copy#
Copies a vector to another vector.
Description
The copy
routines copy one vector to another:
where x
and y
are vectors of n elements.
copy
supports the following precisions.
T
float
double
std::complex<float>
std::complex<double>
copy (Buffer Version)#
Syntax
namespace oneapi::mkl::blas::column_major {
void copy(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)
}
namespace oneapi::mkl::blas::row_major {
void copy(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)
}
Input Parameters
- queue
The queue where the routine should be executed.
- n
Number of elements in vector
x
.- 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
Stride of vector
x
.- incy
Stride of vector
y
.
Output Parameters
- y
Buffer holding the updated vector
y
.
copy (USM Version)#
Syntax
namespace oneapi::mkl::blas::column_major {
sycl::event copy(sycl::queue &queue,
std::int64_t n,
const T *x,
std::int64_t incx,
T *y,
std::int64_t incy,
const std::vector<sycl::event> &dependencies = {})
}
namespace oneapi::mkl::blas::row_major {
sycl::event copy(sycl::queue &queue,
std::int64_t n,
const T *x,
std::int64_t incx,
T *y,
std::int64_t incy,
const std::vector<sycl::event> &dependencies = {})
}
Input Parameters
- queue
The queue where the routine should be executed.
- n
Number of elements in vector
x
.- x
Pointer to the input vector
x
. The array holding the vectorx
must be of size at least (1 + (n
– 1)*abs(incx
)). See Matrix Storage for more details.- incx
Stride of vector
x
.- 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
- y
Pointer to the updated vector
y
.
Return Values
Output event to wait on to ensure computation is complete.
Parent topic: BLAS Level 1 Routines