GlueX Data Challenge Meeting, October 22, 2012

GlueX Data Challenge Meeting
Monday, October 8, 2012
1:30 pm, EDT
JLab: CEBAF Center, F326/327

Agenda

• Announcements
  1. tagged release for DC-1
  2. Status and role of raw data tape simulation
• Minutes from last time
• Setting conditions for DC-1
• JLab Farm Mini-Challenge Status
• Grid status
• CMU status

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Minutes

Present:

• CMU: Paul Mattione, Curtis Meyer
• JLab: Eugene Chudakov, Mark Ito (chair), David Lawrence, Elliott Wolin
• UConn: Richard Jones

Announcements

• Mark has [??? tagged a release of sim-recon] for use in the first data challenge. The plan is to also use the previously tagged HDDS-1.3.
• Elliott announced that he and David are working on raw-data-from-simulation. Many pieces are there, but it does not look close enougfh to include in this next data challenge.

Minutes from last time

We reviewed the minutes from the ??? meeting. We noted that Curtis wrote to IT division requesting a 50% share of the farm, and the request has been approved, at least in principle. Right now, about a third of the processing power of the farm resided in new nodes running CentOS6 and are lightly used and so we effectively have a good chunk of what we requested.

Setting conditions for DC-1

Mark proposed making a directory in the subersion repository to document conditions for the software. It would have a text doucument calling out the versions to be used and the actual configuration files to be read by the various programs. he wil progpose a location.

Richard will construct a gridmake file that will detrmine the configuration to bre run on the grid. Hr reuqsted a simple wiki page with the relefvant informatyion.

We discussed some details and came to some decisions

• We will simulate events from the ochernt peak between 8.4 and 9.9 GeV only.
• We will not apply any level 1 trigger algorithm to the "raw data" but David will modify REST format to encode the result of the level 1. Tis must be done during the reconstruction srtage since the result depends on the raw hits.
• Paul will work on a plug-in to make simple monitoring histograms during reconstruction so we have a handle on the results without fuether analysis. Makr had planned to use the output of the phystree plug-in, but that is likely more data than we need for this purpose.

Site status

• JLab Mark has started a mini-challenge on the Jlab farm using the tagged ve3rsion and the new farm nodes.
• CMU Pual has built the new tagged version. He will run some jobs with it.
• Grod richard will wait for the final decision on versions and then create the corresponding gridmake package.