dotc¶
Computes the dot product of two complex vectors, conjugating the first vector.
Syntax
namespace oneapi::mkl::blas { void dotc(queue &exec_queue, std::int64_t n, buffer<T,1> &x, std::int64_t incx, buffer<T,1> &y, std::int64_t incy, buffer<T,1> &result) }
dotc
supports the following precisions and devices:
T
Devices Supported
std::complex<float>
Host, CPU, and GPU
std::complex<double>
Host, CPU, and GPU
Description
\mathrm{res} = \sum_{i-1}^n \mathrm{conjg} (x_i) * y_i
The
dotc
routines perform a dot product between two complex vectors, conjugating the first of them:\mathrm{result} = \sum_{i=1}^n \overline{X_i} Y_i
Input Parameters
- exec_queue
The queue where the routine should be executed.
- n
The number of elements in vectors
x
andy
.- x
Buffer holding input vector
x
. The buffer must be of size at least (1 + (n
- 1)*abs(incx
)). See Matrix Storage for more details.- incx
The stride of vector
x
.- y
Buffer holding input vector
y
. The buffer must be of size at least (1 + (n
- 1)*abs(incy
)). See Matrix Storage for more details.- incy
The stride of vector
y
.Output Parameters
- result
The buffer where the result (a scalar) is stored.