PLASMA  2.8.0
PLASMA - Parallel Linear Algebra for Scalable Multi-core Architectures
int PLASMA_chegst_Tile ( PLASMA_enum  itype,
PLASMA_enum  uplo,
PLASMA_desc A,
PLASMA_desc B 
)

PLASMA_chegst_Tile - reduces a complex Hermitian-definite generalized eigenproblem to standard form. If PlasmaItype == 1, the problem is A*x = lambda*B*x, and A is overwritten by inv(U**H)*A*inv(U) or inv(L)*A*inv(L**H) If PlasmaItype == 2 or 3, the problem is A*B*x = lambda*x or B*A*x = lambda*x, and A is overwritten by U*A*U**H or L**H*A*L. B must have been previously factorized as U**H*U or L*L**H by PLASMA_CPOTRF. ONLY PlasmaItype == 1 and PlasmaLower supported! Tile equivalent of PLASMA_chegst(). Operates on matrices stored by tiles. All matrices are passed through descriptors. All dimensions are taken from the descriptors.

Parameters
[in]itypeIntended usage: = 1: A*x=(lambda)*B*x = 2: A*Bx=(lambda)*x = 3: B*A*x=(lambda)*x Currently only PlasmaItype == 1 is supported.
[in]uploSpecifies whether the matrix A is upper triangular or lower triangular: = PlasmaUpper: Upper triangle of A is stored; = PlasmaLower: Lower triangle of A is stored. Currently only PlasmaLower is supported.
[in,out]AOn entry, the symmetric (or Hermitian) 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 = PlasmaLower, 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. On exit, if return value == 0, the transformed matrix, stored in the same format as A.
[in,out]BOn entry, the triangular factor from the Cholesky factorization of B, as returned by PLASMA_CPOTRF.
Returns
Return values
PLASMA_SUCCESSsuccessful exit
<0if -i, the i-th argument had an illegal value
See also
PLASMA_chegst
PLASMA_chegst_Tile_Async
PLASMA_chegst_Tile
PLASMA_dsygst_Tile
PLASMA_ssygst_Tile
PLASMA_chegst_Tile