Journal of Jilin University Science Edition

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Satellite Cloud Drift Winds Parallel Inversion Algorithm Based on Multicore CPU

WANG Changshuai1,2, HE Lili1,2, OUYANG Dantong1,2, BAI Hongtao3   

  1. 1. College of Computer Science and Technology, Jilin University, Changchun 130012, China; 2. Key Laboratory ofSymbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun 130012, China;[JP]3. Center for Computer Fundamental Education, Jilin University, Changchun 130012, China
  • Received:2015-05-25 Online:2016-05-26 Published:2016-05-20
  • Contact: HE Lili E-mail:helili@jlu.edu.cn

Abstract:

In view of the satellite cloud drift winds inversion has the characteristics of large scale, intensive computing and timeconsuming, conventional cloud drift winds serial inversion algorithm is very difficult to break through the bottleneck of efficiency. According to the characteristics of relatively independence between each wind vector calculation, we put forward a parallel inversion algorithm based on the OpenMP framework. Through the analysis of the inversion results of the multi group cloud data in the multi core CPU, the results show that the proposed algorithm can significantly improve the inversion efficiency of cloud.

Key words: correlation coefficient method, cloud drift wind, OpenMP, parallel, cloud vector

CLC Number: 

  • TP311