Fast GPU-Assisted FEM Simulations of 3D Periodic TCSAW, IHP, and XBAR Devices

被引：0
|
作者：
Koskela, J. [1 ,2 ]
Plessky, V. P. [1 ,2 ]
Willemsen, B. A. [2 ]
Turner, P. J. [2 ]
Garcia, B. [2 ]
Hammond, R. B. [2 ]
Fenzi, N. O. [2 ]
机构：
[1] GVR Trade SA, Gorgier, Switzerland
[2] Resonant Inc, Santa Barbara, CA 93117 USA
来源：
2019 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS) | 2019年
关键词：
SAW; FEM; SAW simulation;
D O I：
10.1109/ultsym.2019.8926183
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Recently, hierarchical cascading accelerated with graphics processing units (GPUs) has proven efficient for accelerating 3D periodic finite-element method (FEM) analysis of acoustic wave devices. However, the limited memory available in GPUs severely restricts the accuracy of the simulations; moreover, numerical libraries are not fully matured yet. This paper considers two techniques to circumvent these limitations. Firstly, to extend the size of the problems that can be handled, the use of GPUs can be limited to isolated cascading operations. While the related data transfer between RAM and GPUs hinders the efficiency of GPUs, significant acceleration is still achieved as compared to CPU-based implementation. Secondly, a GPU-friendly alternative is presented for the reduction of FEM system matrices to B-matrices. Examples of simulations of 3D periodic TCSAW, IHP, and XBAR arrays are provided.
引用
收藏
页码：181 / 184
页数：4
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