rocblas_drotmg_batched Interface Reference#
hipfort_rocblas::rocblas_drotmg_batched Interface Reference
! More...
Public Member Functions | |
| integer(kind(rocblas_status_success)) function | rocblas_drotmg_batched_ (handle, d1, d2, x1, y1, param, batch_count) |
Detailed Description
!
BLAS Level 1 API
\details
rotmg_batched creates the modified Givens rotation matrix for the batched vectors (d1_i x1_i, d2_i y1_i), for i = 1, ..., batch_count.
Parameters may be stored in either host or device memory, location is specified by calling rocblas_set_pointer_mode.
If the pointer mode is set to rocblas_pointer_mode_host, this function blocks the CPU until the GPU has finished and the results are available in host memory.
If the pointer mode is set to rocblas_pointer_mode_device, this function returns immediately and synchronization is required to read the results.
@param[in]
handle [rocblas_handle]
handle to the rocblas library context queue.
@param[inout]
d1 device batched array or host batched array of input scalars that is overwritten.
@param[inout]
d2 device batched array or host batched array of input scalars that is overwritten.
@param[inout]
x1 device batched array or host batched array of input scalars that is overwritten.
@param[in]
y1 device batched array or host batched array of input scalars.
@param[out]
param device batched array or host batched array of vectors of 5 elements defining the rotation.
param[0] = flag
param[1] = H11
param[2] = H21
param[3] = H12
param[4] = H22
The flag parameter defines the form of H:
flag = -1 => H = ( H11 H12 H21 H22 )
flag = 0 => H = ( 1.0 H12 H21 1.0 )
flag = 1 => H = ( H11 1.0 -1.0 H22 )
flag = -2 => H = ( 1.0 0.0 0.0 1.0 )
param may be stored in either host or device memory, location is specified by calling rocblas_set_pointer_mode.
@param[in]
batch_count [rocblas_int]
the number of instances in the batch.
Member Function/Subroutine Documentation
◆ rocblas_drotmg_batched_()
| integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_drotmg_batched::rocblas_drotmg_batched_ | ( | type(c_ptr), value | handle, |
| type(c_ptr) | d1, | ||
| type(c_ptr) | d2, | ||
| type(c_ptr) | x1, | ||
| type(c_ptr) | y1, | ||
| type(c_ptr) | param, | ||
| integer(c_int), value | batch_count | ||
| ) |
The documentation for this interface was generated from the following file: