Performance analysis of the free surface lattice Boltzmann implementation in waLBerla

Plewinski J, Alt C, Köstler H, Rüde U (2024)

Publication Type: Journal article

Publication year: 2024

Journal

Proceedings in Applied Mathematics and Mechanics Gesellschaft für Angewandte Mathematik und Mechanik (GAMM)

DOI: 10.1002/pamm.202400196

Abstract

The free-surface lattice Boltzmann method uses a volume of fluid approach to simulate immiscible two-fluid flow problems. It divides the simulation domain into three distinct phases—gas, fluid, and interface—where computation within the gas phase is disregarded. The interface delineates a one-cell-thick layer between the first two phases, validated physically for implementation in the HPC C++ multiphysics framework waLBerla but lacking an exhaustive performance analysis. This paper aims to shed light on node-level performance on different architectures, employing continuous benchmarking, showing and analyzing weak scaling results on a modern HPC cluster, the Fritz supercomputer, and reporting energy consumption for the current implementation.

Authors with CRIS profile

Jonas Plewinski Lehrstuhl für Informatik 10 (Systemsimulation) (LSS) Christoph Alt Lehrstuhl für Informatik 10 (Systemsimulation) (LSS) Harald Köstler Lehrstuhl für Informatik 10 (Systemsimulation) (LSS) Ulrich Rüde Lehrstuhl für Informatik 10 (Systemsimulation) (LSS)

How to cite

APA:

Plewinski, J., Alt, C., Köstler, H., & Rüde, U. (2024). Performance analysis of the free surface lattice Boltzmann implementation in waLBerla. Proceedings in Applied Mathematics and Mechanics. https://doi.org/10.1002/pamm.202400196

MLA:

Plewinski, Jonas, et al. "Performance analysis of the free surface lattice Boltzmann implementation in waLBerla." Proceedings in Applied Mathematics and Mechanics (2024).

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