[Halld-offline] Software Meeting Minutes, February 4, 2020

[Mark Ito]

Colleagues,

Please find the minutes for today's software meeting here 
<https://halldweb.jlab.org/wiki/index.php/Gluex_Software_Meeting,_February_4,_2020#Minutes> 
and below.

   -- Mark


  Gluex Software Meeting, February 4, 2020, Minutes

Present:

  * *CMU *: Naomi Jarvis
  * *JLab *: Alex Austregesilo, Mark Ito (chair), Igal Jaegle, David
    Lawrence, Keigo Mizutani, Simon Taylor, Beni Zihlmann

There is a recording of his meeting <https://bluejeans.com/s/3Iabu/> on 
the BlueJeans site. Use your JLab credentials to access it.


      Announcements

 1. /volatile/halld moving to a new Lustre system
    <https://mailman.jlab.org/pipermail/halld-offline/2020-January/003885.html>.
    The transition started today. Move your files from the old volatile
    disk to the new.
 2. New version set: version_4.14.0.xml, update release of RCDB
    <https://mailman.jlab.org/pipermail/halld-offline/2020-February/003896.html>.
    Needed to select good runs for the current run.
 3. Default CCDB server on farm is now the MySQL server on
    hallddb-farm.jlab.org
    <https://mailman.jlab.org/pipermail/halld-offline/2020-January/003890.html>.
    History Plot
    <https://halldweb.jlab.org/disk_management/mysql_servers_2.png>. The
    change from MyISAM to InnoDB did not have a huge effect. There are
    now four VMs as part of hallddb-farm.jlab.org: hallddb-a, b, c, and d.


      Review of Minutes from the Last Software Meeting

We went over [[GlueX Software Meeting, January 21, 2020#Minutes|the 
minutes from January 21] without significant comment.


      Review of Minutes from the Last HDGeant4 Meeting

We went over the minutes from January 28 
<https://halldweb.jlab.org/wiki/index.php/HDGeant4_Meeting,_January_28,_2020#Minutes> 
without significant comment.


      Dask and Jlab @ Jlab

Thomas gave us a demo of the JupyterLab 
<https://jupyterlab.readthedocs.io/en/stable/#> (JLab) installation at 
Jefferson Lab (JLab). The demo is in the recording, but technical 
difficulties may make it hard to follow. Luckily, Thomas prepared slides 
<https://halldweb.jlab.org/DocDB/0043/004318/001/Jupyter_dask.pdf> that 
highlight the important concepts. All of the JLab Nuclear Physics farm 
is available via this interface. With great power comes great 
responsibility.


      Review of recent discussion on the GlueX Software Help List

Igal posted a question on the help list with subject Something went 
wrong with mcsmear - status code: 139 
<https://groups.google.com/forum/#!topic/gluex-software/6YIyFwx4TAw>. 
Interestingly, Thomas reported that starting some time ago, MCwrapperBot 
has had crashes in mcsmear with the same exit code. Sean Dobbs has 
agreed to look into it.


      Collaboration Meeting

Sean and Mark have discussed talks at the Offline session of the 
collaboration meeting. The current plan is for Mark to give an overview 
including news from the HDGeant4 meetings and slides from Thomas on 
MCwrapper, Sean will summarize analysis and calibration, and Alex will 
report on launches (if he agrees to do so). Other topics can be 
accommodated. If you have a talk you would like to give please contact 
Sean or Mark.

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  * This page was last modified on 4 February 2020, at 18:59.

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