rocblas_zgbmv_batched Interface Reference#

HIPFORT API Reference: hipfort_rocblas::rocblas_zgbmv_batched Interface Reference
hipfort_rocblas::rocblas_zgbmv_batched Interface Reference

BLAS Level 2 API. More...

Public Member Functions

integer(kind(rocblas_status_success)) function rocblas_zgbmv_batched_ (handle, trans, m, n, kl, ku, alpha, A, lda, x, incx, beta, y, incy, batch_count)

integer(kind(rocblas_status_success)) function rocblas_zgbmv_batched_full_rank (handle, trans, m, n, kl, ku, alpha, A, lda, x, incx, beta, y, incy, batch_count)

integer(kind(rocblas_status_success)) function rocblas_zgbmv_batched_rank_0 (handle, trans, m, n, kl, ku, alpha, A, lda, x, incx, beta, y, incy, batch_count)

integer(kind(rocblas_status_success)) function rocblas_zgbmv_batched_rank_1 (handle, trans, m, n, kl, ku, alpha, A, lda, x, incx, beta, y, incy, batch_count)

Detailed Description

BLAS Level 2 API.

gbmv_batched performs one of the matrix-vector operations

y_i := alpha*A_i*x_i    + beta*y_i,   or
y_i := alpha*A_i**T*x_i + beta*y_i,   or
y_i := alpha*A_i**H*x_i + beta*y_i,


where (A_i, x_i, y_i) is the i-th instance of the batch. alpha and beta are scalars, x_i and y_i are vectors and A_i is an m by n banded matrix with kl sub-diagonals and ku super-diagonals, for i = 1, ..., batch_count.

Parameters
 [in] handle [rocblas_handle] handle to the rocblas library context queue. [in] trans [rocblas_operation] indicates whether matrix A is tranposed (conjugated) or not [in] m [rocblas_int] number of rows of each matrix A_i [in] n [rocblas_int] number of columns of each matrix A_i [in] kl [rocblas_int] number of sub-diagonals of each A_i [in] ku [rocblas_int] number of super-diagonals of each A_i [in] alpha device pointer or host pointer to scalar alpha. [in] A device array of device pointers storing each banded matrix A_i. Leading (kl + ku + 1) by n part of the matrix contains the coefficients of the banded matrix. The leading diagonal resides in row (ku + 1) with the first super-diagonal above on the RHS of row ku. The first sub-diagonal resides below on the LHS of row ku + 2. This propogates up and down across sub/super-diagonals. Ex: (m = n = 7; ku = 2, kl = 2) 1 2 3 0 0 0 0 0 0 3 3 3 3 3 4 1 2 3 0 0 0 0 2 2 2 2 2 2 5 4 1 2 3 0 0 -—> 1 1 1 1 1 1 1 0 5 4 1 2 3 0 4 4 4 4 4 4 0 0 0 5 4 1 2 0 5 5 5 5 5 0 0 0 0 0 5 4 1 2 0 0 0 0 0 0 0 0 0 0 0 5 4 1 0 0 0 0 0 0 0 Note that the empty elements which don't correspond to data will not be referenced. [in] lda [rocblas_int] specifies the leading dimension of each A_i. Must be >= (kl + ku + 1) [in] x device array of device pointers storing each vector x_i. [in] incx [rocblas_int] specifies the increment for the elements of each x_i. [in] beta device pointer or host pointer to scalar beta. [in,out] y device array of device pointers storing each vector y_i. [in] incy [rocblas_int] specifies the increment for the elements of each y_i. [in] batch_count [rocblas_int] specifies the number of instances in the batch.

◆ rocblas_zgbmv_batched_()

 integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_zgbmv_batched::rocblas_zgbmv_batched_ ( type(c_ptr), value handle, integer(kind(rocblas_operation_none)), value trans, integer(c_int), value m, integer(c_int), value n, integer(c_int), value kl, integer(c_int), value ku, complex(c_double_complex) alpha, type(c_ptr) A, integer(c_int), value lda, type(c_ptr) x, integer(c_int), value incx, complex(c_double_complex) beta, type(c_ptr) y, integer(c_int), value incy, integer(c_int), value batch_count )

◆ rocblas_zgbmv_batched_full_rank()

 integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_zgbmv_batched::rocblas_zgbmv_batched_full_rank ( type(c_ptr) handle, integer(kind(rocblas_operation_none)) trans, integer(c_int) m, integer(c_int) n, integer(c_int) kl, integer(c_int) ku, complex(c_double_complex) alpha, complex(c_double_complex), dimension(:,:,:), target A, integer(c_int) lda, complex(c_double_complex), dimension(:,:), target x, integer(c_int) incx, complex(c_double_complex) beta, complex(c_double_complex), dimension(:,:), target y, integer(c_int) incy, integer(c_int) batch_count )

◆ rocblas_zgbmv_batched_rank_0()

 integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_zgbmv_batched::rocblas_zgbmv_batched_rank_0 ( type(c_ptr) handle, integer(kind(rocblas_operation_none)) trans, integer(c_int) m, integer(c_int) n, integer(c_int) kl, integer(c_int) ku, complex(c_double_complex) alpha, complex(c_double_complex), target A, integer(c_int) lda, complex(c_double_complex), target x, integer(c_int) incx, complex(c_double_complex) beta, complex(c_double_complex), target y, integer(c_int) incy, integer(c_int) batch_count )

◆ rocblas_zgbmv_batched_rank_1()

 integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_zgbmv_batched::rocblas_zgbmv_batched_rank_1 ( type(c_ptr) handle, integer(kind(rocblas_operation_none)) trans, integer(c_int) m, integer(c_int) n, integer(c_int) kl, integer(c_int) ku, complex(c_double_complex) alpha, complex(c_double_complex), dimension(:), target A, integer(c_int) lda, complex(c_double_complex), dimension(:), target x, integer(c_int) incx, complex(c_double_complex) beta, complex(c_double_complex), dimension(:), target y, integer(c_int) incy, integer(c_int) batch_count )

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