<div dir="ltr">Hello Mark,<div><br></div><div>From the minutes, "</div><ul style="font-size:12.8000001907349px"><li style="margin-left:15px"><b>HDGeant now uses RF period in CCDB</b>. Paul checked in a change such that HDGeant will look up the bunch frequency from the CCDB when simulating electromagnetic background. The current setting in the database is 499 MHz.</li></ul><div><span style="font-size:12.8000001907349px">I am not sure which change that refers to, but yesterday I checked in a change to HDGeant that fits this description. The current setting in the database is close to 250 MHz, not 500 MHz. This is what I see when I run hdgeant with a RUNNO set to a number in the current range, eg 2933:</span></div><div><span style="font-size:12.8000001907349px"><br></span></div><div><pre style="color:rgb(0,0,0)"> settofg: beam_bucket_period_ns set to 4.0080161 </pre></div><div><span style="font-size:12.8000001907349px"><br></span></div><div><span style="font-size:12.8000001907349px">-Richard Jones</span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Apr 29, 2015 at 4:30 PM, Mark Ito <span dir="ltr"><<a href="mailto:marki@jlab.org" target="_blank">marki@jlab.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Folks,<br>
<br>
Please find the minutes below and at<br>
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<a href="https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_April_29,_2015" target="_blank">https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_April_29,_2015</a><br>
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-- Mark<br>
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<div dir="ltr" lang="en">GlueX Offline Software Meeting<br>
<span>Minutes</span><br>
<br>
Present:
<br>
<ul>
<li> <b>CMU</b>: Curtis Meyer</li>
<li> <b>FSU</b>: Aristeidis Tsaris</li>
<li> <b>JLab</b>: Mark Ito (chair), David Lawrence,
Paul Mattione, Kei Moriya, Nathan Sparks, Justin
Stevens, Simon Taylor</li>
<li> <b>NU</b>: Sean Dobbs</li>
</ul>
<br>
<span>Announcements</span><br>
<ul>
<li> <b>Nightly build results on web</b>. Mark has put
the <a rel="nofollow" href="https://halldweb.jlab.org/nightly/nightly_build_errors.txt" target="_blank">summary
of nightly build errors and warnings</a> on the web.
He led us through the <a rel="nofollow" href="https://mailman.jlab.org/pipermail/halld-offline/2015-April/002015.html" target="_blank">email</a>
announcing it.</li>
<li> <b>HDGeant now uses RF period in CCDB</b>. Paul
checked in a change such that HDGeant will look up the
bunch frequency from the CCDB when simulating
electromagnetic background. The current setting in the
database is 499 MHz.</li>
</ul>
<br>
<span>Review of minutes
from April 15</span><br>
<br>
We went over the <a href="https://halldweb.jlab.org/wiki/index.php/GlueX_Offline_Meeting,_April_15,_2015#Minutes" title="GlueX Offline Meeting, April 15, 2015" target="_blank">minutes
from last time</a>.
<br>
<br>
David gave us an update on his Geant4 implementation. He
as put in the FDC and FCAL and can reconstruct tracks in
the FDC with resolution comparable with those found with
HDGeant. He ran into an issue with multi-threading; a bug
report has been submitted to the Geant4 Collaboration.
<br>
<br>
<span>Offline
Monitoring</span><br>
<br>
Kei reported he has run over most of the files collected
in the last week of data-taking. The volume of data is
small, it only takes a few hours to run over everything.
<br>
<br>
We then discussed doing a final run over the Fall data so
that people can use the data to prepare for the
collaboration meeting. There is a change to get the
setting of the F1-TDC parameters from the CCDB that Justin
checked in yesterday. There are also new TOF timing
constants that we are not taking advantage of yet. In
addition Lubomir also has new FDC alignment numbers. For
all of these reasons a re-run seems desirable but time is
running short to have the data available in time to be
useful. We agreed on a launch time target at the end of
the day on Friday.
<br>
<br>
There was a bit of discussion of what data we have from
the current run. Most of it is in run 2931, which is
contained in just over 100 files and has about 75 million
events. Data were taken in mode 7 with an FCAL-BCAL
trigger.
<br>
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<span>Spring 2015
Commissioning Simulations</span><br>
<br>
Sean described the <a href="https://halldweb.jlab.org/wiki/index.php/Spring_2015_Commissioning_Simulations" title="Spring 2015 Commissioning Simulations" target="_blank">conditions</a>
he is proposing and solicited feedback. The software has
been tagged but not released. Paul noted that the nominal
position of the coherent peak is 3.4 GeV. The gxproj4
account will be used to run the jobs.
<br>
<br>
On a side note, Mark has put in a request to the Computer
Center for a <a href="https://halldweb.jlab.org/wiki/index.php/GlueX-related_shared_accounts_on_the_JLab_CUE" title="GlueX-related shared accounts on the JLab CUE" target="_blank">gxproj5</a>
account.
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