MGD1M, a parallel multigrid code with a fast vectorized ILU-relaxation:
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Bibliographische Detailangaben
Beteilige Person: Louter-Nool, Margreet (VerfasserIn)
Format: Buch
Sprache:Englisch
Veröffentlicht: Amsterdam 1992
Schriftenreihe:Centrum voor Wiskunde en Informatica <Amsterdam> / Afdeling Numerieke Wiskunde: Report NM 1992,22
Schlagwörter:
Abstract:Abstract: "In this paper we focus on MGD1M, a multigrid method which uses Incomplete LU-relaxation (ILU) as a smoothing process. A straightforward ILU implementation leads to non-vectorizable recursive relations. By applying an alternative ordering of the grid points, proposed by Ashcraft et al.[1], the ILU vectorizes and the overall execution time is reduced considerably. We also consider general techniques to improve the (vector) performance on the Cray Y-MP4, which are also suitable for other high-performance machines. Parallelism has been introduced by applying auto- and macrotasking. Performance results measured on a dedicated Cray Y-MP4/464 are discussed."
Umfang:14 S.
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Teilbibliothek Mathematik & Informatik, Berichte

Bestandsangaben von Teilbibliothek Mathematik &amp; Informatik, Berichte
Signatur: 0111 2001 B 6003-1992,22
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