Difference between revisions of "HDGeant4 Meeting, September 10, 2019"

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# [https://github.com/JeffersonLab/HDGeant4/pulls Pull Requests on GitHub]
 
# [https://github.com/JeffersonLab/HDGeant4/pulls Pull Requests on GitHub]
 
# Action Item Review
 
# Action Item Review
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 +
== Minutes ==
 +
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Present:
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* ''' CMU: ''' Naomi Jarvis
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* ''' FSU: ''' Sean Dobbs
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* ''' JLab: ''' Mark Ito (chair), Simon Taylor, Beni Zihlmann
 +
* ''' UConn: ''' Richard Jones
 +
 +
There is a [https://bluejeans.com/s/xoKyc/ recording of this meeting] on the BlueJeans site. Use your JLab credentials to get access.
 +
 +
=== Review of minutes from the last meeting ===
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We reviewed [[HDGeant4_Meeting, July 2, 2019#Minutes|the minutes from the meeting on July 2]]. See the entry for Issue #109 below for the discussion.
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=== HDGeant4 and the Time-of-Flight Upgrade ===
 +
 +
Sean has noticed that there are a few geometry parameters for the TOF in HDGeant4 that have hard-wired values. These should come from the HDDS files served by the CCDB. Richard agreed to have a look.
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[Added in press: Sean created [https://github.com/JeffersonLab/HDGeant4/issues/123 Issue #123] after (during?) the meeting].
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 +
=== DIRC simulations ===
 +
 +
See the entry for Issue #121 below for discussion on this topic.
 +
 +
=== Tracking Efficiency Study ===
 +
 +
We reviewed [https://drive.google.com/open?id=1-lUkPE9lnPLjUHQYWR_yw6PZ75cBUxIZ the plots that Naomi sent to Mark].
 +
These have been shown at a previous tracking meeting. See [[Media:NSJ_CDC_eff_simulation_21Aug2019.pdf|Naomi's slides] for the details. We looked at the plots near the end. They show good overall agreement between efficiency for pions and protons over a wide kinematic region when comparing HDG3, HDG4, and real data.
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=== Issues on GitHub ===
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We reviewed [https://github.com/JeffersonLab/HDGeant4/issues the issues].
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* Issue 123: [https://github.com/JeffersonLab/HDGeant4/issues/123 TOF geometry generalization]
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** Added by Sean after the meeting.
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* Issue 121: [https://github.com/JeffersonLab/HDGeant4/issues/121 DIRC mirror reflectivity]
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** Yunjie Yang noticed that he was not getting optical photons at all in HDG4 whereas he was seeing a reasonable number of photons in HDG3. Justin looked into the problem and found that "the material properties weren't getting set for the G4OpticalSurface in HddsG4Builder". Richard will review the change to make sure that there are no other relevant properties that need to be set.
 +
* Issue 118: [https://github.com/JeffersonLab/HDGeant4/issues/118 Another segfault from G4VoxelNavigation::ComputeStep]
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** See issue 109.
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* Issue 117: [https://github.com/JeffersonLab/HDGeant4/issues/117 Segfault from G4VoxelNavigation::Comp]
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** See issue 109.
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* Issue 113: [https://github.com/JeffersonLab/HDGeant4/issues/113 Overall BCAL energy shift?]
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** We will ask Mark Dalton about the status of this issue.
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* Issue 111: [https://github.com/JeffersonLab/HDGeant4/issues/111 Difference in Acceptance between G3 and G4]
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** We will ask Colin Gleason about the status of this issue.
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* Issue 109: [https://github.com/JeffersonLab/HDGeant4/issues/109 G4Exception crash after Curve length mis-match]
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** Richard suspects that the problem may be due to running multi-threaded since our single-threaded jobs on the OSG do not crash this way. Naomi will put together instructions on how she is running hdgeant4 and Richard will try to reproduce the crash at UConn. Naomi will also check that she still observes the crash at CMU.
 +
* Issue 107: [https://github.com/JeffersonLab/HDGeant4/issues/107 Feature request - progress indicator]
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** On Richard's list of things to do.
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* Issue 105: [https://github.com/JeffersonLab/HDGeant4/issues/105 Reading in # events and source]
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** On Richard's list of things to do.
 +
* Issue 102: [https://github.com/JeffersonLab/HDGeant4/issues/102 Terminal cleanup?]
 +
** On Richard's list of things to do.
 +
* Issue 93: [https://github.com/JeffersonLab/HDGeant4/issues/93 Calorimeter timing mismatch between g3 and g4]
 +
** We will ask Alex Austregesilo  about the status of this issue.

Latest revision as of 20:50, 10 September 2019

HDGeant4 Meeting
Tuesday, August 13, 2019
2:00 pm EDT
JLab: CEBAF Center, A110
BlueJeans: 968592007

Agenda

  1. Review of minutes from the last meeting
  2. DIRC simulations (Richard)
  3. Tracking Efficiency Study (Naomi)
  4. Issues on GitHub
  5. Pull Requests on GitHub
  6. Action Item Review

Minutes

Present:

  • CMU: Naomi Jarvis
  • FSU: Sean Dobbs
  • JLab: Mark Ito (chair), Simon Taylor, Beni Zihlmann
  • UConn: Richard Jones

There is a recording of this meeting on the BlueJeans site. Use your JLab credentials to get access.

Review of minutes from the last meeting

We reviewed the minutes from the meeting on July 2. See the entry for Issue #109 below for the discussion.

HDGeant4 and the Time-of-Flight Upgrade

Sean has noticed that there are a few geometry parameters for the TOF in HDGeant4 that have hard-wired values. These should come from the HDDS files served by the CCDB. Richard agreed to have a look.

[Added in press: Sean created Issue #123 after (during?) the meeting].

DIRC simulations

See the entry for Issue #121 below for discussion on this topic.

Tracking Efficiency Study

We reviewed the plots that Naomi sent to Mark. These have been shown at a previous tracking meeting. See [[Media:NSJ_CDC_eff_simulation_21Aug2019.pdf|Naomi's slides] for the details. We looked at the plots near the end. They show good overall agreement between efficiency for pions and protons over a wide kinematic region when comparing HDG3, HDG4, and real data.

Issues on GitHub

We reviewed the issues.