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R. Baxter+, M. Bowers+, P. Graham+, G. Wojcik#, D. Vaughan# and J. Mould#

+Edinburgh Parallel Computing Centre, University of Edinburgh, Edinburgh, United Kingdom
#Weidlinger Associates, Glenrothes, United Kingdom

doi:10.4203/ccp.68.9.4

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R. Baxter, M. Bowers, P. Graham, G. Wojcik, D. Vaughan, J. Mould, "An OpenMP Approach to Parallel Solvers in PZFlex", in B.H.V. Topping, (Editor), "Developments in Engineering Computational Technology", Civil-Comp Press, Edinburgh, UK, pp 241-247, 2000. doi:10.4203/ccp.68.9.4

Abstract

This paper presents the results of a recent collaborative project between EPCC at the University of Edinburgh and Scottish engineering consultants Weidlinger Associates Ltd. The aim of this work was to extend the solver capabilities, and in particular the parallel solver capabilities, of an industrial modelling code, PZFlex. Two key solvers were compared, a preconditioned conjugate gradient (KG) iterative solver and a state-of-the art direct solver (MFACT). The PCG solver was parallelised using OpenMP, the new standard for compiler directive based programming of shared memory multiprocessor systems. Our results show that OpenMP delivers parallel efficiencies of up to 80% for the PCG solver. It also offers good scalability, allowing the simple PCG algorithm to beat the complex MFACT direct solver for typical simulation runs of PZFlex.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 68 DEVELOPMENTS IN ENGINEERING COMPUTATIONAL TECHNOLOGY Edited by: B.H.V. Topping Paper IX.4 An OpenMP Approach to Parallel Solvers in PZFlex R. Baxter+, M. Bowers+, P. Graham+, G. Wojcik#, D. Vaughan# and J. Mould# +Edinburgh Parallel Computing Centre, University of Edinburgh, Edinburgh, United Kingdom #Weidlinger Associates, Glenrothes, United Kingdom doi:10.4203/ccp.68.9.4 purchase the full-text of this paper Full Bibliographic Reference for this paper R. Baxter, M. Bowers, P. Graham, G. Wojcik, D. Vaughan, J. Mould, "An OpenMP Approach to Parallel Solvers in PZFlex", in B.H.V. Topping, (Editor), "Developments in Engineering Computational Technology", Civil-Comp Press, Edinburgh, UK, pp 241-247, 2000. doi:10.4203/ccp.68.9.4 Abstract This paper presents the results of a recent collaborative project between EPCC at the University of Edinburgh and Scottish engineering consultants Weidlinger Associates Ltd. The aim of this work was to extend the solver capabilities, and in particular the parallel solver capabilities, of an industrial modelling code, PZFlex. Two key solvers were compared, a preconditioned conjugate gradient (KG) iterative solver and a state-of-the art direct solver (MFACT). The PCG solver was parallelised using OpenMP, the new standard for compiler directive based programming of shared memory multiprocessor systems. Our results show that OpenMP delivers parallel efficiencies of up to 80% for the PCG solver. It also offers good scalability, allowing the simple PCG algorithm to beat the complex MFACT direct solver for typical simulation runs of PZFlex. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £75 +P&P)
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