Finite difference numerical simulations of acoustic fields using the graphic processing unit

Author

Ying Deng ; Hao Chen ; Xiao He

Author_Institution

State Key Lab. of Acoust., Inst. of Acoust., Beijing, China

fYear

2013

fDate

25-27 Oct. 2013

Firstpage

1

Lastpage

4

Abstract

The finite difference time domain (FDTD) method is widely used in numerical simulations of acoustic fields. When the size of the model is too large, the amount of the grid points in the computational region is correspondingly huge, then the simulation will cost a lot of calculation time using CPU in a serial program. In this paper we use the graphic processing unit (GPU) to solve this problem. First, we use GPU to accelerate the numerical simulation of 2D second-order FDTD for the fluid medium model and get a 50-time speedup. Then we accelerate a 3-D model in horizontally layered isotropic medium and obtain a 10-time speedup. Based on this research, we can use GPU to accelerate simulations of more complicated models with MPI or OpenMP.

Keywords

acoustic field; finite difference time-domain analysis; graphics processing units; 2D second-order FDTD; 3D model; GPU; MPI models; OpenMP models; acoustic fields; computational region; finite difference time domain method; fluid medium model; graphic processing unit; grid points; horizontally layered isotropic medium; numerical simulation; numerical simulations; serial program; FDTD; GPU; acoustic field; numerical simulation; parallel computing;

fLanguage

English

Publisher

ieee

Conference_Titel

Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA), 2013 Symposium on

Conference_Location

Changsha

Print_ISBN

978-1-4799-3289-4

Type

conf

DOI

10.1109/SPAWDA.2013.6841077

Filename

6841077