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rot

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. The operation is defined as:
LaTex Math image.
If
s
is a complex type, the operation is defined as:
LaTex Math image.
rot
supports the following precisions:
T
T_scalarC
T_scalarS
sycl::half
sycl::half
sycl::half
oneapi::mkl::bfloat16
oneapi::mkl::bfloat16
oneapi::mkl::bfloat16
float
float
float
double
double
double
std::complex<float>
float
std::complex<float>
std::complex<double>
double
std::complex<double>
std::complex<float>
float
float
std::complex<double>
double
double

rot (Buffer Version)

Syntax
namespace oneapi::mkl::blas::column_major { void rot(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, T_scalarC c, T_scalarS s) }
namespace oneapi::mkl::blas::row_major { void rot(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, T_scalarC c, T_scalarS s) }
Input Parameters
queue
The queue where the routine should be executed.
n
Number of elements in vector
x
.
x
Buffer holding input vector
x
. Size of the buffer must be at least (1 + (
n
- 1)*abs(
incx
)). See Matrix Storage for more details.
incx
Stride of vector
x
.
y
Buffer holding input vector
y
. Size of the buffer must be at least (1 + (
n
- 1)*abs(
incy
)). See Matrix Storage for more details.
incy
Stride of vector
y
.
c
Scaling factor.
s
Scaling factor.
Output Parameters
x
Buffer holding updated buffer
x
.
y
Buffer holding updated buffer
y
.

rot (USM Version)

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_scalarC c, T_scalarS 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_scalarC c, T_scalarS s, 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 input vector
x
. Size of the array holding input vector
x
must be at least (1 + (
n
- 1)*abs(
incx
)). See Matrix Storage for more details.
incx
Stride of vector
x
.
y
Pointer to input vector
y
. Size of the array holding input vector
y
must be 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 updated vector
x
.
y
Pointer to updated vector
y
.
Return Values
Output event to wait on to ensure computation is complete.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.