#include <simparticles.h>

Inherits intposconvert, and setcomm.

Public Types
typedef particle_data	pdata

Public Member Functions
	simparticles (MPI_Comm comm)

void	copy_particle (particle_data Ptarget, particle_data Psource)

int	getTimeBinSynchronized (int bin)

MyFloat	get_DtHsml (int i)

MyFloat	get_Csnd (int i)

MyFloat	get_OldAcc (int i)

double	get_utherm_from_entropy (int i)

void	set_entropy_from_utherm (double utherm, int i)

void	fill_active_gravity_list_with_all_particles (void)

void	allocate_memory (void)

void	free_memory (void)

void	reallocate_memory_maxpart (int maxpartNew)

void	reallocate_memory_maxpartsph (int maxpartsphNew)

void	dump_particles (void)

void	print_particle_info (int i)
	Print information relative to a particle / cell to standard output. More...

void	print_particle_info_from_ID (MyIDType ID)
	Print information relative to a particle / cell to standard output given its ID. *. More...

int	get_active_index (int idx)

void	reconstruct_timebins (void)

integertime	find_next_sync_point (void)
	This function finds the next synchronization point of the system. (i.e. the earliest point of time any of the particles needs a force computation). More...

void	mark_active_timebins (void)

void	drift_all_particles (void)

int	drift_particle (particle_data P, sph_particle_data SphP, integertime time1, bool ignore_light_cone=false)
	This function drifts a particle i to time1. More...

void	make_list_of_active_particles (void)

integertime	get_timestep_grav (int p)

integertime	get_timestep_hydro (int p)

void	timebins_get_bin_and_do_validity_checks (integertime ti_step, int *bin_new, int bin_old)

void	assign_hydro_timesteps (void)

void	timebin_cleanup_list_of_active_particles (void)

int	test_if_grav_timestep_is_too_large (int p, int bin)

int	get_timestep_bin (integertime ti_step)

Public Member Functions inherited from intposconvert
void	constrain_intpos (MyIntPosType *pos)

template<typename T >
void	diff_intpos_to_pos (MyIntPosType a, MyIntPosType b, T *posdiff, offset_tuple off=0)

MyIntPosType	nearest_image_intpos_to_intpos_X (const MyIntPosType a, const MyIntPosType b)

MyIntPosType	nearest_image_intpos_to_intpos_Y (const MyIntPosType a, const MyIntPosType b)

MyIntPosType	nearest_image_intpos_to_intpos_Z (const MyIntPosType a, const MyIntPosType b)

template<typename T >
void	nearest_image_intpos_to_pos (const MyIntPosType const a, const MyIntPosType const b, T *posdiff)

void	nearest_image_intpos_to_absolute_intdist (const MyIntPosType a, const MyIntPosType b, MyIntPosType *delta)

template<typename T >
MySignedIntPosType	pos_to_signedintpos (T posdiff)

template<typename T >
void	pos_to_signedintpos (T posdiff, MySignedIntPosType intpos)

template<typename T >
void	signedintpos_to_pos (MySignedIntPosType intpos, T pos)

double	signedintpos_to_distanceorigin (MySignedIntPosType *intpos)

template<typename T >
void	intpos_to_pos (MyIntPosType intpos, T posdiff)

void	intpos_to_intpos (MyIntPosType intpos, MyIntPosType xyz)

template<typename T >
T	constrain_pos (T pos)

template<typename T >
void	pos_to_intpos (T posdiff, MyIntPosType intpos)

Public Member Functions inherited from setcomm
	setcomm (MPI_Comm Comm)

	setcomm (const char *str)

void	initcomm (MPI_Comm Comm)

void	mpi_printf (const char *fmt,...)

void	determine_compute_nodes (void)

Static Public Member Functions
static bool	compare_IDs (const MyIDType &a, const MyIDType &b)

Public Attributes
int	NumPart

int	NumGas

int	MaxPart

int	MaxPartSph

long long	TotNumPart

long long	TotNumGas

particle_data *	P

sph_particle_data *	SphP

unsigned short int	MarkerValue

subfind_data *	PS

int	TimeBinSynchronized [TIMEBINS]

TimeBinData	TimeBinsHydro

TimeBinData	TimeBinsGravity

int	nsource

int *	indexlist

Public Attributes inherited from intposconvert
MyReal	FacIntToCoord

MyReal	FacCoordToInt

MyReal	RegionLen

MyReal	RegionCorner [3]

MyReal	RegionCenter [3]

Public Attributes inherited from setcomm
MPI_Comm	Communicator

int	NTask

int	ThisTask

int	PTask

int	ThisNode

int	NumNodes = 0

int	TasksInThisNode

int	RankInThisNode

int	MinTasksPerNode

int	MaxTasksPerNode

long long	MemoryOnNode

long long	SharedMemoryOnNode

Detailed Description

Definition at line 35 of file simparticles.h.

Member Typedef Documentation

◆ pdata

typedef particle_data pdata

Definition at line 49 of file simparticles.h.

Constructor & Destructor Documentation

◆ simparticles()

simparticles ( MPI_Comm comm )

inline

Definition at line 38 of file simparticles.h.

Member Function Documentation

◆ allocate_memory()

void allocate_memory ( void )

inline

Definition at line 273 of file simparticles.h.

◆ assign_hydro_timesteps()

void assign_hydro_timesteps ( void )

Definition at line 56 of file timestep.cc.

◆ compare_IDs()

static bool compare_IDs	(	const MyIDType &	a,
		const MyIDType &	b
	)

inlinestatic

Definition at line 72 of file simparticles.h.

◆ copy_particle()

void copy_particle	(	particle_data *	Ptarget,
		particle_data *	Psource
	)

inline

Definition at line 65 of file simparticles.h.

◆ drift_all_particles()

void drift_all_particles ( void )

Definition at line 274 of file predict.cc.

◆ drift_particle()

int drift_particle	(	particle_data *	P,
		sph_particle_data *	SphP,
		integertime	time1,
		bool	ignore_light_cone = `false`
	)

This function drifts a particle i to time1.

Parameters

time_previous	current time
time1	time to which particles get drifted

Definition at line 313 of file predict.cc.

◆ dump_particles()

void dump_particles ( void )

inline

This function dumps some of the basic particle data to a file. In case the tree construction fails, this is called just before the run terminates with an error message. Examination of the generated file may then give clues to what caused the problem.

Definition at line 321 of file simparticles.h.

◆ fill_active_gravity_list_with_all_particles()

void fill_active_gravity_list_with_all_particles ( void )

inline

Definition at line 260 of file simparticles.h.

◆ find_next_sync_point()

integertime find_next_sync_point ( void )

This function finds the next synchronization point of the system. (i.e. the earliest point of time any of the particles needs a force computation).

This function drifts all particles, including inactive particles to the next sync point. This is done by drift_particles(). Afterwards the linked list of active particles is updated to the new sync point by make_list_of_active_particles(). Particles become active/inactive here.

Definition at line 120 of file predict.cc.

◆ free_memory()

void free_memory ( void )

inline

Definition at line 283 of file simparticles.h.

◆ get_active_index()

int get_active_index ( int idx )

inline

Definition at line 382 of file simparticles.h.

◆ get_Csnd()

MyFloat get_Csnd ( int i )

inline

Definition at line 233 of file simparticles.h.

◆ get_DtHsml()

MyFloat get_DtHsml ( int i )

inline

Definition at line 231 of file simparticles.h.

◆ get_OldAcc()

MyFloat get_OldAcc ( int i )

inline

Definition at line 235 of file simparticles.h.

◆ get_timestep_bin()

int get_timestep_bin ( integertime ti_step )

Definition at line 420 of file timestep.cc.

◆ get_timestep_grav()

integertime get_timestep_grav ( int p )

This function normally (for flag==0) returns the maximum allowed timestep of a particle, expressed in terms of the integer mapping that is used to represent the total simulated timespan. The physical acceleration is returned in aphys. The latter is used in conjunction with the PSEUDOSYMMETRIC integration option, which also makes of the second function of get_timestep. When it is called with a finite timestep for flag, it returns the physical acceleration that would lead to this timestep, assuming timestep criterion 0.

Parameters

p	particle index

Definition at line 177 of file timestep.cc.

◆ get_timestep_hydro()

integertime get_timestep_hydro ( int p )

Parameters

p	particle index

Definition at line 274 of file timestep.cc.

◆ get_utherm_from_entropy()

double get_utherm_from_entropy ( int i )

inline

Definition at line 238 of file simparticles.h.

◆ getTimeBinSynchronized()

int getTimeBinSynchronized ( int bin )

inline

Definition at line 214 of file simparticles.h.

◆ make_list_of_active_particles()

void make_list_of_active_particles ( void )

Definition at line 410 of file predict.cc.

◆ mark_active_timebins()

void mark_active_timebins ( void )

Definition at line 155 of file predict.cc.

◆ print_particle_info()

void print_particle_info ( int i )

inline

Print information relative to a particle / cell to standard output.

Parameters

i	particle / cell index

Definition at line 343 of file simparticles.h.

◆ print_particle_info_from_ID()

void print_particle_info_from_ID ( MyIDType ID )

inline

Print information relative to a particle / cell to standard output given its ID. *.

Parameters

ID particle / cell ID

Definition at line 374 of file simparticles.h.

◆ reallocate_memory_maxpart()

void reallocate_memory_maxpart ( int maxpartNew )

inline

Definition at line 292 of file simparticles.h.

◆ reallocate_memory_maxpartsph()

void reallocate_memory_maxpartsph ( int maxpartsphNew )

inline

Definition at line 304 of file simparticles.h.

◆ reconstruct_timebins()

void reconstruct_timebins ( void )

Definition at line 43 of file predict.cc.

◆ set_entropy_from_utherm()

void set_entropy_from_utherm	(	double	utherm,
		int	i
	)

inline

Definition at line 249 of file simparticles.h.

◆ test_if_grav_timestep_is_too_large()

int test_if_grav_timestep_is_too_large	(	int	p,
		int	bin
	)

Definition at line 158 of file timestep.cc.

◆ timebin_cleanup_list_of_active_particles()

void timebin_cleanup_list_of_active_particles ( void )

Definition at line 637 of file timestep.cc.

◆ timebins_get_bin_and_do_validity_checks()

void timebins_get_bin_and_do_validity_checks	(	integertime	ti_step,
		int *	bin_new,
		int	bin_old
	)

Definition at line 494 of file timestep.cc.

Member Data Documentation

◆ indexlist

int* indexlist

Definition at line 208 of file simparticles.h.

◆ MarkerValue

unsigned short int MarkerValue

Definition at line 61 of file simparticles.h.

◆ MaxPart

int MaxPart

This gives the maxmimum number of particles that can be stored on one processor.

Definition at line 43 of file simparticles.h.

◆ MaxPartSph

int MaxPartSph

This gives the maxmimum number of SPH particles that can be stored on one processor.

Definition at line 44 of file simparticles.h.

◆ nsource

int nsource

Definition at line 207 of file simparticles.h.

◆ NumGas

int NumGas

number of gas particles on the LOCAL processor

Definition at line 41 of file simparticles.h.

◆ NumPart

int NumPart

number of particles on the LOCAL processor

Definition at line 40 of file simparticles.h.

◆ P

particle_data* P

This structure holds all the information that is stored for each particle of the simulation. holds particle data on local processor

Definition at line 54 of file simparticles.h.

◆ PS

subfind_data* PS

Definition at line 63 of file simparticles.h.

◆ SphP

sph_particle_data* SphP

holds SPH particle data on local processor

Definition at line 59 of file simparticles.h.

◆ TimeBinsGravity

TimeBinData TimeBinsGravity

Definition at line 205 of file simparticles.h.

◆ TimeBinsHydro

TimeBinData TimeBinsHydro

Definition at line 204 of file simparticles.h.

◆ TimeBinSynchronized

int TimeBinSynchronized[TIMEBINS]

Definition at line 203 of file simparticles.h.

◆ TotNumGas

long long TotNumGas

total gas particle number (global value)

Definition at line 47 of file simparticles.h.

◆ TotNumPart

long long TotNumPart

total particle numbers (global value)

Definition at line 46 of file simparticles.h.

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

src/data/simparticles.h
src/time_integration/predict.cc
src/time_integration/timestep.cc

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Member Typedef Documentation

◆ pdata

Constructor & Destructor Documentation

◆ simparticles()

Member Function Documentation

◆ allocate_memory()

◆ assign_hydro_timesteps()

◆ compare_IDs()

◆ copy_particle()

◆ drift_all_particles()

◆ drift_particle()

◆ dump_particles()

◆ fill_active_gravity_list_with_all_particles()

◆ find_next_sync_point()

◆ free_memory()

◆ get_active_index()

◆ get_Csnd()

◆ get_DtHsml()

◆ get_OldAcc()

◆ get_timestep_bin()

◆ get_timestep_grav()

◆ get_timestep_hydro()

◆ get_utherm_from_entropy()

◆ getTimeBinSynchronized()

◆ make_list_of_active_particles()

◆ mark_active_timebins()

◆ print_particle_info()

◆ print_particle_info_from_ID()

◆ reallocate_memory_maxpart()

◆ reallocate_memory_maxpartsph()

◆ reconstruct_timebins()

◆ set_entropy_from_utherm()

◆ test_if_grav_timestep_is_too_large()

◆ timebin_cleanup_list_of_active_particles()

◆ timebins_get_bin_and_do_validity_checks()

Member Data Documentation

◆ indexlist

◆ MarkerValue

◆ MaxPart

◆ MaxPartSph

◆ nsource

◆ NumGas

◆ NumPart

◆ P

◆ PS

◆ SphP

◆ TimeBinsGravity

◆ TimeBinsHydro

◆ TimeBinSynchronized

◆ TotNumGas

◆ TotNumPart