Difference between revisions of "GlueX Offline Meeting, July 25, 2012"
From GlueXWiki
(copy of last time) |
m (Text replacement - "www/halldweb1/" to "www/halldweb/") |
||
(5 intermediate revisions by the same user not shown) | |||
Line 7: | Line 7: | ||
# Announcements | # Announcements | ||
− | # Review of [[GlueX Offline Meeting, | + | ## Data Challenge Meetings |
− | + | ## [[Private:Scientific Computing Survey, 2012|Scientific Computing Survey]] | |
− | + | ## No more software sessions in Tracking Meetings (by default) | |
− | + | # Review of [[GlueX Offline Meeting, July 11, 2012#Minutes|minutes from the last meeting]]: all | |
− | + | ||
# Reconstruction sub-group reports | # Reconstruction sub-group reports | ||
## Calorimeters | ## Calorimeters | ||
Line 32: | Line 31: | ||
==Slides== | ==Slides== | ||
− | Talks can be deposited in the directory <code>/group/halld/www/ | + | Talks can be deposited in the directory <code>/group/halld/www/halldweb/html/talks/2012-3Q</code> on the JLab CUE. This directory is accessible from the web at https://halldweb.jlab.org/talks/2012-3Q/ . |
+ | |||
+ | =Minutes= | ||
+ | |||
+ | Present: | ||
+ | * '''CMU''': Will Levine, Curtis Meyer | ||
+ | * '''IU''': Ryan Mitchell, Matt Shepherd | ||
+ | * '''JLab''': Mark Ito (chair), Manuel Lara, David Lawrence, Paul Mattione, Elton Smith, Simon Taylor, Elliott Wolin, Beni Zihlmann | ||
+ | |||
+ | ==Announcements== | ||
+ | |||
+ | * Data Challenge Meetings have started on alternate Mondays at 1:30 pm. | ||
+ | * Mark urged us to participate in the [[Private:Scientific Computing Survey, 2012|Scientific Computing Survey]]. | ||
+ | * There will be no more (default) software sessions as part of the bi-weekly Tracking Meeting. | ||
+ | * David and Elliott have started work on translation tables. If you have thoughts send them along. A proposed format was circulated on the Offline email list. | ||
+ | |||
+ | ==Review of Minutes from Previous Meetings== | ||
+ | |||
+ | ===Offline Meeting=== | ||
+ | |||
+ | We reviewed the [[GlueX Offline Meeting, July 11, 2012#Minutes|minutes from the July 11th meeting]]. | ||
+ | |||
+ | * Paul reported that he thinks all work has been done for now on the REST format. We can start using it in production. | ||
+ | * Simon made the promised changes in the default track hypotheses generated: | ||
+ | ** Positive tracks: pi, K, p | ||
+ | ** Negative tracks: pi, K | ||
+ | |||
+ | ===Data Challenge Meeting=== | ||
+ | |||
+ | We looked at the [[GlueX Data Challenge Meeting, July 16, 2012#Minutes|minutes of the July 16th meeting]] without significant comment. | ||
+ | |||
+ | ==Reconstruction Sub-Group Reports== | ||
+ | |||
+ | ===Calorimeters=== | ||
+ | |||
+ | David has been working on putting more realism in the BCAL smearing. | ||
+ | * Full electronic pulse shape are generated, with dark hits. | ||
+ | * Changes have been made to hdgeant and mcsmear. They are currently disabled by pre-processor directives. | ||
+ | * The unsmeared file is much larger; mcsmear is four times slower for single photon events | ||
+ | * hdgeant is about three times slower than mcsmear previously. | ||
+ | * David will give a presentation on this work at a future meeting. | ||
+ | |||
+ | ===Tracking=== | ||
+ | |||
+ | Simon gave a report: | ||
+ | * One final, additional swim over reference trajectory eliminated. | ||
+ | * The straight line fitting for alignment of the chambers is working. | ||
+ | ** Working with an algorithm to adjust parameters of each wire plane. | ||
+ | ** Allows for rotation and shift of entire plane. | ||
+ | ** Some convergence difficulties being worked on presently. | ||
+ | * Looking at omega events to compare perfomance at 1200 A vs. 1500 A in the solenoid. | ||
+ | ** Looks like there is a drop in performance due to reduction in background. | ||
+ | ** Started work on lambda to p pi- events, no conclusions yet. | ||
+ | ** In comparison of 1200/1500 A, see a 20% loss in Δp/p, but missing mass only worse by a few percent. | ||
+ | |||
+ | ===PID=== | ||
+ | |||
+ | Paul gave a report: | ||
+ | * He is in the middle of writing a kinematic fitter. Will incorporate 4-momentum conservation, time constraints, RF timing, vertex constraints | ||
+ | * Using 7 variables in the covariance matrix: px, py, pz, t, x, y, and z. | ||
+ | * Hopes to have results in two weeks. | ||
+ | |||
+ | ==Ubuntu== | ||
+ | |||
+ | Beni reports that he is having problems building a working copy of the GlueX software on an Ubuntu 64-bit system. | ||
+ | |||
+ | ==Review of Action Items and Repository Activity== | ||
+ | |||
+ | * Dmitry Romanov is scheduled to arrive back at JLab in early August. | ||
+ | * We noted that Richard checked in a solution the the problem initially reported by David where hddm-xml was running out of buffer space. |
Latest revision as of 11:11, 31 March 2015
GlueX Offline Software Meeting
Wednesday, July 25, 2012
1:30 pm EDT
JLab: CEBAF Center, F326/327
Contents
Agenda
- Announcements
- Data Challenge Meetings
- Scientific Computing Survey
- No more software sessions in Tracking Meetings (by default)
- Review of minutes from the last meeting: all
- Reconstruction sub-group reports
- Calorimeters
- Tracking
- PID
- Action Item Review
- Review of recent repository activity: all
Communication Information
Video Conferencing
- ESNet: 8542553
- EVO:
- Meeting URL: http://evo.caltech.edu/evoNext/koala.jnlp?meeting=e9eIeivev8aMaMIvaaI9
- Phone Bridge ID: 13 0949
Slides
Talks can be deposited in the directory /group/halld/www/halldweb/html/talks/2012-3Q
on the JLab CUE. This directory is accessible from the web at https://halldweb.jlab.org/talks/2012-3Q/ .
Minutes
Present:
- CMU: Will Levine, Curtis Meyer
- IU: Ryan Mitchell, Matt Shepherd
- JLab: Mark Ito (chair), Manuel Lara, David Lawrence, Paul Mattione, Elton Smith, Simon Taylor, Elliott Wolin, Beni Zihlmann
Announcements
- Data Challenge Meetings have started on alternate Mondays at 1:30 pm.
- Mark urged us to participate in the Scientific Computing Survey.
- There will be no more (default) software sessions as part of the bi-weekly Tracking Meeting.
- David and Elliott have started work on translation tables. If you have thoughts send them along. A proposed format was circulated on the Offline email list.
Review of Minutes from Previous Meetings
Offline Meeting
We reviewed the minutes from the July 11th meeting.
- Paul reported that he thinks all work has been done for now on the REST format. We can start using it in production.
- Simon made the promised changes in the default track hypotheses generated:
- Positive tracks: pi, K, p
- Negative tracks: pi, K
Data Challenge Meeting
We looked at the minutes of the July 16th meeting without significant comment.
Reconstruction Sub-Group Reports
Calorimeters
David has been working on putting more realism in the BCAL smearing.
- Full electronic pulse shape are generated, with dark hits.
- Changes have been made to hdgeant and mcsmear. They are currently disabled by pre-processor directives.
- The unsmeared file is much larger; mcsmear is four times slower for single photon events
- hdgeant is about three times slower than mcsmear previously.
- David will give a presentation on this work at a future meeting.
Tracking
Simon gave a report:
- One final, additional swim over reference trajectory eliminated.
- The straight line fitting for alignment of the chambers is working.
- Working with an algorithm to adjust parameters of each wire plane.
- Allows for rotation and shift of entire plane.
- Some convergence difficulties being worked on presently.
- Looking at omega events to compare perfomance at 1200 A vs. 1500 A in the solenoid.
- Looks like there is a drop in performance due to reduction in background.
- Started work on lambda to p pi- events, no conclusions yet.
- In comparison of 1200/1500 A, see a 20% loss in Δp/p, but missing mass only worse by a few percent.
PID
Paul gave a report:
- He is in the middle of writing a kinematic fitter. Will incorporate 4-momentum conservation, time constraints, RF timing, vertex constraints
- Using 7 variables in the covariance matrix: px, py, pz, t, x, y, and z.
- Hopes to have results in two weeks.
Ubuntu
Beni reports that he is having problems building a working copy of the GlueX software on an Ubuntu 64-bit system.
Review of Action Items and Repository Activity
- Dmitry Romanov is scheduled to arrive back at JLab in early August.
- We noted that Richard checked in a solution the the problem initially reported by David where hddm-xml was running out of buffer space.