int PLASMA_zheev	(	PLASMA_enum	jobz,
		PLASMA_enum	uplo,
		int	N,
		PLASMA_Complex64_t *	A,
		int	LDA,
		double *	W,
		PLASMA_desc *	descT,
		PLASMA_Complex64_t *	Q,
		int	LDQ
	)

PLASMA_zheev - Computes all eigenvalues and, optionally, eigenvectors of a complex Hermitian matrix A. The matrix A is preliminary reduced to tridiagonal form using a two-stage approach: First stage: reduction to band tridiagonal form; Second stage: reduction from band to tridiagonal form.

Parameters

[in]	jobz	Intended usage: = PlasmaNoVec: computes eigenvalues only; = PlasmaVec: computes eigenvalues and eigenvectors.
[in]	uplo	Specifies whether the matrix A is upper triangular or lower triangular: = PlasmaUpper: Upper triangle of A is stored; = PlasmaLower: Lower triangle of A is stored.
[in]	N	The order of the matrix A. N >= 0.
[in,out]	A	On entry, the symmetric (or Hermitian) matrix A. If uplo = PlasmaUpper, the leading N-by-N upper triangular part of A contains the upper triangular part of the matrix A, and the strictly lower triangular part of A is not referenced. If uplo = PlasmaLower, the leading N-by-N lower triangular part of A contains the lower triangular part of the matrix A, and the strictly upper triangular part of A is not referenced. On exit, the lower triangle (if uplo = PlasmaLower) or the upper triangle (if uplo = PlasmaUpper) of A, including the diagonal, is destroyed.
[in]	LDA	The leading dimension of the array A. LDA >= max(1,N).
[out]	W	On exit, if info = 0, the eigenvalues.
[in,out]	descT	On entry, descriptor as return by PLASMA_Alloc_Workspace_zheev On exit, contains auxiliary factorization data.
[out]	Q	On exit, if jobz = PlasmaVec and info = 0, the eigenvectors.
[in]	LDQ	The leading dimension of the array Q. LDQ >= max(1,N).

Returns

Return values

PLASMA_SUCCESS	successful exit
<0	if -i, the i-th argument had an illegal value
>0	if INFO = i, the algorithm failed to converge; i off-diagonal elements of an intermediate tridiagonal form did not converge to zero.

See Also

PLASMA_zheev_Tile

PLASMA_zheev_Tile_Async

PLASMA_cheev

PLASMA_dsyev

PLASMA_ssyev

PLASMA_zheev - Computes all eigenvalues and, optionally, eigenvectors of a complex Hermitian matrix A. The matrix A is preliminary reduced to tridiagonal form using a two-stage approach: First stage: reduction to band tridiagonal form; Second stage: reduction from band to tridiagonal form. Note: Only PlasmaNoVec supported!

Parameters

[in]	jobz	Intended usage: = PlasmaNoVec: computes eigenvalues only; = PlasmaVec: computes eigenvalues and eigenvectors. Note: Only PlasmaNoVec supported!
[in]	uplo	Specifies whether the matrix A is upper triangular or lower triangular: = PlasmaUpper: Upper triangle of A is stored; = PlasmaLower: Lower triangle of A is stored.
[in]	N	The order of the matrix A. N >= 0.
[in,out]	A	On entry, the symmetric (or Hermitian) matrix A. If uplo = PlasmaUpper, the leading N-by-N upper triangular part of A contains the upper triangular part of the matrix A, and the strictly lower triangular part of A is not referenced. If uplo = PlasmaLower, the leading N-by-N lower triangular part of A contains the lower triangular part of the matrix A, and the strictly upper triangular part of A is not referenced. On exit, the lower triangle (if uplo = PlasmaLower) or the upper triangle (if uplo = PlasmaUpper) of A, including the diagonal, is destroyed.
[in]	LDA	The leading dimension of the array A. LDA >= max(1,N).
[out]	W	On exit, if info = 0, the eigenvalues.
[in,out]	descT	On entry, descriptor as return by PLASMA_Alloc_Workspace_zheev On exit, contains auxiliary factorization data.
[out]	Q	On exit, if jobz = PlasmaVec and info = 0, the eigenvectors.
[in]	LDQ	The leading dimension of the array Q. LDQ >= max(1,N).

Returns

Return values

PLASMA_SUCCESS	successful exit
<0	if -i, the i-th argument had an illegal value
>0	if INFO = i, the algorithm failed to converge; i off-diagonal elements of an intermediate tridiagonal form did not converge to zero.

See Also

PLASMA_zheev_Tile

PLASMA_zheev_Tile_Async

PLASMA_cheev

PLASMA_dsyev

PLASMA_ssyev