Core Minutes 6/21/2005  

Present:    Joanne Bogart, Anders Borgland, Toby Burnett, Seth Digel, Richard Dubois, Zachary Fewtrell, Dan Flath, Berrie Giebels, Tom Glanzman, Navid Golpayegani, Tony Johnson, Heather Kelly, Michael Kuss, Julie McEnery, Chuck Patterson, Igor Pavlin, James Peachey, Dirk Petry, Leon Rochester, Tom Stephens

• I & T: (Anders) [updated Tuesday PM] The 6-tower test run was taken Tuesday. Testing is currently delayed because of several tracker problems. CA: calibrations will most probably now only happen next week.
• EM tags: (Heather) Latest tag, released yesterday, is v5r0608p1. New content as compared to p0  is a new tag  of CalXtalResponse from Zach. Systems tests for this tag have several failed plots; Anders has looked at them and believes there are no serious problems. Heather will add some words to this effect to the CCB Confluence page.

  This tag still has the shift in simulated event time, even though Toby has tagged a fix. Heather is hesitant to pick it up unless someone can assure her she won't be picking up other, possibly unwanted stuff along with it. CRflux unit test is failing. Toby believes that problems, if any, should not affect surface muons, hence would have no impact on EM. He recommends forging ahead.

  Anders found a problem with some hot/dead strips calibration files, now fixed.

• Data handling: (Tony)
  • New CVS repository has been set up for Java projects, which tend to have a different organization and evolution than C/C++. CVSspam will email nicely-formatted html message upon commit. In 6 months or so, may move to Subversion.
  • Pipeline Dan had a problem when he last tried to use Navid's archiver. [See Archiver item below.]
  • Confluence changes Tony has revamped SLAC Confluence somewhat. In the process some people appear to have lost access to some pages; Tony suspects he knows what the problem is and how to fix it.
  • Schedule Master timeline in progress.
• Archiver (Navid) New version is ready to go, hence it probably is not worth trying to debug a problem with the old one. The new version uses the batch system rather than directing all operations to glast03.
• Windows build: (Richard, Navid) Windows builds are still limping along on a single inadequate box because SCS has not yet set up our new machines.

  There is a problem doing builds on our CITRIX server: since it is running Windows 2000 rather than XP there is a 2000-character limit on commands, which we have surpassed. Navid is implementing a simplified install area. To start with, he will handle just libraries, though he would like to do something similar for executables and for P-files. Implementation will just be unix or Windows shell commands to do copies after the objects are built.

• End run evades tags: Recently Bill requested a million all-γ events using HEADs of 8 packages along with tagged versions of the rest. After some minor pilot error, Richard was able to produce them, however many are unhappy with the precedent. There were extenuating circumstances (Tracy, whose packages these were, had almost no internet access; the events are specially for Bill, not intended for public consumption); still, Bill did present results based on this run at the Analysis Group meeting yesterday. Toby suggested we now tag the packages we believe were used (perhaps with non-standard tags if standard ones would somehow interfere with other work) and re-run.
• Save trees or reproduce? Julie has suggested that, rather than save all ROOT trees from all runs, we might make use of the reproducibility of events from the incoming particles for the times someone wants the full tree. (Michael) there was a problem with reproducibility in v6r8, but it now seems to be OK. (Toby) An all-γ run is relatively simple. Even if we couldn't reproduce it exactly, it wouldn't matter since it's easy to reproduce it in a statistical sense. However that can't be said of background runs, which have a much larger parameter space. Here we need per-event reproducibility. We ought to incorporate something into System Tests which checks for reproducibility, given input particles (and random seed) information. Michael will think about how to do this.
• AOB: (Toby) Software builder SCons is getting a lot of good press. (Richard) We may have passed the point of no return with CMT.

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J. Bogart, Last Modified: 01-Jun-2010 15:47:53 -0700