The Immersed Boundary-Lattice Boltzmann Method Parallel Model for Fluid-Structure Interaction on Heterogeneous Platforms
Joint Authors
Huang, Dong-Mei
Liu, Zhixiang
Liu, Huichao
Zhou, Liping
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-08-27
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Immersed boundary-lattice Boltzmann method (IB-LBM) has become a popular method for studying fluid-structure interaction (FSI) problems.
However, the performance issues of the IB-LBM have to be considered when simulating the practical problems.
The Graphics Processing Units (GPUs) from NVIDIA offer a possible solution for the parallel computing, while the CPU is a multicore processor that can also improve the parallel performance.
This paper proposes a parallel algorithm for IB-LBM on a CPU-GPU heterogeneous platform, in which the CPU not only controls the launch of the kernel function but also performs calculations.
According to the relatively local calculation characteristics of IB-LBM and the features of the heterogeneous platform, the flow field is divided into two parts: GPU computing domain and CPU computing domain.
CUDA and OpenMP are used for parallel computing on the two computing domains, respectively.
Since the calculation time is less than the data transmission time, a buffer is set at the junction of two computational domains.
The size of the buffer determines the number of the evolution of the flow field before the data exchange.
Therefore, the number of communications can be reduced by increasing buffer size.
The performance of the method was investigated and analyzed using the traditional metric MFLUPS.
The new algorithm is applied to the computational simulation of red blood cells (RBCs) in Poiseuille flow and through a microchannel.
American Psychological Association (APA)
Liu, Zhixiang& Liu, Huichao& Huang, Dong-Mei& Zhou, Liping. 2020. The Immersed Boundary-Lattice Boltzmann Method Parallel Model for Fluid-Structure Interaction on Heterogeneous Platforms. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1194725
Modern Language Association (MLA)
Liu, Zhixiang…[et al.]. The Immersed Boundary-Lattice Boltzmann Method Parallel Model for Fluid-Structure Interaction on Heterogeneous Platforms. Mathematical Problems in Engineering No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1194725
American Medical Association (AMA)
Liu, Zhixiang& Liu, Huichao& Huang, Dong-Mei& Zhou, Liping. The Immersed Boundary-Lattice Boltzmann Method Parallel Model for Fluid-Structure Interaction on Heterogeneous Platforms. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1194725
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194725