Title :
Solution of alternating-line processes on modern parallel computers
Author :
Espadas, David ; Prieto, Manuel ; Llorente, Ignacio M. ; Tirado, Francisco
Author_Institution :
Fac. de Ciencias Fisicas, Univ. Complutense de Madrid, Spain
Abstract :
The aim of this paper is the study of different methods for the solution of alternating-line problems, taking into account the evolution of architectural parameters on modern parallel computers, i.e. processors, memory hierarchy, and interconnection network performance. Three different kinds of solvers are studied: The Pipelined Gaussian Elimination scheme, the Matrix Transposition scheme, and the new one which is presented in this paper: the Mapping Transposition scheme, whose performance clearly betters, in many cases, that obtained by all the other methods, due to its better fitting to the characteristics of modern parallel computers. The experimental results have been obtained on a Cray T3E and on an SGI Origin 2000, up to 512 and 32 processors, respectively
Keywords :
parallel processing; performance evaluation; Cray T3E; Mapping Transposition scheme; Matrix Transposition scheme; Pipelined Gaussian Elimination scheme; SGI Origin 2000; alternating-line processes; architectural parameters; interconnection network performance; memory hierarchy; parallel computers; Anisotropic magnetoresistance; Concurrent computing; Difference equations; Differential equations; Ear; Finite difference methods; Iterative methods; Multiprocessor interconnection networks; Partial differential equations; Smoothing methods;
Conference_Titel :
Parallel Processing, 1999. Proceedings. 1999 International Conference on
Conference_Location :
Aizu-Wakamatsu City
Print_ISBN :
0-7695-0350-0
DOI :
10.1109/ICPP.1999.797406
