Present: Toby Burnett, Xin Chen, Marco Frailis, Riccardo Giannitrapani, Heather Kelly, Michael Kuss, Leon Rochester, Alex Schlessinger, Tracy Usher, Karl Young
mcRoot file: (Riccardo) Riccardo
provided a proposal to limit the size of the mcRoot file:
http://www.fisica.uniud.it/~riccardo/research/glast/mctree.html
We would maintain the capability of storing data in "full tree
mode" or "minimal tree mode".
In full tree mode we store:
m_mcParticle
m_originMcParticle
m_mcParticleId
m_originMcParticleId
In minimal tree mode we store:
m_mcParticleId
m_originMcParticleId
and m_mcParticle and m_originMcParticle are null
Tracy felt this met his needs. Riccardo will update the TDS
classes this week. Heather will then update the ROOT classes.
Test Release: (Alex)
TKR: (Toby, Leon) Toby noted that the TkrFindAlg currently dominates the CPU time of Gleam. Bill updated one of his classes to make it more efficient. Since Bill had troubles checking in the code, Toby obtained the code and checked it in. The changes seems to work, but needs to be validated by Bill.
Random Number Generator: (Karl) We discussed the needs for the random number generator. Karl has started to look at the Random Number Generator provided by Gaudi. Leon suggested that each package could set its own seed and store its final seed - to be used for the next event. There seems to be no obvious reason why each package could not start with the same seed, though both Leon and Karl will continue to consider the issue. Toby pointed out that we must store the state of the generator not just the seed - which should just be 3 doubles. Karl will continue looking at the Gaudi Random Number Generator to see how this can be done.
FRED: (Riccardo) Riccardo unleashed
the FRED home page:
http://www.fisica.uniud.it/~riccardo/research/fred/
Riccardo encourages people to go ahead and download FRED and try it
out.
Comings and goings: Toby is at Udine this week. Richard and Heather are attending the CAL meeting at NRL Thursday and Friday this week.
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J. Bogart Last Modified: 01-Jun-2010 15:47:44 -0700