App_Var_PM Class Reference

: class containing variables and methods for Particle-Mesh code More...

#include <frozen_potential.hpp>

Inheritance diagram for App_Var_PM:

Collaboration diagram for App_Var_PM:

Public Member Functions
	App_Var_PM (const Sim_Param &sim)
Public Member Functions inherited from App_Var_FP
	App_Var_FP (const Sim_Param &sim)
Public Member Functions inherited from App_Var< Particle_v< double > >
	App_Var (const Sim_Param &sim, const std::string &app_short, const std::string &app_long)
virtual	~App_Var ()
void	run_simulation ()
virtual void	update_cosmo (Cosmo_Param &cosmo)
	no truncation by default More...
std::string	get_out_dir () const

Private Member Functions
void	upd_pos () override

Additional Inherited Members
Protected Member Functions inherited from App_Var_FP
	App_Var_FP (const Sim_Param &sim, const std::string &app_short, const std::string &app_long)
Protected Member Functions inherited from App_Var< Particle_v< double > >
double	a ()
double	a_half ()
double	da ()
std::string	get_z_suffix () const
virtual void	print_output ()
virtual void	pot_corr (std::vector< Mesh > &vel_field, Mesh &pot_k)
Protected Attributes inherited from App_Var< Particle_v< double > >
const Sim_Param &	sim
uint64_t	memory_alloc
std::vector< Mesh >	app_field
std::vector< Mesh >	power_aux
std::vector< Particle_v< double > >	particles
Data_Vec< double, 2 >	corr_func_binned
Data_Vec< double, 2 >	pwr_spec_binned
Data_Vec< double, 2 >	pwr_spec_binned_0
Data_Vec< double, 2 >	vel_pwr_spec_binned_0
FFTW_PLAN_TYPE	p_F
FFTW_PLAN_TYPE	p_B
FFTW_PLAN_TYPE	p_F_pwr
FFTW_PLAN_TYPE	p_B_pwr
std::vector< size_t >	dens_binned

Detailed Description

: class containing variables and methods for Particle-Mesh code

Definition at line 54 of file frozen_potential.hpp.

Constructor & Destructor Documentation

App_Var_PM::App_Var_PM

(

const Sim_Param &

sim

)

Definition at line 27 of file frozen_potential.cpp.

                                          :
    App_Var_FP(sim, "PM", "Particle-mesh approximation") {}

Member Function Documentation

void App_Var_PM::upd_pos ( )

overrideprivatevirtual

Reimplemented from App_Var_FP.

Definition at line 30 of file frozen_potential.cpp.

References App_Var< Particle_v< double > >::a_half(), App_Var< Particle_v< double > >::app_field, Sim_Param::box_opt, Sim_Param::cosmo, App_Var< Particle_v< double > >::da(), fftw_execute_dft_r2c(), gen_pot_k(), get_rho_from_par(), kick_step_w_momentum_pm(), Box_Opt::mesh_num, App_Var< Particle_v< double > >::p_F, App_Var< Particle_v< double > >::particles, App_Var< Particle_v< double > >::pot_corr(), App_Var< Particle_v< double > >::sim, and stream_kick_stream().

{// Leapfrog method for frozen-potential
    auto kick_step = [&]()
    {
        // Get discrete density from particles
        get_rho_from_par(particles, app_field[0], sim);

        // get rho_k
        fftw_execute_dft_r2c(p_F, app_field[0]);

        // get potential
        gen_pot_k(app_field[0], app_field[0]);

        // CIC correction of potential, get forces in real space
        pot_corr(app_field, app_field[0]);

        // apply forces
        kick_step_w_momentum_pm(sim.cosmo, a_half(), da(), particles, app_field);
    };
    stream_kick_stream(da(), particles, kick_step, sim.box_opt.mesh_num);
}

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

• src/ApproximationsSchemes/include/frozen_potential.hpp
• src/ApproximationsSchemes/frozen_potential.cpp