particle_data Struct Reference

#include <allvars.h>

Data Fields
float	Pos [3]
float	Mass
float	Vel [3]
float	GravAccel [3]
float	GravPM [3]
float	GravAccelDirect [3]
float	Potential
float	OldAcc
unsigned int	ID
int	Type
int	Ti_endstep
int	Ti_begstep
float	GravCost

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Detailed Description

This structure holds all the information that is stored for each particle of the simulation.

Definition at line 492 of file allvars.h.

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Field Documentation

float particle_data::GravAccel[3]

particle acceleration due to gravity Definition at line 497 of file allvars.h. Referenced by advance_and_find_timesteps(), compute_global_quantities_of_system(), fill_write_buffer(), force_treeevaluate_ewald_correction(), get_timestep(), gravity_forcetest(), gravity_tree(), init(), and move_particles().

float particle_data::GravAccelDirect[3]

particle acceleration when computed with direct summation Definition at line 502 of file allvars.h. Referenced by gravity_forcetest().

float particle_data::GravCost

weight factor used for balancing the work-load Definition at line 518 of file allvars.h. Referenced by domain_sumCost(), force_treebuild_single(), force_treeevaluate_ewald_correction(), gravity_tree(), and init().

float particle_data::GravPM[3]

particle acceleration due to long-range PM gravity force Definition at line 499 of file allvars.h. Referenced by advance_and_find_timesteps(), compute_global_quantities_of_system(), fill_write_buffer(), get_timestep(), gravity_forcetest(), gravity_tree(), init(), long_range_force(), move_particles(), and pmforce_periodic().

unsigned int particle_data::ID

particle identifier Definition at line 507 of file allvars.h. Referenced by density(), empty_read_buffer(), fill_write_buffer(), and hydro_force().

float particle_data::Mass

particle mass Definition at line 495 of file allvars.h. Referenced by advance_and_find_timesteps(), compute_global_quantities_of_system(), compute_potential(), density_evaluate(), empty_read_buffer(), fill_write_buffer(), force_treeevaluate_ewald_correction(), force_update_node_recursive(), hydro_evaluate(), hydro_force(), pmforce_periodic(), pmpotential_periodic(), read_ic(), and setup_smoothinglengths().

float particle_data::OldAcc

magnitude of old gravitational force. Used in relative opening criterion Definition at line 505 of file allvars.h. Referenced by compute_potential(), force_treeevaluate(), force_treeevaluate_potential(), force_treeevaluate_potential_shortrange(), force_treeevaluate_shortrange(), gravity_forcetest(), gravity_tree(), and init().

float particle_data::Pos[3]

particle position at its current time Definition at line 494 of file allvars.h. Referenced by advance_and_find_timesteps(), compute_global_quantities_of_system(), compute_potential(), density(), density_evaluate(), do_box_wrapping(), domain_findExtent(), empty_read_buffer(), fill_write_buffer(), force_treebuild_single(), force_treeevaluate(), force_treeevaluate_direct(), force_treeevaluate_ewald_correction(), force_treeevaluate_potential(), force_treeevaluate_potential_shortrange(), force_treeevaluate_shortrange(), force_update_node_len_local(), force_update_node_recursive(), gravity_forcetest(), gravity_tree(), hydro_evaluate(), hydro_force(), long_range_force(), move_particles(), ngb_clear_buf(), ngb_treefind_pairs(), ngb_treefind_variable(), pmforce_periodic(), and pmpotential_periodic().

float particle_data::Potential

gravitational potential Definition at line 504 of file allvars.h. Referenced by compute_global_quantities_of_system(), compute_potential(), fill_write_buffer(), init(), and pmpotential_periodic().

int particle_data::Ti_begstep

marks end of current timestep of particle on integer timeline Definition at line 514 of file allvars.h. Referenced by advance_and_find_timesteps(), compute_global_quantities_of_system(), density(), domain_sumCost(), fill_write_buffer(), hydro_evaluate(), hydro_force(), init(), move_particles(), and readjust_timebase().

int particle_data::Ti_endstep

marks start of current timestep of particle on integer timeline Definition at line 513 of file allvars.h. Referenced by advance_and_find_timesteps(), compute_global_quantities_of_system(), density(), domain_sumCost(), fill_write_buffer(), gravity_forcetest(), gravity_tree(), hydro_evaluate(), hydro_force(), init(), move_particles(), and readjust_timebase().

int particle_data::Type

flags particle type. 0=gas, 1=halo, 2=disk, 3=bulge, 4=stars, 5=bndry Definition at line 512 of file allvars.h. Referenced by advance_and_find_timesteps(), compute_global_quantities_of_system(), compute_potential(), density(), domain_countToGo(), domain_decompose(), domain_exchangeParticles(), domain_sumCost(), empty_read_buffer(), fill_write_buffer(), force_treebuild_single(), force_treeevaluate(), force_treeevaluate_direct(), force_treeevaluate_potential(), force_treeevaluate_potential_shortrange(), force_treeevaluate_shortrange(), force_update_node_recursive(), get_timestep(), gravity_forcetest(), gravity_tree(), move_particles(), ngb_treefind_pairs(), ngb_treefind_variable(), read_ic(), and savepositions().

float particle_data::Vel[3]

particle velocity at its current time Definition at line 496 of file allvars.h. Referenced by advance_and_find_timesteps(), compute_global_quantities_of_system(), empty_read_buffer(), fill_write_buffer(), force_update_node_recursive(), init(), and move_particles().

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

• allvars.h

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