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.
Throws
This routine shall throw the following exceptions if the associated condition is detected. An implementation may throw additional implementation-specific exception(s) in case of error conditions not covered here.
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 sycl::vector_class<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 sycl::vector_class<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 vectorxmust 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.
Throws
This routine shall throw the following exceptions if the associated condition is detected. An implementation may throw additional implementation-specific exception(s) in case of error conditions not covered here.
oneapi::mkl::unsupported_device
Parent topic: BLAS Level 1 Routines