdgeant4.</li>
<li> Richard has been working on implementing an <a
rel="nofollow" class="external text"
href="https://github.com/JeffersonLab/halld_recon/pull/165">intermediate
buffer for EVIO reads in DANA</a>. When using XROOTD
to read EVIO-formatted raw data files the I/O speed
improvement is about factor of 40.</li>
<li> Thomas has been working with Wes Moore of IT on
standing up an XROOTD server on the submit host
(scosg16.jlab.org). They have succeeded in streaming
random triggers from the submit host to OSG sites. A
Really Big Step (RBS).</li>
<li> We had a rather long discussion about submitting to
non-OSG compute resources with OSG methods using the
submit host. All agreed that this is desirable.
Richard has shown proof-of-principle with his work
with Bosco.</li>
</ul>
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