GlueX Data Challenge Meeting, August 27, 2012

Meeting Time and Place

The meeting will be on Monday August 27, 2012 at 1:30pm EDT. For those people at Jefferson Lab, the meeting will be in room F326.

Meeting Connections

To connect from the outside:

1.) ESNET:

   Call ESNET Number 8542553 (this is the preferred connection method).

2.) Phone: (should not be needed)

  +1-866-740-1260 : US and Canada
  +1-303-248-0285 : International
    then use participant code: 3421244# (the # is needed when using the phone)
  or www.readytalk.com
   then type access code 3421244 into "join a meeting" (you need java plugin)

3.) EVO:

   A conference has been booked under "GlueX" from 1:00pm until 3:30pm (EST).

• Direct meeting link
• To phone into an EVO meeting, from the U.S. call (626) 395-2112 and then enter the EVO meeting code, 13 9993. Instructions for the Phone Bridge to EVO.
• Skype Bridge to EVO

Agenda

• Minutes from last time
• JLab Farm mini-challenge:
  • status of the lastest mini-challenge
  • suggested memory problem fix from Paul
  • REST format tested by Paul
• CernVM: Mark

Minutes

Present:

• CMU: Curtis Meyer
• EVO: Matt Shepherd
• FSU: Nathan Sparks
• JLab: Mark Ito (chair), Elton Smith, Simon Taylor
• UConn: Richard, [student?]

JLab Farm Mini Data Challenge

Mark gave a snapshot of the current mini challenge. See his wiki page for details.

• The current set of jobs has been able to saturate the Hall D share of the farm, which is only about 4% at this point.
• Most of the analysis jobs (HD_ROOT) crashed due to the self-declared memory limit of 2 GB. Paul Mattione has checked in an option to cut-off reconstruction of high multiplicity events. This may help.
• One of the next steps is to produce output data in REST format.
• grid
• jake
• SRM

dana rest 5 million core hours 800 TB

look into tape storage