rocsolver_spotf2_batched Interface Reference#
hipfort_rocsolver::rocsolver_spotf2_batched Interface Reference
The POTF2_BATCHED functions compute the Cholesky factorization of a batch of real symmetric (complex Hermitian) positive definite matrices. More...
Public Member Functions | |
| integer(kind(rocblas_status_success)) function | rocsolver_spotf2_batched_ (handle, uplo, n, a, lda, myinfo, batch_count) |
Detailed Description
The POTF2_BATCHED functions compute the Cholesky factorization of a batch of real symmetric (complex Hermitian) positive definite matrices.
(This is the unblocked version of the algorithm.)
The factorization of matrix \(A_l\) in the batch has the form:
\[ \begin{array}{cl} A_l^{} = U_l^H U_l^{} & \: \text{if uplo is upper, or}\\% A_l^{} = L_l^{}L_l^H & \: \text{if uplo is lower.} \end{array} \]
\(U_l\) is an upper triangular matrix and \(L_l\) is lower triangular.
- Parameters
-
[in] handle - rocblas_handle. [in] uplo - rocblas_fill. Specifies whether the factorization is upper or lower triangular. If uplo indicates lower (or upper), then the upper (or lower) part of A_l is not used. [in] n - rocblas_int. n >= 0. The number of rows and columns of matrix A_l. [in,out] A - array of pointers to type. Each pointer points to an array on the GPU of dimension lda*n. On entry, the matrices A_l to be factored. On exit, the upper or lower triangular factors. [in] lda - rocblas_int. lda >= n. Specifies the leading dimension of A_l. [out] myInfo - pointer to rocblas_int. Array of batch_count integers on the GPU. If info[l] = 0, successful factorization of matrix A_l. If info[l] = i > 0, the leading minor of order i of A_l is not positive definite. The l-th factorization stopped at this point. [in] batch_count - rocblas_int. batch_count >= 0. Number of matrices in the batch.
Member Function/Subroutine Documentation
◆ rocsolver_spotf2_batched_()
| integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_spotf2_batched::rocsolver_spotf2_batched_ | ( | type(c_ptr), value | handle, |
| integer(kind(rocblas_fill_upper)), value | uplo, | ||
| integer(c_int), value | n, | ||
| type(c_ptr), value | a, | ||
| integer(c_int), value | lda, | ||
| type(c_ptr), value | myinfo, | ||
| integer(c_int), value | batch_count | ||
| ) |
The documentation for this interface was generated from the following file: