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Colleagues,<br>
<br>
Find the minutes below and at<br>
<br>
<a class="moz-txt-link-freetext" href="https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_November_11,_2015#Minutes">https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_November_11,_2015#Minutes</a><br>
<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,
November 11, 2015</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>: Mike Staib</li>
<li><b>JLab</b>: Mark Ito (chair), David Lawrence, Paul
Mattione, Kei Moriya, Dmitry Romanov, Nathan Sparks,
Simon Taylor, Beni Zihlmann</li>
<li><b>NU</b>: Sean Dobbs</li>
<li><b>UConn</b>: James McIntyre</li>
</ul>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">There is a<span
class="Apple-converted-space"> </span><a rel="nofollow"
class="external text"
href="https://bluejeans.com/s/8NzB/" style="color:
inherit !important; padding: 0px !important;
text-decoration: inherit !important; background:
transparent;">recording of this meeting</a><span
class="Apple-converted-space"> </span>on the BlueJeans
site.</p>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="Announcements">Announcements</span></h3>
<ul style="list-style-type: square;">
<li><b>New work disk: /work/halld2</b>. See<span
class="Apple-converted-space"> </span><a
rel="nofollow" class="external text"
href="https://mailman.jlab.org/pipermail/halld-offline/2015-November/002162.html"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">Mark's email announcement</a>.</li>
<li><b>New private wiki released</b>. (<a rel="nofollow"
class="external text"
href="https://mailman.jlab.org/mailman/private/gluex-collaboration/2015-November/004139.html"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">Email Announcement</a>) (<a
href="https://halldweb.jlab.org/wiki-private/index.php/Main_Page"
class="extiw" title="privatewiki:Main Page"
style="color: rgb(85, 34, 0); padding: 0px !important;
text-decoration: underline; background: transparent;">Private
Wiki</a>)</li>
</ul>
<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;">Kei gave the report. Version 17 was
started last Friday, but after it was done he discovered
that the monitoring plugins had not been included in the
jobs. So on Saturday, Kei launched version 18, correcting
the omission. It only took 30 hours to run, but the
reasons for better performance are not known at present.
From<span class="Apple-converted-space"> </span><a
rel="nofollow" class="external text"
href="https://halldweb.jlab.org/wiki/images/a/ab/2015-11-11-offline_monitoring.pdf"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">his slides</a>, his concluding
bullets were:</p>
<ul style="list-style-type: square;">
<li>See much less resource use for both RAM and time,
still investigating</li>
<li>Studies ongoing of time/resources against
#cores/threads shown at collaboration meeting with
improvements in tracking</li>
<li>No updates from SciComp on hogging all cores on a
single node</li>
<li>Next launch: November 20 (Fri)</li>
</ul>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="Geant4_Update">Geant4 Update</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">David gave us an update. He recently
tried to download and build HDGeant4 from the Git
repository, but linking failed (problem with threaddb[?]).
The Geant4 cmake system adds opacity.</p>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Geant4 has been installed on the
Gluon Cluster. The CPP simulation has been built against
this version and runs albeit without multi-threading
presently.</p>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="recon2mc_Plugin">recon2mc Plugin</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">David submitted a<span
class="Apple-converted-space"> </span><a rel="nofollow"
class="external text"
href="https://github.com/JeffersonLab/sim-recon/pull/92"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">pull request</a><span
class="Apple-converted-space"> </span>for a new plugin.
From his submission:</p>
<blockquote>recon2mc plugin can be used for writing
reconstructed track parameters into an HDDM file that can
then be used as input to hdgeant and CPPsim. This is to
allow one to easily simulate a sample of tracks with a
similar kinematic distribution to real data.</blockquote>
<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 gave an update on<span
class="Apple-converted-space"> </span><a
href="https://halldweb.jlab.org/wiki/index.php/Data_Challenge_3"
title="Data Challenge 3" style="color: rgb(85, 34, 0);
padding: 0px !important; text-decoration: underline;
background: transparent;">Data Challenge 3</a>.</p>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">The problem with failed
reconstruction of simulated data persisted with a recent
version of the software. Sean came through with the
correct command line options; problem solved. Even though
the old software version might work with the new options,
Mark will press on with the more recent code and generate
new fake data.</p>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">There was a SWIF problem with
deleting and re-creating workflows that has stopped
progress. Chris Larrieu is working on a fix.</p>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="Future_Simulations">Future
Simulations</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Sean gave the update.</p>
<ul style="list-style-type: square;">
<li>Mark ran a few pilot jobs for<span
class="Apple-converted-space"> </span><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;">Sim1</a>. They look fine.
Some of the plugins had hard-wired beam energy cuts not
appropriate for 12 GeV running; these will need
adjustment.</li>
<li>Decided to generate events between 4 and 12 GeV. The
lower limit was lowered to account for low energy events
leaking up into the data sample.</li>
<li>Plan is to generate about 2 millions events to start
with, look at those, then generate about one day of day
of data, about 1.5 billion events.</li>
<li>We will begin concentrating on standard beam photon
rates, 1 × 10<sup>7</sup>/s.</li>
<li>Richard Jones has a web tools for calculating the
correct BGRATE parameter, but the site is down right
now.</li>
<li>We are thinking of adding some information into the
REST file with values that are used for the trigger
decision, i. e., energy sums. That would allow studies
of trigger thresholds. This will have to be developed.</li>
</ul>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="Calibration_Challenge">Calibration
Challenge</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Sean reported on the plan for a<span
class="Apple-converted-space"> </span><a
href="https://halldweb.jlab.org/wiki/index.php/Calibration_Challenge"
title="Calibration Challenge" style="color: rgb(85, 34,
0); padding: 0px !important; text-decoration: underline;
background: transparent;">Calibration Challenge</a>. We
would start with neutral values for calibration constants
(without channel-to-channel variation) and see if we can
generate constants in an automated, multi-pass process.
Code will have to be modified to fit into this paradigm,
e. g., using histograms rather than generating a
heterogeneous set of ROOT trees. There is multi-stage
feature of SWIF that we may be able to exploit.</p>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline"
id="Binary_Distributions_of_GlueX_Software">Binary
Distributions of GlueX Software</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Nathan gave a report on a project he
has been working on to produce pre-compiled versions of
GlueX Software for use on computers that cannot access the
public builds at JLab. He is using Docker containers to
create binaries for a variety of Linuxes. Three slides
from his<span class="Apple-converted-space"> </span><a
rel="nofollow" class="external text"
href="https://halldweb.jlab.org/talks/2015/fetch-dist_111115.pdf"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">presentation</a>:</p>
<ol>
<li>Motivation
<ol>
<li>Provide precompiled dependencies to build
development code against in size amenable to
transport
<ul style="list-style-type: square;">
<li>Not needed when developing on JLab CUE, since
halld group builds are already provided there</li>
<li>Useful instead for users working offsite or at
home</li>
</ul>
</li>
<li>Provide prebuilt code that is ready to be deployed
into production/Farm or utilized offsite for
high-level analysis</li>
<li>Facilitate comparing behavior/results of programs
across Git commits (keep something like the latest
10 commits)</li>
</ol>
</li>
<li>Installing Binary Distribution
<ul style="list-style-type: square;">
<li>hdpm command-line-interface<br>
<ol>
<li>hdpm fetch-dist
<ul style="list-style-type: square;">
<li>install latest available binaries for your
platform</li>
</ul>
</li>
<li>hdpm fetch-dist [commit hash]
<ul style="list-style-type: square;">
<li>install binaries for particular sim-recon
commit</li>
</ul>
</li>
<li>hdpm fetch-dist [url or path]</li>
</ol>
</li>
<li>Source the environment setup script</li>
</ul>
</li>
<li>Outlook
<ul style="list-style-type: square;">
<li>Package sim-recon for OS X</li>
<li>Requires some additional dependencies</li>
<li>Other potential Docker applications</li>
<li>Deploying sim-recon to cloud for simulation
workloads</li>
</ul>
</li>
</ol>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="b1pi_results_review">b1pi
results review</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">We looked through some recent and
some past results from the<span
class="Apple-converted-space"> </span><a
href="https://halldweb.jlab.org/wiki/index.php/Automatic_Tests_of_GlueX_Software"
title="Automatic Tests of GlueX Software" style="color:
rgb(85, 34, 0); padding: 0px !important;
text-decoration: underline; background: transparent;">b1pi
tests</a>. There was a lot of discussion about the
various features of the plots and which changes in the
software might have caused shifts in those features. See
the<span class="Apple-converted-space"> </span><a
rel="nofollow" class="external text"
href="https://bluejeans.com/s/8Ocm/" style="color:
inherit !important; padding: 0px !important;
text-decoration: inherit !important; background:
transparent;">recording</a>, starting at the 54:00 mark.</p>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">One conclusion of the discussion is
that we might want to output results in a more digestible
format, and make it easier to compare across different
runs of the tests. Using the offline monitoring webpages
are an option.</p>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="Review_of_recent_pull_requests">Review
of recent pull requests</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">We reviewed<span
class="Apple-converted-space"> </span><a rel="nofollow"
class="external text"
href="https://github.com/JeffersonLab/sim-recon/pulls?q=is%3Aopen+is%3Apr"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">pull requests</a><span
class="Apple-converted-space"> </span>submitted since
the last meeting. See the<span
class="Apple-converted-space"> </span><a rel="nofollow"
class="external text"
href="https://bluejeans.com/s/8Ocm/" style="color:
inherit !important; padding: 0px !important;
text-decoration: inherit !important; background:
transparent;">recording</a><span
class="Apple-converted-space"> </span>starting at the
1:11:00 mark for the full discussion. We looked at:</p>
<ul style="list-style-type: square;">
<li><a rel="nofollow" class="external text"
href="https://github.com/JeffersonLab/sim-recon/pull/91"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">Comment out error "q too
large for FDC" that can appear every event.</a></li>
<li><a rel="nofollow" class="external text"
href="https://github.com/JeffersonLab/sim-recon/pull/90"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">Davidl parse flags and leak
plug</a></li>
<li><a rel="nofollow" class="external text"
href="https://github.com/JeffersonLab/sim-recon/pull/88"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">Re-enable the
EVIO:LOOP_FOREVER feature. This was previously only
wor...</a></li>
<li><a rel="nofollow" class="external text"
href="https://github.com/JeffersonLab/sim-recon/pull/87"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">DGeometry BCAL methods and
DBCALGeometry.</a></li>
<li><a rel="nofollow" class="external text"
href="https://github.com/JeffersonLab/sim-recon/pull/85"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">Lots of warning supression.</a></li>
<li><a rel="nofollow" class="external text"
href="https://github.com/JeffersonLab/sim-recon/pull/83"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">Remove unsupported compiler
flag for clang builds</a></li>
</ul>
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