banded linear systems;
iterative schemes;
numerical linear algebra;
parallel numerical algorithms;
preconditioners;
ScaLAPACK;
SPIKE;
D O I:
10.1016/j.parco.2005.07.005
中图分类号:
TP301 [理论、方法];
学科分类号:
081202 ;
摘要:
This paper describes an efficient and robust hybrid parallel solver "the SPIKE algorithm" for narrow-banded linear systems. Two versions of SPIKE with their built-in-options are described in detail: the Recursive SPIKE version for handling non-diagonally dominant systems and the Truncated SPIKE version for diagonally dominant ones. These SPIKE schemes can be used either as direct solvers, or as preconditioners for outer iterative schemes. Both versions are faster than the direct solvers in ScaLAPACK on parallel computing platforms, and quite competitive in terms of achieved accuracy For handling systems that are dense within the band. (c) 2005 Elsevier B.V. All rights reserved.
机构:
King Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 23955, Saudi Arabia
Univ Pavia, Dipartimento Matemat F Casorati, Via Ferrata 5, I-27100 Pavia, ItalyKing Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 23955, Saudi Arabia
Boffi, Daniele
Credali, Fabio
论文数: 0引用数: 0
h-index: 0
机构:
CNR, Ist Matemat Applicata & Tecnol Informat E Magenes, via Ferrata 5, I-27100 Pavia, ItalyKing Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 23955, Saudi Arabia
Credali, Fabio
Gastaldi, Lucia
论文数: 0引用数: 0
h-index: 0
机构:
Univ Brescia, Dipartimento Ingn Civile Architettura Terr Ambient, via Branze 43, I-25123 Brescia, ItalyKing Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 23955, Saudi Arabia
Gastaldi, Lucia
Scacchi, Simone
论文数: 0引用数: 0
h-index: 0
机构:
Univ Milan, Dipartimento Matemat F Enriques, Via Saldini 50, I-20133 Milan, ItalyKing Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 23955, Saudi Arabia
机构:
Penn State Univ, Dept Comp Sci & Engn, Pond Lab 308, University Pk, PA 16802 USAPenn State Univ, Dept Comp Sci & Engn, Pond Lab 308, University Pk, PA 16802 USA
Raghavan, P
Teranishi, K
论文数: 0引用数: 0
h-index: 0
机构:Penn State Univ, Dept Comp Sci & Engn, Pond Lab 308, University Pk, PA 16802 USA
Teranishi, K
Ng, EG
论文数: 0引用数: 0
h-index: 0
机构:Penn State Univ, Dept Comp Sci & Engn, Pond Lab 308, University Pk, PA 16802 USA
机构:
Univ Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, France
Univ Paris Est Creteil, Univ Gustave Eiffel, MSME, CNRS UMR 8208, F-77454 Marne la Vallee, FranceUniv Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, France
El Ouafa, Simon
Vincent, Stephane
论文数: 0引用数: 0
h-index: 0
机构:
Univ Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, FranceUniv Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, France
Vincent, Stephane
Le Chenadec, Vincent
论文数: 0引用数: 0
h-index: 0
机构:
Univ Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, FranceUniv Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, France
Le Chenadec, Vincent
Trouette, Benoit
论文数: 0引用数: 0
h-index: 0
机构:
Univ Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, FranceUniv Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, France
机构:
King Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 23955, Saudi Arabia
Univ Pavia, Dipartimento Matemat F Casorati, Via Ferrata 5, I-27100 Pavia, ItalyKing Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 23955, Saudi Arabia
Boffi, Daniele
Credali, Fabio
论文数: 0引用数: 0
h-index: 0
机构:
CNR, Ist Matemat Applicata & Tecnol Informat E Magenes, via Ferrata 5, I-27100 Pavia, ItalyKing Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 23955, Saudi Arabia
Credali, Fabio
Gastaldi, Lucia
论文数: 0引用数: 0
h-index: 0
机构:
Univ Brescia, Dipartimento Ingn Civile Architettura Terr Ambient, via Branze 43, I-25123 Brescia, ItalyKing Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 23955, Saudi Arabia
Gastaldi, Lucia
Scacchi, Simone
论文数: 0引用数: 0
h-index: 0
机构:
Univ Milan, Dipartimento Matemat F Enriques, Via Saldini 50, I-20133 Milan, ItalyKing Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 23955, Saudi Arabia
机构:
Penn State Univ, Dept Comp Sci & Engn, Pond Lab 308, University Pk, PA 16802 USAPenn State Univ, Dept Comp Sci & Engn, Pond Lab 308, University Pk, PA 16802 USA
Raghavan, P
Teranishi, K
论文数: 0引用数: 0
h-index: 0
机构:Penn State Univ, Dept Comp Sci & Engn, Pond Lab 308, University Pk, PA 16802 USA
Teranishi, K
Ng, EG
论文数: 0引用数: 0
h-index: 0
机构:Penn State Univ, Dept Comp Sci & Engn, Pond Lab 308, University Pk, PA 16802 USA
机构:
Univ Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, France
Univ Paris Est Creteil, Univ Gustave Eiffel, MSME, CNRS UMR 8208, F-77454 Marne la Vallee, FranceUniv Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, France
El Ouafa, Simon
Vincent, Stephane
论文数: 0引用数: 0
h-index: 0
机构:
Univ Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, FranceUniv Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, France
Vincent, Stephane
Le Chenadec, Vincent
论文数: 0引用数: 0
h-index: 0
机构:
Univ Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, FranceUniv Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, France
Le Chenadec, Vincent
Trouette, Benoit
论文数: 0引用数: 0
h-index: 0
机构:
Univ Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, FranceUniv Gustave Eiffel, Lab MSME, CNRS UMR 8208, 5 Blvd Descartes, F-77454 Marne la Vallee, France