Parallel implementation of 3D-EFIT simulation using MPI library for elastic waves

Abstract

In present paper demonstrated the implementation of the three dimensional time-domain wavefield computation technique for a large and realistic modeling which called Elastodynamic Finite Integration Technique (EFIT). The disadvantage of the time-domain computation are time consumptions and memory requirements. In this work, we apply the portable message passing interface standard (MPI) for the domain decomposition and the communication between processes. For the outer boundary conditions, we have used convolutional perfectly matched layer (C-PML) as open boundaries to terminate the EFIT lattices. For the numerical simulation example, we performed 2 numerical models with size of 1000×1000×600 cells with 16 processors on cluster computer nodes. The MPI based 3D-EFIT code shows good performance on speed up, efficiency, and elapsed time.