SIMULATING EARTHQUAKE-INDUCED WAVE PROPAGATION WITH GPU-ACCELERATED COMPUTING

Palacios J.; Tarrillo A.; Fujita K.; Diaz M.; Zavala C.; Inocente I. · World Conference on Earthquake Engineering proceedings (2024)

Resumen

Realistic 3D high-fidelity modelling in earthquake simulation is essential to simulate wave propagations. However, achieving that level of detail comes with a high computational cost. This article addresses the challenge of conducting high-fidelity 3D simulations while working within personal computers' limited memory and processing units. We explore the application of accelerated computing in wave propagation analysis by harnessing the computing power of Graphics Processing Units (GPU). In this study, we present gQuake, a program designed for the numerical simulation of 3D models utilizing GPUs. This program achieved a 10.6-fold reduction in the simulation time compared to conventional programs. Additionally, we applied absorbing boundary conditions to reduce the memory footprint and computational load in wave propagation analysis. This approach facilitates 3D high-fidelity simulations and paves the way for more realistic simulations. Our findings hold significant potential to advance the understanding of seismic threats and contribute to risk mitigation in earthquake-prone cities.

Instituciones: Universidad Nacional de Ingeniería