rocsolver_sgetri_batched Interface Reference

rocsolver_sgetri_batched Interface Reference#

HIPFORT API Reference: hipfort_rocsolver::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]handlerocblas_handle.
[in]nrocblas_int. n >= 0.
The number of rows and columns of all matrices A_j in the batch.
[in,out]Aarray 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]ldarocblas_int. lda >= n.
Specifies the leading dimension of matrices A_j.
[in]ipivpointer to rocblas_int. Array on the GPU (the size depends on the value of strideP).
The pivot indices returned by GETRF_BATCHED.
[in]strideProcblas_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]infopointer 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_countrocblas_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: