OpenSCALING project highlights major advancements at the 2025 International Modelica and FMI Conference
This year’s International Modelica and FMI Conference in Lucerne was a great opportunity to share the latest achievements of the ITEA OpenSCALING project with the community. Consortium partners presented their newest research results, with strong contributions especially in the sessions on Modelica & AI, Simulation & Optimization and New Translation Methods and Tools, developed in the project’s work packages on Large-scale System Modeling and Physics-enhanced Neural ODEs (PeN-ODEs).
Although the project is only halfway, it has already exceeded its goals for speeding up model compilation time and simulation time, achieving improvements of 10 to 100 times, for specific cases. The previous ceiling of 10 million equations has also been surpassed by a large margin thanks to new array-preserving compilation methods. Strong improved methods for robust training of PeN-ODE architectures and solving of optimisation problems were also demonstrated.
Regarding the targeted standard enhancements of Modelica, FMI and SSP, the project presented a first proposal for the new layered standard uncertainty quantification (ls-uq), applicable to Modelica, FMI and SSP, and the layered standard sensitivity analysis ls-sa for FMI, complete with concrete examples and specification details.
During the conference, the project hosted a series of tutorials and user presentations that helped make the relatively new SSP (System Structure and Parameterization) more widely understood. Case studies illustrated how a credible modelling and simulation workflow can be achieved, while demonstrators showed how OpenSCALING tools and technologies can be applied in practice, improving trust in simulations without reducing productivity.
Five OpenSCALING tool vendors also presented their recent tool enhancements during vendor sessions, as tutorial and at their exhibition booths, demonstrating that the project’s results are already being put into practice.
Given that the second half of the OpenSCALING project is still ahead of us, and more iterations will be needed to refine and generalise the methods, tools, standards, and demonstrators, it was impressive to see how frequently the OpenSCALING project was mentioned during the conference. The list of publications on https://openscaling.org/publications has grown by 12 conference publications.
More information: https://itea4.org/project/openscaling.html and https://openscaling.org/.
Image attribution: "Hybrid Simulation Models for Embedded Applications: A Modelica and eFMI approach – Presentation at the 16th International Modelica & FMI Conference, 2025" by DLR is licensed under CC BY-NC-ND 3.0
