Hierarchical Hybrid Grids for Mantle Convection: A First Study

In this article we consider the application of the Hierarchical Hybrid Grid Framework (HHG) to the geodynamical problem of simulating mantle convection. We describe the generation of a refined icosahedral grid and a further subdivision of the resulting prisms into tetrahedral elements. Based on this...

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Bibliographic Details
Published in2012 11th International Symposium on Parallel and Distributed Computing pp. 309 - 314
Main Authors Gmeiner, B., Mohr, M., Rude, U.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2012
Subjects
Approximation methods
Computational modeling
Earth
Equations
HHG
Jugene
mantle-convection
Mathematical model
Program processors
TERRA
Viscosity
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Summary:In this article we consider the application of the Hierarchical Hybrid Grid Framework (HHG) to the geodynamical problem of simulating mantle convection. We describe the generation of a refined icosahedral grid and a further subdivision of the resulting prisms into tetrahedral elements. Based on this mesh, we present performance results for HHG and compare these to the also Finite Element program TERRA, which is a well-known code for mantle convection using a matrix-free representation of the stiffness matrix. In our analysis we consider the most time consuming part of TERRA's solution algorithm and evaluate it in a strong scaling setup. Finally we present strong and weak scaling results for HHG to verify its parallel concepts, algorithms and grid flexibility on Jugene.
ISBN:1467325996
9781467325998
ISSN:2379-5352
DOI:10.1109/ISPDC.2012.49