Large-Scale Simulation of Electromagnetic Wave Propagation Using Meshless Time Domain Method With Parallel Processing

Ikuno, Soichiro; Fujita, Yoshiaki; Hirokawa, Yuta; Itoh, Toshiya; Nakata, Satoshi; Kamitani, Atsushi

doi:10.1109/tmag.2013.2245410

Cited by 19 publications

(15 citation statements)

References 5 publications

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“…where C is the velocity of light and x i and x j are the positions of the nodes of the electric or magnetic field [6]. In order to investigate the influence of the time step on the numerical stability, we measured the transmission rates T R Fig.…”

Section: Numerical Evaluationmentioning

confidence: 99%

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Numerical Investigation of Electromagnetic Wave Propagation Phenomena by Three-Dimensional Meshless Time-Domain Method

Ohi

Ikuno

2015

Plasma and Fusion Research

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The finite-difference time-domain method (FDTDM) is commonly applied to time dependent electromagnetic wave propagation simulations. In the FDTDM, the nodes of electric and magnetic fields are located based on an orthogonal mesh called the Yee-lattice. However, using this method, it is difficult to express a complex shaped domain. The radial point interpolation method (RPIM) is a meshless method that can be applied to electromagnetic wave propagation simulations. The meshless time-domain method (MTDM) based on RPIM can treat complex shaped domains easily. In previous studies, the computational accuracy and numerical stability of the three-dimensional (3-D) MTDM has not been clear. The present study numerically investigates the influence of weight functions on the computational accuracy and numerical stability of the 3-D MTDM. We perform numerical simulations, the results of which show that the multi-quadratic, reciprocal multi-quadratic and quadratic spline functions should be employed for the weight functions.

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Section: Numerical Evaluationmentioning

confidence: 99%

“…The meshless time-domain method (MTDM) based on RPIM can be applied to electromagnetic wave propagation simulations [4][5][6]. In the MTDM, the governing equations are discretized using the leapfrog method, a shape function and a partial derivative of the shape function.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Electromagnetic Wave Propagation Phenomena by Three-Dimensional Meshless Time-Domain Method

Ohi

Ikuno

2015

Plasma and Fusion Research

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“…In recent years, various researches of the general purpose computing on GPU (GPGPU) have been proposed [3,4]. In previous study, we investigated the speedup of MTDM using a single GPU as well, and the parallelized method on a single GPU achieved about eight times faster than that of CPU with OpenMP [4].…”

Section: Introductionmentioning

confidence: 99%

“…In previous study, we investigated the speedup of MTDM using a single GPU as well, and the parallelized method on a single GPU achieved about eight times faster than that of CPU with OpenMP [4].…”

Section: Introductionmentioning

confidence: 99%

High Performance Computing of Meshless Time Domain Method on Multi-GPU Cluster

Ikuno

Nakata

Hirokawa

et al. 2015

J. Phys.: Conf. Ser.

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“…However, the shape of the waveguide curvature and the theoretical transmission gain of electromagnetic wave propagation are not clear [1].…”

Section: Introductionmentioning

confidence: 99%

High-Performance Computing of Electromagnetic Wave Propagation Simulation Using Meshless Time-Domain Method on Many Integrated Core Architecture

2015

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Electromagnetic wave propagation simulations using meshless time-domain method (MTDM) have been accelerated by parallelization techniques on Many Integrated Core (MIC) architecture. Numerical experiments show that, in the symmetric mode with the appropriate number of assigned nodes for each MIC, the simulation is about 9.41 times faster than that of the serial execution on CPU. In addition, in the offload mode with the explicit optimization strategy for MIC, the simulation using MTDM on MIC is about 8.16 times faster than that of the serial execution on CPU.Index Terms-Electromagnetic propagation, FDTD methods, Maxwell equations, parallel processing, waveguide bends.

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Large-Scale Simulation of Electromagnetic Wave Propagation Using Meshless Time Domain Method With Parallel Processing

Cited by 19 publications

References 5 publications

Numerical Investigation of Electromagnetic Wave Propagation Phenomena by Three-Dimensional Meshless Time-Domain Method

Numerical Investigation of Electromagnetic Wave Propagation Phenomena by Three-Dimensional Meshless Time-Domain Method

High Performance Computing of Meshless Time Domain Method on Multi-GPU Cluster

High-Performance Computing of Electromagnetic Wave Propagation Simulation Using Meshless Time-Domain Method on Many Integrated Core Architecture

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