PLASMA  2.8.0
PLASMA - Parallel Linear Algebra for Scalable Multi-core Architectures
int PLASMA_cgeqp3_Tile ( PLASMA_desc A,
int *  jpvt,
PLASMA_Complex32_t *  tau,
PLASMA_Complex32_t *  work,
float *  rwork 
)

PLASMA_cgeqp3_Tile - Computes the tile QR factorization with column pivoting of a matrix. Tile equivalent of PLASMA_cgeqp3(). Operates on matrices stored by tiles. All matrices are passed through descriptors. All dimensions are taken from the descriptors.

Parameters
[in,out]AOn 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.
[in,out]jpvtInteger array of dimension N. On exit, if jpvt(j)=k, then the j-th column of A*P was the k-th column of A.
[out]tauOn exit, scalars that define Householder reflectors, size n.
[out]workWorkspace of size (n + 1)*nb.
[out]rworkWorkspace of size 2*n.
Returns
Return values
PLASMA_SUCCESSsuccessful exit
See also
PLASMA_cgeqp3
PLASMA_cgeqp3_Tile_Async
PLASMA_cgeqp3_Tile
PLASMA_dgeqp3_Tile
PLASMA_sgeqp3_Tile