NEST Hackathon 2025/06

23 Jun 2025, 09:00 → 26 Jun 2025, 23:59 Europe/Oslo

NMBU, Ås, Norway

Hans Ekkehard Plesser, Susanne Kunkel

This application-oriented hackathon is an in-person event allowing NEST users to bring their ideas for new NEST features and get started implementing them with the help of experienced NEST developers.

Please note that while participation is free of charge, costs for traveling, accommodation, food/drinks, etc. are at your own expense.

 

See also https://jugit.fz-juelich.de/nest/inm-6/group-meetings/-/issues/166

Monday 23 June

09:00 → 10:00 Welcome & planning

Potential topics to discuss:

• Structural plasticity
  • NEST / Node refactoring (Abigail, Johanna, Parul, Camillo, Jan, Tim, Ady, Susanne)
  • IPU (Cath, Ady, Parul)
• JEDI/JUPITER thread scaling (HEP, Markus, Guido, Alp, Jan, Pooja, Susanne, (Johanna))
  • Investigate origin of 3-4 socket catastrophic threading. Start with ci-bennch Fig. 3B reprodction on hambach also to exclude JURECA variability problems. What is a good tool to investigate false sharing of memory, or cache collisions
  • JURECA jemalloc variability problem. Exclude hardware settings using hambach
• PyNEST-NG / Porting tests to PyTest
• cMAM and EXABRAINPREP (Renan, Lies, Cath, Melissa, Markus, HEP)
• review PR on documentation of timers including graphics on state propagation cycle (Jan, Melissa, Jessica)
• look at status of long e-prop simulations -> plenary
• kernel doc (Alp, Jessica, Susanne) -> ???
• PRs/issues meetings /format of regular meetings
• NESTML (Camillo, Pooja)
• Alexandria S.C. (Elide, Robin)

10:30 → 11:30 PyNEST-NG

plenary

12:30 → 13:30 Lunch

13:30 → 14:30 review PR on documentation of timers including graphics on state propagation cycle

(Jan, Melissa, Jessica)

14:00 → 15:00 NESTML

(Camillo, Pooja)

17:00 → 21:00 Barbecue at Ås

Tuesday 24 June

10:00 → 11:00 Structural plasticity in NEST / Node refactoring

plenary

11:30 → 12:30 NEST Initiatives General Assemblies

12:30 → 13:30 Lunch

13:30 → 14:30 look at status of long e-prop simulations

plenary

14:30 → 15:30 cMAM and EXABRAINPREP

(Renan, Lies, Cath, Melissa, Markus, HEP)

15:00 → 16:00 NEST Conference Debriefing

Wednesday 25 June

09:00 → 10:00 JEDI/JUPITER thread scaling

plenary

10:00 → 11:30 Eprop code staring

Speakers: Agnes Korcsak-Gorzo, Camilo Jara Do Nascimento (University of Sussex), Hans Ekkehard Plesser

10:00 → 11:00 IPU SP

(Cath, Ady, Parul, Susanne, (Marie))

11:00 → 12:00 IPU comm

(Cath, Jan, Markus, Susanne)

11:00 → 12:00 NESTML

(Johanna, Camilo/Parul, Pooja)

12:30 → 13:30 Lunch

13:30 → 14:30 Alexandria S.C.

plenary
(presentation by Elide, Robin)

Thursday 26 June

09:00 → 10:00 NEST Board (closed meeting)

(Abigail, Hans Ekkehard, Markus Susanne)

10:00 → 11:00 PRs/issues meetings /format of regular meetings

plenary

12:30 → 13:30 Lunch

14:00 → 15:00 ci-beNNch

Jan, (Anno) et al.

15:00 → 16:00 cMAM code staring

Speakers: Catherine Schofmann, Hans Ekkehard Plesser

16:15 → 16:45 Hackathon wrap-up

Plenary

16:15 → 16:45 Wrap-up

• Structural plasticity
  • NEST / Node refactoring (Abigail, Johanna, Parul, Camillo, Jan, Tim, Ady, Susanne)
  • IPU (Cath, Ady, Parul)
• JEDI/JUPITER thread scaling (HEP, Markus, Guido, Alp, Jan, Pooja, Susanne, (Johanna))
  • Investigate origin of 3-4 socket catastrophic threading. Start with ci-bennch Fig. 3B reprodction on hambach also to exclude JURECA variability problems. What is a good tool to investigate false sharing of memory, or cache collisions
  • JURECA jemalloc variability problem. Exclude hardware settings using hambach
• PyNEST-NG / Porting tests to PyTest
• cMAM and EXABRAINPREP (Renan, Lies, Cath, Melissa, Markus, HEP)
• review PR on documentation of timers including graphics on state propagation cycle (Jan, Melissa, Jessica)
• look at status of long e-prop simulations -> plenary
• kernel doc (Alp, Jessica, Susanne) -> ???
• PRs/issues meetings /format of regular meetings
• NESTML (Camillo, Pooja)
• Alexandria S.C. (Elide, Robin)

17:00 → 22:00 Social in Oslo