Bibliographic Metadata

Title
Algebraic multigrid solver on clusters of CPUs and GPUs
AuthorNeic, Aurel ; Liebmann, Manfred ; Haase, Gundolf ; Plank, Gernot
Published in
Lecture notes in computer science, Berlin [u.a.] : Springer, 1973 -, page 389-398
Edition
Accepted version
LanguageEnglish
Document typeArticle in a collected edition
Keywords (EN)Algebraic Multigrid / Parallel Algorithms / GPU programming
Keywords (GND)AMG <Mathematik> / Grafikprozessor / Supercomputer / Zentraleinheit / Online-Publikation
ISBN978-3-642-54774-4
ISSN0302-9743
URNurn:nbn:at:at-ubg:3-579 Persistent Identifier (URN)
DOIdoi:10.1007/978-3-642-28145-7_38 
Restriction-Information
 The work is publicly available
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Algebraic multigrid solver on clusters of CPUs and GPUs [1.28 mb]
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Abstract (English)

Solvers for elliptic partial differential equations are needed in a wide area of scientific applications. We will present a highly parallel CPU and GPU implementation of a conjugate gradient solver with an algebraic multigrid pre-conditioner in a package called Parallel Toolbox. The solvers operates on fully unstructured discretizations of the PDE. The algorithmic specialities are investigated with respect to many-core architectures and the code is applied to one current application. Benchmark results of computations on clusters of CPUs and GPUs will be presented. They will show that a linear equation system with 25million unknowns can be solved in about 1 second.

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