Three-Dimensional Induced Polarization Parallel Inversion Using Nonlinear Conjugate Gradients Method
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-06
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Four kinds of array of induced polarization (IP) methods (surface, borehole-surface, surface-borehole, and borehole-borehole) are widely used in resource exploration.
However, due to the presence of large amounts of the sources, it will take much time to complete the inversion.
In the paper, a new parallel algorithm is described which uses message passing interface (MPI) and graphics processing unit (GPU) to accelerate 3D inversion of these four methods.
The forward finite differential equation is solved by ILU0 preconditioner and the conjugate gradient (CG) solver.
The inverse problem is solved by nonlinear conjugate gradients (NLCG) iteration which is used to calculate one forward and two “pseudo-forward” modelings and update the direction, space, and model in turn.
Because each source is independent in forward and “pseudo-forward” modelings, multiprocess modes are opened by calling MPI library.
The iterative matrix solver within CULA is called in each process.
Some tables and synthetic data examples illustrate that this parallel inversion algorithm is effective.
Furthermore, we demonstrate that the joint inversion of surface and borehole data produces resistivity and chargeability results are superior to those obtained from inversions of individual surface data.
American Psychological Association (APA)
Ma, Huan& Tan, Handong& Guo, Yue. 2015. Three-Dimensional Induced Polarization Parallel Inversion Using Nonlinear Conjugate Gradients Method. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-12.
https://search.emarefa.net/detail/BIM-1073893
Modern Language Association (MLA)
Ma, Huan…[et al.]. Three-Dimensional Induced Polarization Parallel Inversion Using Nonlinear Conjugate Gradients Method. Mathematical Problems in Engineering No. 2015 (2015), pp.1-12.
https://search.emarefa.net/detail/BIM-1073893
American Medical Association (AMA)
Ma, Huan& Tan, Handong& Guo, Yue. Three-Dimensional Induced Polarization Parallel Inversion Using Nonlinear Conjugate Gradients Method. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-12.
https://search.emarefa.net/detail/BIM-1073893
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073893