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<p>After glancing at my notes I found that I missed reporting on a
couple of items:</p>
<h3><span class="mw-headline" id="Planning_for_Launches">Planning
for Launches</span></h3>
<p>We discussed the idea of doing some semi-formal documentation of
plans for launches mainly as a communication tool both for the
collaboration and for computing resource providers. We should at
least write down things that we know are upcoming acknowledging
the usual schedule uncertainties. We agreed it was a good idea
which we should discuss further.
</p>
<h3><span class="mw-headline"
id="Reproducibility_in_Tracking_Reconstruction">Reproducibility
in Tracking Reconstruction</span></h3>
<p>Beni thinks he has discovered the problem: somehow duplicate, but
not identical, FDC pseudo-points are being fed into the tracking.
Which point gets used can vary from one run of the program to the
next. The source of the duplication is the next thing to
investigate. <br>
</p>
<p>...and the HDGeant4 meeting will be at 10 am, not at 10 pm as
originally stated...you can thank Sean for not ruining your Friday
night.<br>
</p>
<br>
<div class="moz-cite-prefix">On 06/29/2018 03:52 PM, Mark Ito wrote:<br>
</div>
<blockquote type="cite"
cite="mid:26922efc-c49b-5683-679e-39cbaaee3354@jlab.org">
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<p>Folks,</p>
<p>Please find the minutes below and at</p>
<p>
<a class="moz-txt-link-freetext"
href="https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_June_29,_2018#Minutes"
moz-do-not-send="true">https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_June_29,_2018#Minutes</a></p>
<p> -- Mark</p>
<p>_______________________</p>
<p> </p>
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<h2 id="firstHeading" class="firstHeading" lang="en"><span
dir="auto">GlueX Offline Meeting, June 29, 2018, </span><span
class="mw-headline" id="Minutes">Minutes</span></h2>
<div id="bodyContent" class="mw-body-content">
<div id="mw-content-text" dir="ltr" class="mw-content-ltr"
lang="en">
<p>Present: </p>
<ul>
<li> <b> CMU: </b> Naomi Jarvis</li>
<li> <b> FIU: </b> Mahmoud Kamel</li>
<li> <b> FSU: </b> Sean Dobbs</li>
<li> <b> JLab: </b> Alex Austregesilo, Mark Ito
(chair), David Lawrence, Simon Taylor, Beni Zihlmann</li>
<li> <b> W&M: </b> Justin Stevens</li>
<li> <b> Yerevan: </b> Hrach Marukyan</li>
</ul>
<p>There is a <a rel="nofollow" class="external text"
href="https://bluejeans.com/s/Gl5u7/"
moz-do-not-send="true">recording of this meeting</a>
on the BlueJeans site. Use your JLab credentials to
access it. </p>
<h3><span class="mw-headline" id="Announcements">Announcements</span></h3>
<ol>
<li> <a rel="nofollow" class="external text"
href="https://mailman.jlab.org/pipermail/halld-offline/2018-June/003228.html"
moz-do-not-send="true">Sim-Recon 2.26.0</a>. A
periodic release. See the release notes for changes
from the last such release.</li>
<li> <a rel="nofollow" class="external text"
href="https://github.com/JeffersonLab/gluex_root_analysis/releases/tag/0.3"
moz-do-not-send="true">GlueX Root Analysis 0.3</a>.
There has not been a new release for about a year.
This one was overdue.</li>
</ol>
<h3><span class="mw-headline"
id="Review_of_minutes_from_the_June_15_meeting">Review
of minutes from the June 15 meeting</span></h3>
<p>We went over <a
href="https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_June_15,_2018#Minutes"
title="GlueX Offline Meeting, June 15, 2018"
moz-do-not-send="true"> the minutes</a>. </p>
<ul>
<li> The Experimental Readiness Review for GlueX II
was held last Monday. David noted that Eugene
Chudakov has already circulated the preliminary
report of the committee.</li>
<li> David mentioned that we may want to revisit our
estimate of the amount of Monte Carlo we need. It
accounts for nearly half of our current projections.
This is in line with what we have always said, but
bears re-examination.</li>
</ul>
<h3><span class="mw-headline"
id="Coming_Computing_Resources">Coming Computing
Resources</span></h3>
<p>Mark flipped through <a rel="nofollow"
class="external text"
href="https://www.jlab.org/indico/event/247/session/5/contribution/14/material/slides/0.pdf"
moz-do-not-send="true">Chip Watson's talk at the
June 28 Round Table</a>. </p>
<p>Increases to the core count on the farm coming this
summer were listed on slide 6: </p>
<ul>
<li> Current system: 3.5k cores (scaled to Broadwell)</li>
<li> Major farm upgrade due in July: 88 dual 20 core
Skylake compute nodes (farm18), adds 3.5k cores
(100% gain)</li>
<li> Retiring LQCD cluster to be shared for 6 months,
250 dual 8 core (2012 Sandy Bridge) compute nodes,
adds 2.4k cores</li>
<li> Size for the Fall run: 9.4k cores (up 2.7x)</li>
<li> Note: 2.7k cores go end of life mid way through
FY2019, and we might </li>
</ul>
<p>add only 1.8k new, dropping onsite capacity to 8.5k
cores, still up 150%. </p>
<p>For all of the talks presented at the Round Tables
see the <a rel="nofollow" class="external text"
href="https://www.jlab.org/indico/event/247/"
moz-do-not-send="true">Indico site</a>. </p>
<h3><span class="mw-headline"
id="Report_from_the_June_28_SciComp_Meeting">Report
from the June 28 SciComp Meeting</span></h3>
<p>Mark and David gave the report. </p>
<ul>
<li> SciComp has replaced PBS with <a rel="nofollow"
class="external text"
href="https://slurm.schedmd.com/"
moz-do-not-send="true">Slurm</a> as the underlying
batch scheduler for the LQCD cluster and are looking
to do the same for the Experimental Nuclear Physics
(ENP) cluster. We now have Auger sitting on top of
PBS and SWIF sitting on top of Auger. They are
looking at eliminating the Auger layer.</li>
<li> SciComp is planning on allowing LQCD jobs to run
on the ENP cluster at low priority. The reverse will
not be allowed. Jobs submitted to ENP will be able
to pre-empt LQCD jobs (kill them to make room if no
job slots are free).</li>
</ul>
<h3><span class="mw-headline"
id="Missing_CDC_hits_in_recent_bggen_launch">Missing
CDC hits in recent bggen launch</span></h3>
<p>Alex A. reported on the problem. All CDC hits are
apparently missing. Cause of the problem is not known.
See his presentation of the evidence starting at 40:40
in the <a rel="nofollow" class="external text"
href="https://bluejeans.com/s/Gl5u7/"
moz-do-not-send="true">recording</a>. </p>
<p>We will have to re-run. </p>
<h3><span class="mw-headline"
id="Splitting_up_Sim-Recon">Splitting up Sim-Recon</span></h3>
<p>Mark reported that there was still some remaining
work to get to a production system. </p>
<ol>
<li> <b>Environment variable changes</b>. Rather than
HALLD_HOME for sim-recon, we will have
HALLD_SIM_HOME for the halld_sim repository
(originally gluex_sim) and HALLD_RECON_HOME for the
halld_recon repository (originally gluex_recon). We
decided that the "halld" name reflected the fact
that non-GlueX experiments will be using the same
software.</li>
<li> <b>Preserving branches in halld_recon</b>. There
were some details to be worked out to have the
branches from sim-recon transmit to halld_recon.</li>
<li> <b>Removing sim pieces from gluex_recon</b>.
This had not been done. Removal necessitates changes
in the build system.</li>
<li> <b>Dealing with build_scripts</b>. Build_scripts
has not been modified for the new configuration. All
work so far has been in getting a working build.</li>
</ol>
<h3><span class="mw-headline" id="HDGeant4_Meeting">HDGeant4
Meeting</span></h3>
<p>At the last collaboration meeting Richard suggested
having a meeting dedicated to issues related to the
Geant4 version of our simulation. The first meeting
will be Friday, July 6 at 10 pm. We will likely meet
bi-weekly in the slot opposite the Offline Software
meetings. </p>
<h3><span class="mw-headline"
id="Review_of_Pull_Requests_and_Software_Help_Topics">Review
of Pull Requests and Software Help Topics</span></h3>
<p>We went over <a rel="nofollow" class="external text"
href="https://github.com/JeffersonLab/sim-recon/pulls?q=is%3Aclosed+is%3Apr"
moz-do-not-send="true">recent pull requests</a> and
<a rel="nofollow" class="external text"
href="https://groups.google.com/forum/#%21forum/gluex-software"
moz-do-not-send="true">recent discussion on the
GlueX Software Help List</a> without major
discussions. </p>
</div>
</div>
</div>
</div>
</div>
<pre class="moz-signature" cols="72">--
Mark Ito, <a class="moz-txt-link-abbreviated" href="mailto:marki@jlab.org" moz-do-not-send="true">marki@jlab.org</a>, (757)269-5295
</pre>
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<pre wrap="">_______________________________________________
Halld-offline mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Halld-offline@jlab.org">Halld-offline@jlab.org</a>
<a class="moz-txt-link-freetext" href="https://mailman.jlab.org/mailman/listinfo/halld-offline">https://mailman.jlab.org/mailman/listinfo/halld-offline</a></pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Mark Ito, <a class="moz-txt-link-abbreviated" href="mailto:marki@jlab.org">marki@jlab.org</a>, (757)269-5295
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