Optimization of direct domain decomposition methods
Computer Assisted Methods in Engineering and Science, 2023 In this paper, the problem of parallelizing the finite element method for distributed memory computers using domain decomposition methods is addressed.
Yves Escaig, Gilbert Touzot
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Reduced-Order Modelling with Domain Decomposition Applied to Multi-Group Neutron Transport
Energies, 2021 Solving the neutron transport equations is a demanding computational challenge. This paper combines reduced-order modelling with domain decomposition to develop an approach that can tackle such problems.
Toby R. F. Phillips +4 more
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Nonlinear Preconditioning: How to use a Nonlinear Schwarz Method to Precondition Newton's Method [PDF]
, 2015 For linear problems, domain decomposition methods can be used directly as iterative solvers, but also as preconditioners for Krylov methods. In practice, Krylov acceleration is almost always used, since the Krylov method finds a much better residual ...
Dolean, V. +4 more
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A Detection Method of Magnetic Anomaly Signal in Offshore Waters
水下无人系统学报, 2023 Magnetic anomaly signal detection has broad application prospects in offshore defense, which is an urgent problem for realizing remote and long-term monitoring. In this paper, an underwater magnetic anomaly detection model is proposed, and wavelet domain
Defeng DU +3 more
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The divide-and-conquer framework: a suitable setting for domain decomposition methods of the future
Geofísica Internacional, 2020 Este artículo surgió a partir de experimentos numéricos, en los cuales ciertos algoritmos, que en algunos textos científicos (DVS-BDDM) produjeron aceleración (o speedups) muchas veces mayores a la cantidad de procesadores utilizados (existen casos ya ...
Ismael Herrera Revilla +2 more
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Space-time domain decomposition for advection-diffusion problems in mixed formulations [PDF]
, 2016 This paper is concerned with the numerical solution of porous-media flow and transport problems , i. e. heterogeneous, advection-diffusion problems. Its aim is to investigate numerical schemes for these problems in which different time steps can be used ...
Hoang, Thi-Thao-Phuong +3 more
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Adaptive Complex Variational Mode Decomposition for Micro-Motion Signal Processing Applications
Sensors, 2021 In order to suppress the strong clutter component and separate the effective fretting component from narrow-band radar echo, a method based on complex variational mode decomposition (CVMD) is proposed in this paper.
Saiqiang Xia +5 more
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A balanced watershed decomposition method for rain-on-grid simulations in HEC-RAS
Journal of Hydroinformatics, 2022 Rain-on-grid simulations for the modeling of 2D unsteady flows in response to precipitation input are implemented in Hydrologic Engineering Center's River Analysis System (HEC-RAS) software by means of a finite volume method and a sparse parallel linear ...
Sleimane Hariri +3 more
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Domain decomposition PCG methods for serial and parallel processing
Computer Assisted Methods in Engineering and Science, 2023 In this paper two domain decomposition formulations are presented in conjunction with the preconditioned conjugate gradient method (PCG) for the solution of large-scale problems in solid and structural mechanics.
M. Papadrakakis, S. Bitzarakis
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Novel Watermarking Methods Based on Frequency Domain and Singular Value Decomposition
Communications, 2013 Nowadays, the copyright laws protecting the digital content are getting quite common. One of the important things is to protect the original or compressed images against illegal use. Frequency domain watermarking methods are used in most cases in today's
Petr Cika, Martin Zukal
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