A novel parallel approach for 3D seismological problems

Abstract

The large spatial scale associated with the modelling of strong ground motion in three dimensions requires enormous computational resources. For this reason, the simulation of soil shaking requires high-performance computing. The aim of this work is to present a new parallel approach for these kind of problems based on domain decomposition technique. The main idea is to subdivide the original problem into local ones. It allows to investigate large-scale problems that cannot be solved by a serial code. The performance of our parallel algorithm has been examined analysing computational times, speed-up and efficiency. Results of this approach are shown and discussed.

Keywords:

• seismic wave propagation
• domain decomposition
• finite element method
• parallel computing

2010 AMS Subject Classifications::

• 65Y05
• 68W10
• 65M55
• 86A15

Acknowledgements

This work has been supported by GNCS–INdAM and Research Grants of the University of Messina. We are very grateful to Bruno Firmani (University of Trento), Piero Lanucara (CASPUR, Rome) and Luigia Puccio (University of Messina) for their help and criticism on mathematical as well as numerical aspects of the paper.

Notes

http://www.caspur.it.

http://lagrit.lanl.gov/.