| 大地电磁三维快速松弛反演并行算法研究(英文) |
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| 引用本文： | 林昌洪,谭捍东,佟拓.大地电磁三维快速松弛反演并行算法研究(英文)[J].应用地球物理,2009,6(1):77-83. |
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| 作者姓名： | 林昌洪 谭捍东 佟拓 |
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| 作者单位： | [1]中国地质大学地质过程与矿产资源国家重点实验室,北京100083 [2]中国地质大学（北京）地球物理与信息技术学院,北京,100083 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，the Program for New Century Excellent Talents in University (NCET) |
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| 摘 要： | 为了进一步提高大地电磁三维快速松弛反演的计算效率，在深入分析大地电磁三维快速松弛反演算法的基础上，结合MPI自身的优越性，确定了并行计算的思路，实现了三维快速松弛反演的并行计算。通过理论模型合成数据和实测数据对实现的三维快速松弛反演并行程序进行了试算，分析对比了在多种情况下程序的执行效率。测试结果表明，所实现的三维快速松弛反演并行程序运行结果正确，效率提高明显。此成果在普通微机上实现，推动了大地电磁三维反演技术的实用化，可为其它地球物理三维正反演研究所借鉴。
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| 关 键 词： | 大地电磁 MPI并行程序设计 三维快速松弛反演 并行算法 |
Parallel rapid relaxation inversion of 3D magnetotelluric data |
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| Changhong Lin,Handong Tan,Tuo Tong.Parallel rapid relaxation inversion of 3D magnetotelluric data[J].Applied Geophysics,2009,6(1):77-83. |
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| Authors: | Changhong Lin Handong Tan Tuo Tong |
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| Institution: | (1) State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, 100083, China;(2) School of Geophysics and Information Technology, China University of Geosciences, Beijing, 100083, China |
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| Abstract: | We implement a parallel algorithm with the advantage of MPI (Message Passing Interface) to speed up the rapid relaxation inversion for 3D magnetotelluric data. We test the parallel rapid relaxation algorithm with synthetic and real data. The execution efficiency of the algorithm for several different situations is also compared. The results 'indicate that the parallel rapid relaxation algorithm for 3D magnetotelluric inversion, is effective. This parallel algorithm implemented on a common PC promotes the practical application of 3D magnetotelluric inversion and can be suitable for the other geophysical 3D modeling and inversion. |
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| Keywords: | Magnetotelluric MPI 3D rapid relaxation inversion parallel algorithm |
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