rot (USM Version)¶
Performs rotation of points in the plane.
Description¶
Given two vectors x
and y
of n
elements, the rot
routines
compute four scalar-vector products and update the input vectors with
the sum of two of these scalar-vector products as follow:
API¶
Syntax¶
namespace oneapi::mkl::blas::column_major {
sycl::event rot(sycl::queue &queue,
std::int64_t n,
T *x,
std::int64_t incx,
T *y,
std::int64_t incy,
T_scalar c,
T_scalar s,
const std::vector<sycl::event> &dependencies = {})
}
namespace oneapi::mkl::blas::row_major {
sycl::event rot(sycl::queue &queue,
std::int64_t n,
T *x,
std::int64_t incx,
T *y,
std::int64_t incy,
T_scalar c,
T_scalar s,
const std::vector<sycl::event> &dependencies = {})
}
The USM version of rot
supports the following precisions and devices.
T |
T_scalar |
Devices Supported |
---|---|---|
|
|
Host, CPU, and GPU |
|
|
Host, CPU, and GPU |
|
|
Host, CPU, and GPU |
|
|
Host, CPU, and GPU |
Input Parameters¶
- exec_queue
The queue where the routine should be executed.
- n
Number of elements in vector
x
.- x
Pointer to input vector
x
. The array holding input vectorx
must be of size at least (1 + (n
- 1)*abs(incx
)). See Matrix Storage for more details.- incx
Stride of vector x.
- y
Pointer to input vector
y
. The array holding input vectory
must be of size at least (1 + (n
- 1)*abs(incy
)). See Matrix Storage for more details.- incy
Stride of vector y.
- c
Scaling factor.
- s
Scaling factor.
- 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 matrix
x
.- y
Pointer to the updated matrix
y
.
Return Values¶
Output event to wait on to ensure computation is complete.