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int PLASMA_dgeqrf |
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int |
M, |
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int |
N, |
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double * |
A, |
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int |
LDA, |
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double * |
T | |
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) |
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PLASMA_dgeqrf - Computes the tile QR factorization of a complex M-by-N matrix A: A = Q * R.
- Parameters:
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[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, 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] | LDA | The leading dimension of the array A. LDA >= max(1,M). |
[out] | T | On exit, auxiliary factorization data, required by PLASMA_dgeqrs to solve the system of equations. |
- Returns:
- Return values:
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| PLASMA_SUCCESS | successful exit |
| <0 | if -i, the i-th argument had an illegal value |
- See also:
- PLASMA_dgeqrf_Tile
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PLASMA_dgeqrf_Tile_Async
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PLASMA_cgeqrf
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PLASMA_dgeqrf
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PLASMA_sgeqrf
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PLASMA_dgeqrs
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