mdp_lattice Class Reference

distributed lattice object More...

#include <mdp_lattice.h>

List of all members.

Public Member Functions
long	global_coordinate (int *x)
void	global_coordinate (long global_idx, int *x)
int	compute_parity (int *x)
	mdp_lattice (int ndim_, int nx_[], int(*where_)(int *, int, int *)=default_partitioning0, void(*neighbour_)(int, int *, int *, int *, int, int *)=torus_topology, long random_seed_=0, int next_next_=1, bool local_random_=true)
	mdp_lattice (int ndim_, int ndir_, int nx_[], int(*where_)(int *, int, int *)=default_partitioning0, void(*neighbour_)(int, int *, int *, int *, int, int *)=torus_topology, long random_seed_=0, int next_next_=1, bool local_random_=true)
	for weird stuff
void	allocate_lattice (int ndim_, int nx_[], int(*where_)(int *, int, int *)=default_partitioning0, void(*neighbour_)(int, int *, int *, int *, int, int *)=torus_topology, long random_seed_=0, int next_next_=1, bool local_random_=true)
void	allocate_lattice (int ndim_, int ndir_, int nx_[], int(*where_)(int *, int, int *)=default_partitioning0, void(*neighbour_)(int, int *, int *, int *, int, int *)=torus_topology, long random_seed_=0, int next_next_=1, bool local_random_=true)
	for weird stuff
void	deallocate_memory ()
	dynamically deallocate a lattice
void	initialize_random (long random_seed_=0)
mdp_prng &	random (mdp_site)
int	n_dimensions () const
	number of dimensions of the lattice (deprecated_
int	n_directions () const
	number of directions one can move on the lattice; usually same as ndim
long	size () const
	number of sites of the lattice
long	size (const int mu) const
	size of the lattice in direction mu
long	local_volume () const
	number of lattice sites stored locally by current process
long	global_volume () const
	total lattice volume (deprecated)
long	move_up (const long idx, const int mu) const
long	move_down (const long idx, const int mu) const
long	local (long idx) const
long	global (long idx) const
int	site_parity (const long idx) const
long	start_index (const int process, int p=EVENODD) const
long	stop_index (const int process, int p=EVENODD) const
Public Attributes
int	ndim
int	ndir
int	next_next
int *	nx
long	nvol
long	nvol_gl
long	nvol_in
long *	gl
long *	lg
FILE *	lg_file
long **	up
long **	dw
int **	co
int *	wh
int *	parity
long	start [_NprocMax_][2]
long	stop [_NprocMax_][2]
long	len_to_send [_NprocMax_][2]
long *	to_send [_NprocMax_]
bool	local_random_generator
int(*	where )(int *, int, int *)
void(*	neighbour )(int, int *, int *, int *, int, int *)

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Detailed Description

distributed lattice object

Example:

       int box[]={3,3,3};
       int seed=0, border_width=1;
       mdp_lattice lattice(3,box,default_partitioning0,
                           torus_topology,seed,border_width);
       mdp_site x(lattice);
       forallsites(x)
         cout << lattice.random(x).plain() << endl;
    

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Constructor & Destructor Documentation

mdp_lattice::mdp_lattice (  int  ndim_, int  nx_[], int(*)(int *, int, int *)  where_ = default_partitioning0, void(*)(int, int *, int *, int *, int, int *)  neighbour_ = torus_topology, long  random_seed_ = 0, int  next_next_ = 1, bool  local_random_ = true )  [inline]

declares a lattice object Parameters: ndim_  dimensions of the lattice nx_  size of the lattice where  pointer to a partitioning function neighbour_ pointer to a topology function. random_seed_  seed to be used by the parallel prng next_next_  size of the buffer between neighbour processes local_random_  true is local random generator is required

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Member Function Documentation

void mdp_lattice::allocate_lattice (  int  ndim_, int  nx_[], int(*)(int *, int, int *)  where_ = default_partitioning0, void(*)(int, int *, int *, int *, int, int *)  neighbour_ = torus_topology, long  random_seed_ = 0, int  next_next_ = 1, bool  local_random_ = true )  [inline]

reallocate a lattice dynamically Parameters: ndim_  dimensions of the lattice nx_  size of the lattice where  pointer to a partitioning function neighbour_ pointer to a topology function. random_seed_  seed to be used by the parallel prng next_next_  size of the buffer between neighbour processes local_random_  true is local random generator is required

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

• mdp_lattice.h

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