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

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

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

Detailed Description

Solves Hermitian eigenvalue problem by the QR algorithm.

Member Function/Subroutine Documentation

subroutine scalapackfx_module::scalafx_pheev::scalafx_pheev_complex	(	complex(sp), dimension(:,:), intent(inout)	aa,
		integer, dimension(dlen_), intent(in)	desca,
		real(sp), dimension(:), intent(out)	ww,
		complex(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,
		complex(sp), dimension(:), intent(inout), optional, allocatable	work,
		real(sp), dimension(:), intent(inout), optional, allocatable	rwork,
		integer, intent(out), optional	info
	)

private

Solves complex 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	Complex working array (if not specified, allocated automatically)
rwork	Real working array (if not specified, allocated automatically)
info	Info flag. If not specified and SCALAPACK calls returns nozero, subroutine stops.

subroutine scalapackfx_module::scalafx_pheev::scalafx_pheev_dcomplex	(	complex(dp), dimension(:,:), intent(inout)	aa,
		integer, dimension(dlen_), intent(in)	desca,
		real(dp), dimension(:), intent(out)	ww,
		complex(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,
		complex(dp), dimension(:), intent(inout), optional, allocatable	work,
		real(dp), dimension(:), intent(inout), optional, allocatable	rwork,
		integer, intent(out), optional	info
	)

private

Solves complex 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	Complex working array (if not specified, allocated automatically)
rwork	Real 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: