mdp_site Class Reference

site object to loop on a lattice More...

#include <mdp_site.h>

List of all members.

Public Member Functions
	mdp_site ()
	value of the mdp_site in local coordinate
	mdp_site (const mdp_lattice &a)
void	on (const mdp_lattice &a)
mdp_lattice &	lattice ()
	returns by reference the lattice the site lives on
	mdp_site (long i, mdp_lattice *ptr2)
	mdp_site (const mdp_site &x)
mdp_site	operator= (long i)
mdp_site	operator= (mdp_site x)
int	operator== (mdp_site x)
int	operator!= (mdp_site x)
void	start (int np=0)
void	next ()
int	is_in ()
int	is_here ()
int	parity ()
	returns the parity EVEN or ODD of the site
int	is_in_boundary ()
long	local_index ()
long	global_index ()
	returns the global (unique) index of the site
void	set_local (long idx2)
	sets the site by its local index (dangerous)
void	set_global (long idx_gl)
	sets the site by its global index
mdp_site	operator+ (int mu)
	returns the site shifted forward in direction mu=(0...ndim-1)
mdp_site	operator- (int mu)
	returns the site shifted backwards in direction mu=(0...ndim-1)
mdp_site	hop (int i, int mu)
mdp_site	operator= (mdp_vector v)
	sets the site to the coordinates stored in vector v
mdp_site	operator+ (mdp_vector v)
mdp_site	operator- (mdp_vector v)
int	operator() (int mu)
	returns mu coordinate of the site
void	operator= (int *x)
void	set (int x0, int x1=0, int x2=0, int x3=0, int x4=0, int x5=0, int x6=0, int x7=0, int x8=0, int x9=0)
int	operator== (int *x)
int	operator!= (int *x)
int	is_equal (int x0, int x1=0, int x2=0, int x3=0, int x4=0, int x5=0, int x6=0, int x7=0, int x8=0, int x9=0)
	checks the site coordinates vs the coordinates passed as args
Public Attributes
long	idx
	this points to the lattice for this field
Friends
long	site2binary (mdp_site x)
int	on_which_process (mdp_lattice &a, int x0=0, int x1=0, int x2=0, int x3=0, int x4=0, int x5=0, int x6=0, int x7=0, int x8=0, int x9=0)

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Detailed Description

site object to loop on a lattice

Example:

      int box[]={10,10,10};
      mdp_lattice lattice(3,box);
      mdp_site x(lattice);
      forallsites(x) cout << x << endl;
      if(on_which_process(lattice,1,1,1)==ME) {
         x.set(1,1,1);
         cout << lattice.random(x).plain() << endl;
      }
    

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Constructor & Destructor Documentation

mdp_site::mdp_site (  const mdp_lattice &  a  )  [inline]

declares object of class mdp_site living on the lattice passed by reference

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Member Function Documentation

mdp_site mdp_site::hop (  int  i, int  mu )  [inline]

returns a site shifted i position (backwards if i<0 or forward if i>0) in direction mu=(0...mdim-1)

int mdp_site::is_here (   )  [inline]

checks if the site is inside the portion of the lattice stored by the current process or if the site is in a local copy of a remote site

int mdp_site::is_in (   )  [inline]

checks if the site is inside the portion of the lattice stored by the current process

int mdp_site::is_in_boundary (   )  [inline]

true if the site is stored locally as a copy of a site local in another process

long mdp_site::local_index (   )  [inline]

returns the local index of the site local index is assigned by the process to the local sites and copies of remote sites. local index is not unique thoughout the lattice.

mdp_site mdp_site::operator+ (  mdp_vector  v  )  [inline]

retruns a site similar to the present but each coordinates mu of the site shifted according to v[mu]

mdp_site mdp_site::operator- (  mdp_vector  v  )  [inline]

retruns a site similar to the present but each coordinates mu of the site shifted according to -v[mu]

void mdp_site::set (  int  x0, int  x1 = 0, int  x2 = 0, int  x3 = 0, int  x4 = 0, int  x5 = 0, int  x6 = 0, int  x7 = 0, int  x8 = 0, int  x9 = 0 )  [inline]

sets the site to a the location spacified by the coordinates and assumes the site is local (or at least a copy) See also: on_which_process()

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Friends And Related Function Documentation

int on_which_process (  mdp_lattice &  a, int  x0 = 0, int  x1 = 0, int  x2 = 0, int  x3 = 0, int  x4 = 0, int  x5 = 0, int  x6 = 0, int  x7 = 0, int  x8 = 0, int  x9 = 0 )  [friend]

checks which process of the lattice a stores locally the site of coordinates x0,x1,x2,...,x9 to be used before calling mdp_site::set()

long site2binary (  mdp_site  x  )  [friend]

converts a site into a binary number to be used only if the site is a vertex of an hypercube centered at the origin. this is used to make staggered mesons

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The documentation for this class was generated from the following file:

• mdp_site.h

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