Achieving Performance for Paleoclimate Models

Climate modelers use a hierarchy of models, ranging from box models to 3D, to address a huge range of time and space scale, from cloud microphysics to ice-sheet dynamics, and from seconds to millennium, or even more. This implies using the largest computers available, or places a heavy burden on the parameterization of unresolved processes.

In paleoclimate studies, the length of the simulations (century to multi-millenia) restrict 3D models to coarse resolution and small size of grids, constraining parallelization possibilities. In this talk, I will present the scientific goals, and the strategy to achieve computing performance.

Olivier Marti, Institut Pierre Simon Laplace, France

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