海洋模式LICOM的MIC并行优化  

MIC Parallel Optimization of Oceanic General Circulation Model LICOM

作　　者：王文浩[1,2] 姜金荣[1] 王玉柱[1,2] 迟学斌[1] 

机构地区：[1]中国科学院计算机网络信息中心,北京100190 [2]中国科学院大学,北京100049

出　　处：《科研信息化技术与应用》2015年第3期60-67,共8页E-science Technology & Application

基　　金："地球系统数值模拟装置"预研及原型系统建设(KJZD-EW-TZ-G09);国家电网公司科技项目(SGBJDK00DWJS1400040)

摘　　要：LICOM是中国科学院大气物理研究所开发的全球海洋环流模式,广泛应用于海洋研究和气候预测。随着分辨率的提高,LICOM对计算的要求呈几何级数的增长。多核或众核已成为当前主流的高性能计算体系结构,原LICOM程序只使用了MPI并行,无法发挥混合架构的高性能。本文介绍了如何在分析LICOM特征基础之上,应用Open MP及其它优化手段对LICOM进行MIC移植和并行优化,详细介绍了模式优化的实现过程。并通过数值试验证明了优化前后的计算效果有一定提高。LICOM is an ocean general circulation model （OGCM）, developed by Institute of Atmospheric Physics, Chinese Academy of Science, which is used in ocean research and climatic prediction. As the resolution is improved, the demand for computing increases in a geometric ratio. Many Integrated Core （MIC） Architecture is now the main architecture of high-performance computing. Howevver, the original LICOM version is realized by MPI, which can not make full use of the parallel capability of MIC Architecture. Inthis paper, the transferring and optimization.process from the original LICOM model to MIC architecture is introduced in detail, which uses OpenMP and other parallel optimization means on the basis of the LICOM＇s features. The numerical tests proved that there is a certain improvement in peformance after optimization.

关 键 词：并行计算 海洋环流 MIC优化 OPENMP 

分 类 号：F812.42[经济管理—财政学]