PLASMA
2.8.0
PLASMA - Parallel Linear Algebra for Scalable Multi-core Architectures
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int PLASMA_sgesv_incpiv_Tile | ( | PLASMA_desc * | A, |
PLASMA_desc * | L, | ||
int * | IPIV, | ||
PLASMA_desc * | B | ||
) |
PLASMA_sgesv_incpiv_Tile - Solves a system of linear equations using the tile LU factorization. Tile equivalent of PLASMA_sgetrf_incpiv(). 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 N-by-N coefficient matrix A. On exit, the tile L and U factors from the factorization (not equivalent to LAPACK). |
[in,out] | L | On exit, auxiliary factorization data, related to the tile L factor, necessary to solve the system of equations. |
[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. |
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. |