Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal for Multiscale Computational Engineering
Импакт фактор: 1.016 5-летний Импакт фактор: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN Печать: 1543-1649
ISSN Онлайн: 1940-4352

Выпуски:
Том 17, 2019 Том 16, 2018 Том 15, 2017 Том 14, 2016 Том 13, 2015 Том 12, 2014 Том 11, 2013 Том 10, 2012 Том 9, 2011 Том 8, 2010 Том 7, 2009 Том 6, 2008 Том 5, 2007 Том 4, 2006 Том 3, 2005 Том 2, 2004 Том 1, 2003

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.v5.i1.50
pages 39-46

Three-dimensional Bursting and Parallel Computing

S. Tabik
Depto. de Arquitectura de Computadores y Electrónica, Universidad de Almería, 04120 Almería, Spain
L. F. Romero
I-320-D, E. T. S. Ingenieros Industriales, Universidad de Málaga, 29013 Málaga, Spain
E. M. Garzon
Depto. de Arquitectura de Computadores y Electrónica, Universidad de Almería, 04120 Almería, Spain
Juan I. Ramos
Escuela de Ingenierias Industriales, Universidad de Malaga, Dr. Ortiz Ramos, s/n 29071 Malaga, Spain

Краткое описание

This work presents a mathematical model and its parallel implementation via two parallel paradigms for the simulation of three-dimensional bursting phenomena. The mathematical model consists of four nonlinearly coupled partial differential equations and includes fast and slow subsystems. The differential equations have been discretized by means of a linearly implicit finite difference method in equally spaced grids. The resulting system of equations at each time level has been solved by means of an optimized preconditioned conjugate gradient method. The proposed mathematical model has been implemented via (i) a message passing paradigm based on the standard MPI and (ii) a shared address space paradigm based on SPMD OpenMP. The two implementations have been evaluated on three current parallel architectures, namely, a cluster of dual Xeon, a SGI Altix 3700 Bx2 system based on Itanium, and a Sun Fire E15K. It is shown that for the conditions reported here, the nonlinear dynamics of the three-dimensional bursting phenomena exhibits four different regimes, charachterized by asynchronous, synchronous, and then asynchronous oscillations before a quiescent state is reached. In addition, the fast system reaches steady state in much less time than the slow variables. It is also shown that both parallel pradigms lead to similar scalability on all considered platforms.


Articles with similar content:

INTEGRAL TRANSFORMS FOR CONVECTION-DIFFUSION IN MULTISCALE COMPLEX DOMAINS
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2015, issue
Diego C. Knupp, Carolina Palma Naveira-Cotta, Renato M. Cotta
A Procedure for Modeling Multibody Systems Using Subsystem Models
International Journal for Multiscale Computational Engineering, Vol.1, 2003, issue 2&3
John McPhee, Chad Schmitke
REMARKS ON STOCHASTIC PROPERTIES OF MATERIALS THROUGH FINITE DEFORMATIONS
International Journal for Multiscale Computational Engineering, Vol.13, 2015, issue 4
Roger Ghanem, Christian Soize
Factorizing about the Imaginary Axis Matrices Which Do Not Satisfy the Coercitivity
Journal of Automation and Information Sciences, Vol.28, 1996, issue 5-6
Vladimir B. Larin
APPLICATION OF SPATIAL AND ANGULAR DOMAIN BASED PARALLELISM TO A DISCRETE ORDINATES FORMULATION WITH UNSTRUCTURED SPATIAL DISCRETIZATION
ICHMT DIGITAL LIBRARY ONLINE, Vol.6, 1997, issue
Shawn P. Burns