rocblas_zgbmv Interface Reference#
hipfort_rocblas::rocblas_zgbmv Interface Reference
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Public Member Functions | |
| integer(kind(rocblas_status_success)) function | rocblas_zgbmv_ (handle, trans, m, n, kl, ku, alpha, A, lda, x, incx, beta, y, incy) |
| integer(kind(rocblas_status_success)) function | rocblas_zgbmv_full_rank (handle, trans, m, n, kl, ku, alpha, A, lda, x, incx, beta, y, incy) |
| integer(kind(rocblas_status_success)) function | rocblas_zgbmv_rank_0 (handle, trans, m, n, kl, ku, alpha, A, lda, x, incx, beta, y, incy) |
| integer(kind(rocblas_status_success)) function | rocblas_zgbmv_rank_1 (handle, trans, m, n, kl, ku, alpha, A, lda, x, incx, beta, y, incy) |
Detailed Description
!
BLAS Level 2 API
\details
xGBMV performs one of the matrix-vector operations
y := alphaAx + betay, or
y := alphaATx + betay, or
y := alphaAHx + betay,
where alpha and beta are scalars, x and y are vectors and A is an
m by n banded matrix with kl sub-diagonals and ku super-diagonals.
@param[in]
handle [rocblas_handle]
handle to the rocblas library context queue.
@param[in]
trans [rocblas_operation]
indicates whether matrix A is tranposed (conjugated) or not
@param[in]
m [rocblas_int]
number of rows of matrix A
@param[in]
n [rocblas_int]
number of columns of matrix A
@param[in]
kl [rocblas_int]
number of sub-diagonals of A
@param[in]
ku [rocblas_int]
number of super-diagonals of A
@param[in]
alpha device pointer or host pointer to scalar alpha.
@param[in]
A device pointer storing banded matrix A.
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
subsuper-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.
@param[in]
lda [rocblas_int]
specifies the leading dimension of A. Must be >= (kl + ku + 1)
@param[in]
x device pointer storing vector x.
@param[in]
incx [rocblas_int]
specifies the increment for the elements of x.
@param[in]
beta device pointer or host pointer to scalar beta.
@param[inout]
y device pointer storing vector y.
@param[in]
incy [rocblas_int]
specifies the increment for the elements of y.
Member Function/Subroutine Documentation
◆ rocblas_zgbmv_()
| integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_zgbmv::rocblas_zgbmv_ | ( | 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), value | A, | ||
| integer(c_int), value | lda, | ||
| type(c_ptr), value | x, | ||
| integer(c_int), value | incx, | ||
| complex(c_double_complex) | beta, | ||
| type(c_ptr), value | y, | ||
| integer(c_int), value | incy | ||
| ) |
◆ rocblas_zgbmv_full_rank()
| integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_zgbmv::rocblas_zgbmv_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 | ||
| ) |
◆ rocblas_zgbmv_rank_0()
| integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_zgbmv::rocblas_zgbmv_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 | ||
| ) |
◆ rocblas_zgbmv_rank_1()
| integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_zgbmv::rocblas_zgbmv_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 | ||
| ) |
The documentation for this interface was generated from the following file: