计算机工程与应用 ›› 2012, Vol. 48 ›› Issue (28): 61-65.

• 研究、探讨 • 上一篇    下一篇

一种等值线填充并行算法

王志斌1,万玉发1,罗  兵2,沃伟峰2   

  1. 1.中国气象局武汉暴雨研究所,武汉 430074
    2.国家气象中心,北京 100081
  • 出版日期:2012-10-01 发布日期:2012-09-29

Parallel algorithm of contour renderling

WANG Zhibin1, WAN Yufa1, LUO Bing2, WO Weifeng2   

  1. 1.Institute of Heavy Rain, China Meteorological Administration, Wuhan 430074, China
    2.National Meteorological Center, Beijing 100081, China
  • Online:2012-10-01 Published:2012-09-29

摘要: 通过获得的计算机CPU个数对要形成的网格场进行子区域划分,对各子区域用反距离加权插值法,双线形插值方法将离散气象数据格点化后形成网格数据场,对各子区域进行OPENMP的并行算法处理形成等值线填色场。实验结果表明,并行计算使系统的处理速度有较大提高。

关键词: 插值, 区域划分, 填色, 并行处理

Abstract: According to the obtained CPU number of computer, element grid field is made and sub-region is processed. For these sub-regions, with inverse distance weighted interpolation method and dual linear interpolation method, meteorological data grid is processed and data field is formed. And for those sub-regions, with parallel algorithm of OPENMP, contour rendering field is formed. Experimental results show that the weather data processing speed is greatly enhanced by parallel computing.

Key words: interpolation, region divide, renderling, parallel process