Large-scale adaptive mantle convection simulation

Burstedde, Carsten and Stadler, Georg and Alisic, Laura and Wilcox, Lucas C. and Tan, Eh and Gurnis, Michael and Ghattas, Omar (2013) Large-scale adaptive mantle convection simulation. Geophysical Journal International, 192 (3). pp. 889-906. ISSN ISSN: 0956-540X, ESSN: 1365-246X DOI https://doi.org/10.1093/gji/ggs070

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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.

Item Type:	Article
Additional Information:	This article has been accepted for publication in Geophysical Journal International © The Authors 2013. Published by Oxford University Press on behalf of The Royal Astronomical Society.All rights reserved.
Uncontrolled Keywords:	2013AREP; IA65; OAgE
Subjects:	02 - Geodynamics, Geophysics and Tectonics
Divisions:	02 - Geodynamics, Geophysics and Tectonics
Journal or Publication Title:	Geophysical Journal International
Volume:	192
Page Range:	pp. 889-906
Identification Number:	https://doi.org/10.1093/gji/ggs070
Depositing User:	Sarah Humbert
Date Deposited:	31 Mar 2013 21:12
Last Modified:	11 Jul 2014 11:42
URI:	http://eprints.esc.cam.ac.uk/id/eprint/2735

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