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AMM

Seminar

Quadtree-adaptive global atmospheric modelling on parallel systems

Stephane Popinet, (NIWA)
Wednesday 24 October 2012, 10:05-10:40

Satellite

Abstract

I will present initial results for a three-dimensional, hydrostatic, global atmospheric model combining quadtree, horizontal adaptivity on a cubed sphere grid with a standard, layered vertical discretisation. This model is implemented within the Gerris framework (http://gfs.sf.net) and thus automatically inherits attributes such as data parallelism and load-balancing. For large-scale atmospheric simulations, I will show that quadtree-adaptivity leads to a large gain in the scaling exponent relating computational cost to the resolution of sharp frontal structures.

Presentation

[pdf ]

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