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Author:
Publisher: Springer-Verlag
ISBN: 3322947610
Category : Technology & Engineering
Languages : de
Pages : 255
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Book Description
Author:
Publisher: Springer-Verlag
ISBN: 3322947610
Category : Technology & Engineering
Languages : de
Pages : 255
Get Book Here
Book Description
Author: Stefan Vandewalle
Publisher: Teubner Skripten zur Numerik
ISBN:
Category : Computers
Languages : en
Pages : 268
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Book Description
Wetenschap is meer dan het object dat zij bestudeert. Wetenschap is ook de weg naar de ontdekking, en bovendien, wetenschap is ook het verhaaJ van de ontdekkingsreis. -Po Thielen Focus research, Nr 10-11, juli 1991. The numerical solution of a parabolic partial differential equation is usually calcu lated by using a time-stepping method. This precludes the efficient use of parallelism and vectorization, unless the problem to be solved at each time-level is very large. This monograph investigates the use of an algorithm that overcomes the limitations of the standard schemes by calculating the solution at many time-levels, or along a continuous time-window simultaneously. The algorithm is based on waveform relazation, a highly parallel technique for solving very large systems of ordinary differential equations, and multigrid, a very fast method for solving elliptic partial differential equations. The resulting multigrid waveform relazation method is applicable to both initial boundary value and time-periodic parabolic problems. We analyse in this book theoretical and practical aspects of the multigrid waveform relaxation algorithm. Its implementation on a distributed memory message-passing computer and its computational complexity (arithmetic complexity, communication complexity and potential for vectorization) are studied. The method has been im plemented and extensively tested on a hypercube multiprocessor with vector nodes. Results of numerical experiments are given, which illustrate a severalfold performance gain when compared to parallel implementations of a variety of standard initial bound ary value and time-periodic solvers.
Author: S. Vandewalle
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
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Book Description
Author: P.W. Hemker
Publisher: Birkhäuser
ISBN: 3034885245
Category : Mathematics
Languages : en
Pages : 360
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Book Description
This volume contains a selection from the papers presented at the Fourth European Multigrid Conference, held in Amsterdam, July 6-9,1993. There were 78 registered participants from 14 different countries, and 56 presentations were given. The preceding conferences in this series were held in Cologne (1981, 1985) and in Bonn (1990). Also at the other side of the Atlantic special multigrid conferences are held regularly, at intervals of two years, always in Copper Mountain, Colorado, US. The Sixth Copper Mountain Conference on Multigrid Methods took place in April, 1993. Circumstances prevented us from putting a larger time interval between the Copper and Amsterdam meetings. The next European meeting is planned in 1996, a year later than the next Copper Meeting. When the first multigrid conference was held in 1981 there was no doubt about the usefulness of a conference dedicated specially to multigrid, because multigrid was a new and relatively unexplored subject, still in a pioneering stage, and pursued by specialists. The past twenty years have shown a rapid growth in theoretical understanding, useful applications and widespread acceptance of multi grid in the applied disciplines. Hence, one might ask whether there is still a need today for conferences specially dedicated to multigrid. The general consensus is that the answer is affirmative. New issues have arisen that are best addressed or need also be addressed from a special multigrid point of view.
Author: Michael Holst
Publisher:
ISBN:
Category : Computer architecture
Languages : en
Pages : 38
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Book Description
We examine the effect of the step size on the convergence rates of multigrid, and present results of experiments on two parallel architectures: a four processor Cray Y-MP and a fourteen processor Alliant FX/2800. Our results demonstrate that multigrid can achieve very high parallel efficiency on coarse-grained shared memory machines, and that explicit methods are not likely to be competitive with multigrid based implicit methods on such machines."
Author: Alfio Borzi
Publisher: SIAM
ISBN: 1611972043
Category : Mathematics
Languages : en
Pages : 295
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Book Description
This book provides a bridge between continuous optimization and PDE modelling and focuses on the numerical solution of the corresponding problems. Intended for graduate students in PDE-constrained optimization, it is also suitable as an introduction for researchers in scientific computing or optimization.
Author: David E. Keyes
Publisher: SIAM
ISBN: 089871348X
Category : Mathematics
Languages : en
Pages : 330
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Book Description
This volume is one attempt to provide cross-disciplinary communication between heterogeneous computational groups developing solutions to problems of parallelization.
Author: Ulrich Trottenberg
Publisher: Academic Press
ISBN: 9780127010700
Category : Mathematics
Languages : en
Pages : 652
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Book Description
Mathematics of Computing -- Numerical Analysis.
Author: Institute for Computer Applications in Science and Engineering
Publisher:
ISBN:
Category : Differential equations, Elliptic
Languages : en
Pages : 20
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Book Description
Author: Craig C. Douglas
Publisher: SIAM
ISBN: 9780898718171
Category : Technology & Engineering
Languages : en
Pages : 153
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Book Description
This compact yet thorough tutorial is the perfect introduction to the basic concepts of solving partial differential equations (PDEs) using parallel numerical methods. In just eight short chapters, the authors provide readers with enough basic knowledge of PDEs, discretization methods, solution techniques, parallel computers, parallel programming, and the run-time behavior of parallel algorithms to allow them to understand, develop, and implement parallel PDE solvers. Examples throughout the book are intentionally kept simple so that the parallelization strategies are not dominated by technical details.
