Large-scale adaptive mantle convection simulation
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Authors
Burstedde, Carsten
Stadler, Georg
Alisic, Laura
Wilcox, Lucas C.
Tan, Eh
Gurnis, Michael
Ghattas, Omar
Subjects
Numerical solutions
Mantle processes
Dynamics: convection currents, and mantle plumes
Mantle processes
Dynamics: convection currents, and mantle plumes
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Date of Issue
2013
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Abstract
A new generation, parallel adaptive-mesh mantle convection code, Rhea, is described and benchmarked. Rhea targets large-scale mantle convection simulations on parallel computers, and thus has been developed with a strong focus on computational efficiency and parallel scalability of both mesh handling and numerical solvers. Rhea builds mantle convection solvers on a collection of parallel octree-based adaptive finite element libraries that support new distributed data structures and parallel algorithms for dynamic coarsening, refinement, rebalancing and repartitioning of the mesh. In this study we demonstrate scalability to 122 880 compute cores and verify correctness of the implementation. We present the numerical approximation and convergence properties using 3-D benchmark problems and other tests for variable-viscosity Stokes flow and thermal convection.
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Article
Description
The article of record as published may be found at http://dx.doi.org/10.1093/gji/ggs070
Geophysical Journal International, Vol. 192, pp. 889-906
Geophysical Journal International, Vol. 192, pp. 889-906
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.