Scalable Parallel Algorithm of Multiple-Relaxation-Time Lattice Boltzmann Method with Large Eddy Simulation on Multi-GPUs
Joint Authors
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-01
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
The lattice Boltzmann method (LBM) has become an attractive and promising approach in computational fluid dynamics (CFD).
In this paper, parallel algorithm of D3Q19 multi-relaxation-time LBM with large eddy simulation (LES) is presented to simulate 3D flow past a sphere using multi-GPUs (graphic processing units).
In order to deal with complex boundary, the judgement method of boundary lattice for complex boundary is devised.
The 3D domain decomposition method is applied to improve the scalability for cluster, and the overlapping mode is introduced to hide the communication time by dividing the subdomain into two parts: inner part and outer part.
Numerical results show good agreement with literature and the 12 Kepler K20M GPUs perform about 5100 million lattice updates per second, which indicates considerable scalability.
American Psychological Association (APA)
Xu, Lei& Song, AnPing& Zhang, Wu. 2018. Scalable Parallel Algorithm of Multiple-Relaxation-Time Lattice Boltzmann Method with Large Eddy Simulation on Multi-GPUs. Scientific Programming،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1214631
Modern Language Association (MLA)
Xu, Lei…[et al.]. Scalable Parallel Algorithm of Multiple-Relaxation-Time Lattice Boltzmann Method with Large Eddy Simulation on Multi-GPUs. Scientific Programming No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1214631
American Medical Association (AMA)
Xu, Lei& Song, AnPing& Zhang, Wu. Scalable Parallel Algorithm of Multiple-Relaxation-Time Lattice Boltzmann Method with Large Eddy Simulation on Multi-GPUs. Scientific Programming. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1214631
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1214631