rocsolver_cheevdj Interface Reference#
hipfort_rocsolver::rocsolver_cheevdj Interface Reference
The HEEVDJ functions compute the eigenvalues and optionally the eigenvectors of a complex Hermitian matrix A. More...
Public Member Functions | |
| integer(kind(rocblas_status_success)) function | rocsolver_cheevdj_ (handle, evect, uplo, n, a, lda, d, myinfo) |
Detailed Description
The HEEVDJ functions compute the eigenvalues and optionally the eigenvectors of a complex Hermitian matrix A.
The eigenvalues are found using the iterative Jacobi algorithm and are returned in ascending order. The eigenvectors are computed using a divide-and-conquer approach depending on the value of evect. The computed eigenvectors are orthonormal.
- Parameters
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[in] handle - rocblas_handle. [in] evect - rocblas_evect. Specifies whether the eigenvectors are to be computed. If evect is rocblas_evect_original, then the eigenvectors are computed. rocblas_evect_tridiagonal is not supported.[in] uplo - rocblas_fill. Specifies whether the upper or lower part of the Hermitian matrix A is stored. If uplo indicates lower (or upper), then the upper (or lower) part of A is not used. [in] n - rocblas_int. n >= 0. Number of rows and columns of matrix A. [in,out] A - pointer to type. Array on the GPU of dimension lda*n. On entry, the matrix A. On exit, the eigenvectors of A if they were computed and the algorithm converged. Otherwise, the contents of A are destroyed. [in] lda - rocblas_int. lda >= n. Specifies the leading dimension of matrix A. [out] D - pointer to real type. Array on the GPU of dimension n. The eigenvalues of A in increasing order. [out] myInfo - pointer to a rocblas_int on the GPU. If info = 0, successful exit. If info = 1, the algorithm did not converge.
Member Function/Subroutine Documentation
◆ rocsolver_cheevdj_()
| integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_cheevdj::rocsolver_cheevdj_ | ( | type(c_ptr), value | handle, |
| integer(kind(rocblas_evect_original)), value | evect, | ||
| 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 | d, | ||
| type(c_ptr), value | myinfo | ||
| ) |
The documentation for this interface was generated from the following file: