Accession Number : ADA021668


Title :   Further Programs for the Solution of Large Sparse Systems of Linear Equations


Descriptive Note : Technical rept.


Corporate Author : MARYLAND UNIV COLLEGE PARK COMPUTER SCIENCE CENTER


Personal Author(s) : Mesztenyi, Charles K ; Rheinboldt, Werner C


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA021668


Report Date : Aug 1975


Pagination or Media Count : 51


Abstract : A package of FORTRAN subroutines is presented for the solution of non-symmetric or symmetric sparse linear systems by triangular decomposition. Two principle aims are (1) to handle matrices which originally fit into primary core storage but do so no longer after decomposition, and (2) to solve a sequence of linear systems all of which have the same sparsity structure by generating--in secondary storage--a record of the decomposition process in the form of an integer array. Some experimental results using the package are included.


Descriptors :   *COMPUTER PROGRAMS , *LINEAR SYSTEMS , *MATRICES(MATHEMATICS) , *SUBROUTINES , ARRAYS , DATA STORAGE SYSTEMS , DECOMPOSITION , EQUATIONS , FORTRAN


Subject Categories : Theoretical Mathematics
      Computer Programming and Software
      Computer Hardware


Distribution Statement : APPROVED FOR PUBLIC RELEASE