Abstract
The 3D finite difference modeling of the wave propagation of M>8 earthquakes in subduction zones in a realistic-size earth is very computationally intensive task. We use a parallel finite difference code that uses second order operators in time and fourth order differences in space on a staggered grid. We develop an efficient parallel program using message passing interface (MPI) and a kinematic earthquake rupture process. We achieve an efficiency of 94% with 128 (and 85% extrapolating to 1,024) processors on a dual core platform. Satisfactory results for a large subduction earthquake that occurred in Mexico in 1985 are given.
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Cabrera, E., Chavez, M., Madariaga, R., Perea, N., Frisenda, M. (2007). 3D Parallel Elastodynamic Modeling of Large Subduction Earthquakes. In: Cappello, F., Herault, T., Dongarra, J. (eds) Recent Advances in Parallel Virtual Machine and Message Passing Interface. EuroPVM/MPI 2007. Lecture Notes in Computer Science, vol 4757. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75416-9_50
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DOI: https://doi.org/10.1007/978-3-540-75416-9_50
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-75415-2
Online ISBN: 978-3-540-75416-9
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