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
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[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.
Member Function/Subroutine Documentation
◆ 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: