swap¶
Swaps a vector with another vector.
swapsupports the following precisions.
T
float
double
std::complex<float>
std::complex<double>
Description
Given two vectors of n elements, x and y, the swap
routines return vectors y and x swapped, each replacing the
other.
y <- x, x <- y
swap (Buffer Version)¶
Syntax
-
void
onemkl::blas::swap(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 and Vector Storage for more details.- incx
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 and Vector Storage for more details.- incy
Stride of vector
y.
Output Parameters
- x
Buffer holding updated buffer
x, that is, the input vectory.- y
Buffer holding updated buffer
y, that is, the input vectorx.
swap (USM Version)¶
Syntax
-
sycl::event
onemkl::blas::swap(sycl::queue &queue, std::int64_t n, 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 must be of size at least (1 + (n- 1)*abs(incx)). See Matrix and Vector Storage for more details.- incx
Stride of vector
x.- y
Pointer to the input vector
y. The array must be of size at least (1 + (n- 1)*abs(incy)). See Matrix and Vector Storage for more details.- 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
- x
Pointer to the updated array
x, that is, the input vectory.- y
Pointer to the updated array
y, that is, the input vectorx.
Return Values
Output event to wait on to ensure computation is complete.
Parent topic: BLAS Level 1 Routines