An MPI-based MoSST core dynamics model

Details An MPI-based MoSST core dynamics model An MPI-based MoSST core dynamics model

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pepi..170...46j&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 170, Issue 1-2, p. 46-51.

Physics

1

Scientific paper

Distributed systems are among the main cost-effective and expandable platforms for high-end scientific computing. Therefore scalable numerical models are important for effective use of such systems. In this paper, we present an MPI-based numerical core dynamics model for simulation of geodynamo and planetary dynamos, and for simulation of core mantle interactions. The model is developed based on MPI libraries. Two algorithms are used for node node communication: a “master slave” architecture and a “divide-and-conquer” architecture. The former is easy to implement but not scalable in communication. The latter is scalable in both computation and communication. The model scalability is tested on Linux PC clusters with up to 128 nodes. This model is also benchmarked with a published numerical dynamo model solution.

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