Parallel coupling method for global system mode

Abstract

The invention relates to a parallel coupling method for a global system mode, belonging to the technical field of coupling of the global system mode. The parallel coupling method comprises the following three stages of: firstly, an initial coupling stage based on a subdomain mapping relation, wherein a running process in a given initial coupling stage is modified to generate a dynamic subdivisionand a parallel route which are based on an interpolation algorithm and used for parallel communication and parallel interpolation; secondly, a coupling operation stage which is based on subdomain mapping and is realized by correspondingly modifying running processes of the parallel communication and the parallel interpolation in a given coupling operation stage; and thirdly, a coupling end stage which adopts a given method. The parallel coupling method is based on the subdomain mapping and considers the parallel communication and the parallel interpolation of a coupler in a combined manner toeliminate a communication operation in the parallel interpolation process of the coupler, so that the communication frequency of an entire system is reduced. The parallel coupling method is applied to the coupler and aims to improve the coupling property of the global system mode.

Description

technical field [0001] The invention belongs to the technical field of coupling of earth system models, and in particular relates to a parallel coupling technical solution for earth system models. Background technique [0002] Earth system model is an indispensable scientific research tool for simulating the dynamical, physical, chemical and biological process changes of the whole earth system in the study of global change, which is realized by programming. As a dedicated high-performance technology platform, the coupler connects the component models that simulate the various layers of the earth (a subsystem in the earth system), and is the core component of the complete earth system model. The coupler has two main functions: parallel communication, due to energy conservation, the component modes will exchange a large amount of data on the common interface; parallel interpolation, because the grids based on different component modes are different, the data obtained by parall...

AI Technical Summary

Problems solved by technology

As the scale of the future earth system model continues to expand, the task of the coupler will b

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