抄録
This paper describes the GPU-assisted simulation of elastic wave propagation in solid based on the finite element method. The GPU, Graphics Processing Unit, was first developed only for processing 3D computer graphics several years ago. It has obtained both flexible programmability and fast numerical processing ability. This has led to the so-called GPGPU, General Purpose GPU i.e. applications of GPUs into non-graphics fields. In this paper, GPU is utilized for the simulation of elastic wave propagation in solid based on the dynamic explicit FEM. In the proposed method time integration process is performed on a GPU. The fundamental formulation of the method is described in detail, and its basic performance is tested through sample analyses. Finally, a new efficient algorithm for matrix-vector product is proposed.
