Parallel Seismic Propagation Simulation in Anisotropic Media by Irregular Grids Finite Difference Method on PC Cluster

2005 ◽  
pp. 762-771
Author(s):  
Weitao Sun ◽  
Jiwu Shu ◽  
Weimin Zheng
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Difference Method ◽  
Anisotropic Media ◽  
Pc Cluster ◽  
Irregular Grids ◽  
Seismic Propagation

A parallel Crank–Nicolson finite difference method for time-fractional parabolic equation

2014 ◽  
Vol 22 (4) ◽  
Author(s):  
N. H. Sweilam ◽  
H. Moharram ◽  
N. K. Abdel Moniem ◽  
S. Ahmed
Keyword(s):  
Parabolic Equation ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Difference Method ◽  
Cluster Computing ◽  
Performance Metrics ◽  
Numerical Test ◽  
Preconditioned Conjugate Gradient ◽  
Pc Cluster ◽  
Crank Nicolson

Abstract- In this paper, a parallel Crank-Nicolson finite difference method (C-N-FDM) for time-fractional parabolic equation on a distributed system using MPI is investigated. The fractional derivative is described in the Caputos sense. The resultant large system of equations is studied using preconditioned conjugate gradient method (PCG), with the implementation of cluster computing on it. The proposed approach fulfills the suitability for the implementation on Linux PC cluster through the minimization of inter-process communication. To examine the efficiency and accuracy of the proposed method, numerical test experiment using different number of nodes of the Linux PC cluster is studied. The performance metrics clearly show the benefit of using the proposed approach on the Linux PC cluster in terms of execution time reduction and speedup with respect to the sequential running in a single PC.

Divergence correction schemes in finite difference method for 3D tensor CSAMT in axial anisotropic media

2017 ◽  
Vol 48 (4) ◽  
pp. 363-373 ◽  
Author(s):  
Kunpeng Wang ◽  
Handong Tan ◽  
Zhiyong Zhang ◽  
Zhiqiang Li ◽  
Meng Cao
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Difference Method ◽  
Anisotropic Media
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