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int PLASMA_zcposv_Tile |
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PLASMA_enum |
uplo, |
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PLASMA_desc * |
A, |
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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_zcposv_Tile - Solves a symmetric positive definite or Hermitian positive definite system of linear equations using the Cholesky factorization and mixed-precision iterative refinement. Tile equivalent of PLASMA_zcposv(). 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] | uplo | Specifies whether the matrix A is upper triangular or lower triangular: = PlasmaUpper: Upper triangle of A is stored; = PlasmaLower: Lower triangle of A is stored. |
[in,out] | A | On entry, the N-by-N symmetric positive definite (or Hermitian) coefficient matrix A. If uplo = PlasmaUpper, the leading N-by-N upper triangular part of A contains the upper triangular part of the matrix A, and the strictly lower triangular part of A is not referenced. If UPLO = 'L', the leading N-by-N lower triangular part of A contains the lower triangular part of the matrix A, and the strictly upper triangular part of A is not referenced.
- If the iterative refinement converged, A is not modified;
- otherwise, it falled backed to double precision solution,
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[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, the leading minor of order i of A is not positive definite, so the factorization could not be completed, and the solution has not been computed. |
- See also:
- PLASMA_zcposv
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PLASMA_zcposv_Tile_Async
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PLASMA_dsposv_Tile
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PLASMA_zposv_Tile
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