PLASMA
2.8.0
PLASMA - Parallel Linear Algebra for Scalable Multi-core Architectures
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int PLASMA_zgeqrf_Tile | ( | PLASMA_desc * | A, |
PLASMA_desc * | T | ||
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PLASMA_zgeqrf_Tile - Computes the tile QR factorization of a matrix. Tile equivalent of PLASMA_zgeqrf(). Operates on matrices stored by tiles. All matrices are passed through descriptors. All dimensions are taken from the descriptors.
[in,out] | A | On entry, the M-by-N matrix A. On exit, the elements on and above the diagonal of the array contain the min(M,N)-by-N upper trapezoidal matrix R (R is upper triangular if M >= N); the elements below the diagonal represent the unitary matrix Q as a product of elementary reflectors stored by tiles. |
[out] | T | On exit, auxiliary factorization data, required by PLASMA_zgeqrs to solve the system of equations. |
PLASMA_SUCCESS | successful exit |