rocsolver_spotrf_strided_batched Interface Reference#
hipfort_rocsolver::rocsolver_spotrf_strided_batched Interface Reference
The POTRF_STRIDED_BATCHED functions computes 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_spotrf_strided_batched_ (handle, uplo, n, a, lda, stridea, myinfo, batch_count) |
| integer(kind(rocblas_status_success)) function | rocsolver_spotrf_strided_batched_rank_0 (handle, uplo, n, a, lda, stridea, myinfo, batch_count) |
| integer(kind(rocblas_status_success)) function | rocsolver_spotrf_strided_batched_rank_1 (handle, uplo, n, a, lda, stridea, myinfo, batch_count) |
| integer(kind(rocblas_status_success)) function | rocsolver_spotrf_strided_batched_full_rank (handle, uplo, n, a, lda, stridea, myinfo, batch_count) |
Detailed Description
The POTRF_STRIDED_BATCHED functions computes the Cholesky factorization of a batch of real symmetric (complex Hermitian) positive definite matrices.
(This is the blocked 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 - pointer to type. Array on the GPU (the size depends on the value of strideA). 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. [in] strideA - rocblas_stride. Stride from the start of one matrix A_l to the next one A_(l+1). There is no restriction for the value of strideA. The normal use case is strideA >= lda*n. [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_spotrf_strided_batched_()
| integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_spotrf_strided_batched::rocsolver_spotrf_strided_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, | ||
| integer(c_int64_t), value | stridea, | ||
| type(c_ptr), value | myinfo, | ||
| integer(c_int), value | batch_count | ||
| ) |
◆ rocsolver_spotrf_strided_batched_full_rank()
| integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_spotrf_strided_batched::rocsolver_spotrf_strided_batched_full_rank | ( | type(c_ptr) | handle, |
| integer(kind(rocblas_fill_upper)) | uplo, | ||
| integer(c_int) | n, | ||
| real(c_float), dimension(:,:), target | a, | ||
| integer(c_int) | lda, | ||
| integer(c_int64_t) | stridea, | ||
| type(c_ptr) | myinfo, | ||
| integer(c_int) | batch_count | ||
| ) |
◆ rocsolver_spotrf_strided_batched_rank_0()
| integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_spotrf_strided_batched::rocsolver_spotrf_strided_batched_rank_0 | ( | type(c_ptr) | handle, |
| integer(kind(rocblas_fill_upper)) | uplo, | ||
| integer(c_int) | n, | ||
| real(c_float), target | a, | ||
| integer(c_int) | lda, | ||
| integer(c_int64_t) | stridea, | ||
| type(c_ptr) | myinfo, | ||
| integer(c_int) | batch_count | ||
| ) |
◆ rocsolver_spotrf_strided_batched_rank_1()
| integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_spotrf_strided_batched::rocsolver_spotrf_strided_batched_rank_1 | ( | type(c_ptr) | handle, |
| integer(kind(rocblas_fill_upper)) | uplo, | ||
| integer(c_int) | n, | ||
| real(c_float), dimension(:), target | a, | ||
| integer(c_int) | lda, | ||
| integer(c_int64_t) | stridea, | ||
| type(c_ptr) | myinfo, | ||
| integer(c_int) | batch_count | ||
| ) |
The documentation for this interface was generated from the following file: