<html><head><style type="text/css">p { margin: 0; }</style></head><body><div dir="auto">Hi all,<br><br></div>
<div dir="auto">I cant join the meeting today. Will read the mi utes today and send an email if I have things to add with respect to analysis trains.<br><br></div>
<div dir="auto">Nick</div>
<div class="gmail_quote" >On Aug 2, 2018, at 14:55, Eugene Pasyuk <<a href="mailto:pasyuk@jlab.org" target="_blank">pasyuk@jlab.org</a>> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div style="font-family: arial,helvetica,sans-serif; font-size: 10pt; color: #000000">This is something we need to discuss at today's meeting: what skimming we would like to request. Be prepared with you suggestions.<br><br><div><span name="x"></span>-Eugene<span name="x"></span><br></div><br><hr id="zwchr"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Raffaella De Vita" <Raffaella.Devita@ge.infn.it><br><b>To: </b>"Eugene Pasyuk" <pasyuk@jlab.org><br><b>Cc: </b>"clas12 first exp" <clas12_first_exp@jlab.org><br><b>Sent: </b>Thursday, August 2, 2018 8:49:31 AM<br><b>Subject: </b>Re: [Clas12_first_exp] Analysis trains and skims<br><br>
Dear Eugene,<br>
has Latifa mentioned in her emails yesterday, the plan for the first
experiment is to have skims collected by next Wednesday. However, it
would be good to get request before the end of the week, tomorrow
EOB, to be able to run some tests during the weekend and check the
skim sizes.<br>
Best regards,<br>
Raffaella<br>
<br>
<div class="moz-cite-prefix">Eugene Pasyuk wrote:<br>
</div>
<blockquote cite="mid:1275d60c-dd8f-4410-963c-dbfa48e30b17@jlab.org">
<div dir="auto">Raffaella, <br>
<br>
</div>
<div dir="auto">Any definite date we need to come up with the
train requests? <br>
<br>
</div>
<div dir="auto">-Eugene</div>
<div style="font-size:10.0pt;font-family:"Tahoma","sans-serif";padding:3.0pt 0in 0in 0in">
<hr style="border:none;border-top:solid #E1E1E1 1.0pt">
<b>From:</b> Raffaella De Vita <br>
<b>Sent:</b> Wed Aug 01 22:16:50 EDT 2018<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:clas12_first_exp@jlab.org" target="_blank">clas12_first_exp@jlab.org</a><br>
<b>Subject:</b> [Clas12_first_exp] Analysis trains and skims<br>
</div>
<br>
Dear All, <br>
here is more information about the status of analysis trains and
about the feedback that would be useful to have from collaborators
to start more accurate tests. <br>
<br>
Gagik has released the first version of the analysis train
software. <br>
- Analysis trains are conceived to do "event selection": they use
DSTs as input, i.e. cooked files with all events but only the
banks that are relevant for the analysis (see Nathan's
documentation at <a class="moz-txt-link-freetext" href="https://clasweb.jlab.org/wiki/index.php/CLAS12_DSTs" target="_blank">https://clasweb.jlab.org/wiki/index.php/CLAS12_DSTs</a>),
and for now to output skims for different event topologies with
the same hipo format and the same banks of the input files. <br>
- Different skims, defined based on user requests, make the train
"wagons". After collecting user requests for wagons, trains will
be run centrally by a single chef, to optimize the efficiency of
the skimming process and avoid I/O problems that are expected to
arise with several people trying to access large DST volumes
simultaneously. <br>
- Skim conditions can be defined based on the number and type of
final state particles as explained in Gagik's documentation at <a class="moz-txt-link-freetext" href="https://userweb.jlab.org/%7Egavalian/docs/sphinx/hipo/html/chapters/analysis_train.html#event-filters" target="_blank">https://userweb.jlab.org/~gavalian/docs/sphinx/hipo/html/chapters/analysis_train.html#event-filters</a>.
<br>
<br>
To define the first trains and start testing the overall process,
we would like to ask collaborators to come up with requests for
final state topologies for their favorite reactions: <br>
- check the instructions at <a class="moz-txt-link-freetext" href="https://userweb.jlab.org/%7Egavalian/docs/sphinx/hipo/html/chapters/analysis_train.html#event-filters" target="_blank">https://userweb.jlab.org/~gavalian/docs/sphinx/hipo/html/chapters/analysis_train.html#event-filters</a>
and send us your "wagon" definition; <br>
- keep in mind that, for a skim to be useful, it should correspond
to a small fraction of the input data; you can estimate the
reduction factor of your proposed skimming condition using the
sample DSTs available in
/work/clas12/clas12/data/calib/dst_5bp6p1/; the overall train
output size (sum of all skims that will be collected) should be
less than 50% of the input DST; <br>
- once requests will be collected and reviewed to remove possible
duplications, a train will be assembled and tests will begin. <br>
<br>
Best regards, <br>
Raffaella <br>
<br>
<br>
<br>
<br>
<br>
<div class="moz-cite-prefix"> Latifa Elouadrhiri wrote: <br>
</div>
<blockquote cite="mid:f19f9cca-3703-8171-8e9c-ece26ba6c417@jlab.org">
<p>Dear all,</p>
<p>The meeting this morning is cancelled.</p>
<p>The meeting agenda for next week will focus on the following:</p>
<p><b>Spring Run</b></p>
<ul>
<li>Status of the data processing<br>
</li>
<li>Analysis trains for each one of the major analysis group:
please send me the requested filtering so far I have the one
from SIDIS (Harut) and From Nucleon Structure (Ralf).</li>
</ul>
<p><b>Fall Run</b><br>
</p>
<ul>
<li>We will review where we are in term of tracking efficiency
based on the latest release and make decision on the
luminosity for the upcoming run</li>
<li>List of run coordinators <br>
</li>
<li>Run plan</li>
</ul>
<p>Best regards,</p>
<p>Latifa<br>
</p>
<p><br>
</p>
<br>
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<br>
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