| 基于OpenMP多核并行算法的垂线偏差快速计算 |
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| 引用本文： | 黄炎,王庆宾,冯进凯,谭勖立.基于OpenMP多核并行算法的垂线偏差快速计算[J].大地测量与地球动力学,2019,39(10):1033-1036. |
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| 作者姓名： | 黄炎 王庆宾 冯进凯 谭勖立 |
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| 作者单位： | 信息工程大学地理空间信息学院,郑州市科学大道62号,450001;信息工程大学地理空间信息学院,郑州市科学大道62号,450001;信息工程大学地理空间信息学院,郑州市科学大道62号,450001;信息工程大学地理空间信息学院,郑州市科学大道62号,450001 |
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| 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。
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| 关 键 词： | OpenMP 超高阶重力场模型 垂线偏差 并行计算 数组升维 |
Fast Calculation of Plumb Line Deviation Based on OpenMP Multi-Core Parallel Algorithm |
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| HUANG Yan,WANG Qingbin,FENG Jinkai,TAN Xuli.Fast Calculation of Plumb Line Deviation Based on OpenMP Multi-Core Parallel Algorithm[J].Journal of Geodesy and Geodynamics,2019,39(10):1033-1036. |
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| Authors: | HUANG Yan WANG Qingbin FENG Jinkai TAN Xuli |
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| Abstract: | 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. |
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| Keywords: | OpenMP ultra-high order gravity field model plumb line deviation parallel computation array ascending dimension |
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