[in] | jobq | Specifies options for computing all or part of the matrix Q. Intended usage: = PlasmaVec: all M columns of Q are returned in array Q; = PlasmaNoVec: not referenced. |
[in] | jobp | Specifies options for computing all or part of the matrix V**H. Intended usage: = PlasmaVec: all N columns of P are returned in array P; = PlasmaNoVec: not referenced. |
[in] | M | The number of rows of the matrix A. M >= 0. |
[in] | N | The number of columns of the matrix A. N >= 0. |
[in,out] | A | On entry, the M-by-N matrix A. On exit, if M >= N, the diagonal and the first superdiagonal are overwritten with the upper bidiagonal matrix B; the elements below the diagonal, with the array T, represent the unitary matrix Q as a product of elementary reflectors, and the elements above the first superdiagonal, with the array T, represent the unitary matrix P as a product of elementary reflectors; if M < N, the diagonal and the first subdiagonal are overwritten with the lower bidiagonal matrix B; the elements below the first subdiagonal, with the array T, represent the unitary matrix Q as a product of elementary reflectors, and the elements above the diagonal, with the array T, represent the unitary matrix P as a product of elementary reflectors. |
[in] | LDA | The leading dimension of the array A. LDA >= max(1,M). |
[out] | D | On exit, the diagonal elements of the bidiagonal matrix: D(i) = A(i,i). Dimension (min(M,N)). |
[out] | E | On exit, the off-diagonal elements of the bidiagonal matrix: if M >= N, E(i) = A(i,i+1) for i = 1,2,...,N-1; if M < N, E(i) = A(i+1,i) for i = 1,2,...,M-1. Dimension (min(M,N)-1). |
[out] | descT | On entry, descriptor as return by PLASMA_Alloc_Workspace_cgebrd On exit, contains auxiliary factorization data. |
[out] | Q | On exit, if jobz = PlasmaVec, then if return value = 0, Q contains the M-by-M unitary matrix Q. If jobz = PlasmaNoVec, then it is not referenced. |
[in] | LDQ | The leading dimension of the array Q. LDQ >= M. |
[out] | P | On exit, if jobz = PlasmaVec, then if return value = 0, P contains the N-by-N unitary matrix P. If jobz = PlasmaNoVec, then it is not referenced. |
[in] | LDP | The leading dimension of the array P. LDP >= N. |