19th Pencil Code User Meeting 2023

DATE & VENUE: 4th to 8th September 2023
The meeting was held in Graz (Austria) at the University of Graz.


Monday, 4 9-12Meet & Greet
13:30Opening remarks, Axel: code updates & statistics
14:00PC Steering Committee: Status Report (Nils)
14:30Meeting Agenda
15:00Introduction round for new users
15:30Coffee break
16:00Pencil Code 101: General Concepts & Dicussion
18:00Welcome Reception
Tuesday, 5 09:00Matthias Reinhardt: GPU acceleration of Pencil Code by Astaroth
09:30Jörn Warnecke: Studying small-scale dynamos at low magnetic Prandtl numbers using GPUs and smart initial conditions
10:00Discussion on large-scale models & GPU
10:30Coffee break
11:00Hongzhe Zhou: Helical and nonhelical dynamos in thin accretion disks
11:30Ramkishor Sharma: Gravitational waves from a first-oder phase transition
12:00Yaoyu Li: Primodial Magnetic Field as a common solution of nanohertz gravitational waves and Hubble tension
12:15Lunch break
13:30Alberto Roper Pol: Cosmology and gravitational waves with the Pencil Code and CosmoGW
14:00Daniel Teubenbacher: Hermean magnetospheric boundary in AIKEF hybrid simulations
14:30Philippe Bourdin: Diffusion in solar HD convection & Technical advancements of PC
15:00Discussion on existing and future Code Interfaces
15:30Coffee break
16:00Tour in the Institute (Tower Library & Observation Platform)
16:30Social Activity & Guided Tour (Landeszeughaus, City)
Wednesday, 6 09:00Johannes Tschernitz: Ohmic heating of a hot loop above an active region
09:30Vartika Pandey: Finding an equilibrium stratification for solar atmospheric models
10:00Isabella Kraus: Coronal bright point simulation driven with Hinode observations
10:30Coffee break
11:00Ask-Me-Anything, general Q&A Session
12:15Lunch break
13:30Excursion (Köflach - Piber) & Dinner at Heurigenschänke "Sattler"
Thursday, 7 09:00Hands-on tutorial for beginners:
Running an example and data reading in IDL, Python, Mathematica
Break-out rooms: Coding Session
10:30Coffee break
11:00Discussion of Agenda Items & Work Distribution
12:15Lunch break
13:30Coding Session
15:30Coffee break
16:00Coding Session
18:00Barbeque at the Lustbühel Observatory
Friday, 8 09:00Coding Session
10:30Coffee break
11:00Session reports
11:30Agenda wrap-up
12:00Closing Remarks
12:15Lunch break
13:30Individual Coding Sessions
15:30Coffee break
16:00Individual Coding Sessions


  • LOC: Vartika Pandey, IGAM/Graz
  • LOC: Johannes Tschernitz, IGAM/Graz
  • LOC: Isabella Kraus, IGAM/Graz
  • LOC&SOC: Philippe-A. Bourdin, IGAM/Graz
  • -----
  • Axel Brandenburg, NORDITA/Stockholm
  • Simon Candelaresi (online), University of Stuttgart
  • Piyali Chatterjee (online), Indian Institute of Astrophysics
  • Ming-Yang Cui, Purple Mountain Observatory/Nanjing
  • Mayusree Das (online), Indian Institute of Science/Bengaluru
  • Fabio Del Sordo (online), Institute of Space Sciences - CSIC/Barcelona
  • Frederick Gent, Aalto University/Espoo
  • Oksana Iarygina (online), NORDITA/Stockholm
  • Yutong He (online), NORDITA/Stockholm
  • Nils Haugen (online), SINTEF Energy Research
  • Maarit Korpi-Lagg (online), Aalto University/Espoo
  • Yao-Yu Li, Purple Mountain Observatory/Nanjing
  • Antonino Salvino Midiri, Université de Genève
  • Dhrubaditya Mitra (online), NORDITA/Stockholm
  • Yasuhito Narita, Austrian Academy of Sciences
  • Nousaba Nasrin Protiti (online), NORDITA/Stockholm
  • Touko Puro (online), Aalto University/Espoo
  • Matthias Reinhardt, Aalto University/Espoo
  • Alberto Roper Pol, Université de Genève
  • Sovan Sau (online), Indian Institute of Technology/Guwahati
  • Ramkishor Sharma, NORDITA/Stockholm
  • Sankalp Srivastava (online), Indian Institute of Astrophysics/Bengaluru
  • Daniel Teubenbacher, Austrian Academy of Sciences
  • Jörn Warnecke (online), MPS/Göttingen
  • Hongzhe Zhou, Tsung-Dao Lee Institute, Shanghai Jiao Tong University

Group Photo of the User Meeting 2023
Group Photo of the User Meeting 2023 at the Armory
Group Photo of the Dinner after the Excursion

The next meeting will be in Barcelona (2024).