Parallel Implementation of Mlfma for Homogeneous Objects With Various Material Properties

Ergül, Özgür

doi:10.2528/pier11092501

Cited by 24 publications

(16 citation statements)

References 36 publications

(48 reference statements)

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“…It is worth to note that the highresolution standard FDTD of the whole area (entitled FDTD), which is used as the reference, modeled the completely computational domain. To overcome the memory limit of a serial processor, the parallel implementation is used [27][28][29][30]. The convolution PML is used to truncate the computational domain in this work [31][32][33].…”

Section: Numerical Resultsmentioning

confidence: 99%

A Simple Local Approximation FDTD Model of Short Apertures With a Finite Thickness

Xiong¹,

Chen²,

Mao³

et al. 2012

PIER

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Abstract-This paper brings forward a simple local approximation finite-difference time-domain (FDTD) method for the analysis of short apertures with a finite thickness. By applying the equivalence principle together with a simple local approximation, the varying field distribution is accurately derived. The updating equations for the slot field can be derived by casting the field distributions into the contour paths containing the apertures. The method has been applied to two problems and the results are compared with the high-resolution standard FDTD simulation results and the measurement results. The accuracy of the proposed method is verified from the comparison of both the field distribution and the time-domain and frequency-domain slot coupling results. It is demonstrated that the local approximation is highly efficient and timesaving, and the present method is stable, numerically and computationally efficient.

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Section: Numerical Resultsmentioning

confidence: 99%

A Simple Local Approximation FDTD Model of Short Apertures With a Finite Thickness

Xiong¹,

Chen²,

Mao³

et al. 2012

PIER

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“…Previous parallel algorithms (e.g., parallel FDTD [10,11], parallel direct solver [12] and parallel MLFMM [13,14]) were mainly implemented on CPU clusters. Due to the high performance/cost ratio and the fast performance growth of GPUs, GPU clusters are becoming more and more popular.…”

Section: Introductionmentioning

confidence: 99%

Parallel Shooting and Bouncing Ray Method on Gpu Clusters for Analysis of Electromagnetic Scattering

Tao¹,

Lin²

2013

PIER

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Abstract-This paper proposes an efficient parallel shooting and bouncing ray (SBR) method on the graphics processing unit (GPU) cluster for solving the electromagnetic scattering problems. At each incident direction, the parallel SBR method partitions the virtual aperture into sub-apertures, and distributes the computational process of each sub-aperture over GPU nodes. As ray tubes in the virtual aperture do not have the same computational time, the parallel efficiency highly depends on how to partition the virtual aperture. This paper addresses this issue by a dynamic partitioning scheme according to the computational time at the previous angle, which can achieve excellent load balance. Numerical examples are presented to demonstrate the accuracy, high parallel efficiency, good scalability and versatility of the proposed method.

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“…The multilevel fast multipole algorithm is a powerful tool for accelerating the matrix-vector multiplication and it is shown to have ability to solve electrically large and complex problems [5][6][7]. Through employing the multilevel fast multipole algorithm (MLFMA), the capability of FE-BI has been improved greatly [8].…”

Section: Introductionmentioning

confidence: 99%

Domain Decomposition Fe-Bi-Mlfma Method for Scattering by 3d Inhomogeneous Objects

Gao¹,

Yang²,

Sheng³

2013

PIER

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Abstract-The hybrid finite element-boundary integral-multilevel fast multipole algorithm (FE-BI-MLFMA) is a powerful method for calculating scattering by inhomogeneous objects. However, the conventional FE-BI-MLFMA often suffers from iterative convergence problems. A non-overlapping domain decomposition method (DDM) is applied to FE-BI-MLFMA to speed up the iterative convergence. Furthermore, a preconditioner based on absorbing boundary condition and symmetric successive over relaxation (ABC-SSOR) is constructed to further accelerate convergence of the DDM-FE-BI-MLFMA. Numerical experiments demonstrate the efficiency of the proposed preconditioned DDM-FE-BI-MLFMA.

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Parallel Implementation of Mlfma for Homogeneous Objects With Various Material Properties

Cited by 24 publications

References 36 publications

A Simple Local Approximation FDTD Model of Short Apertures With a Finite Thickness

A Simple Local Approximation FDTD Model of Short Apertures With a Finite Thickness

Parallel Shooting and Bouncing Ray Method on Gpu Clusters for Analysis of Electromagnetic Scattering

Domain Decomposition Fe-Bi-Mlfma Method for Scattering by 3d Inhomogeneous Objects

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