monte_carlo.hpp File Reference

Functions for Monte Carlo simulations. More...

#include "IsingModel.hpp"
#include "data_type.hpp"
#include "utils.hpp"
#include <functional>
#include <omp.h>
#include <string>

Go to the source code of this file.

Macros
#define	BURN_IN_TIME   5000

Functions
void	montecarlo::progression (double T, int L, int cycles, const std::string filename, int burn_in_time=BURN_IN_TIME)
	Write the expected values for each Monte Carlo cycles to file.
void	montecarlo::progression (double T, int L, int cycles, int value, const std::string filename, int burn_in_time=BURN_IN_TIME)
	Write the expected values for each Monte Carlo cycles to file.
void	montecarlo::pd_estimate (double T, int L, int cycles, const std::string filename, int burn_in_time=BURN_IN_TIME)
	Estimate the probability distribution for the energy.
data_t	montecarlo::mcmc_serial (int L, double T, int cycles, int burn_in_time=BURN_IN_TIME)
	Execute the Metropolis algorithm for a certain amount of Monte Carlo cycles.
data_t	montecarlo::mcmc_parallel (int L, double T, int cycles, int burn_in_time=BURN_IN_TIME)
	Execute the Metropolis algorithm for a certain amount of Monte Carlo cycles in parallel.
void	montecarlo::phase_transition (int L, double start_T, double end_T, int points_T, int cycles, std::function< data_t(int, double, int, int)> monte_carlo, std::string outfile, int burn_in_time=BURN_IN_TIME)
	Perform the MCMC algorithm using a range of temperatures.

Detailed Description

Functions for Monte Carlo simulations.

Author

Cory Alexander Balaton (coryab)

Janita Ovidie Sandtrøen Willumsen (janitaws)

Version

1.0

Bug:

No known bugs

Definition in file monte_carlo.hpp.

Macro Definition Documentation

BURN_IN_TIME

#define BURN_IN_TIME   5000

Definition at line 24 of file monte_carlo.hpp.

Function Documentation

mcmc_parallel()

data_t montecarlo::mcmc_parallel	(	int	L,
		double	T,
		int	cycles,
		int	burn_in_time = BURN_IN_TIME
	)

Execute the Metropolis algorithm for a certain amount of Monte Carlo cycles in parallel.

Parameters

L	The size of the lattice
T	The Temperature for the Ising model
cycles	The amount of Monte Carlo cycles to do
burn_in_time	The burn-in time to use

Returns

data_t

Definition at line 141 of file monte_carlo.cpp.

mcmc_serial()

data_t montecarlo::mcmc_serial	(	int	L,
		double	T,
		int	cycles,
		int	burn_in_time = BURN_IN_TIME
	)

Execute the Metropolis algorithm for a certain amount of Monte Carlo cycles.

Parameters

L	The size of the lattice
T	The Temperature for the Ising model
cycles	The amount of Monte Carlo cycles to do
burn_in_time	The burn-in time to use

Returns

data_t

Definition at line 122 of file monte_carlo.cpp.

pd_estimate()

void montecarlo::pd_estimate	(	double	T,
		int	L,
		int	cycles,
		const std::string	filename,
		int	burn_in_time = BURN_IN_TIME
	)

Estimate the probability distribution for the energy.

Parameters

T	The temperature of the Ising model
L	The size of the lattice
cycles	The amount of Monte Carlo cycles to do
filename	The file to write to
burn_in_time	The burn-in time to use

Definition at line 91 of file monte_carlo.cpp.

phase_transition()

void montecarlo::phase_transition	(	int	L,
		double	start_T,
		double	end_T,
		int	points_T,
		int	cycles,
		std::function< data_t(int, double, int, int)>	monte_carlo,
		std::string	outfile,
		int	burn_in_time = BURN_IN_TIME
	)

Perform the MCMC algorithm using a range of temperatures.

Parameters

L	The size of the lattice
start_T	The start temperature
end_T	The end temperature
point_T	The amount of point to measure
monte_carlo	Which Monte Carlo implementation to use
outfile	The file to write the data to
burn_in_time	The burn-in time to use

Definition at line 169 of file monte_carlo.cpp.

progression() [1/2]

void montecarlo::progression	(	double	T,
		int	L,
		int	cycles,
		const std::string	filename,
		int	burn_in_time = BURN_IN_TIME
	)

Write the expected values for each Monte Carlo cycles to file.

Parameters

T	Temperature
L	The size of the lattice
cycles	The amount of Monte Carlo cycles to do
filename	The file to write to
burn_in_time	The burn-in time to use

Definition at line 15 of file monte_carlo.cpp.

progression() [2/2]

void montecarlo::progression	(	double	T,
		int	L,
		int	cycles,
		int	value,
		const std::string	filename,
		int	burn_in_time = BURN_IN_TIME
	)

Write the expected values for each Monte Carlo cycles to file.

Parameters

T	Temperature
L	The size of the lattice
cycles	The amount of Monte Carlo cycles to do
value	The value to set the elements in the lattice
filename	The file to write to
burn_in_time	The burn-in time to use

Definition at line 53 of file monte_carlo.cpp.