Present: Ursula Berthon, Joanne Bogart, Toby Burnett, Xin Chen, Berrie Giebels, Navid Golpayegani, Heather Kelly , Michael Kuss, Alex Schlessinger, Leon Rochester, Tracy Usher
RootIO and ROOT: (Ursula, Heather) Ursula has seen two additional problems. The first has been fixed by resetting the objectnumber to zero for each event. Work on the second is in progress. It appears to be in ROOT code rather than our stuff, but that needs to be confirmed. It occurs when disk space is exhausted. In this case ROOT starts keeping everything in-memory, and quickly grabs horrendous amounts, growing from about 14 Mbtyes to over 400! [Richard wondered why disk space ever is exhausted, since we have a huge pool to write to. Likely Ursula's job is not using it.] Ursula believes she is close to understanding this problem completely, but will not be able to resume work on it until mid-July. Meanwhile, Heather can institute a work-around if necessary so that we can write and prune the required 20 million background events.
Flight software integration (EBFWriter, Filter code): (Navid) EBFWriter is working, except that EBFdump cannot read what EBFWriter writes (see next paragraph). The Filter can successfully read input from a file, as written by EBFwriter, but not from the TDS.
Richard (and others among us) worry that the Online data format and Flight data format may have diverged somewhat. Heather suggests a VRVS meeting of all concerned parties (Ric, JJ, Navid, Heather, Joanne,..) would expedite the process of resyncing.
EM CAL : Berrie believes it will arrive at SLAC around July 24, somewhat later than previously rumored. This way (since SLAC can only keep it for a couple months) the tracker will also be present. Richard asked about plans for software support (ability to decode the CAL data). Joanne hardly has any. Heather believes the data format is reasonably well-described in existing documents, with some gaps.
Minitower data: (Richard) Has anyone been looking at this recently? Xin has and expects to report on it in a week or so.
Automated builds by configuration: (Alex) He is close to being able to do release builds and so forth on Windows as well as Linux. By the end of the week he hopes to have automated builds and system tests running on the Windows box in his office. In fact the enhanced system is more general than that: he can invoke builds by CMTCONFIG value, so there can be, for example, a test build, or one for gcc 3.2.
Speaking of 3.2, using patches (to Gaudi) supplied by Tracy, Alex has successfully built Gaudi with gcc 3.2. He is on his way to building all the external libraries with it.
Geometry news - CAL: (Joanne) Roughly half the changes requested at the CAL geometry review have been instituted. The remainder, probably another 2-3 days of work, await determination of a few more numbers, materials, and details of bottom frame configuration. CAL folk should try it out what's there now (requires latest tag, v2r10 = HEAD, of xmlUtil and tag v1r11p1 or later of xmlGeoDbs) and let her know of any surprises.
Geomtry news - TKR: (Leon) Corrections for vertical dimensions within tracker have been committed [not yet tagged. Use xmlGeoDbs HEAD, xmlUtil v2r10]. Still to come: more accurate modelling of passive material between towers. It is important to get this right since it affects multiple scattering, which in turn affects estimates of number of event (hence time) it takes to do alignment.
Geometry news - ACD: (Heather) Finally, after months of nagging, new information may be forthcoming. Last Friday Heather and Steve Ritz met with Ken Segal, who promised numbers within a couple weeks. The immediate stumbling block is that the program used for the model can't handle the complete description. The plan is to reduce the description to what's most necessary (tiles, ribbons, supports,...) or to break it into pieces.
New GLAST outpost: Heather et. al. will be relocating to San Diego.
Action Items 
in minutes from 11 Feb is to make Tracy's
CMTification of G4 build work on Linux as well as Windows. (05/06/03)
previous
|
minutes index
|
next
 |
J. Bogart Last Modified: 01-Jun-2010 15:46:13 -0700
