rocsolver_sgesv Interface Reference#
hipfort_rocsolver::rocsolver_sgesv Interface Reference
The GESV functions solve a general system of n linear equations on n variables.
More...
Public Member Functions | |
| integer(kind(rocblas_status_success)) function | rocsolver_sgesv_ (handle, n, nrhs, a, lda, ipiv, b, ldb, myinfo) |
| integer(kind(rocblas_status_success)) function | rocsolver_sgesv_rank_0 (handle, n, nrhs, a, lda, ipiv, b, ldb, myinfo) |
| integer(kind(rocblas_status_success)) function | rocsolver_sgesv_rank_1 (handle, n, nrhs, a, lda, ipiv, b, ldb, myinfo) |
| integer(kind(rocblas_status_success)) function | rocsolver_sgesv_full_rank (handle, n, nrhs, a, lda, ipiv, b, ldb, myinfo) |
Detailed Description
The GESV functions solve a general system of n linear equations on n variables.
The linear system is of the form
\[ A X = B \]
where A is a general n -by-nmatrix. Matrix A is first factorized in triangular factors L and U using GETRF, then the solution is computed with GETRS.
- Parameters
-
[in] handle - rocblas_handle. [in] n - rocblas_int. n >= 0. The order of the system, that is, the number of columns and rows of A. [in] nrhs - rocblas_int. nrhs >= 0. The number of right hand sides, that is, the number of columns of the matrix B. [in,out] A - pointer to type. Array on the GPU of dimension lda*n. On entry, the matrix A. On exit, if info = 0, the factors L and U of the LU decomposition of A returned by GETRF. [in] lda - rocblas_int. lda >= n. The leading dimension of A. [out] ipiv - pointer to rocblas_int. Array on the GPU of dimension n. The pivot indices returned by GETRF. [in,out] B - pointer to type. Array on the GPU of dimension ldb*nrhs. On entry, the right hand side matrix B. On exit, the solution matrix X. [in] ldb - rocblas_int. ldb >= n. The leading dimension of B. [out] myInfo - pointer to a rocblas_int on the GPU. If info = 0, successful exit. If info = i > 0, U is singular, and the solution could not be computed. U[i,i] is the first zero element in the diagonal.
Member Function/Subroutine Documentation
◆ rocsolver_sgesv_()
| integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgesv::rocsolver_sgesv_ | ( | type(c_ptr), value | handle, |
| integer(c_int), value | n, | ||
| integer(c_int), value | nrhs, | ||
| type(c_ptr), value | a, | ||
| integer(c_int), value | lda, | ||
| type(c_ptr), value | ipiv, | ||
| type(c_ptr), value | b, | ||
| integer(c_int), value | ldb, | ||
| type(c_ptr), value | myinfo | ||
| ) |
◆ rocsolver_sgesv_full_rank()
| integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgesv::rocsolver_sgesv_full_rank | ( | type(c_ptr) | handle, |
| integer(c_int) | n, | ||
| integer(c_int) | nrhs, | ||
| real(c_float), dimension(:,:), target | a, | ||
| integer(c_int) | lda, | ||
| integer(c_int), dimension(:), target | ipiv, | ||
| real(c_float), dimension(:,:), target | b, | ||
| integer(c_int) | ldb, | ||
| type(c_ptr) | myinfo | ||
| ) |
◆ rocsolver_sgesv_rank_0()
| integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgesv::rocsolver_sgesv_rank_0 | ( | type(c_ptr) | handle, |
| integer(c_int) | n, | ||
| integer(c_int) | nrhs, | ||
| real(c_float), target | a, | ||
| integer(c_int) | lda, | ||
| integer(c_int), target | ipiv, | ||
| real(c_float), target | b, | ||
| integer(c_int) | ldb, | ||
| type(c_ptr) | myinfo | ||
| ) |
◆ rocsolver_sgesv_rank_1()
| integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgesv::rocsolver_sgesv_rank_1 | ( | type(c_ptr) | handle, |
| integer(c_int) | n, | ||
| integer(c_int) | nrhs, | ||
| real(c_float), dimension(:), target | a, | ||
| integer(c_int) | lda, | ||
| integer(c_int), dimension(:), target | ipiv, | ||
| real(c_float), dimension(:), target | b, | ||
| integer(c_int) | ldb, | ||
| type(c_ptr) | myinfo | ||
| ) |
The documentation for this interface was generated from the following file: