PLASMA  2.8.0
PLASMA - Parallel Linear Algebra for Scalable Multi-core Architectures
int PLASMA_zcgesv_Tile ( PLASMA_desc A,
int *  IPIV,
PLASMA_desc B,
PLASMA_desc X,
int *  ITER 
)

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
[in,out]AOn 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).
[out]IPIVOn exit, the pivot indices that define the permutations (not equivalent to LAPACK).
[in]BOn entry, the N-by-NRHS matrix of right hand side matrix B.
[out]XOn exit, if return value = 0, the N-by-NRHS solution matrix X.
[out]ITERThe number of the current iteration in the iterative refinement process
Returns
Return values
PLASMA_SUCCESSsuccessful exit
>0if 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
PLASMA_zcgesv_Tile_Async
PLASMA_dsgesv_Tile
PLASMA_zgesv_Tile