Parallel simulation of spiral waves in reacting and diffusing media

Ortigosa, E. M. and Romero, L. F. and Ramos, J. I.: Parallel simulation of spiral waves in reacting and diffusing media. Acta cybernetica, (15) 2. pp. 173-184. (2001)

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The propagation of the spiral waves in excitable media is governed by the non-linear reaction-diffusion equations. In order to solve these equations in the three-dimensional space, two methods have been implemented and parallelized on both shared- and distributed-memory computers. These implicit methods linearize the equations in time, following alternate directions in the first case (ADI), and using the Crank-Nicolson discretization in the second case. A linear system of algebraic equations has been obtained and it has been solved using direct methods in the ADI technique, while in the second case has been used the conjugated gradient (CG) method. An optimized version of the CG algorithm is presented here, in which the largest efficiency has been obtained.

Item Type: Article
Event Title: Conference for PhD Students in Computer Science, 2., 2000, Szeged
Journal or Publication Title: Acta cybernetica
Date: 2001
Volume: 15
Number: 2
Page Range: pp. 173-184
ISSN: 0324-721X
Language: angol
Uncontrolled Keywords: Természettudomány, Informatika
Additional Information: Bibliogr.: p. 183-184.; Abstract
Date Deposited: 2016. Oct. 15. 12:25
Last Modified: 2018. Jun. 05. 15:42

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