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T.T. Abdel-Fattah+, M.T. Abdel-Fattah* and H.A. Ibrahim#

+Housing and Building Research Centre, Cairo, Egypt
*University of Western Ontario, Ontario, Canada
#The Petroleum Consultation Company, Cairo, Egypt

doi:10.4203/ccp.56.12.1

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T.T. Abdel-Fattah, M.T. Abdel-Fattah, H.A. Ibrahim, "A Modified Large Capacity Frontal Solver for Structural Analysis", in B.H.V. Topping, (Editor), "Advances in Civil and Structural Engineering Computing for Practice", Civil-Comp Press, Edinburgh, UK, pp 437-442, 1998. doi:10.4203/ccp.56.12.1

Abstract

In this paper, an improved frontal solver is presented, with modifications directed mainly to solving huge meshes that may have a variable number of degrees of freedom per node. By the efficient use of both core memory and disc storage, the solver can handle almost unlimited size of problems depending mainly on the disc free space. A dynamic memory management scheme is employed. For huge meshes, the program extends the available core memory by spilling the extra data to disc files. Main disc files created during solution are kept in the minimum possible size. A buffer is used to optimise disk operations during back-substitution. Two selected examples are compared with two general purpose finite element programs.

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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: 56 ADVANCES IN CIVIL AND STRUCTURAL ENGINEERING COMPUTING FOR PRACTICE Edited by: B.H.V. Topping Paper XII.1 A Modified Large Capacity Frontal Solver for Structural Analysis T.T. Abdel-Fattah+, M.T. Abdel-Fattah* and H.A. Ibrahim# +Housing and Building Research Centre, Cairo, Egypt *University of Western Ontario, Ontario, Canada #The Petroleum Consultation Company, Cairo, Egypt doi:10.4203/ccp.56.12.1 purchase the full-text of this paper Full Bibliographic Reference for this paper T.T. Abdel-Fattah, M.T. Abdel-Fattah, H.A. Ibrahim, "A Modified Large Capacity Frontal Solver for Structural Analysis", in B.H.V. Topping, (Editor), "Advances in Civil and Structural Engineering Computing for Practice", Civil-Comp Press, Edinburgh, UK, pp 437-442, 1998. doi:10.4203/ccp.56.12.1 Abstract In this paper, an improved frontal solver is presented, with modifications directed mainly to solving huge meshes that may have a variable number of degrees of freedom per node. By the efficient use of both core memory and disc storage, the solver can handle almost unlimited size of problems depending mainly on the disc free space. A dynamic memory management scheme is employed. For huge meshes, the program extends the available core memory by spilling the extra data to disc files. Main disc files created during solution are kept in the minimum possible size. A buffer is used to optimise disk operations during back-substitution. Two selected examples are compared with two general purpose finite element programs. 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 £95 +P&P)
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