rocsolver_sgetri_outofplace_strided_batched Interface Reference

• hipfort_rocsolver
• rocsolver_sgetri_outofplace_strided_batched

Public Member Functions | List of all members

hipfort_rocsolver::rocsolver_sgetri_outofplace_strided_batched Interface Reference

GETRI_OUTOFPLACE_STRIDED_BATCHED computes the inverse \(C_j = A_j^{-1}\) of a batch of general n-by-n matrices \(A_j\). More...

Public Member Functions
integer(kind(rocblas_status_success)) function	rocsolver_sgetri_outofplace_strided_batched_ (handle, n, A, lda, strideA, ipiv, strideP, C, ldc, strideC, myInfo, batch_count)
integer(kind(rocblas_status_success)) function	rocsolver_sgetri_outofplace_strided_batched_full_rank (handle, n, A, lda, strideA, ipiv, strideP, C, ldc, strideC, myInfo, batch_count)
integer(kind(rocblas_status_success)) function	rocsolver_sgetri_outofplace_strided_batched_rank_0 (handle, n, A, lda, strideA, ipiv, strideP, C, ldc, strideC, myInfo, batch_count)
integer(kind(rocblas_status_success)) function	rocsolver_sgetri_outofplace_strided_batched_rank_1 (handle, n, A, lda, strideA, ipiv, strideP, C, ldc, strideC, myInfo, batch_count)

Detailed Description

GETRI_OUTOFPLACE_STRIDED_BATCHED computes the inverse \(C_j = A_j^{-1}\) of a batch of general n-by-n matrices \(A_j\).

The inverse is computed by solving the linear system

\[ A_j C_j = I \]

where I is the identity matrix, and \(A_j\) is factorized as \(A_j = P_j L_j U_j\) as given by GETRF_STRIDED_BATCHED.

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]	A	pointer to type. Array on the GPU (the size depends on the value of strideA). The factors L_j and U_j of the factorization A_j = P_j*L_j*U_j returned by GETRF_STRIDED_BATCHED.
[in]	lda	rocblas_int. lda >= n. Specifies the leading dimension of matrices A_j.
[in]	strideA	rocblas_stride. Stride from the start of one matrix A_j to the next one A_(j+1). There is no restriction for the value of strideA. Normal use case is strideA >= lda*n
[in]	ipiv	pointer to rocblas_int. Array on the GPU (the size depends on the value of strideP). The pivot indices returned by GETRF_STRIDED_BATCHED.
[in]	strideP	rocblas_stride. Stride from the start of one vector ipiv_j to the next one ipiv_(j+1). There is no restriction for the value of strideP. Normal use case is strideP >= n.
[out]	C	pointer to type. Array on the GPU (the size depends on the value of strideC). If info[j] = 0, the inverse of matrices A_j. Otherwise, undefined.
[in]	ldc	rocblas_int. ldc >= n. Specifies the leading dimension of C_j.
[in]	strideC	rocblas_stride. Stride from the start of one matrix C_j to the next one C_(j+1). There is no restriction for the value of strideC. Normal use case is strideC >= ldc*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_outofplace_strided_batched_()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetri_outofplace_strided_batched::rocsolver_sgetri_outofplace_strided_batched_	(	type(c_ptr), value	handle,
		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	ipiv,
		integer(c_int64_t), value	strideP,
		type(c_ptr), value	C,
		integer(c_int), value	ldc,
		integer(c_int64_t), value	strideC,
		integer(c_int)	myInfo,
		integer(c_int), value	batch_count
	)

◆ rocsolver_sgetri_outofplace_strided_batched_full_rank()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetri_outofplace_strided_batched::rocsolver_sgetri_outofplace_strided_batched_full_rank	(	type(c_ptr)	handle,
		integer(c_int)	n,
		real(c_float), dimension(:,:), target	A,
		integer(c_int)	lda,
		integer(c_int64_t)	strideA,
		integer(c_int), dimension(:), target	ipiv,
		integer(c_int64_t)	strideP,
		real(c_float), dimension(:,:), target	C,
		integer(c_int)	ldc,
		integer(c_int64_t)	strideC,
		integer(c_int)	myInfo,
		integer(c_int)	batch_count
	)

◆ rocsolver_sgetri_outofplace_strided_batched_rank_0()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetri_outofplace_strided_batched::rocsolver_sgetri_outofplace_strided_batched_rank_0	(	type(c_ptr)	handle,
		integer(c_int)	n,
		real(c_float), target	A,
		integer(c_int)	lda,
		integer(c_int64_t)	strideA,
		integer(c_int), target	ipiv,
		integer(c_int64_t)	strideP,
		real(c_float), target	C,
		integer(c_int)	ldc,
		integer(c_int64_t)	strideC,
		integer(c_int)	myInfo,
		integer(c_int)	batch_count
	)

◆ rocsolver_sgetri_outofplace_strided_batched_rank_1()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetri_outofplace_strided_batched::rocsolver_sgetri_outofplace_strided_batched_rank_1	(	type(c_ptr)	handle,
		integer(c_int)	n,
		real(c_float), dimension(:), target	A,
		integer(c_int)	lda,
		integer(c_int64_t)	strideA,
		integer(c_int), dimension(:), target	ipiv,
		integer(c_int64_t)	strideP,
		real(c_float), dimension(:), target	C,
		integer(c_int)	ldc,
		integer(c_int64_t)	strideC,
		integer(c_int)	myInfo,
		integer(c_int)	batch_count
	)

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The documentation for this interface was generated from the following file:

• hipfort_rocsolver.f