气象2025，Vol.51Issue(10)：1226-1236,11.DOI:10.7519/j.issn.1000-0526.2025.080301
OpenMP在天气雷达基数据压缩/解压和解码中的应用
Application of OpenMP to Compression/Decompression and Decoding for Weather Radar Base Data
摘要
Abstract
In this paper,a parallel chunking processing scheme is designed for the compression/decompres-sion process by adopting OpenMP technology based on a conventional PC workstation as a benchmark.The compression and decompression time of the data can be reduced to about 1/5 and 1/8 of the single-threaded one when the number of chunks reaches 16 under a 12-core/24-threaded CPU.For the decoding process,the results of parallel processing by PPI,radial and distance banks are compared,and it is found that the parallel processing scheme on radial is optimal,for it can reduce the decoding time to about 1/8 of the single-threaded one.Through the application of the above two parallel optimization techniques,the pressure of radar base data in data transmission and preprocessing can be significantly reduced,and the data loading performance of the radar software can also be enhanced to improve the interactive experience of the radar analysis software based on base data.关键词
天气雷达/基数据/并行处理/压缩/解压/解码Key words
weather radar/base data/parallel processing/compression/decompression/decoding分类
大气科学引用本文复制引用
沃伟峰,赵昶昱,顾小丽,陶岚,王国荣..OpenMP在天气雷达基数据压缩/解压和解码中的应用[J].气象,2025,51(10):1226-1236,11.基金项目
宁波市公益性科技计划项目(2024S090)、宁波市气象科技计划项目(NBQX2024003A、NBQX2024005B)、浙江省气象局科技计划项目(2024ZD26)和浙江省"尖兵领雁+X"科技计划(2025C02258)共同资助 （2024S090）
