[Halld-offline] Data Challenge Meeting Minutes, November 19, 2012

[Mark M. Ito]

Find the minutes below and at

 
https://halldweb1.jlab.org/wiki/index.php/GlueX_Data_Challenge_Meeting,_November_19,_2012#Minutes
___

GlueX Data Challenge Meeting, November 19, 2012

Minutes

    Present:
      * CMU: Paul Mattione, Curtis Meyer
      * JLab: Mark Ito (chair), David Lawrence, Dmitry Romanov, Simon
        Taylor
      * UConn: Richard Jones

Review of Minutes from the Last Meeting

    We reviewed the [20]GlueX Data Challenge Meeting, November 5,
    2012#Minutes!minutes from the November 5th meeting. Mark said the
    [21]difficulties he was having getting a build have been overcome in
    the interim.

Data Challenge Configuration

    Reviewed the [22]conditions page and discussed some details of the
    challenge:
      * run number all files will be a part of run 9000
      * file naming convention Mark will propose one
      * random number seed We will make sure that the seeds used for bggen,
        hdgeant, and mcsmear are all recorded in the output file. David
        will have to modify his previous implementation of this feature to
        accommodate all of these seeds. Richard propsed (some time ago) a
        web sevice that would distribute and record seeds. Although an
        attractive idea, we probably not get to that for this challenge.
        Mark will propose the seed generation scheme.
      * number of events per file Mark will make a proposal.
      * Cerenkov processes We will not turn on Cerenkov radiation. There
        are no detector element for which this physics process makes a
        difference in the artificial world of HDGeant.

Site Status

JLab

    Mark ran a mini-data challenge over the weekend of 100 million events
    (1000 jobs, 100 k events each) using the configuration on the web page.
    Simulation and reconstruction were done in the same job and only the
    REST format data were kept. 224 jobs ran in parallel and each one took
    about 10 hours of CPU time and used about 1 GB of memory. More
    simultaneous jobs should be possible by asking for less than the 4 GB
    he requested per job. The jobs ran single threaded.

CMU

    Paul has successfully built the version of sim-recon called out on the
    conditions page. He will take a look at running the binaries.

Richard

    After quick look at the conditions page, richard thinks that it
    conatins all of the information he needes to configure gridmake to
    build the binaries on the remote grid nodes.

Start Date

    We agreed to try and start production by next Wednesday, November 28.
    We can use the Offline software Meeting that day for any last minute
    adjustments.

    Retrieved from
 
"https://halldweb1.jlab.org/wiki/index.php/GlueX_Data_Challenge_Meeting,_November_19,_2012"

References

   20. 
https://halldweb1.jlab.org/wiki/index.php/GlueX_Data_Challenge_Meeting,_November_5,_2012#Minutes.21minutes
   21. 
https://halldweb1.jlab.org/wiki/index.php/Status_of_the_tagged_release_for_DC_1,_11/5/2012
   22. 
https://halldweb1.jlab.org/data_challenge/01/conditions/data_challenge_1.html

-- 
Mark M. Ito
Jefferson Lab
marki at jlab.org
(757)269-5295