A parallel implementation of the Lattice Solid Model for the simulation of rock mechanics and earthquake dynamics

-- The Lattice Solid Model has been used successfully as a virtual laboratory to simulate fracturing of rocks, the dynamics of faults, earthquakes and gouge processes. However, results from those simulations show that in order to make the next step towards more realistic experiments it will be neces...

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Bibliographic Details
Published in:Pure and Applied Geophysics 2004-12, Vol.161 (11-12), p.2265-2277
Main Authors: ABED, Steffen, PLACE, David, MORA, Peter
Format: Article
Language:English
Subjects:
Benchmarks
Earth sciences
Earth, ocean, space
Earthquakes
Earthquakes, seismology
Exact sciences and technology
Internal geophysics
Rock mechanics
Rocks
Seismic activity
Solids
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Summary:-- The Lattice Solid Model has been used successfully as a virtual laboratory to simulate fracturing of rocks, the dynamics of faults, earthquakes and gouge processes. However, results from those simulations show that in order to make the next step towards more realistic experiments it will be necessary to use models containing a significantly larger number of particles than current models. Thus, those simulations will require a greatly increased amount of computational resources. Whereas the computing power provided by single processors can be expected to increase according to "Moore's law," i.e., to double every 18-24 months, parallel computers can provide significantly larger computing power today. In order to make this computing power available for the simulation of the microphysics of earthquakes, a parallel version of the Lattice Solid Model has been implemented. Benchmarks using large models with several millions of particles have shown that the parallel implementation of the Lattice Solid Model can achieve a high parallel-efficiency of about 80% for large numbers of processors on different computer architectures.[PUBLICATION ABSTRACT]
ISSN:0033-4553
1420-9136
DOI:10.1007/s00024-004-2562-x