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    <p>Folks,</p>
    <p>Please find the minutes below and at</p>
    <p> 
<a class="moz-txt-link-freetext" href="https://halldweb.jlab.org/wiki/index.php/GlueX_Containers_Meeting,_April_27,_2018#Minutes">https://halldweb.jlab.org/wiki/index.php/GlueX_Containers_Meeting,_April_27,_2018#Minutes</a></p>
    <p>  -- Mark</p>
    <p>___________</p>
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          <h2 id="firstHeading" class="firstHeading" lang="en"><span
              dir="auto">GlueX Containers Meeting, April 27, 2018</span><span
              class="mw-headline" id="Minutes">, Minutes</span></h2>
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              <p>Present: Richard Jones, Mark Ito, Thomas Britton, Sean
                Dobbs
              </p>
              <h3><span class="mw-headline"
                  id="Notes_from_the_last_Containers_Meeting">Notes from
                  the last Containers Meeting</span></h3>
              <p>We went over the <a
href="https://halldweb.jlab.org/wiki/index.php/GlueX_Containers_Meeting,_April_13,_2018"
                  title="GlueX Containers Meeting, April 13, 2018">notes</a>
              </p>
              <ul>
                <li> Still no progress on a unified Singularity
                  container for grid and non-grid use. This needs to get
                  done.</li>
                <li> Sean sent Mark a <a rel="nofollow" class="external
                    text"
                    href="https://opensciencegrid.github.io/docs/data/install-xrootd/">link
                    to XROOTD instructions</a> from the OSG. Mark has
                  started going down that road. Turns out XROOTD is
                  available as an RPM from the EPEL repository on RHEL7!</li>
                <li> The large bggen simulation on the OSG has been hung
                  up on a build problem on the target git branch and
                  lack of random trigger file skims. The build problem
                  (with creating the HDDM Python module has been
                  sidestepped on the branch for now.</li>
              </ul>
              <h3><span class="mw-headline"
                  id="Running_Private_Plug-Ins_on_the_Grid">Running
                  Private Plug-Ins on the Grid</span></h3>
              <p>Thomas raised the issue. If users would like to have
                their private plugins run as part of a
                collaboration-blessed grid campaign, we need a mechanism
                for getting that done. Private code is not (at present)
                served by CVMFS. Thomas noted that the same issue
                obtains with private event generators.
              </p>
              <p>Richard recounted a story from an ALICE collaborator.
                They simply do not allow such things.
              </p>
              <p>We settled on a provisional solution: collaborators who
                need private code must first check in their plugin on
                the sim-recon tree. Then inclusion on CVMFS is
                relatively easy.
              </p>
              <h3><span class="mw-headline" id="Container_News_from_FSU">Container
                  News from FSU</span></h3>
              <p>Sean reported that he used our <a
href="https://halldweb.jlab.org/wiki/index.php/HOWTO_use_the_GlueX_Singularity_Container"
                  title="HOWTO use the GlueX Singularity Container">Singularity
                  container system</a> (such as it is) to run jobs on
                the FSU HPC cluster. Turns out it was not that hard.
              </p>
              <p>Thomas promised SLURM support in MCwrapper in the
                future.
              </p>
              <h3><span class="mw-headline" id="Meeting_Time">Meeting
                  Time</span></h3>
              <p>Now that the semester is over and major issues have
                been dealt with we agreed to fold container meeting
                topics into the bi-weekly Offline Software Meetings
                (OSM) and stop these stand-alone containers meetings.
                The next OSM is in a week. Thomas is your guest
                chairman.
              </p>
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          <li id="lastmod"> This page was last modified on 27 April
            2018, at 20:07.</li>
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