Difference between revisions of "GlueX Offline Meeting, February 23, 2011"
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# Mark reminded us of the lastest tagged release of the simulation/reconstruction software: [https://mailman.jlab.org/pipermail/halld-offline/2011-February/000500.html sim-recon-2011-02-02]. | # Mark reminded us of the lastest tagged release of the simulation/reconstruction software: [https://mailman.jlab.org/pipermail/halld-offline/2011-February/000500.html sim-recon-2011-02-02]. | ||
# Mark called attention to the [https://mailman.jlab.org/pipermail/halld-offline/2011-February/000507.html Computing Model Spreadsheet] that was circulated on the email list. Modifications continue based on feedback from the Collaboration. | # Mark called attention to the [https://mailman.jlab.org/pipermail/halld-offline/2011-February/000507.html Computing Model Spreadsheet] that was circulated on the email list. Modifications continue based on feedback from the Collaboration. | ||
− | # Elliott announced that Andrew Blackburn will start work again on the ded event display next week. There was a discussion of how we decide on event display technology and whether we had enough manpower to pursue more than one avenue and, related to that, why is the current viewer (hdview2) not good enough. Andrew has been using the bCNU framework developed by Dave Heddle of CNU. Dmitry has been planning to look at using the EVE package of ROOT, but has not had much time to look at it. hdview2 also uses a subset of ROOT. Dave told us that hdview2 was not designed as a platform for long-term development. Elliott told us that the effort from Andrew and Dave H. is, if not free, of very low cost to the Collaboration and the framework will in any case be used in Hall B. EVE can be easily tied to the HDDS geometry specification (a ROOT version of the HDDS geometry already "exists") and would have built-in 3D capabilities as well as 2D projections. Elton in particular questioned whether we can sustain multiple efforts, the EVE route being the most speculative at this point. David thought that we should convene a meeting sooner than the next offline meeting to discuss the issues, especially since Andrew is slated to start next week. Clearly more discussion is needed; we did not come to any decisions. | + | # Elliott announced that Andrew Blackburn will start work again on the ded event display next week. The next goal: have a simple way to connect a running JANA process to the event display, with two-way communication, for example to try different algorithms tracking on a single selected event within an event stream. |
+ | #* There was a discussion of how we decide on event display technology and whether we had enough manpower to pursue more than one avenue and, related to that, why is the current viewer (hdview2) not good enough. Andrew has been using the bCNU framework developed by Dave Heddle of CNU. Dmitry has been planning to look at using the EVE package of ROOT, but has not had much time to look at it. hdview2 also uses a subset of ROOT. Dave told us that hdview2 was not designed as a platform for long-term development. Elliott told us that the effort from Andrew and Dave H. is, if not free, of very low cost to the Collaboration and the framework will in any case be used in Hall B. EVE can be easily tied to the HDDS geometry specification (a ROOT version of the HDDS geometry already "exists") and would have built-in 3D capabilities as well as 2D projections. Elton in particular questioned whether we can sustain multiple efforts, the EVE route being the most speculative at this point. David thought that we should convene a meeting sooner than the next offline meeting to discuss the issues, especially since Andrew is slated to start next week. Clearly more discussion is needed; we did not come to any decisions. | ||
==Review of minutes from the last meeting== | ==Review of minutes from the last meeting== |
Revision as of 16:10, 24 February 2011
GlueX Offline Software Meeting
Wednesday, February 23, 2011
1:30 pm EST
JLab: CEBAF Center F326/7
Contents
Agenda
- Announcements
- New sim-recon release: sim-recon-2011-02-02: Mark
- Computing Model Spreadsheet: Mark
- Review of minutes from the last meeting: all
- Configuring JANA: David
- Calibration Database Update: Dmitry
- Action Item Review: all
- To view these links, login first. Anonymous login is available.
- Review of recent repository activity: all
Communication Information
Telephone
To connect by telephone:
- dial:
- US and Canada: (866)740-1260 (toll free)
- International: (303)248-0285 (toll call) or look up toll-free number at http://www.readytalk.com/intl
- enter access code followed by the # sign: 3421244#
Video Conferencing
- ESNet: 8542553
- EVO:
- Meeting URL: http://evo.caltech.edu/evoNext/koala.jnlp?meeting=eueneevIv9aiavavIu
- Phone Bridge ID: 8 6750
Slides
Talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2011-1Q
on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2011-1Q/ . You have to be a member of the "halld" Unix group to do this.
Minutes
Present:
- IU: Jake Bennett, Matt Shepherd, Kei Moriya
- JLab: Vardan Gyurjyan, Mark Ito (chair), David Lawrence, Dmitry Romanov, Elton Smith, Sascha Somov, Simon Taylor, Elliott Wolin, Beni Zihlmann
Announcements
- Mark reminded us of the lastest tagged release of the simulation/reconstruction software: sim-recon-2011-02-02.
- Mark called attention to the Computing Model Spreadsheet that was circulated on the email list. Modifications continue based on feedback from the Collaboration.
- Elliott announced that Andrew Blackburn will start work again on the ded event display next week. The next goal: have a simple way to connect a running JANA process to the event display, with two-way communication, for example to try different algorithms tracking on a single selected event within an event stream.
- There was a discussion of how we decide on event display technology and whether we had enough manpower to pursue more than one avenue and, related to that, why is the current viewer (hdview2) not good enough. Andrew has been using the bCNU framework developed by Dave Heddle of CNU. Dmitry has been planning to look at using the EVE package of ROOT, but has not had much time to look at it. hdview2 also uses a subset of ROOT. Dave told us that hdview2 was not designed as a platform for long-term development. Elliott told us that the effort from Andrew and Dave H. is, if not free, of very low cost to the Collaboration and the framework will in any case be used in Hall B. EVE can be easily tied to the HDDS geometry specification (a ROOT version of the HDDS geometry already "exists") and would have built-in 3D capabilities as well as 2D projections. Elton in particular questioned whether we can sustain multiple efforts, the EVE route being the most speculative at this point. David thought that we should convene a meeting sooner than the next offline meeting to discuss the issues, especially since Andrew is slated to start next week. Clearly more discussion is needed; we did not come to any decisions.
Review of minutes from the last meeting
- The new release of JANA, 0.6.3, has arrived. Note that the build steps have changed slightly from previous versions.
- David is doing work to characterize the "split-off problem". He intends to feed back what he finds to the folks working on BCAL reconstruction, among others.
- Beni reported that Richard Jones has checked in some changes to HDDM to eliminate compiler warnings when building with gcc 4.4.5.
- There was a meeting last week to discuss the way timing is handled in the reconstruction. One take-away that Matt mentioned was the given the way times are generated in the Monte Carlo, where t=0 is defined as the time where the photon beam crosses the center of the target, using the raw times is equivalent to perfect resolution and a perfect identification of the beam RF bucket. We can therefore just go with the time offset in the raw times as if we are in the era of identifying the RF bucket since the RF-bucket timing should be very good compared to any measured time in the detector.
- Kei will present an update on his PID studies at the next Physics Working Group meeting.
goal for event display: have a simple way to connect running jana process to event display, back and forth, different algorithms for example
event display, Elton, don't have manpower to work on more than one thing at a time what is david's situation? sasha, he will go on with hall b stuff he will maintain framework
student will leave someday
perhaps mephi phd student might be interested event display for selex experiment, eve, try to use root/display what is difficulty with jana
elton before we go down any of these paths we should have a plan limitation? Matt, Elliott not well integrated hdview2 problems? always expected that someone would come along and do a more sophisticated event display
ded is not 3d
discussion of event display