Fast Methods for Cosmological Simulations
FastSim serves as a tool for quick N-body simulations in modified gravity.
App_Var_AA Class Reference

: class containing variables and methods for adhesion approximation More...

#include <adhesion.hpp>

Inheritance diagram for App_Var_AA:
Collaboration diagram for App_Var_AA:

Classes

class  AAImpl
 

Public Member Functions

 App_Var_AA (const Sim_Param &sim)
 
 ~App_Var_AA ()
 
- 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 pot_corr (std::vector< Mesh > &vel_field, Mesh &pot_k) override
 
void upd_pos () override
 

Private Attributes

const std::unique_ptr< AAImplm_impl
 

Additional Inherited Members

- 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 ()
 
- Protected Attributes inherited from App_Var< Particle_v< double > >
const Sim_Paramsim
 
uint64_t memory_alloc
 
std::vector< Meshapp_field
 
std::vector< Meshpower_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 adhesion approximation

PUBLIC METHODS * PUBLIC CLASSES *

Definition at line 35 of file adhesion.hpp.

Constructor & Destructor Documentation

App_Var_AA::App_Var_AA ( const Sim_Param sim)

Definition at line 177 of file adhesion.cpp.

References m_impl, App_Var< Particle_v< double > >::memory_alloc, and ~App_Var_AA().

177  :
178  App_Var<Particle_v<FTYPE_t>>(sim, "AA", "Adhesion approximation"), m_impl(new AAImpl(sim))
179 {
180  memory_alloc += m_impl->memory_alloc;
181 }
class containing core variables and methods for approximations
Definition: app_var.hpp:41
const std::unique_ptr< AAImpl > m_impl
Definition: adhesion.hpp:44
App_Var_AA::~App_Var_AA ( )
default

Referenced by App_Var_AA().

Member Function Documentation

void App_Var_AA::pot_corr ( std::vector< Mesh > &  vel_field,
Mesh pot_k 
)
overrideprivatevirtual

Reimplemented from App_Var< Particle_v< double > >.

Definition at line 185 of file adhesion.cpp.

References Sim_Param::app_opt, fftw_execute_dft_c2r(), anonymous_namespace{adhesion.cpp}::gen_init_expot(), m_impl, App_Opt::nu, App_Var< Particle_v< double > >::p_B, and App_Var< Particle_v< double > >::sim.

186 {
187  /* Computing initial expotential */
188  fftw_execute_dft_c2r(p_B, pot_k);
189  gen_init_expot(pot_k, m_impl->expotential, sim.app_opt.nu);
190 }
double nu
Definition: params.hpp:116
void fftw_execute_dft_c2r(const FFTW_PLAN_TYPE &p_B, Mesh &rho)
compute backward (complex to real) FFT on mesh (inplace)
Definition: core_mesh.cpp:253
const std::unique_ptr< AAImpl > m_impl
Definition: adhesion.hpp:44
App_Opt app_opt
Definition: params.hpp:207
void gen_init_expot(const Mesh &potential, Mesh &expotential, double nu)
Definition: adhesion.cpp:21
void App_Var_AA::upd_pos ( )
overrideprivatevirtual

Implements App_Var< Particle_v< double > >.

Definition at line 192 of file adhesion.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(), kick_step_w_momentum(), m_impl, Box_Opt::mesh_num, App_Var< Particle_v< double > >::particles, App_Var< Particle_v< double > >::sim, and stream_kick_stream().

193 {// Leapfrog method for adhesion
194  m_impl->aa_convolution(*this);
195  auto kick_step = [&](){ kick_step_w_momentum(sim.cosmo, a_half(), da(), particles, app_field); };
197 }
void stream_kick_stream(const double da, std::vector< Particle_v< double >> &particles, std::function< void()> kick_step, size_t per)
Definition: integration.cpp:24
Box_Opt box_opt
Definition: params.hpp:202
void kick_step_w_momentum(const Cosmo_Param &cosmo, const double a, const double da, std::vector< Particle_v< double >> &particles, const std::vector< Mesh > &force_field)
Definition: integration.cpp:48
std::vector< Mesh > app_field
Definition: app_var.hpp:63
Cosmo_Param cosmo
Definition: params.hpp:206
std::vector< Particle_v< double > > particles
Definition: app_var.hpp:65
const std::unique_ptr< AAImpl > m_impl
Definition: adhesion.hpp:44
size_t mesh_num
Definition: params.hpp:58

Member Data Documentation

const std::unique_ptr<AAImpl> App_Var_AA::m_impl
private

Definition at line 44 of file adhesion.hpp.

Referenced by App_Var_AA(), pot_corr(), and upd_pos().


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