Geodynamo and mantle convection simulations on the Earth Simulator using the Yin-Yang grid

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dc.creatorKageyama, Akira
dc.creatorYoshida, Masaki
dc.date2005-06-26
dc.date.accessioned2026-07-07T06:23:55Z
dc.date.available2026-07-07T06:23:55Z
dc.descriptionWe have developed finite difference codes based on the Yin-Yang grid for the geodynamo simulation and the mantle convection simulation. The Yin-Yang grid is a kind of spherical overset grid that is composed of two identical component grids. The intrinsic simplicity of the mesh configuration of the Yin-Yang grid enables us to develop highly optimized simulation codes on massively parallel supercomputers. The Yin-Yang geodynamo code has achieved 15.2 Tflops with 4096 processors on the Earth Simulator. This represents 46% of the theoretical peak performance. The Yin-Yang mantle code has enabled us to carry out mantle convection simulations in realistic regimes with a Rayleigh number of $10^7$ including strongly temperature-dependent viscosity with spatial contrast up to $10^6$.
dc.descriptionPlenary talk at SciDAC 2005
dc.identifierhttps://arxiv.org/abs/physics/0506192
dc.identifierhttp://arxiv.org/abs/physics/0506192
dc.identifierJournal of Physics: Conference Series, Vol.16, 325-338 (2005)
dc.identifierdoi:10.1088/1742-6596/16/1/045
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96371
dc.subjectGeophysics
dc.titleGeodynamo and mantle convection simulations on the Earth Simulator using the Yin-Yang grid
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