rocsolver_sgetrs_batched Interface Reference#
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 | ||
| ) |
The documentation for this interface was generated from the following file: