GPU Parallelization of Solving Pressure Poisson Equation in MPS Method

Author:

Sun Zhe1,Xu Zi-Kai1,Zhang Xi2,Yang Bi-Ye1,Zhang Gui-Yong13,Zhang Zhi-Fan1

Affiliation:

1. School of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian 116024, P. R. China

2. National Supercomputing Center, Guangzhou, 511400, P. R. China

3. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai 200240, P. R. China

Abstract

In this paper, the explicit solving of pressure Poisson equation and GPU parallelization were employed to improve the efficiency of MPS method, which is one of the mainstream particle methods. The performance of the explicit GPU parallel MPS method is discussed using two-dimensional dam-break and sloshing problems. The reliability and accuracy of the developed algorithm were validated against the results of traditional implicit solving method (based on GMRES) and experiment. In terms of efficiency improvement, compared with the traditional CPU-based serial solver, the explicit GPU-parallelized algorithm greatly reduces the computational time of the pressure Poisson equation. More specifically, the maximum acceleration ratios of 11.486 and 13.89 can be obtained by numerical simulation for 2D dam-break and sloshing problems with different particle numbers.

Funder

National Natural Science Foundation of China

Open Project of State Key Laboratory of Deep Sea Mineral Resources Development and Utilization Technology

Young Scholar Supporting Project of Dalian City

Liao Ning Revitalization Talents Program

Fundamental Research Funds for the Central Universities

Publisher

World Scientific Pub Co Pte Ltd

Subject

Computational Mathematics,Computer Science (miscellaneous)

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