1st exaFOAM Workshop

We are excited to announce the first workshop on the exaFOAM project, which is aimed at pushing the boundaries of Computational Fluid Dynamics (CFD) technology. The exaFOAM project seeks to overcome the current limitations of CFD, particularly in the area of massively parallel High-Performance Computing (HPC) architectures.

The project involves the development and validation of a range of algorithmic improvements across the entire CFD process chain, including preprocessing, simulation, I/O, and post-processing. The effectiveness of these improvements will be demonstrated through a suite of HPC Grand Challenges and Industrial Application cases, where engineering design through CFD has contributed significantly to industrial competitiveness and sustainability across various sectors such as transportation, power generation, and disaster prevention, among others.

We invite researchers, practitioners, and students from academia, industry and government organizations to attend this workshop to learn more about the exaFOAM project and its innovative approach to CFD. Participants will also have the opportunity to engage in discussions with experts in the field.


June 12th, 2023 to June 13th, 2023 – from 13:00 CET to 18:00 CET


The workshop will be held virtually.


To register fill this registration form.


(The slides and recorded videos can be obtained in this webpage)

June 12th
13:00 – 13:15   Welcome
13:15 – 13:30   Introducing the exaFOAM project (Flavio Galeazzo, HLRS)
13:30 – 14:15   HPC Grand Challenges (Sergey Lesnik, Wikki GmbH  and Felix Kramer, UpstreamCFD)
14:15 – 14:30   Coffee break
14:30 – 15:15   Microbenchmarks (Flavio Galeazzo, HLRS)
15:15 – 16:00   GPGPU methods to simulate combustion with finite-rate chemistry (Federico Ghioldi, PoLiMi)
16:00 – 16:15   Coffee break
16:15 – 17:00   Parallel I/O (Gregor Weiß, HLRS)
17:00 – 17:45   Viscoelastic Fluid Flows for Industrial Relevant Case Studies (Ricardo Costa, University of Minho)
17:45 – 18:00   Concluding remarks
             18:00   End of day 1

June 13th
13:00 – 13:45   Impact of matrix data structure on the performances of the Sparse Matrix Vector kernel (Simone Bnà, CINECA)
13:45 – 14:30   Compression Methods for Adjoint-based Optimization of Unsteady Flow Problems (Kyriakos Giannakoglou, NTUA)
14:30 – 14:45   Coffee break
14:45 – 15:30   OpenFOAM performance analysis (Marta Garcia Gasulla, BSC)
15:30 – 16:15   Using InstRO/CAPI and ExtraP/SIMAMO to generate Low Perturbation Performance Measurements and Scaling Models for OpenFOAM Applications (Christian Iwainsky, TU Darmstadt)
16:15 – 17:00   Microbenchmarks (Flavio Galeazzo, HLRS)
17:00 – 17:15   Coffee Break
17:15 – 17:55   Microbenchmark and co-design (Filippo Marchetti, E4)
17:55 – 18:00   Concluding remarks
             18:00   End of day 2