Visible to Intel only — GUID: GUID-E7CBCEEF-A74A-45E6-94B1-A35C6F70B6E6
Visible to Intel only — GUID: GUID-E7CBCEEF-A74A-45E6-94B1-A35C6F70B6E6
dotc
Computes the dot product of two complex vectors, conjugating the first vector.
Description
The dotc routines perform a dot product between two complex vectors, conjugating the first one. The operation is defined as:
dotc supports the following precisions:
T |
---|
std::complex<float> |
std::complex<double> |
dotc (Buffer Version)
Syntax
namespace oneapi::mkl::blas::column_major {
void dotc(sycl::queue &queue,
std::int64_t n,
sycl::buffer<T,1> &x,
std::int64_t incx,
sycl::buffer<T,1> &y,
std::int64_t incy,
sycl::buffer<T,1> &result)
}
namespace oneapi::mkl::blas::row_major {
void dotc(sycl::queue &queue,
std::int64_t n,
sycl::buffer<T,1> &x,
std::int64_t incx,
sycl::buffer<T,1> &y,
std::int64_t incy,
sycl::buffer<T,1> &result)
}
Input Parameters
- queue
-
The queue where the routine should be executed.
- n
-
The number of elements in vectors x and y.
- x
-
Buffer holding input vector x. Size of the buffer must be 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. Size of the buffer must be 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.
dotc (USM Version)
Syntax
namespace oneapi::mkl::blas::column_major {
sycl::event dotc(sycl::queue &queue,
std::int64_t n,
const T *x,
std::int64_t incx,
const T *y,
std::int64_t incy,
T *result,
const std::vector<sycl::event> &dependencies = {})
}
namespace oneapi::mkl::blas::row_major {
sycl::event dotc(sycl::queue &queue,
std::int64_t n,
const T *x,
std::int64_t incx,
const T *y,
std::int64_t incy,
T *result,
const std::vector<sycl::event> &dependencies = {})
}
Input Parameters
- queue
-
The queue where the routine should be executed.
- n
-
The number of elements in vectors x and y.
- x
-
Pointer to input vector x. Size of the array holding input vector x must be at least (1 + (n - 1)*abs(incx)). See Matrix Storage for more details.
- incx
-
The stride of vector x.
- y
-
Pointer to input vector y. Size of the array holding input vector y must be at least (1 + (n - 1)*abs(incy)). See Matrix Storage for more details.
- incy
-
The 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
-
The pointer to where the result (a scalar) is stored.
Return Values
Output event to wait on to ensure computation is complete.