Detailed Description

Interface to dgssv from UMFPACK.

Parameters

[in,out]	iopt	Operation control (1 -> performs LU decomposition for the first time, 2 -> performs triangular solve, 3 -> refactor matrix with the same non-zero pattern, 4 -> free all the storage in the end)
[in,out]	n	Number of rows
[in,out]	nnz	Number of non-zeros
[in,out]	nrhs	Number of RHS to solve (nrhs=1 only)
[in,out]	values	Matrix values in CRS format [nnz]
[in,out]	colind	Column indices in CRS format [nnz]
[in,out]	rowptr	Row pointer into colind [n+1]
[in,out]	b	Right hand side -> overwritten with solution [n]
[in,out]	ldb	Lowest dimension of vector `b` [n]
[in,out]	f_factors	Pointer to UMFPACK internal data storage
[in,out]	col_perm	Column permutation method (0 -> natural ordering, 1 -> min degree on A'*A, 2 -> min degree on A'+A, 3 -> approx min degree for unsymmetric matrices)
[in,out]	info	Solver return status (not currently used)

Public Member Functions
subroutine	lapack_matinv_complex (nrows, amat, error)
	Needs Docs.

subroutine	lapack_matinv_real (nrows, amat, error)
	Needs Docs.

Member Function/Subroutine Documentation

subroutine lapack_matinv_complex	(	integer(i4), intent(in)	nrows,
		double complex, dimension(nrows,nrows), intent(inout)	amat,
		integer(4), intent(out)	error
	)

Needs Docs.

subroutine lapack_matinv_real	(	integer(4), intent(in)	nrows,
		real(8), dimension(nrows,nrows), intent(inout)	amat,
		integer(4), intent(out)	error
	)

Needs Docs.

The documentation for this interface was generated from the following file: