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int PLASMA_zcgesv_Tile |
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PLASMA_desc * |
A, |
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PLASMA_desc * |
L, |
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int * |
IPIV, |
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PLASMA_desc * |
B, |
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PLASMA_desc * |
X, |
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int * |
ITER | |
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) |
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PLASMA_zcgesv_Tile - Solves a system of linear equations using the tile LU factorization and mixed-precision iterative refinement. Tile equivalent of PLASMA_zcgesv(). Operates on matrices stored by tiles. All matrices are passed through descriptors. All dimensions are taken from the descriptors.
- Parameters:
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[in,out] | A | On entry, the N-by-N coefficient matrix A.
- If the iterative refinement converged, A is not modified;
- otherwise, it fell back to double precision solution, and then A contains the tile L and U factors from the factorization (not equivalent to LAPACK).
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[out] | L | On exit:
- if the iterative refinement converged, L is not modified;
- otherwise, it fell back to double precision solution, and then L is an auxiliary factorization data, related to the tile L factor, necessary to solve the system of equations (not equivalent to LAPACK).
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[out] | IPIV | On exit, the pivot indices that define the permutations (not equivalent to LAPACK). |
[in,out] | B | On entry, the N-by-NRHS matrix of right hand side matrix B. On exit, if return value = 0, the N-by-NRHS solution matrix X. |
- Returns:
- Return values:
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| PLASMA_SUCCESS | successful exit |
| >0 | if i, U(i,i) is exactly zero. The factorization has been completed, but the factor U is exactly singular, so the solution could not be computed. |
- See also:
- PLASMA_zcgesv
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PLASMA_zcgesv_Tile_Async
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PLASMA_dsgesv_Tile
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PLASMA_zgesv_Tile
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