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Folks,<br>
<br>
Find the minutes below and at<br>
<br>
<a class="moz-txt-link-freetext" href="https://halldweb1.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_October_29,_2014">https://halldweb1.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_October_29,_2014</a><br>
<br>
-- Mark<br>
____________________________________________<br>
<br>
<br>
<div id="column-content">
<div id="content">
<div id="bodyContent"> <span class="mw-headline" id="Minutes">Minutes</span><br>
<br>
Present:
<br>
<ul>
<li> <b>CMU</b>: Will Levine
</li>
<li> <b>Kansas City</b>: Paul Mattione
</li>
<li> <b>JLab</b>: Alex Barnes, Sean Dobbs, Paul Eugenio,
Mark Ito (chair), David Lawrence, Kei Moriya, Simon
Taylor, Aristeidis Tsaris
</li>
</ul>
<br>
<span class="mw-headline"
id="Review_of_Minutes_from_October_15">Review of Minutes
from October 15</span><br>
<br>
We went over the <a
href="https://halldweb1.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_October_15,_2014#Minutes"
title="GlueX Offline Meeting, October 15, 2014">minutes from
the last meeting</a>.
<br>
<br>
<span class="mw-headline"
id="Simulated_HDDM_to_EVIO_Conversion">Simulated HDDM to
EVIO Conversion</span><br>
<br>
Sean has enhanced the fix to the <a
href="https://halldweb1.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_September_17,_2014#100_ns_Shift_Issue:_an_effective_time_cut"
title="GlueX Offline Meeting, September 17, 2014">100-ns-Shift/effective-time-cut
issue</a> by adding a cut on the maximum time that will
appear in the EVIO-formatted file. This emulates the hardware
in that the time window read-out need not correspond the time
window generated in simulation. This change was prompted by
Kei noticing that the number hits from the Time-of-Flight in
simulated data often exceeded the maximum set by the
convert-to-EVIO program. This in turn was due to the 1.6 μs
window in recent simulated data to capture all hits in
tracking chambers with their long drift times. Each detector
system has an independently adjustable time window now.
<br>
<br>
<span class="mw-headline" id="Version_Management">Version
Management</span><br>
<br>
Mark gave a <a
href="https://halldweb1.jlab.org/wiki/images/1/19/Versioning.pdf"
class="internal" title="Versioning.pdf">talk</a> at last
week's Calibration Meeting on his software-version
specification system. The system has been incorporated into
the current <a
href="https://halldweb1.jlab.org/wiki/index.php/Scripts_for_Installing_GlueX_Software"
title="Scripts for Installing GlueX Software">GlueX Install</a>
system.
<br>
<br>
<span class="mw-headline"
id="itrack.2C_track.2C_and_the_Truth">itrack, track, and the
Truth</span><br>
<br>
We decided to postpone discussion of <a
href="https://mailman.jlab.org/pipermail/halld-offline/2014-October/001847.html"
class="external text" rel="nofollow">this change</a> until
either Richard or Justin can lead it.
<br>
<br>
<span class="mw-headline" id="BCAL_Dark_Noise_Hits">BCAL Dark
Noise Hits</span><br>
<br>
Will and David explained the current problem with dark noise
hits in the BCAL. The rate is about right but our assumption
about the amplitude of the hits is off. In addition the
calibration scheme subtracts dark energy from the hits. <br>
The plan is to take real data with a random trigger to assess
the real situation now that the BCAL in installed and
instrumented.
<br>
This will be discussed at the BCAL Reconstruction Meeting
tomorrow.
<br>
<br>
<span class="mw-headline" id="Commissioning_Simulations">Commissioning
Simulations</span><br>
<br>
Sean presented preliminary rate estimates from his analysis of
recent EM-background-only simulations with the commissioning
geometry. See <a
href="https://halldweb1.jlab.org/wiki/images/6/6e/GlueX_Calib_20141029.pdf"
class="internal" title="GlueX Calib 20141029.pdf">his slides</a>
for the plots. Assumptions:
<br>
<ul>
<li> 100 nA electron beam
</li>
<li> 10 μm Al radiator
</li>
<li> 2 mm plastic target
</li>
</ul>
<br>
Rates are presented in kilohertz for both field on (1200 A)
and field off. Estimates for all detector systems are
included.
<br>
Sean also reviewed a recent <a
href="https://halldweb1.jlab.org/wiki/index.php?title=Normalization_of_Commissioning_Beam_Simulations_email_from_Richard_Jones&action=edit&redlink=1"
class="new" title="Normalization of Commissioning Beam
Simulations email from Richard Jones (page does not exist)">Normalization
of Commissioning Beam Simulations email from Richard Jones</a>
on how to convert the number of hits in the simulation runs to
detector rates with the given conditions.
<br>
<br>
<span class="mw-headline" id="Offline_Data_Monitoring">Offline
Data Monitoring</span><br>
<br>
Paul M. moderated the discussion.
<br>
<ul>
<li> David is working on a scheme to copy root files from
the Gluon Cluster to the work disk in the Computer Center
so they can be viewed on the web.
</li>
<li> Simon had updated several code components for the PS
<ol>
<li> geometry in HDDS
</li>
<li> hit routines in HDGeant
</li>
<li> sim-recon hit objects for PS and PSC
</li>
<li> monitoring histograms for online monitoring
</li>
</ol>
<ul>
<li> Digi-hits have not been addressed yet.
</li>
</ul>
</li>
<li> Kei reported on work establishing the online monitoring
histogram generation in the offline environment.
<ul>
<li> No plugins yet for TAGM
</li>
<li> FDC plots have been added
</li>
<li> Pedestal calculations are still work in progress.
</li>
<li> Plots for other detectors based on 1M events with
no EM bg: <a
href="https://halldweb1.jlab.org/wiki/images/9/93/9101.pdf"
class="external text" rel="nofollow">run 9101</a>
(1200 A solenoid current) <a
href="https://halldweb1.jlab.org/wiki/images/2/22/9102.pdf"
class="external text" rel="nofollow">run 9102</a>
(no solenoid current)
</li>
<li> He is in the process of writing and testing scripts
for running offline monitoring.
</li>
</ul>
</li>
<li> Paul reported for Justin. There have been improvements
in the web pages for viewing offline monitoring data to
improve the user experience. See the links below.
<ul>
<li> <a
href="https://halldweb1.jlab.org/cgi-bin/data_monitoring/ver0.2/runBrowser.py"
class="external text" rel="nofollow">Run Browser</a>
</li>
<li> <a
href="https://halldweb1.jlab.org/cgi-bin/data_monitoring/ver0.2/timeSeries.py"
class="external text" rel="nofollow">Time Series</a>
</li>
</ul>
</li>
<li> Sean is trying to collect the various items of online
information such as run start and end times, EPICS
variables, configuration settings and the like, for
inclusion in the offline monitoring database.
</li>
<li> The goal is to be ready to start running jobs as soon
as beam data becomes available in the tape library.
</li>
</ul>
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<li id="lastmod"> This page was last modified on 31 October
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<pre class="moz-signature" cols="72">--
Mark M. Ito, Jefferson Lab, <a class="moz-txt-link-abbreviated" href="mailto:marki@jlab.org">marki@jlab.org</a>, (757)269-5295</pre>
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