rocsolver_sgetrs_batched Interface Reference

• hipfort_rocsolver
• rocsolver_sgetrs_batched

Public Member Functions | List of all members

hipfort_rocsolver::rocsolver_sgetrs_batched Interface Reference

GETRS_BATCHED solves a batch of systems of n linear equations on n variables in its factorized forms. More...

Public Member Functions
integer(kind(rocblas_status_success)) function	rocsolver_sgetrs_batched_ (handle, trans, n, nrhs, A, lda, ipiv, strideP, B, ldb, batch_count)
integer(kind(rocblas_status_success)) function	rocsolver_sgetrs_batched_full_rank (handle, trans, n, nrhs, A, lda, ipiv, strideP, B, ldb, batch_count)
integer(kind(rocblas_status_success)) function	rocsolver_sgetrs_batched_rank_0 (handle, trans, n, nrhs, A, lda, ipiv, strideP, B, ldb, batch_count)
integer(kind(rocblas_status_success)) function	rocsolver_sgetrs_batched_rank_1 (handle, trans, n, nrhs, A, lda, ipiv, strideP, B, ldb, batch_count)

Detailed Description

GETRS_BATCHED solves a batch of systems of n linear equations on n variables in its factorized forms.

For each instance j in the batch, it solves one of the following systems, depending on the value of trans:

\[ \begin{array}{cl} A_j X_j = B_j & \: \text{not transposed,}\newline A_j^T X_j = B_j & \: \text{transposed, or}\newline A_j^H X_j = B_j & \: \text{conjugate transposed.} \end{array} \]

Matrix \(A_j\) is defined by its triangular factors as returned by GETRF_BATCHED.

Parameters

[in]	handle	rocblas_handle.
[in]	trans	rocblas_operation. Specifies the form of the system of equations of each instance in the batch.
[in]	n	rocblas_int. n >= 0. The order of the system, i.e. the number of columns and rows of all A_j matrices.
[in]	nrhs	rocblas_int. nrhs >= 0. The number of right hand sides, i.e., the number of columns of all the matrices B_j.
[in]	A	Array of pointers to type. Each pointer points to an array on the GPU of dimension lda*n. The factors L_j and U_j of the factorization A_j = P_j*L_j*U_j returned by GETRF_BATCHED.
[in]	lda	rocblas_int. lda >= n. 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). Contains the vectors ipiv_j of pivot indices returned by GETRF_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.
[in,out]	B	Array of pointers to type. Each pointer points to an array on the GPU of dimension ldb*nrhs. On entry, the right hand side matrices B_j. On exit, the solution matrix X_j of each system in the batch.
[in]	ldb	rocblas_int. ldb >= n. The leading dimension of matrices B_j.
[in]	batch_count	rocblas_int. batch_count >= 0. Number of instances (systems) in the batch.

Member Function/Subroutine Documentation

◆ rocsolver_sgetrs_batched_()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetrs_batched::rocsolver_sgetrs_batched_	(	type(c_ptr), value	handle,
		integer(kind(rocblas_operation_none)), value	trans,
		integer(c_int), value	n,
		integer(c_int), value	nrhs,
		type(c_ptr)	A,
		integer(c_int), value	lda,
		type(c_ptr), value	ipiv,
		integer(c_int64_t), value	strideP,
		type(c_ptr)	B,
		integer(c_int), value	ldb,
		integer(c_int), value	batch_count
	)

◆ rocsolver_sgetrs_batched_full_rank()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetrs_batched::rocsolver_sgetrs_batched_full_rank	(	type(c_ptr)	handle,
		integer(kind(rocblas_operation_none))	trans,
		integer(c_int)	n,
		integer(c_int)	nrhs,
		real(c_float), dimension(:,:,:), target	A,
		integer(c_int)	lda,
		integer(c_int), dimension(:), target	ipiv,
		integer(c_int64_t)	strideP,
		real(c_float), dimension(:,:,:), target	B,
		integer(c_int)	ldb,
		integer(c_int)	batch_count
	)

◆ rocsolver_sgetrs_batched_rank_0()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetrs_batched::rocsolver_sgetrs_batched_rank_0	(	type(c_ptr)	handle,
		integer(kind(rocblas_operation_none))	trans,
		integer(c_int)	n,
		integer(c_int)	nrhs,
		real(c_float), target	A,
		integer(c_int)	lda,
		integer(c_int), target	ipiv,
		integer(c_int64_t)	strideP,
		real(c_float), target	B,
		integer(c_int)	ldb,
		integer(c_int)	batch_count
	)

◆ rocsolver_sgetrs_batched_rank_1()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_sgetrs_batched::rocsolver_sgetrs_batched_rank_1	(	type(c_ptr)	handle,
		integer(kind(rocblas_operation_none))	trans,
		integer(c_int)	n,
		integer(c_int)	nrhs,
		real(c_float), dimension(:), target	A,
		integer(c_int)	lda,
		integer(c_int), dimension(:), target	ipiv,
		integer(c_int64_t)	strideP,
		real(c_float), dimension(:), target	B,
		integer(c_int)	ldb,
		integer(c_int)	batch_count
	)

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

• hipfort_rocsolver.f