| Literature DB >> 35498162 |
John Gounley1, Madhurima Vardhan2, Erik W Draeger3, Pedro Valero-Lara4, Shirley V Moore5, Amanda Randles2.
Abstract
A propagation pattern for the moment representation of the regularized lattice Boltzmann method (LBM) in three dimensions is presented. Using effectively lossless compression, the simulation state is stored as a set of moments of the lattice Boltzmann distribution function, instead of the distribution function itself. An efficient cache-aware propagation pattern for this moment representation has the effect of substantially reducing both the storage and memory bandwidth required for LBM simulations. This paper extends recent work with the moment representation by expanding the performance analysis on central processing unit (CPU) architectures, considering how boundary conditions are implemented, and demonstrating the effectiveness of the moment representation on a graphics processing unit (GPU) architecture.Entities:
Keywords: Fluid dynamics; High performance computing; Lattice Boltzmann methods
Year: 2021 PMID: 35498162 PMCID: PMC9053389 DOI: 10.1109/tpds.2021.3098456
Source DB: PubMed Journal: IEEE Trans Parallel Distrib Syst ISSN: 1045-9219 Impact factor: 3.757