Please use this identifier to cite or link to this item:
|Title:||Memory efficient algorithm for solving the inverse gravimetry problem of finding several boundary surfaces in multilayered medium|
|Authors:||Akimova, E. N.|
Misilov, V. E.
Sultanov, M. A.
Turebekov, R. Z.
|Publisher:||American Institute of Physics Inc.|
|Citation:||Memory efficient algorithm for solving the inverse gravimetry problem of finding several boundary surfaces in multilayered medium / E. N. Akimova, V. E. Misilov, M. A. Sultanov, R. Z. Turebekov. — DOI 10.1063/1.5136168 // AIP Conference Proceedings. — 2019. — Iss. 2183. — 70006.|
|Abstract:||For solving the inverse gravimetry problem of finding several boundary surfaces in a multilayered medium, the parallel algorithm was constructed and implemented for multicore CPU using OpenMP technology. The algorithm is based on the modified nonlinear conjugate gradient method with weighting factors previously proposed by authors. To reduce the memory requirements and computation time, the modification was constructed on the basis of utilizing the Toeplitz-block-Toeplitz structure of the Jacobian matrix of the integral operator. The model problem of reconstructing three surfaces using the quasi-real gravitational data was solved on a large grid. It was shown that the proposed implementation reduces the computation time by 80% in comparison with the earlier algorithm based on calculating the entire matrix. The parallel algorithm shows good scaling of 94% on 8-core processor. © 2019 Author(s).|
NONLINEAR GRADIENT METHODS
|metadata.dc.description.sponsorship:||Ministry of Education and Science of the Republic of Kazakhstan: AP 05133873|
This work was financially supported by the Ministry of Education and Science of the Republic of Kazakhstan (project AP 05133873).
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
Files in This Item:
|10.1063-1.5136168.pdf||709,45 kB||Adobe PDF||View/Open|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.