vector.cpp File Reference

Backend dispatch for real-vector ops, and sequential complex-vector ops. More...

#include "core/vector.hpp"
#include <cmath>
#include "backends/seq/impl.hpp"
#include "backends/blas/impl.hpp"
#include "backends/omp/impl.hpp"
#include "backends/gpu/impl.hpp"

Go to the source code of this file.

Namespaces
namespace	num

Functions
void	num::scale (Vector &v, real alpha, Backend b=default_backend)
	v *= alpha
void	num::add (const Vector &x, const Vector &y, Vector &z, Backend b=default_backend)
	z = x + y
void	num::axpy (real alpha, const Vector &x, Vector &y, Backend b=default_backend)
	y += alpha * x
real	num::dot (const Vector &x, const Vector &y, Backend b=default_backend)
	dot product
real	num::norm (const Vector &x, Backend b=default_backend)
	Euclidean norm.
void	num::scale (CVector &v, cplx alpha)
	v *= alpha
void	num::axpy (cplx alpha, const CVector &x, CVector &y)
	y += alpha * x
cplx	num::dot (const CVector &x, const CVector &y)
	Conjugate inner product <x, y> = Sigma conj(x_i) * y_i.
real	num::norm (const CVector &x)
	Euclidean norm sqrt(Sigma |v_i|^2)

Detailed Description

Backend dispatch for real-vector ops, and sequential complex-vector ops.

BasicVector<T> member functions are defined inline in vector.hpp (template). This file only provides:

1. Backend-dispatched free functions for Vector (= BasicVector<real>)
2. Sequential free functions for CVector (= BasicVector<cplx>)

Adding a new backend:

1. Add the enumerator to enum class Backend in include/core/policy.hpp
2. Create src/core/backends/<name>/ with impl.hpp and vector.cpp
3. Add case Backend::<name>: to each switch below
4. Register the .cpp in cmake/sources.cmake

Definition in file vector.cpp.