Overlay (Leon) Over vacation explored effects of ACD tile cut, energy cut on efficiency of reconstructing overlay events. It appears that original poor performance was due to lack of (low) energy cut on ACD tiles. After experimentation, settled on a threshold of 30 kV. There is a new tag or tags with this improvement. (Tracy) [inaudible] (Leon) There are two ways to make a cut: # of channels above threshold or cut on total energy. (Tracy) [could hear a little better but not well enough to follow the thread]
(Heather) can easily add any new Overlay code to the branch off of v15r50 made for that purpose. There is a branch off v15r51 for LPM. The two might perhaps be merged. Should we be thinking about merging Overlay into main branch? (Tracy) There are some changes to TDS classes local to Overlay and not completely supported elsewhere. This should be discussed before we consider merging Overlay into main branch.
Additional active areas in GR include LPM effect and finishing off upgrade for new LDF to properly analyze error bits.
Xerces (Heather) John Vernaleo discovered that the version of Xerces we're using, 2.7.0, has a bug on Intel Macs (bytes not in expected order) which has been fixed in newer versions. John has merged the fix into our version for FSSC use. Do we want to use this patch or upgrade? (Joanne) It would depend on which version of Xerces has the fix. 2.8 is or should be entirely compatible with our stuff, but there is now a 3.0 which would require some changes, perhaps quite a few, to our code. In a recent email John said that he believes only 3.x has the fix we need, so I vote for the patch.
ScienceTools: No news since the holiday break.
FSSC Report: Quiet here as well.
Documentation: (Chuck) sends this summary:
Just a reminder that the workbook has been restructured for the benefit of new users who wish only to perform science analysis. The Instrument Analysis button is the gateway to the developers section of the workbook, as well as to legacy documentation.Beyond that, I'm currently cleaning out my mail box and reviewing and prioritizing those messages flagged for follow up.
SCons RM (Navid) writes:
SCons RM now builds for rhel3, rhel4 (32bit and 64bit), rhel5, and tiger (intel). The 64bit problems with the unit test have been discovered by John Vernaleo and the package owners were contacted by him. They will hopefully soon make it into a release if they haven't already. Mac builds are now automated and after some initial problems they seem to be running now. Bugs, such as missing external libraries, are still there but are getting fixed as they are discovered.SCons now creates installer files for end user releases. These releases can be used to run the application and build against but can't be used for rebuilding the original application. External libraries still need to be handled by this new installer and a developer release for the installer still need to be created.
GR and Externals (Emmanuel) has an installation of obf
organized as Tracy has been doing it which can be used to build with SCons.
It can be found at
/afs/slac/g/glast/ground/GLAST_EXT/redhat4-i686-32bit/obf/B1-1-3-tr1
. (Joanne) has been talking to Tracy, Navid and JJ about what other
arrangements are possible and convenient. To be discussed further at the
Wednesday SCons meeting.
(Emmanuel) got around the problem he was having with GoGui and was able to use it to build GlastRelease. It turns out it's necessary to invoke ssh with the the -Y option to get X applications to run properly. (Joanne) There was also a second problem. By default GoGui expects the string scons to resolve to a usable SCons command. If this is not the case and the user doesn't override it by means of the Options/utility options dialog, GoGui will crash when it tries to run SCons. There seems to be no useful default value for the SCons command, so the newest GoGui tag, 0.9.2, no longer has one; the user must set it before invoking SCons.
He ran into a problem with Fred. It's unable to find the proper version of libFOX.
Command-line tagger (Heather) was going to try it out but couldn't get to it at the (ftp) location specified in the documentation. (Joanne) will look into it. [Turns out u05, which has the ftp space Navid and I have been using for various SCons-related executables, is one of the disks which is inaccessible because of the outage to upgrade cooling in Building 50.]
GoGui et. al. (Joanne) Not much got done over the break. Shortly before the decision was made to go with Windows 2008 (skipping over 2005) for the SCons implementation. I installed the free Express version but have not had a chance to use it yet. (Tracy) The free version is missing support for languages other than C++ (which we don't need) and some profiling tools, so should be adequate for most development.
AOB: (Tom) would like to know if there is a way to sign up for just a subset of Nagios messages, e.g. concerning a particular disk or server. If not, could this functionality be added? (Emmanuel) It already is possible to do this. Interested people should email Emmanuel or describe what they want in a JIRA. (Tom) will pass this on to Warren.
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