Abstract
In this paper, a 2.5-D controlled source audio-frequency magnetotelluric (CSAMT) reversed parallel method based on multi-core CPU is achieved, aiming to the low efficiency of the large-scale computation in geophysical exploration. This parallel algorithm allocates the different waves to each thread of cores under the coarse-gained mode. The master thread deal with all parallel tasks and other slave threads compute the electromagnetic field values of each wave in parallel Fork-join model. The experiments demonstrate that our parallel algorithm can not only acquire the effective data accuracy, but also obtain about three times than the serial version.
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References
Sutarno, D., Fatrio, I.: Robust M-estimation of CSAMT impedance functions. Indonesian J. Phys. 18(3) (2015)
Wang, R., Yin, C., Wang, M., et al.: Laterally constrained inversion for CSAMT data interpretation. J. Appl. Geophys. 121, 63–70 (2015)
Da, L., Xiaoping, W., Qingyun, D., et al.: Modeling and analysis of CSAMT field source effect and its characteristics. J. Geophys. Eng. 13(1), 49 (2016)
Yi, H., Xueming, S., Jianke, F., et al.: Review on parallel computing and its application in exploration geophysics. Progress Geophys. 25(2), 642–649 (2010)
Wang, R., Yin, C., Wang, M., et al.: Laterally constrained inversion for CSAMT data interpretation. J. Appl. Geophys. 121, 63–70 (2015)
Coggon, J.H.: Electromagnetic and electrical modeling by the finite-element method. Geophysics 36(2), 132–155 (1971)
Unsworth, J.M., Bryan, J.T., Alan, D.C.: Electromagnetic induction by a finite electric dipole source over a 2-D earth. Geophysics 58(2), 198–214 (1993)
Stoyer, C.H., Greenfield, R.J.: Numerical solutions of the response of a two-dimensional earth to an oscillating magnetic dipole source. Geophysics 41(3), 519–530 (1976)
Mao, X., Bao, G.: A new method for 2.5-dimensional resistivity forward modelling. J. Central South Univ. Technol. 28(4), 307–310 (1997)
Qingyun, D., Miaoyue, W.: 2.5-D finite-element CSAMT numerical inversion. Oil. Geophys. Prospect. 41(1), 100–106 (2006)
Changhong, L., Handong, T., Tuo, T.: Parallel rapid relaxation inversion of 3D magnetotelluric data. Appl. Geophys. 6(1), 77–83 (2009)
Li Yan, H., Xiangyun, Y.W., et al.: A study on parallel computation for 3D magnetotelluric modeling using the staggered-grid finite difference method. Chinese J. Geophys. 55(12), 4036–4043 (2012)
Handong, T., Tuo, T., Changhong, L.: The parallel 3D magnetotelluric forward modeling algorithm. Appl. Geophys. 3(4), 197–202 (2006)
Cole, K.S., Cole, R.H.: Dispersion and absorption in dielectrics I. Alternating current characteristics. J. Chem. Phys. 9(4), 341–351 (1941)
Jermain, C.L., Rowlands, G.E., Buhrman, R.A., et al.: GPU-accelerated micromagnetic simulations using cloud computing. J. Magn. Magn. Mater. 401, 320–322 (2016)
Acknowledgements
The authors gratefully acknowledge the financial supports for this research from the National Natural Science Foundation of China (51409117, 61272208, 61572228), Jilin Province Department of Education “Thirteen Five” scientific and technological research projects [2016] No. 432, Fundamental Research Funds for the Central Universities Special (JCKY-QKJC47, JCKY-QKJC49).
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He, L., Bai, H., Wang, J., Jiang, Y., Li, T. (2017). Coarse-Grained 2.5-D CSAMT Parallel Inversion Method Based on Multi-core CPU. In: Park, J., Pan, Y., Yi, G., Loia, V. (eds) Advances in Computer Science and Ubiquitous Computing. UCAWSN CUTE CSA 2016 2016 2016. Lecture Notes in Electrical Engineering, vol 421. Springer, Singapore. https://doi.org/10.1007/978-981-10-3023-9_70
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DOI: https://doi.org/10.1007/978-981-10-3023-9_70
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