dotu (USM Version)

Computes the dot product of two complex vectors.

Syntax

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:

image0

Input Parameters

exec_queue

The queue where the routine should be executed.

n

Number of elements in vectors x and y.

x

Pointer to the input vector x. The array holding input vector x must be of size at least (1 + (n - 1)*abs(incx)). See Matrix and Vector Storage for more details.

incx

Stride of vector x.

y

Pointer to input vector y. The array holding input vector y must be of size at least (1 + (n - 1)*abs(incy)). See Matrix and Vector 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.

dotu iamax