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| Titel |
LaMEM (Lithosphere and Mantle Evolution Model): advancing a staggered-grid finite difference version of the code. |
| VerfasserIn |
Anton Popov, Boris Kaus |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250078921
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| Zusammenfassung |
| The main goal of the new staggered-grid finite difference version of the LaMEM code is a stable and efficient solution of the highly heterogeneous and nonlinear geodynamic models on the massively parallel computers.
The key components of the new branch of the code are:
i) complete MPI-based parallelization
ii) stable and computationally cheap spatial discretization
iii) diffusion-resistive treatment of material advection with marker-in-cell technique
iv) accurate treatment of the free surface by properly removing air cells
v) consistent implementation of the viso-(elasto)-plastic rock rheologies
vi) scalable linear and non-linear solvers via PETSc infrastructure
In this work we show details of the algorithms and implementation together with a few common benchmarks and example models.
Acknowledgements.
Funding was provided by the European Research Council under the European Community’s Seventh Framework Program (FP7/2007-2013) / ERC Grant agreement #258830. Numerical computations have been performed on JUQUEEN of the Jülich high-performance computing center. |
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