Advances in Computational Process Engineering using Lattice Boltzmann Methods on High Performance Computers
摘要
The present annual report documents the parallelization benefits of Lattice-Boltzmann particulate multiphase flow simulations realized in the open source software library OpenLB and performed on the HoreKa supercomputer. For this purpose, the parallel efficiency and total performance of test cases utilizing vectorization on CPUs as well as GPUs is evaluated for simulations up to 10 billion cells and node counts up to 320 CPU resp. 56 GPU nodes. Selected applications of these capabilities to resolved turbulent large eddy multiphase simulations conducted using Eulerian and Lagrangian approaches are described.