axpy: Add vectors

\(y = \alpha x + y\) More...

Functions
template<typename TX , typename TY >
void	blas::axpy (int64_t n, blas::scalar_type< TX, TY > alpha, TX const *x, int64_t incx, TY *y, int64_t incy)
	Add scaled vector, \(y = \alpha x + y\).
void	blas::axpy (int64_t n, float alpha, float const *x, int64_t incx, float *y, int64_t incy)
	CPU, float version.
void	blas::axpy (int64_t n, double alpha, double const *x, int64_t incx, double *y, int64_t incy)
	CPU, double version.
void	blas::axpy (int64_t n, std::complex< float > alpha, std::complex< float > const *x, int64_t incx, std::complex< float > *y, int64_t incy)
	CPU, complex<float> version.
void	blas::axpy (int64_t n, std::complex< double > alpha, std::complex< double > const *x, int64_t incx, std::complex< double > *y, int64_t incy)
	CPU, complex<double> version.
void	blas::axpy (int64_t n, float alpha, float const *x, int64_t incx, float *y, int64_t incy, blas::Queue &queue)
	GPU device, float version.
void	blas::axpy (int64_t n, double alpha, double const *x, int64_t incx, double *y, int64_t incy, blas::Queue &queue)
	GPU device, double version.
void	blas::axpy (int64_t n, std::complex< float > alpha, std::complex< float > const *x, int64_t incx, std::complex< float > *y, int64_t incy, blas::Queue &queue)
	GPU device, complex<float> version.
void	blas::axpy (int64_t n, std::complex< double > alpha, std::complex< double > const *x, int64_t incx, std::complex< double > *y, int64_t incy, blas::Queue &queue)
	GPU device, complex<double> version.

Detailed Description

\(y = \alpha x + y\)

Function Documentation

axpy()

template<typename TX , typename TY >

void blas::axpy	(	int64_t	n,
		blas::scalar_type< TX, TY >	alpha,
		TX const *	x,
		int64_t	incx,
		TY *	y,
		int64_t	incy
	)

Add scaled vector, \(y = \alpha x + y\).

Generic implementation for arbitrary data types.

Parameters

[in]	n	Number of elements in x and y. n >= 0.
[in]	alpha	Scalar alpha. If alpha is zero, y is not updated.
[in]	x	The n-element vector x, in an array of length (n-1)*abs(incx) + 1.
[in]	incx	Stride between elements of x. incx must not be zero. If incx < 0, uses elements of x in reverse order: x(n-1), ..., x(0).
[in,out]	y	The n-element vector y, in an array of length (n-1)*abs(incy) + 1.
[in]	incy	Stride between elements of y. incy must not be zero. If incy < 0, uses elements of y in reverse order: y(n-1), ..., y(0).