Core Minutes 2/13/2007
Present: Joanne Bogart, Anders Borgland, Toby Burnett, David Chamont,
Jim Chiang, Richard Dubois,
Dan Flath, Warren Focke,
Berrie Giebels, Tom Glanzman, Navid Golpayegani,
Michael Kuss, Chuck Patterson, Igor Pavlin,
Leon Rochester, Tracy Usher, Larry Wai
- Release Manager: (Richard for
Navid, who was having audio problems)
-
Windows builds haven't been restarted because Navid
has not been able to log on to the Windows batch servers.
It should be possible to get the going again today.
[In fact, as of 10:40 AM PST, it is back.]
- RHEL4 builds are increasingly in demand. The hold-up has
been external libraries, Gaudi especially. Navid finally managed to
build Gaudi, but it was a painful process. Gaudi pulled in
POOL and SEAL, which in turn pulled in ROOT, specifically ROOT 5.08,
even though our use of Gaudi requires none of that. Heather,
expected back on March 9, will contact the Gaudi guys in the hope
that we can find a way to configure the build to just include
what we actually need.
- ROOT upgrade: (Richard for David Chamont,
another inaudible participant) David has been investigating the
warning coming from AcdRecon. It is more properly
an error, due to a bug in ROOT. He has a patch. The proposal on the
floor is to build, use and distribute the patched version.
- Saving MC trajectories; memory use: (Tracy)
The work he began some time ago to save the information needed to
keep track of irreducible backgrounds is essentially done. It works
on his laptop, but has not been checked into CVS or tested on Linux.
While working on it he discovered that we are effectively
caching all the ROOT file output, causing jobs to use a very large
amount of memory in static arrays. He has implemented a scheme which
avoids this by cleaning up periodically, but this involves changes
to RootIo, normally Heather's domain. He
hesitates to release the new stuff, involving mods to many packages,
without her very thorough testing regimen. (Richard) David can
help with this. So Tracy will update HEADs with the new stuff and
David will try it out on Linux. Heather will be kept informed of
all developments.
- Beamtest meeting Feb. 9: (Richard)
There was some concern with discrepancies
between data and simulation. MC doesn't have enough tracker hits.
(Tracy) He tried using the native multiple scattering package
to see if this would help. The result was larger MC files (having
to do with a smaller minimum step size), but the
number of clusters was about the same.
- Interleave:
(Richard) Tracy has been asked to verify it's doing the right
thing and to figure out how we can extend the scheme to
use raw data files.
- Schedule:(Richard) 55 day run is
(again) expected to occur at the end of this month, now that
the End-to-end test has been pushed to March.
- GlastRelease status: (Toby)
He is loathe to make a release with Windows RM down.
New release will include the GCRCalib
package and improvements to flux.
[Update: now that Windows RM is up, Toby has made the new tag,
v9r24, and builds are on the way.]
- ScienceTools: (Jim) Could move
microquasars and the new sun and moon to HEAD.
J. Bogart, Last Modified:
01-Jun-2010 15:47:48 -0700
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