Contents
cgssfa - General sparse solver numeric factorization.
SUBROUTINE CGSSFA ( NEQNS, COLSTR, ROWIND, VALUES, HANDLE, IER )
INTEGER NEQNS, COLSTR(*), ROWIND(*), IER
COMPLEX VALUES(*)
DOUBLE PRECISION HANDLE(150)
CGSSFA - Numeric factorization of a sparse matrix.
NEQNS - INTEGER
On entry, NEQNS specifies the number of equations in
coefficient matrix. Unchanged on exit.
COLSTR(*) - INTEGER array
On entry, COLSTR(*) is an array of size (NEQNS+1),
containing the pointers of the matrix structure.
Unchanged on exit.
ROWIND(*) - INTEGER array
On entry, ROWIND(*) is an array of size
COLSTR(NEQNS+1)-1, containing the indices of the
matrix structure. Unchanged on exit.
VALUES(*) - COMPLEX array
On entry, VALUES(*) is an array of size
COLSTR(NEQNS+1)-1, containing the numeric values of
the sparse matrix to be factored. Unchanged on
exit.
HANDLE(150) - DOUBLE PRECISION array
On entry, HANDLE(*) is an array containing
information needed by the solver, and must be passed
unchanged to each sparse solver subroutine.
Modified on exit.
IER - INTEGER
Error number. If no error encountered, unchanged on
exit. If error encountered, it is set to a non-zero
integer. Error numbers set by this subroutine:
-300 : Invalid calling sequence - need to call CGSSOR first.
-301 : Failure to dynamically allocate memory.
-666 : Internal error.