Kompetenznetzwerk für wissenschaftliches Höchstleistungsrechnen in Bayern


Optimizing the Parallel Granular Gas Solver to study the crater formation


Prof. Dr. Thorsten Pöschel
Institute for Multiscale Simulation
Friedrich-Alexander Universität Erlangen-Nürnberg


The aim of this proposal is to optimize a parallel software that solves The hydrodynamic equations for granular systems. Current software is developed based on previously funded KONWIHR project to investigate phenomenas that occur in very large systems and for very long time intervals. In this regard, we propose two plans to improve the parallel efficiency and accuracy of the current software. First, we suggest to use a novel time integration scheme that evokes less communications and second, we propose a one-step interpolation method which at the end leads to a better communication pattern and higher parallel efficiency. Our final goal is to study the impact of a soild object that falls on a surface composed of granular materials.