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 vectorsxandy.
- x
- Buffer holding input vectorx. Size of the buffer must be at least (1 + (n- 1)*abs(incx)). See Matrix Storage for more details.
- incx
- The stride of vectorx.
- y
- Buffer holding input vectory. Size of the buffer must be at least (1 + (n- 1)*abs(incy)). See Matrix Storage for more details.
- incy
- The stride of vectory.
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 vectorsxandy.
- x
- Pointer to input vectorx. Size of the array holding input vectorxmust be at least (1 + (n- 1)*abs(incx)). See Matrix Storage for more details.
- incx
- The stride of vectorx.
- y
- Pointer to input vectory. Size of the array holding input vectorymust be at least (1 + (n- 1)*abs(incy)). See Matrix Storage for more details.
- incy
- The stride of vectory.
- 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.