GRAPES_MESO模式标准初始化(SI)系统并行化研究  

Parallelization of SI Application in GRAPES_MESO

作　　者：房田文[1] 胡江凯[2] 陈德训[1] 陈峰峰[2] 

机构地区：[1]江南计算技术研究所,江苏无锡214000 [2]中国气象局数值预报中心,北京100081

出　　处：《科研信息化技术与应用》2014年第5期65-69,共5页E-science Technology & Application

基　　金：国家重点基础研究发展计划(973计划)(2014CB744100);财政部/科技部公益类行业专项(GYHY201306062)

摘　　要：分辨率的增加使得数值预报系统的运行时间大大增加,对预报业务的时效性带来了很大的挑战。以往满足时效性需求的串行程序往往因为耗时增加而成为整个系统的瓶颈,为此需要对串行程序进行并行化改造,以缩短运行时间,满足预报业务的时效性要求。根据GRAPES_MESO模式SI系统的程序结构和特点,将SI拆分为两个独立的模块,并采用不同的并行机制进行了并行化处理,试验结果表明,本文所设计的并行方法稳定可靠,加速比近线性,取得了良好的效果。Increasing resolution of numerical weather prediction （NWP） system often leads to great growth of run time, which comes to be a challenge to system efifciency. A previous serial application, which used to meet the need of run time and efifciency, often becomes a bottleneck of whole system. Therefore parallelization of these serial applications should be done in advance. In this paper, application structure and characteristics＆nbsp;of SI system in GRAPES_MESO is analyzed, we split SI into two separate applications, and parallelized by different mechanism. Test results indicate that the parallelization methods are stable and valid, and acceleration curves are approximately linear.

关 键 词：GRAPES_MESO SI 并行化 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]