期刊
COMPUTERS & MATHEMATICS WITH APPLICATIONS
卷 58, 期 5, 页码 1071-1080出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.camwa.2009.04.001
关键词
Lattice Boltzmann method; CFD; High performance computing; MPI; OpenMP; Parallelization
Ongoing research towards the development of a hybrid parallelization concept for lattice Boltzmann methods is presented. It allows coping with platforms sharing both the properties of shared and distributed architectures. The proposed approach relies on spatial domain decomposition where each domain represents a basic block entity which is solved on a symmetric multi-processing (SMP) system. Emphasis is placed on the software design and the reworking needed to achieve good performance using OpenMP in that context. Those ideas are implemented in the C++ project OpenLB, which is also sketched in this article. The efficiency of the proposed approaches is tested on a 3D benchmark problem and compared with a purely MPI based approach. (C) 2009 Elsevier Ltd. All rights reserved.
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