Application of a Sparsity Pattern and Region Clustering for Near Field Sparse Approximate Inverse Preconditioners in Method of Moments Simulations
Joint Authors
Moreno, Javier
Delgado, Carlos
Cátedra, Felipe
Source
International Journal of Antennas and Propagation
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-10-31
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
This document presents a technique for the generation of Sparse Inverse Preconditioners based on the near field coupling matrices of Method of Moments simulations where the geometry has been partitioned in terms of regions.
A distance parameter is used to determine the sparsity pattern of the preconditioner.
The rows of the preconditioner are computed in groups at a time, according to the number of unknowns contained in each region of the geometry.
Two filtering thresholds allow considering only the coupling terms with a significant weight for a faster generation of the preconditioner and storing only the most significant preconditioner coefficients in order to decrease the memory required.
The generation of the preconditioner involves the computation of as many independent linear least square problems as the number of regions in which the geometry is partitioned, resulting in very good scalability properties regarding its parallelization.
American Psychological Association (APA)
Delgado, Carlos& Moreno, Javier& Cátedra, Felipe. 2017. Application of a Sparsity Pattern and Region Clustering for Near Field Sparse Approximate Inverse Preconditioners in Method of Moments Simulations. International Journal of Antennas and Propagation،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1159514
Modern Language Association (MLA)
Delgado, Carlos…[et al.]. Application of a Sparsity Pattern and Region Clustering for Near Field Sparse Approximate Inverse Preconditioners in Method of Moments Simulations. International Journal of Antennas and Propagation No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1159514
American Medical Association (AMA)
Delgado, Carlos& Moreno, Javier& Cátedra, Felipe. Application of a Sparsity Pattern and Region Clustering for Near Field Sparse Approximate Inverse Preconditioners in Method of Moments Simulations. International Journal of Antennas and Propagation. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1159514
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1159514