Abstract: "This paper will concentrate on contributions of CWI to the development of parallel Runge-Kutta (RK) methods. We shall describe two approaches to construct such methods. In both approaches, a conventional implicit RK method is used as a corrector equation whose solution is approximate...

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Hauptverfasser:	Houwen, Pieter J. van der (VerfasserIn), Sommeijer, Ben P. ca. 20. Jh (VerfasserIn)
Format:	Buch
Sprache:	English
Veröffentlicht:	Amsterdam 1996
Schriftenreihe:	Centrum voor Wiskunde en Informatica <Amsterdam> / Afdeling Numerieke Wiskunde: Report NM 1996,8
Schlagworte:	Centrum voor Wiskunde en Informatica (Amsterdam, Netherlands) > Research Itération (mathématiques) Parallélisme (informatique) Runge-Kutta, Méthode de Iterative methods (Mathematics) Parallel processing (Electronic computers) Runge-Kutta formulas
Zusammenfassung:	Abstract: "This paper will concentrate on contributions of CWI to the development of parallel Runge-Kutta (RK) methods. We shall describe two approaches to construct such methods. In both approaches, a conventional implicit RK method is used as a corrector equation whose solution is approximated by an iterative method. In the first approach, the iteration method uses a fixed number of iterations without solving the corrector. Assuming that a one-step predictor is used, this approach again results in an RK method, however, an RK method possessing a lot of intrinsic parallelism. In the second approach, the corrector is solved by modified Newton iteration and the linear systems arising in each Newton iteration are solved by a parallel iteration process which is tuned to the special form of these linear systems. Furthermore, we apply the parallel iteration process in a step-parallel fashion which further enhances the amount of parallelism. Finally, the application of parallel RK methods within the framework of waveform relaxation is briefly discussed."
Beschreibung:	18 S.