3 papers
cs.PF2025
Large-scale Multigrid with Adaptive Galerkin Coarsening
Fabian Böhm, Nils Kohl, Harald Köstler +1
We propose a robust, adaptive coarse-grid correction scheme for matrix-free geometric multigrid targeting PDEs with strongly varying coefficients. The method combines uniform geome…
cs.DC2025
Large-Scale Simulations of Fully Resolved Complex Moving Geometries with Partially Saturated Cells
P. Suffa, S. Kemmler, H. Koestler +1
We employ the Partially Saturated Cells Method (PSM) to model the interaction between the fluid flow and solid moving objects as an extension to the conventional lattice Boltzmann…
cs.CE2024
Efficiency and scalability of fully-resolved fluid-particle simulations on heterogeneous CPU-GPU architectures
Samuel Kemmler, Christoph Rettinger, Ulrich Rüde +2
Current supercomputers often have a heterogeneous architecture using both CPUs and GPUs. At the same time, numerical simulation tasks frequently involve multiphysics scenarios whos…