Adaptive Mesh Refinement For Parallel Processors
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Adaptive Mesh Refinement For Parallel Processors
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Author : MARSHA J. BERGER
language : en
Publisher:
Release Date : 2018
Adaptive Mesh Refinement For Parallel Processors written by MARSHA J. BERGER and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Adaptive Mesh Refinement For Parallel Processors Classic Reprint
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Author : Marsha J. Berger
language : en
Publisher: Forgotten Books
Release Date : 2017-11-26
Adaptive Mesh Refinement For Parallel Processors Classic Reprint written by Marsha J. Berger and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-26 with Technology & Engineering categories.
Excerpt from Adaptive Mesh Refinement for Parallel Processors The integration strategy needs to be described in more detail, since over 75% of the cpu time is spent integrating the grids. A key point of the algorithm is that when a grid is refined by a factor r in space. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Adaptive Mesh Refinement For Parallel Processors
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Author : Courant Institute of Mathematical Sciences. Ultracomputer Research Laboratory
language : en
Publisher:
Release Date : 1987
Adaptive Mesh Refinement For Parallel Processors written by Courant Institute of Mathematical Sciences. Ultracomputer Research Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.
Adaptive Mesh Refinement For Parallel Processors
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Author : Courant Institute of Mathematical Sciences. Ultracomputer Research Laboratory
language : en
Publisher:
Release Date : 1987
Adaptive Mesh Refinement For Parallel Processors written by Courant Institute of Mathematical Sciences. Ultracomputer Research Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.
A Parallel Adaptive Mesh Refinement Algorithm
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Author : James J. Quirk
language : en
Publisher:
Release Date : 1993
A Parallel Adaptive Mesh Refinement Algorithm written by James J. Quirk and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Parallel Adaptive Mesh Refinement And Redistribution On Distributed Memory Computers
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Author :
language : en
Publisher:
Release Date : 1993
Parallel Adaptive Mesh Refinement And Redistribution On Distributed Memory Computers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
A procedure to support parallel refinement and redistribution of two dimensional unstructured finite element meshes on distributed memory computers is presented. The procedure uses the mesh topological entity hierarchy as the underlying data structures to easily support the required adjacency information. Mesh refinement is done by employing links back to the geometric representation to place new nodes on the boundary of the domain directly on the curved geometry. The refined mesh is then redistributed by an iterative heuristic based on the Leiss/Reddy 9 load balancing criteria. A fast parallel tree edge-coloring algorithm is used to pair processors having adjacent partitions and forming a tree structure as a result of Leiss/Reddy load request criteria. Excess elements are iteratively migrated from heavily loaded to less loaded processors until load balancing is achieved. The system is implemented on a massively parallel MasPar MP-1 system with a SIMD style of computation and uses message passing primitives to migrate elements during the mesh redistribution phase. Performance results of the redistribution heuristics on various test meshes are given.
Parallel Algorithms For Adaptive Mesh Refinement
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Author :
language : en
Publisher:
Release Date : 1997
Parallel Algorithms For Adaptive Mesh Refinement written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
Computational methods based on the use of adaptively constructed nonuniform meshes reduce the amount of computation and storage necessary to perform many scientific calculations. The adaptive construction of such nonuniform meshes is an important part of these methods. In this paper, the authors present a parallel algorithm for adaptive mesh refinement that is suitable for implementation on distributed-memory parallel computers. Experimental results obtained on the Intel DELTA are presented to demonstrate that, for scientific computations involving the finite element method, the algorithm exhibits scalable performance and has a small run time in comparison with other aspects of the scientific computations examined. It is also shown that the algorithm has a fast expected running time under the P-RAM computation model.
Parallel Multilevel Methods
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Author : Gerhard Zumbusch
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Parallel Multilevel Methods written by Gerhard Zumbusch and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Mathematics categories.
Main aspects of the efficient treatment of partial differential equations are discretisation, multilevel/multigrid solution and parallelisation. These distinct topics are covered from the historical background to modern developments. It is demonstrated how the ingredients can be put together to give an adaptive and parallel multilevel approach for the solution of elliptic boundary value problems. Error estimators and adaptive grid refinement techniques for ordinary and for sparse grid discretisations are presented. Different types of additive and multiplicative multilevel solvers are discussed with respect to parallel implementation and application to adaptive refined grids. Efficiency issues are treated both for the sequential multilevel methods and for the parallel version by hash table storage techniques. Finally, space-filling curve enumeration for parallel load balancing and processor cache efficiency are discussed.
Adaptive Mesh Refinement Algorithms For Parallel Unstructured Finite Element Codes
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Author : J. M. Solberg
language : en
Publisher:
Release Date : 2006
Adaptive Mesh Refinement Algorithms For Parallel Unstructured Finite Element Codes written by J. M. Solberg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
This project produced algorithms for and software implementations of adaptive mesh refinement (AMR) methods for solving practical solid and thermal mechanics problems on multiprocessor parallel computers using unstructured finite element meshes. The overall goal is to provide computational solutions that are accurate to some prescribed tolerance, and adaptivity is the correct path toward this goal. These new tools will enable analysts to conduct more reliable simulations at reduced cost, both in terms of analyst and computer time. Previous academic research in the field of adaptive mesh refinement has produced a voluminous literature focused on error estimators and demonstration problems; relatively little progress has been made on producing efficient implementations suitable for large-scale problem solving on state-of-the-art computer systems. Research issues that were considered include: effective error estimators for nonlinear structural mechanics; local meshing at irregular geometric boundaries; and constructing efficient software for parallel computing environments.
Parallel Adaptive Mesh Refinement Techniques For Plasticity Problems
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Author : William J. Barry
language : en
Publisher:
Release Date : 1997
Parallel Adaptive Mesh Refinement Techniques For Plasticity Problems written by William J. Barry and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Nonlinear theories categories.
Abstract: "Accurately modeling the nonlinear properties of materials can be computationally expensive. Parallel computing offers an attractive way for solving such problems; however, the efficient use of these systems requires the vertical integration of a number of very different software components. To investigate the practicality of solving large-scale, nonlinear problems on parallel computers, we explore the solution of two- and three-dimensional, small-strain plasticity problems. We consider a finite-element formulation of the problem with adaptive refinement of an unstructured mesh to accurately model plastic transition zones. We present a framework for the parallel implementation of such complex algorithms. This framework, using libraries from the SUMAA3d project, allows a user to build a parallel finite-element application without writing any parallel code. To demonstrate the effectiveness of this approach on widely varying parallel architectures, we present experimental results from an IBM SP parallel computer and an ATM-connected network of Sun UltraSparc workstations. The results detail the parallel performance of the computational phases of the application during the process while the material is incrementally loaded."