rocsolver_sgetri_batched Interface Reference#
hipfort_rocsolver::rocsolver_sgetri_batched Interface Reference
GETRI_BATCHED inverts a batch of general n-by-n matrices using the LU factorization computed by GETRF_BATCHED. More...
Public Member Functions | |
integer(kind(rocblas_status_success)) function | rocsolver_sgetri_batched_ (handle, n, A, lda, ipiv, strideP, myInfo, batch_count) |
integer(kind(rocblas_status_success)) function | rocsolver_sgetri_batched_full_rank (handle, n, A, lda, ipiv, strideP, myInfo, batch_count) |
integer(kind(rocblas_status_success)) function | rocsolver_sgetri_batched_rank_0 (handle, n, A, lda, ipiv, strideP, myInfo, batch_count) |
integer(kind(rocblas_status_success)) function | rocsolver_sgetri_batched_rank_1 (handle, n, A, lda, ipiv, strideP, myInfo, batch_count) |
Detailed Description
GETRI_BATCHED inverts a batch of general n-by-n matrices using the LU factorization computed by GETRF_BATCHED.
The inverse of matrix \(A_j\) in the batch is computed by solving the linear system
\[ A_j^{-1} L_j = U_j^{-1} \]
where \(L_j\) is the lower triangular factor of \(A_j\) with unit diagonal elements, and \(U_j\) is the upper triangular factor.
- Parameters
-
[in] handle rocblas_handle. [in] n rocblas_int. n >= 0.
The number of rows and columns of all matrices A_j in the batch.[in,out] A array of pointers to type. Each pointer points to an array on the GPU of dimension lda*n.
On entry, the factors L_j and U_j of the factorization A = P_j*L_j*U_j returned by GETRF_BATCHED. On exit, the inverses of A_j if info[j] = 0; otherwise undefined.[in] lda rocblas_int. lda >= n.
Specifies the leading dimension of matrices A_j.[in] ipiv pointer to rocblas_int. Array on the GPU (the size depends on the value of strideP).
The pivot indices returned by GETRF_BATCHED.[in] strideP rocblas_stride.
Stride from the start of one vector ipiv_j to the next one ipiv_(i+j). There is no restriction for the value of strideP. Normal use case is strideP >= n.[out] info pointer to rocblas_int. Array of batch_count integers on the GPU.
If info[j] = 0, successful exit for inversion of A_j. If info[j] = i > 0, U_j is singular. U_j[i,i] is the first zero pivot.[in] batch_count rocblas_int. batch_count >= 0.
Number of matrices in the batch.
Member Function/Subroutine Documentation
◆ rocsolver_sgetri_batched_()
integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetri_batched::rocsolver_sgetri_batched_ | ( | type(c_ptr), value | handle, |
integer(c_int), value | n, | ||
type(c_ptr) | A, | ||
integer(c_int), value | lda, | ||
type(c_ptr), value | ipiv, | ||
integer(c_int64_t), value | strideP, | ||
integer(c_int) | myInfo, | ||
integer(c_int), value | batch_count | ||
) |
◆ rocsolver_sgetri_batched_full_rank()
integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetri_batched::rocsolver_sgetri_batched_full_rank | ( | type(c_ptr) | handle, |
integer(c_int) | n, | ||
real(c_float), dimension(:,:,:), target | A, | ||
integer(c_int) | lda, | ||
integer(c_int), dimension(:), target | ipiv, | ||
integer(c_int64_t) | strideP, | ||
integer(c_int) | myInfo, | ||
integer(c_int) | batch_count | ||
) |
◆ rocsolver_sgetri_batched_rank_0()
integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetri_batched::rocsolver_sgetri_batched_rank_0 | ( | type(c_ptr) | handle, |
integer(c_int) | n, | ||
real(c_float), target | A, | ||
integer(c_int) | lda, | ||
integer(c_int), target | ipiv, | ||
integer(c_int64_t) | strideP, | ||
integer(c_int) | myInfo, | ||
integer(c_int) | batch_count | ||
) |
◆ rocsolver_sgetri_batched_rank_1()
integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetri_batched::rocsolver_sgetri_batched_rank_1 | ( | type(c_ptr) | handle, |
integer(c_int) | n, | ||
real(c_float), dimension(:), target | A, | ||
integer(c_int) | lda, | ||
integer(c_int), dimension(:), target | ipiv, | ||
integer(c_int64_t) | strideP, | ||
integer(c_int) | myInfo, | ||
integer(c_int) | batch_count | ||
) |
The documentation for this interface was generated from the following file: