rocblas_stbsv_batched Interface Reference

rocblas_stbsv_batched Interface Reference#

HIPFORT API Reference: hipfort_rocblas::rocblas_stbsv_batched Interface Reference
Public Member Functions | List of all members
hipfort_rocblas::rocblas_stbsv_batched Interface Reference

BLAS Level 2 API. More...

Public Member Functions

integer(kind(rocblas_status_success)) function rocblas_stbsv_batched_ (handle, uplo, transa, diag, n, k, a, lda, x, incx, batch_count)
 

Detailed Description

BLAS Level 2 API.

The tbsv_batched functions solve: 

 A_i*x_i = b_i or
 A_i**T*x_i = b_i or
 A_i**H*x_i = b_i

where x_i and b_i are vectors and A_i is a banded triangular matrix, for i = [1, batch_count].

The input vectors b_i are overwritten by the output vectors x_i.

Parameters
[in]handle- [rocblas_handle] handle to the rocBLAS library context queue.
[in]uplo- [rocblas_fill]
  • rocblas_fill_upper: A_i is an upper triangular matrix.
  • rocblas_fill_lower: A_i is a lower triangular matrix.
[in]transA- [rocblas_operation]
  • rocblas_operation_none: Solves A_i*x_i = b_i
  • rocblas_operation_transpose: Solves A_i**T*x_i = b_i
  • rocblas_operation_conjugate_transpose: Solves A_i**H*x_i = b_i
[in]diag- [rocblas_diagonal]
  • rocblas_diagonal_unit: each A_i is assumed to be unit triangular (the diagonal elements of each A_i are not used in computations).
  • rocblas_diagonal_non_unit: each A_i is not assumed to be unit triangular.
[in]n- [rocblas_int] n specifies the number of rows of each b_i. n >= 0.
[in]k- [rocblas_int] 
    if(uplo == rocblas_fill_upper)
        k specifies the number of super-diagonals of each A_i.
    if(uplo == rocblas_fill_lower)
        k specifies the number of sub-diagonals of each A_i.
    k >= 0.
[in]A- device vector of device pointers storing each matrix A_i in banded format.
[in]lda- [rocblas_int] specifies the leading dimension of each A_i. lda >= (k + 1).
[in,out]x- device vector of device pointers storing each input vector b_i. Overwritten by each output vector x_i.
[in]incx- [rocblas_int] specifies the increment for the elements of each x_i.
[in]batch_count- [rocblas_int] number of instances in the batch.

Member Function/Subroutine Documentation

◆ rocblas_stbsv_batched_()

integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_stbsv_batched::rocblas_stbsv_batched_ ( type(c_ptr), value  handle,
integer(kind(rocblas_fill_upper)), value  uplo,
integer(kind(rocblas_operation_none)), value  transa,
integer(kind(rocblas_diagonal_non_unit)), value  diag,
integer(c_int), value  n,
integer(c_int), value  k,
type(c_ptr), value  a,
integer(c_int), value  lda,
type(c_ptr), value  x,
integer(c_int), value  incx,
integer(c_int), value  batch_count 
)
The documentation for this interface was generated from the following file: