
Accession Number : AD0770618
Title : SOLVEDG, An OutofCore System Solver for Large Order Positive Definite Systems of Linear Equations,
Corporate Author : NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD
Personal Author(s) : Gignac,Donald A.
Report Date : AUG 1973
Pagination or Media Count : 36
Abstract : In the finite element approach to static structural analysis, the solution of the equation KU = P a positive definite system of simultaneous linear equations is basic. However, the order of K is often so large that, when advantage is taken of K's symmetry and banded structure, it is not feasible or sometimes even possible to store K in the core memory of a computer. SOLVEDG is an outofcore system solver for KU = P suggested by Cantin's IBM 360 program SOLVE. SETUP is a preprocessor program for SOLVEDG which stores the matrices K and P in Random Access Files. SOLVEDG and SETUP are written in FORTRAN Extended for the CDC 6700 (6400/6600). The report also contains an original proof justifying the basic algorithm of SOLVEDG. (Author)
Descriptors : *Ships, *Structural properties, *Computer applications, Computer programs, Algorithms, FORTRAN, Computations, Matrices(Mathematics)
Subject Categories : Computer Programming and Software
Marine Engineering
Distribution Statement : APPROVED FOR PUBLIC RELEASE