dotu (USM Version)¶
Computes the dot product of two complex vectors.
Syntax
namespace oneapi::mkl::blas { event dotu(queue &exec_queue, std::int64_t n, const T *x, std::int64_t incx, const T *y, std::int64_t incy, T *result, const vector_class<event> &dependencies = {}) }The USM version of
dotu
supports the following precisions and devices.
T
Devices Supported
std::complex<float>
Host, CPU, and GPU
std::complex<double>
Host, CPU, and GPU
Description
The dotu routines perform a dot product between two complex vectors:
\mathrm{result} = \sum_{i=1}^n X_i Y_i
Input Parameters
- exec_queue
The queue where the routine should be executed.
- n
Number of elements in vectors
x
andy
.- x
Pointer to the input vector
x
. The array holding input vectorx
must be of size at least (1 + (n
- 1)*abs(incx
)). See Matrix Storage for more details.- incx
Stride of vector x.
- y
Pointer to input vector
y
. The array holding input vectory
must be of size at least (1 + (n
- 1)*abs(incy
)). See Matrix Storage for more details.- incy
Stride of vector y.
- dependencies
List of events to wait for before starting computation, if any. If omitted, defaults to no dependencies.
Output Parameters
- result
Pointer to where the result (a scalar) is stored.
Return Values
Output event to wait on to ensure computation is complete.