Solves symmetric eigenvalue problem by the QR algorithm. More...

Private Member Functions
subroutine	scalafx_psyev_real (aa, desca, ww, zz, descz, jobz, uplo, ia, ja, iz, jz, work, info)
	Solves real eigenvalue problem.

subroutine	scalafx_psyev_dreal (aa, desca, ww, zz, descz, jobz, uplo, ia, ja, iz, jz, work, info)
	Solves real eigenvalue problem.

Detailed Description

Solves symmetric eigenvalue problem by the QR algorithm.

Member Function/Subroutine Documentation

subroutine scalapackfx_module::scalafx_psyev::scalafx_psyev_dreal	(	real(dp), dimension(:,:), intent(inout)	aa,
		integer, dimension(dlen_), intent(in)	desca,
		real(dp), dimension(:), intent(out)	ww,
		real(dp), dimension(:,:), intent(out)	zz,
		integer, dimension(dlen_), intent(in)	descz,
		character, intent(in), optional	jobz,
		character, intent(in), optional	uplo,
		integer, intent(in), optional	ia,
		integer, intent(in), optional	ja,
		integer, intent(in), optional	iz,
		integer, intent(in), optional	jz,
		real(dp), dimension(:), intent(inout), optional, allocatable	work,
		integer, intent(out), optional	info
	)

private

Solves real eigenvalue problem.

Parameters

aa	Matrix to diagonalize (A).
desca	Descriptor of matrix A.
ww	Eigenvalues on exit.
zz	Eigenvectors on exit (Z).
descz	Descriptor of the eigenvector matrix.
jobz	Job type (default: "V")
uplo	Upper or lower diagonal matrix (default: "L")
ia	First row of the submatrix A (default: 1)
ja	First column of the submatrix A (default: 1)
iz	First row of the submatrix Z (default: 1)
jz	First column of the submatrix Z (default: 1)
work	Working array (if not specified, allocated automatically)
info	Info flag. If not specified and SCALAPACK calls returns nozero, subroutine stops.

subroutine scalapackfx_module::scalafx_psyev::scalafx_psyev_real	(	real(sp), dimension(:,:), intent(inout)	aa,
		integer, dimension(dlen_), intent(in)	desca,
		real(sp), dimension(:), intent(out)	ww,
		real(sp), dimension(:,:), intent(out)	zz,
		integer, dimension(dlen_), intent(in)	descz,
		character, intent(in), optional	jobz,
		character, intent(in), optional	uplo,
		integer, intent(in), optional	ia,
		integer, intent(in), optional	ja,
		integer, intent(in), optional	iz,
		integer, intent(in), optional	jz,
		real(sp), dimension(:), intent(inout), optional, allocatable	work,
		integer, intent(out), optional	info
	)

private

Solves real eigenvalue problem.

Parameters

aa	Matrix to diagonalize (A).
desca	Descriptor of matrix A.
ww	Eigenvalues on exit.
zz	Eigenvectors on exit (Z).
descz	Descriptor of the eigenvector matrix.
jobz	Job type (default: "V")
uplo	Upper or lower diagonal matrix (default: "L")
ia	First row of the submatrix A (default: 1)
ja	First column of the submatrix A (default: 1)
iz	First row of the submatrix Z (default: 1)
jz	First column of the submatrix Z (default: 1)
work	Working array (if not specified, allocated automatically)
info	Info flag. If not specified and SCALAPACK calls returns nozero, subroutine stops.

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