Public minutes of 118th SB meeting on February 7th, 2020

Present:Marc Verderi, Susanna Guatelli, Makoto Asai, Ben Morgan, Daren Sawkey, Soon Yung Jun, Dennis Wright, Alberto Ribon, Gabriele Cosmo, Vladimir Ivanchenko, Witold Pokorski, Ivana Hrivnacova, Gunter Folger

Excused:Laurent Garnier, John Allison (OB liaison), Alex Howard, Luciano Pandola, Mihaly Novak

1. Regular items

• The open requirements, pending actions, status of long open bug reports, as well as physics and computing performance monitoring were reviewed.
• Hadronic physics performance:
  • The proposition to experiments for Birks parameter tuning and validation still require following up. It is suspected that the value used is not adapted to the detailed simulation.
• Computing performance:
  • An ~8% degradation is observed on version 10.5 and is understood as improvements in physics, i.e. BERT-FTF transition region and pi absorption, which generates more secondaries.
  • To better reference and monitor physics CPU performance across releases, it was decided to add a test without magnetic field in simplified calorimeter and an other one with a realistic setup and realistic non-uniform field.

2. 2020 Collaboration processes

• The 2020 Collaboration census was reported.
• Elections of the working group coordinators and other representatives will be conducted soon, and should be concluded by the end of February.

3. 2020 work plan and shaping of next release (10.7 or 11.0)

• The 2020 work plan should be completed by early March for publication
  • A Technical Forum dedicated to this work plan discussion will be scheduled in late March.
• Identifying and reviewing status and planning of the major development items that should motivate the decision for moving to a major release (11.0) has to be conducted: coordinators are invited to list all those items so that progress can be regularly reviewed in the coming SB meetings.

4. 10.6.p01 release

• All merge requests are staged and under test.
• The patch will be released shortly.

5. AOB

5.1 Recent events

• Technical Forum, CERN, 16 January 2020
  • Some new user proposals. All are invited to look at the presentations uploaded in the agenda.
  • The next TF will highlight the 2020 work plan. To be scheduled in late March.
• Tutorials
  • “VIII International Geant4 School”, Belgrade (Serbia), 18-23 November 2019.
  • 3-days beginner course “First Steps with Geant4”, CERN, 21-23 January, 2020

5.2 Near future events

• Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo 2020, Chiba (Japan), 18-22 May 2020
• 25th Geant4 Collaboration Meeting, IRISA Laboratory, Rennes (France), 21-25 September 2020.
• 4th Geant4 International User Conference at the Physics-Medicine-Biology frontier, Napoli, Italy, 19-21 October 2020
• 4th LPCC (LHC Physics Center at CERN) detector simulation workshop, 2-3 November 2020 at CERN
• Tutorials
  • 3-days advanced course, CERN, 24-26 March, 2020
  • Geant4 Course at the 17th Seminar on Software for Nuclear, Sub-nuclear and Applied Physics, Porto Conte, Alghero (Italy), 24-29 May 2020
  • SNO-labs summer school, SNO, 6-10th July, 2020
  • IX International Geant4 School, Catania, 5-9 October, 2020

Meeting Date

Friday, February 7, 2020 - 12:00