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C-Coupler1: a Chinese community coupler for Earth system modeling

L. Liu¹, G. Yang^1,2, B. Wang^1,3, C. Zhang², R. Li², Z. Zhang², Y. Ji², and L. Wang⁴

 

1Ministry of Education Key Laboratory for Earth System Modeling, Center for Earth System Science (CESS), Tsinghua University, Beijing, China

2Department of Computer Science and Technology, Tsinghua University, Beijing, China

3State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China

4College of Global Change and Earth System Science, Beijing Normal University, Beijing, China

 

ABSTRACT

A coupler is a fundamental software tool for Earth system modeling. Targeting the requirements of 3-D coupling, high-level sharing, common model software platform and better parallel performance, we started to design and develop a community coupler (C-Coupler) from 2010 in China, and finished the first version (C-Coupler1) recently. C-Coupler1 is a parallel 3-D coupler that achieves the same (bitwise-identical) results with any number of processes. Guided by the general design of C-Coupler, C-Coupler1 enables various component models and various coupled models to be integrated on the same common model software platform to achieve a higher-level sharing, where the component models and the coupler can keep the same code version in various model configurations for simulation. Moreover, it provides the C-Coupler platform, a uniform runtime environment for operating various kinds of model simulations in the same manner. C-Coupler1 is ready for Earth system modeling, and it is publicly available. In China, there are more and more modeling groups using C-Coupler1 for the development and application of models.

 

PUBLISHED BY: GEOSCIENTIFIC MODEL DEVELOPMENT, 2014, 7 (5): 2281-2302

 

SOURCE:  http://www.geosci-model-dev.net/7/2281/2014/gmd-7-2281-2014.html