摘要
针对利用超高阶地球重力场模型计算大范围、高分辨率区域垂线偏差效率低的问题,提出基于OpenMP多核并行技术的数组升维和分区计算方法。实验表明,该方法计算垂线偏差的加速比最高达到5.6倍,显著提高了超高阶垂线偏差的计算效率,也为解决重力场数据处理过程中类似的快速计算问题提供了思路。
In order to solve the problem of low efficiency in calculating vertical deviation in large-scale and high-resolution regions by using the super-high-order earth gravity field model,this paper presents an array dimension-lifting and zoning methods based on OpenMP multi-core parallel technology.Experiments show that the acceleration ratio of this method to calculate vertical deviation is up to 5.6 times,which greatly improves the calculation efficiency of super-high order vertical deviation,and provides ideas for solving similar fast calculation problems in data processing of gravity field.
作者
黄炎
王庆宾
冯进凯
谭勖立
HUANG Yan;WANG Qingbin;FENG Jinkai;TAN Xuli(School of Surveying and Mapping,Information Engineering University,62 Kexue Road,Zhengzhou 450001,China)
出处
《大地测量与地球动力学》
CSCD
北大核心
2019年第10期1033-1036,共4页
Journal of Geodesy and Geodynamics
关键词
OPENMP
超高阶重力场模型
垂线偏差
并行计算
数组升维
OpenMP
ultra-high order gravity field model
plumb line deviation
parallel computation
array ascending dimension
