Project

A special example of hardware-driven research in the field of numerical methods is the emergence of modern time-simultaneous or time-parallel integrators. While the fundamental ideas date back more than 50 years [22], the benefits of such approaches have only become apparent with the advent of massively parallel HPC systems. To increase the scalability for a given fluid problem beyond spatial parallelization, we will expand FEATFLOW and thus the StrömungsRaum® platform with various approaches to parallelization regarding the time direction. In particular, we will consider new methods that can handle hyperbolic problems, such as fluid simulations with industrially relevant parameters, much better than current approaches in this field. These methods will be used both on a small and large scale. Thus, on the one hand, by choosing suitable time integrators, the methods within a time step can already be parallelized, on the other hand, many time steps can be calculated simultaneously [15]. The optimal linkage of this multi-layered parallelization, particularly with the addition of heterogeneous parallelization in space, will be examined more closely within the framework of performance engineering.