3rd Annual Meeting of EUROfusion HPC ACHs

25 Nov 2025, 09:00 → 26 Nov 2025, 17:00 Europe/Berlin

EPFL SCITAS - Lausanne - Switzerland (Starling Hotel - Rte Cantonale 31, 1025 Saint-Sulpice)

Zoom details to come

 

How to reach the Starling Hotel:

From Geneva airport : 
- train to Morges and bus 701 to bus stop "St Sulpice VD. Parc Scient."
or
- train to Renens and métro M1 to EPFL station, then cross the campus (about 10 min walk)

Hotel location 

Tuesday 25 November

1 Welcome - Paolo Ricci ACH-EPFL

2 Report of Team Leader ACH-EPFL - Gilles Fourestey

Reports from ACH-EPFL members (Chair: Gilles Fourestey)

3 Mathieu Peybernes - Directive-Based GPU Porting of SOLEDGE3X

4 Emily Bourne - Gyselalib++: A Portable, Kokkos-Based Library for Exascale Gyrokinetic Simulations

5 Cristian Sommariva - Cray's Inferno: a voyage through the porting of the JOREK code on LUMI-C

6 Alessandro Mari - Towards more efficient solvers for LIUQUE reconstruction

11:25 Break

Reports from ACH-EPFL members (Chair: Gilles Fourestey)

7 Nicola Varini - Progress report on GBS,GRILLIX and FELTOR

8 Florian Cabot - Updates on Visualization Tools

9 Piyush Panchal - Parallel IO in GENEX using ADIOS

10 Emmanuel Lanti - From SPEC to SP{OC | ECTRE}: breathing Pythonic life into a legacy Fortran code

13:35 Lunch

11 Report of Team Leader ACH-BSC/CIEMAT - Mervi Mantsinen (remote)

Reports from ACH-BSC/CIEMAT members (Chair - Alejandro Soba)

12 Gaurav Saxena - Hybrid Parallelization in SOLPS-ITER (remote)

13 Alejandro Soba - Work done over GENEX, SPEC, SPICE2 and Alya codes in the CIEMAT-BSC ACH

14 Federico Cipolletta - Solving the generalized eigenvalue problem in the JOREK free boundary and resistive wall extension: a progress report from the CIEMAT-BSC ACH about the assessment of using ELPA

16:00 Break

Reports from ACH-BSC/CIEMAT members (Chair - Alejandro Soba)

15 Xavier Saez - Status of BIT1 Porting to GPU and Progress on X-tork

16 Joan Vinyals - Analysis and optimization memory requirements for STELLA (and) Continuous performance monitoring for GVEC

17 Augusto Maidana - GPU Acceleration of ERO 2.0 for Advanced Plasma–Wall Interaction Studies

18:30 Meeting Dinner (departure from the Hotel, walking distance)

Wednesday 26 November

18 Report of Team Leader ACH-MPG - Roman Hatzky (remote)

Reports from ACH-MPG members (Chair: Roman Hatzky)

19 Huw Leggate - Consolidating ORB5 bsplines with the SPClibs library

20 Max Lindqvist - Progress report on STRUPHY and GENE

21 Serhiy Mochalskyy - Benchmarks and validation of the Pitagora HPC system

22 Tiago Ribeiro - Multi regions-of-interest (ROI) in REFMUL3

10:50 Break

23 Reports of Team ACH-VTT - Oskar Lappi & Ville-Markus Yli-Suutala

Reports from ACH-VTT members

24 Oskar Lappi - Scalable Domain-decomposed Monte Carlo Neutral Transport for Nuclear Fusion

25 Ville-Markus Yli-Suutala - Performance Measurement of Offloaded OpenMP Kernels on AMD GPUs

12:10 Lunch

13:00 Move to SPC

26 Tokamak visit in SPC (Swiss Plasma Center)

13:50 Move to Data Center CCT

27 TENTATIVE - Data Center CCT visit

14:45 Move to Starling Hotel

28 Discussions - General topics

29 End of the meeting