PLASMA
2.8.0
PLASMA - Parallel Linear Algebra for Scalable Multi-core Architectures
|
int PLASMA_dgelqf_Tile | ( | PLASMA_desc * | A, |
PLASMA_desc * | T | ||
) |
PLASMA_dgelqf_Tile - Computes the tile LQ factorization of a matrix. Tile equivalent of PLASMA_dgelqf(). 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 below the diagonal of the array contain the m-by-min(M,N) lower trapezoidal matrix L (L is lower triangular if M <= N); the elements above 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_dgelqs to solve the system of equations. |
PLASMA_SUCCESS | successful exit |