rocblas_srotmg_batched Interface Reference#
hipfort_rocblas::rocblas_srotmg_batched Interface Reference
BLAS Level 1 API. More...
Public Member Functions | |
| integer(kind(rocblas_status_success)) function | rocblas_srotmg_batched_ (handle, d1, d2, x1, y1, param, batch_count) |
Detailed Description
BLAS Level 1 API.
The rotmg_batched functions create the modified Givens rotation matrix for the batched vectors (d1_i * x1_i, d2_i * y1_i ), for i = 1, ..., batch_count. Parameters can be stored in either host or device memory. The location is specified by calling rocblas_set_pointer_mode:
- If the pointer mode is set to
rocblas_pointer_mode_host, then 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, then this function returns immediately and synchronization is required to read the results.
- Parameters
-
[in] handle - [rocblas_handle] handle to the rocBLAS library context queue. [in,out] d1 - device batched array or host batched array of input scalars that is overwritten. [in,out] d2 - device batched array or host batched array of input scalars that is overwritten. [in,out] x1 - device batched array or host batched array of input scalars that is overwritten. [in] y1 - device batched array or host batched array of input scalars. [out] param - device batched array or host batched array of vectors of five 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 can be stored in either host or device memory. The location is specified by calling rocblas_set_pointer_mode.[in] batch_count - [rocblas_int] the number of instances in the batch.
Member Function/Subroutine Documentation
◆ rocblas_srotmg_batched_()
| integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_srotmg_batched::rocblas_srotmg_batched_ | ( | type(c_ptr), value | handle, |
| type(c_ptr), value | d1, | ||
| type(c_ptr), value | d2, | ||
| type(c_ptr), value | x1, | ||
| type(c_ptr), value | y1, | ||
| type(c_ptr), value | param, | ||
| integer(c_int), value | batch_count | ||
| ) |
The documentation for this interface was generated from the following file: