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 of them:
dotc
supports the following precisions for data.
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
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.
dotc (USM Version)#
Syntax
namespace oneapi::mkl::blas::column_major {
void 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 {
void 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
andy
.- x
Pointer to input vector
x
. The array holding the input vectorx
must be of size 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
. The array holding the input vectory
must be of size 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.
Parent topic: BLAS Level 1 Routines