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Folks,<br>
<br>
Please find the minutes below and at
<a class="moz-txt-link-freetext" href="https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_February_3,_2016">https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_February_3,_2016</a>
.<br>
-- Mark<br>
_______________________<br>
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<h1 id="firstHeading" class="firstHeading" style="font-weight:
bold;" lang="en"><span dir="auto">GlueX Offline Meeting,
February 3, 2016</span>, Minutes</h1>
<div id="bodyContent" class="mw-body-content"><span
class="mw-headline" id="Minutes"></span>
<div id="mw-content-text" dir="ltr" class="mw-content-ltr"
lang="en">
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Present:</p>
<ul style="list-style-type: square;">
<li><b>CMU</b>: Naomi Jarvis</li>
<li><b>FIU</b>: Mahmoud Kamel</li>
<li><b>JLab</b>: Amber Boehnlein, Jie Chen, Mark Ito
(chair), David Lawrence, Paul Mattione, Curtis Meyer,
Sandy Philpott, Eric Pooser, Nathan Sparks, Justin
Stevens, Simon Taylor</li>
<li><b>NU</b>: Sean Dobbs</li>
</ul>
<h3 style="page-break-after: avoid; font-weight: bold;"><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/2016-January/002207.html"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">sim-recon-1.9.0</a><span
class="Apple-converted-space"> </span>has been
released and built on the JLab CUE.
<ul style="list-style-type: square;">
<li>Simon mentioned that HDDS should be upgraded to
remove the piece of plastic attached to the nose of
the start counter in the repository.</li>
</ul>
</li>
<li><a rel="nofollow" class="external text"
href="https://mailman.jlab.org/pipermail/halld-offline/2016-January/002211.html"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">Compiler version survey
results</a>. Mark will propose moving to GCC 4.9.2 at
the Collaboration Meeting.</li>
<li><a rel="nofollow" class="external text"
href="https://mailman.jlab.org/pipermail/halld-offline/2016-January/002214.html"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">Proposed ROOT version bump</a>.
Mark did not receive any comment on his email. Unless
objections are heard, we will go to 5.34.34 for the next
release.</li>
<li>More<span class="Apple-converted-space"> </span><a
rel="nofollow" class="external text"
href="https://scicomp.jlab.org/scicomp/#/disk/volatile"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">volatile</a><span
class="Apple-converted-space"> </span>space our quota
(maximum possible use) increased from 35 TB to 40 TB and
our reservation (guaranteed space) increased from 10 TB
to 20 TB.</li>
</ol>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="Offline_Monitoring">Offline
Monitoring</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Paul took us through<span
class="Apple-converted-space"> </span><a
href="https://halldweb.jlab.org/wiki/index.php/Data_Monitoring_Procedures#Procedures:_Overview"
title="Data Monitoring Procedures" style="color: rgb(85,
34, 0); padding: 0px !important; text-decoration:
underline; background: transparent;">his plan for
monitoring and reconstructing</a><span
class="Apple-converted-space"> </span>the data from the
upcoming run, emphasizing work to be done during the run
itself. The main tasks are monitoring recently taken data,
monitoring launches of all runs, and an initial
comprehensive reconstruction pass.</p>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline"
id="Farm_usage_for_upcoming_run_and_one-node.2Fmulti-threaded_jobs">Farm
usage for upcoming run and one-node/multi-threaded jobs</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">With Paul's presentation as
background we discussed with Sandy and Jie how Computer
Center resources will be deployed to reconstruct the data.</p>
<ul style="list-style-type: square;">
<li>We will use the standard method (jmigrate) for
transferring raw data to tape, postponing use the
write-through cache until we have more experience using
it. We decided to go this route even though the
write-through cache would give us access to the raw data
without having to fetch them from tape.</li>
<li>We will try to exploit the new
one-node/one-multi-threaded-job nodes on the farm. If
more are needed, the Computer Center can re-configure
standard nodes to this purpose.</li>
<li>We will likely need a new gxproj account to run the
three tasks in parallel.</li>
<li>We expect that the data this run will be denser on
average than before because of relatively more data
taken in pulse-summary mode (mode 7).</li>
<li>The scripts for handling the incoming raw data task
need to be re-written to use SWIF.</li>
<li>For one-node/one-job jobs, Paul will start out using
the NTHREADS=NCORES option where the job senses the
number of effective cores on the machine. This will
result in 48 threads with our current nodes.</li>
<li>We will continue to submit one job per file, even with
the larger number of threads.</li>
<li>The Lustre outages are much reduced recently. It is
hope that running with a lower percentage of the disk
space devoted to user storage, BIOS upgrades, and a
return to default ZFS parameters will keep the system
out of trouble. If not there is an option to switch out
raid controllers in favor of host bus cards[?].</li>
</ul>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="Collaboration_Meeting"><a
href="https://halldweb.jlab.org/wiki/index.php/GlueX-Collaboration-Feb-2016"
title="GlueX-Collaboration-Feb-2016" style="color:
rgb(85, 34, 0); padding: 0px !important;
text-decoration: underline; background: transparent;">Collaboration
Meeting</a></span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">We added Paul to the agenda to talk
about Offline Monitoring. He intends to be brief.</p>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="Data_Challenge_3">Data Challenge
3</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Mark is copying raw data onto the
tape library. After that he will delete the files freeing
up a lot of space on the volatile disk.</p>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline"
id="Future_Commissioning_Simulations"><a
href="https://halldweb.jlab.org/wiki/index.php/Sim1_Conditions"
title="Sim1 Conditions" style="color: rgb(85, 34, 0);
padding: 0px !important; text-decoration: underline;
background: transparent;">Future Commissioning
Simulations</a></span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Mark submitted 90 more jobs in
addition to the 10 pilot jobs run last week.</p>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">We realized that the HDDS change
Simon mentioned earlier (removing the plastic test target)
should be incorporated in this round of simulation. Also
Mark forgot to use run number 10,000 for the initial jobs.
We will have to re-tag and re-run. Simon is working on
improvements to the energy loss correction for electrons
and positrons but those are not ready yet. On a related
issue, Paul is almost done with his overhaul of kinematic
fitting in the analysis library.</p>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Justin mentioned that the JEF group
is interested in using the results of this simulation
round to estimate background levels for eta signals.</p>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline"
id="Using_the_.22Issues.22_Feature_of_GitHub">Using the
"Issues" Feature of GitHub</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Sean has recently submitted several<span
class="Apple-converted-space"> </span><a rel="nofollow"
class="external text"
href="https://github.com/JeffersonLab/sim-recon/issues"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">sim-recon "issues"</a><span
class="Apple-converted-space"> </span>on the GitHub
site. This is a convenient place to report problems or
suggestions in a place where they can be discussed,
documented, and referenced. In particular a pull request
can refer to the issue it resolves. He already has
received feedback on a couple of the recent submissions.</p>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline"
id="HDPM:_Binary_Distribution_for_OSX_Available">HDPM:
Binary Distribution for OSX Available</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Nathan announced that binary
distributions for El Capitan are now available via the
HDPM "fetch-dist" command. See the documentation on the<span
class="Apple-converted-space"> </span><a rel="nofollow"
class="external text"
href="https://github.com/JeffersonLab/hdpm/wiki"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">HDPM wiki</a><span
class="Apple-converted-space"> </span>for details.</p>
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