allvars.c File Reference

provides instances of all global variables. More...

#include <stdio.h>
#include <gsl/gsl_rng.h>
#include "tags.h"
#include "allvars.h"

Go to the source code of this file.

Variables
int	ThisTask
int	NTask
int	PTask
int	NumPart
int	N_gas
long long	Ntype [6]
int	NtypeLocal [6]
int	NumForceUpdate
int	NumSphUpdate
double	CPUThisRun
int	RestartFlag
char *	Exportflag
int *	Ngblist
int	TreeReconstructFlag
int	Flag_FullStep
gsl_rng *	random_generator
double	RndTable [256]
double	DomainCorner [3]
double	DomainCenter [3]
double	DomainLen
double	DomainFac
int	DomainMyStart
int	DomainMyLast
int *	DomainStartList
int *	DomainEndList
double *	DomainWork
int *	DomainCount
int *	DomainCountSph
int *	DomainTask
int *	DomainNodeIndex
float *	DomainTreeNodeLen
float *	DomainHmax
DomainNODE *	DomainMoment
peanokey *	DomainKeyBuf
peanokey *	Key
peanokey *	KeySorted
int	NTopnodes
int	NTopleaves
topnode_data *	TopNodes
double	TimeOfLastTreeConstruction
char	ParameterFile [100]
FILE *	FdInfo
FILE *	FdEnergy
FILE *	FdTimings
FILE *	FdCPU
FILE *	FdForceTest
double	DriftTable [1000]
double	GravKickTable [1000]
double	HydroKickTable [1000]
void *	CommBuffer
global_data_all_processes	All
particle_data *	P
particle_data *	DomainPartBuf
sph_particle_data *	SphP
sph_particle_data *	DomainSphBuf
int	MaxNodes
int	Numnodestree
NODE *	Nodes_base
NODE *	Nodes
int *	Nextnode
int *	Father
extNODE *	Extnodes_base
extNODE *	Extnodes
io_header	header
char	Tab_IO_Labels [11][4]
state_of_system	SysState
gravdata_in *	GravDataIn
gravdata_in *	GravDataGet
gravdata_in *	GravDataResult
gravdata_in *	GravDataOut
gravdata_index *	GravDataIndexTable
densdata_in *	DensDataIn
densdata_in *	DensDataGet
densdata_out *	DensDataResult
densdata_out *	DensDataPartialResult
hydrodata_in *	HydroDataIn
hydrodata_in *	HydroDataGet
hydrodata_out *	HydroDataResult
hydrodata_out *	HydroDataPartialResult

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Detailed Description

provides instances of all global variables.

Definition in file allvars.c.

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Variable Documentation

struct global_data_all_processes All

This structure contains data which is the SAME for all tasks (mostly code parameters read from the parameter file). Holding this data in a structure is convenient for writing/reading the restart file, and it allows the introduction of new global variables in a simple way. The only thing to do is to introduce them into this structure. Definition at line 111 of file allvars.c. Referenced by advance_and_find_timesteps(), allocate_commbuffers(), allocate_memory(), begrun(), check_omega(), compute_accelerations(), compute_global_quantities_of_system(), compute_potential(), density(), density_evaluate(), do_box_wrapping(), domain_decompose(), domain_Decomposition(), domain_findExchangeNumbers(), drift_integ(), energy_statistics(), every_timestep_stuff(), fill_write_buffer(), find_files(), find_next_outputtime(), find_next_sync_point_and_drift(), force_treebuild(), force_treebuild_single(), force_treeevaluate(), force_treeevaluate_direct(), force_treeevaluate_ewald_correction(), force_treeevaluate_potential(), force_treeevaluate_potential_shortrange(), force_treeevaluate_shortrange(), force_treeupdate_pseudos(), force_update_node_recursive(), free_memory(), get_drift_factor(), get_gravkick_factor(), get_hydrokick_factor(), get_particles_in_block(), gravity_forcetest(), gravity_tree(), gravkick_integ(), growthfactor_integ(), hydro_evaluate(), hydro_force(), hydrokick_integ(), init(), init_drift_table(), long_range_force(), main(), move_particles(), ngb_treeallocate(), ngb_treefind_pairs(), ngb_treefind_variable(), open_outputfiles(), pm_init_periodic(), pmforce_periodic(), pmpotential_periodic(), read_file(), read_ic(), read_outputlist(), read_parameter_file(), readjust_timebase(), restart(), run(), savepositions(), set_softenings(), set_units(), setup_smoothinglengths(), and write_file().

void* CommBuffer

points to communication buffer, which is used in the domain decomposition, the parallel tree-force computation, the SPH routines, etc. Definition at line 101 of file allvars.c. Referenced by allocate_commbuffers(), read_file(), and write_file().

double CPUThisRun

Sums the CPU time for the process (current submission only) Definition at line 23 of file allvars.c. Referenced by main(), and run().

struct densdata_in * DensDataGet

holds imported particle data for SPH density computation Definition at line 191 of file allvars.c. Referenced by allocate_commbuffers(), density(), and density_evaluate().

struct densdata_in* DensDataIn

holds particle data for SPH density computation to be exported to other processors Definition at line 191 of file allvars.c. Referenced by allocate_commbuffers(), and density().

struct densdata_out * DensDataPartialResult

imported partial SPH density results from other processors Definition at line 195 of file allvars.c. Referenced by allocate_commbuffers(), and density().

struct densdata_out* DensDataResult

stores the locally computed SPH density results for imported particles Definition at line 195 of file allvars.c. Referenced by allocate_commbuffers(), density(), and density_evaluate().

double DomainCenter[3]

gives the center of simulation volume Definition at line 47 of file allvars.c. Referenced by domain_findExtent(), force_treebuild_single(), and restart().

double DomainCorner[3]

gives the lower left corner of simulation volume Definition at line 46 of file allvars.c. Referenced by domain_determineTopTree(), domain_findExtent(), force_treebuild_single(), and restart().

int* DomainCount

a table that gives the total number of particles held by each processor Definition at line 55 of file allvars.c. Referenced by allocate_commbuffers(), domain_findSplit(), domain_shiftSplit(), and domain_sumCost().

int* DomainCountSph

a table that gives the total number of SPH particles held by each processor Definition at line 56 of file allvars.c. Referenced by allocate_commbuffers(), domain_findSplit(), domain_shiftSplit(), and domain_sumCost().

int* DomainEndList

a table that lists the last domain mesh cell for all processors Definition at line 53 of file allvars.c. Referenced by allocate_commbuffers(), domain_decompose(), domain_findSplit(), domain_shiftSplit(), and restart().

double DomainFac

factor used for converting particle coordinates to a Peano-Hilbert mesh covering the simulation volume Definition at line 49 of file allvars.c. Referenced by domain_determineTopTree(), domain_findExtent(), force_treebuild_single(), and restart().

float* DomainHmax

this table gives for each leaf of the top-level tree the maximum SPH smoothing length among the particles of the corresponding node of the gravitational tree Definition at line 61 of file allvars.c. Referenced by allocate_commbuffers(), force_update_hmax(), force_update_node_hmax_toptree(), and restart().

peanokey* DomainKeyBuf

this points to a buffer used during the exchange of particle data Definition at line 66 of file allvars.c. Referenced by allocate_commbuffers(), and domain_exchangeParticles().

double DomainLen

gives the (maximum) side-length of simulation volume Definition at line 48 of file allvars.c. Referenced by domain_findExtent(), and restart().

struct DomainNODE* DomainMoment

this table stores for each node of the top-level tree corresponding node data from the gravitational tree Definition at line 63 of file allvars.c. Referenced by allocate_commbuffers(), force_exchange_pseudodata(), force_insert_pseudo_particles(), force_treeupdate_pseudos(), and restart().

int DomainMyLast

last domain mesh cell that resides on the local processor Definition at line 51 of file allvars.c. Referenced by domain_decompose(), and restart().

int DomainMyStart

first domain mesh cell that resides on the local processor Definition at line 50 of file allvars.c. Referenced by domain_decompose(), and restart().

int* DomainNodeIndex

this table gives for each leaf of the top-level tree the corresponding node of the gravitational tree Definition at line 59 of file allvars.c. Referenced by allocate_commbuffers(), force_create_empty_nodes(), force_exchange_pseudodata(), force_flag_localnodes(), force_insert_pseudo_particles(), force_treebuild_single(), force_treeupdate_pseudos(), force_update_hmax(), force_update_len(), force_update_node_hmax_toptree(), force_update_node_len_toptree(), and restart().

struct particle_data * DomainPartBuf

buffer for particle data used in domain decomposition Definition at line 119 of file allvars.c. Referenced by allocate_commbuffers(), and domain_exchangeParticles().

struct sph_particle_data * DomainSphBuf

buffer for SPH particle data in domain decomposition Definition at line 127 of file allvars.c. Referenced by allocate_commbuffers(), and domain_exchangeParticles().

int* DomainStartList

a table that lists the first domain mesh cell for all processors Definition at line 52 of file allvars.c. Referenced by allocate_commbuffers(), domain_decompose(), domain_findSplit(), domain_shiftSplit(), and restart().

int* DomainTask

this table gives for each leaf of the top-level tree the processor it was assigned to Definition at line 58 of file allvars.c. Referenced by allocate_commbuffers(), domain_countToGo(), domain_exchangeParticles(), domain_findSplit(), domain_shiftSplit(), force_treeevaluate_ewald_correction(), ngb_treefind_pairs(), ngb_treefind_variable(), and restart().

float* DomainTreeNodeLen

this table gives for each leaf of the top-level tree the side-length of the corresponding node of the gravitational tree Definition at line 60 of file allvars.c. Referenced by allocate_commbuffers(), force_update_len(), force_update_node_len_toptree(), and restart().

double* DomainWork

a table that gives the total "work" due to the particles stored by each processor Definition at line 54 of file allvars.c. Referenced by allocate_commbuffers(), domain_shiftSplit(), and domain_sumCost().

double DriftTable[1000]

table for the cosmological drift factors Definition at line 97 of file allvars.c. Referenced by get_drift_factor(), and init_drift_table().

char* Exportflag

Buffer used for flagging whether a particle needs to be exported to another process Definition at line 30 of file allvars.c. Referenced by allocate_commbuffers(), compute_potential(), density(), force_treeevaluate_ewald_correction(), gravity_forcetest(), gravity_tree(), hydro_force(), ngb_treefind_pairs(), and ngb_treefind_variable().

struct extNODE * Extnodes

provides shifted access to extended node information, parallel to Nodes/Nodes_base Definition at line 151 of file allvars.c. Referenced by advance_and_find_timesteps(), force_exchange_pseudodata(), force_treeupdate_pseudos(), force_update_hmax(), force_update_node_hmax_local(), force_update_node_hmax_toptree(), force_update_node_recursive(), move_particles(), and ngb_treefind_pairs().

struct extNODE* Extnodes_base

points to the actual memory allocted for the extended node information Definition at line 151 of file allvars.c. Referenced by restart().

int* Father

gives parent node in tree Definition at line 148 of file allvars.c. Referenced by advance_and_find_timesteps(), force_update_node_hmax_local(), force_update_node_len_local(), restart(), and setup_smoothinglengths().

FILE* FdCPU

file handle for cpu.txt log-file. Definition at line 90 of file allvars.c. Referenced by close_outputfiles(), every_timestep_stuff(), and open_outputfiles().

FILE* FdEnergy

file handle for energy.txt log-file. Definition at line 88 of file allvars.c. Referenced by close_outputfiles(), energy_statistics(), and open_outputfiles().

FILE* FdForceTest

file handle for forcetest.txt log-file. Definition at line 93 of file allvars.c. Referenced by close_outputfiles(), gravity_forcetest(), and open_outputfiles().

FILE* FdInfo

file handle for info.txt log-file. Definition at line 87 of file allvars.c. Referenced by close_outputfiles(), every_timestep_stuff(), and open_outputfiles().

FILE* FdTimings

file handle for timings.txt log-file. Definition at line 89 of file allvars.c. Referenced by close_outputfiles(), gravity_forcetest(), gravity_tree(), and open_outputfiles().

int Flag_FullStep

This flag signals that the current step involves all particles Definition at line 36 of file allvars.c. Referenced by advance_and_find_timesteps(), find_next_sync_point_and_drift(), and init().

struct gravdata_in * GravDataGet

holds particle data imported from other processors Definition at line 180 of file allvars.c. Referenced by allocate_commbuffers(), compute_potential(), gravity_forcetest(), and gravity_tree().

struct gravdata_in* GravDataIn

holds particle data to be exported to other processors Definition at line 180 of file allvars.c. Referenced by allocate_commbuffers(), compute_potential(), gravity_forcetest(), and gravity_tree().

struct gravdata_index* GravDataIndexTable

the particles to be exported are grouped by task-number. This table allows the results to be disentangled again and to be assigned to the correct particle Definition at line 186 of file allvars.c. Referenced by allocate_commbuffers(), compute_potential(), gravity_forcetest(), and gravity_tree().

struct gravdata_in * GravDataOut

holds partial results received from other processors. This will overwrite the GravDataIn array Definition at line 180 of file allvars.c. Referenced by allocate_commbuffers(), compute_potential(), gravity_forcetest(), and gravity_tree().

struct gravdata_in * GravDataResult

holds the partial results computed for imported particles. Note: We use GravDataResult = GravDataGet, such that the result replaces the imported data Definition at line 180 of file allvars.c. Referenced by allocate_commbuffers(), compute_potential(), force_treeevaluate_ewald_correction(), gravity_forcetest(), and gravity_tree().

double GravKickTable[1000]

table for the cosmological kick factor for gravitational forces Definition at line 98 of file allvars.c. Referenced by get_gravkick_factor(), and init_drift_table().

struct io_header header

holds header for snapshot files Definition at line 161 of file allvars.c. Referenced by find_files(), get_particles_in_block(), init(), read_file(), read_header_attributes_in_hdf5(), and write_file().

struct hydrodata_in * HydroDataGet

holds imported particle data for SPH hydro-force computation Definition at line 201 of file allvars.c. Referenced by allocate_commbuffers(), hydro_evaluate(), and hydro_force().

struct hydrodata_in* HydroDataIn

holds particle data for SPH hydro-force computation to be exported to other processors Definition at line 201 of file allvars.c. Referenced by allocate_commbuffers(), and hydro_force().

struct hydrodata_out * HydroDataPartialResult

imported partial SPH hydro-force results from other processors Definition at line 205 of file allvars.c. Referenced by allocate_commbuffers(), and hydro_force().

struct hydrodata_out* HydroDataResult

stores the locally computed SPH hydro results for imported particles Definition at line 205 of file allvars.c. Referenced by allocate_commbuffers(), hydro_evaluate(), and hydro_force().

double HydroKickTable[1000]

table for the cosmological kick factor for hydrodynmical forces Definition at line 99 of file allvars.c. Referenced by get_hydrokick_factor(), and init_drift_table().

peanokey* Key

a table used for storing Peano-Hilbert keys for particles Definition at line 68 of file allvars.c. Referenced by domain_countToGo(), domain_Decomposition(), domain_determineTopTree(), domain_exchangeParticles(), domain_sumCost(), and peano_hilbert_order().

peanokey* KeySorted

holds a sorted table of Peano-Hilbert keys for all particles, used to construct top-level tree Definition at line 69 of file allvars.c. Referenced by domain_Decomposition(), and domain_determineTopTree().

int MaxNodes

maximum allowed number of internal nodes Definition at line 138 of file allvars.c. Referenced by force_create_empty_nodes(), force_treeallocate(), force_treebuild_single(), and restart().

int N_gas

number of gas particles on the LOCAL processor Definition at line 16 of file allvars.c. Referenced by density(), domain_Decomposition(), domain_exchangeParticles(), hydro_force(), ngb_treebuild(), peano_hilbert_order(), read_file(), read_ic(), and restart().

int* Nextnode

gives next node in tree walk Definition at line 147 of file allvars.c. Referenced by force_treebuild_single(), force_treeevaluate_ewald_correction(), force_update_node_recursive(), ngb_treefind_pairs(), ngb_treefind_variable(), and restart().

int* Ngblist

Buffer to hold indices of neighbours retrieved by the neighbour search routines Definition at line 32 of file allvars.c. Referenced by density_evaluate(), hydro_evaluate(), ngb_clear_buf(), ngb_treeallocate(), ngb_treefind_pairs(), ngb_treefind_variable(), and ngb_treefree().

struct NODE * Nodes

this is a pointer used to access the nodes which is shifted such that Nodes[All.MaxPart] gives the first allocated node Definition at line 141 of file allvars.c. Referenced by advance_and_find_timesteps(), force_create_empty_nodes(), force_exchange_pseudodata(), force_flag_localnodes(), force_insert_pseudo_particles(), force_treebuild_single(), force_treeevaluate_ewald_correction(), force_treeupdate_pseudos(), force_update_len(), force_update_node_hmax_local(), force_update_node_hmax_toptree(), force_update_node_len_local(), force_update_node_len_toptree(), force_update_node_recursive(), move_particles(), ngb_treefind_pairs(), ngb_treefind_variable(), and setup_smoothinglengths().

struct NODE* Nodes_base

points to the actual memory allocted for the nodes Definition at line 141 of file allvars.c. Referenced by force_treeallocate(), and restart().

int NTask

number of processors Definition at line 12 of file allvars.c. Referenced by allocate_commbuffers(), begrun(), compute_potential(), density(), domain_countToGo(), domain_decompose(), domain_Decomposition(), domain_findExchangeNumbers(), domain_shiftSplit(), every_timestep_stuff(), gravity_forcetest(), gravity_tree(), hydro_force(), main(), pm_init_periodic(), read_ic(), restart(), and savepositions().

int NTopleaves

number of leaves in top-level tree. Each leaf can be assigned to a different processor Definition at line 73 of file allvars.c. Referenced by domain_decompose(), domain_sumCost(), and domain_walktoptree().

int NTopnodes

total number of nodes in top-level tree Definition at line 72 of file allvars.c. Referenced by domain_sumCost(), domain_topsplit(), and domain_topsplit_local().

long long Ntype[6]

total number of particles of each type Definition at line 17 of file allvars.c. Referenced by domain_decompose().

int NtypeLocal[6]

local number of particles of each type Definition at line 18 of file allvars.c. Referenced by domain_decompose().

int NumForceUpdate

number of active particles on local processor in current timestep Definition at line 20 of file allvars.c. Referenced by gravity_forcetest(), and gravity_tree().

int Numnodestree

number of (internal) nodes in each tree Definition at line 139 of file allvars.c. Referenced by force_treebuild(), and restart().

int NumPart

number of particles on the LOCAL processor Definition at line 15 of file allvars.c. Referenced by compute_potential(), domain_Decomposition(), domain_exchangeParticles(), gravity_forcetest(), gravity_tree(), peano_hilbert_order(), read_file(), read_ic(), and restart().

int NumSphUpdate

number of active SPH particles on local processor in current timestep Definition at line 21 of file allvars.c. Referenced by density(), and hydro_force().

struct particle_data* P

holds particle data on local processor Definition at line 119 of file allvars.c. Referenced by advance_and_find_timesteps(), allocate_memory(), check_omega(), compute_global_quantities_of_system(), compute_potential(), density(), density_evaluate(), do_box_wrapping(), domain_countToGo(), domain_decompose(), domain_determineTopTree(), domain_exchangeParticles(), domain_findExtent(), domain_sumCost(), empty_read_buffer(), fill_write_buffer(), find_next_sync_point_and_drift(), 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(), free_memory(), get_timestep(), gravity_forcetest(), gravity_tree(), hydro_evaluate(), hydro_force(), init(), long_range_force(), move_particles(), ngb_clear_buf(), ngb_treefind_pairs(), ngb_treefind_variable(), pmforce_periodic(), pmpotential_periodic(), read_file(), read_ic(), readjust_timebase(), reorder_gas(), reorder_particles(), restart(), savepositions(), and setup_smoothinglengths().

char ParameterFile[100]

file name of parameterfile used for starting the simulation Definition at line 85 of file allvars.c. Referenced by begrun(), and main().

int PTask

smallest integer such that NTask <= 2^PTask Definition at line 13 of file allvars.c. Referenced by main().

gsl_rng* random_generator

the employed random number generator of the GSL library Definition at line 39 of file allvars.c. Referenced by begrun(), and restart().

int RestartFlag

taken from command line used to start code. 0 is normal start-up from initial conditions, 1 is resuming a run from a set of restart files, while 2 marks a restart from a snapshot file. Definition at line 26 of file allvars.c. Referenced by begrun(), init(), long_range_init_regionsize(), main(), open_outputfiles(), read_file(), read_ic(), and setup_smoothinglengths().

double RndTable[256]

Hold a table with random numbers, refreshed every timestep Definition at line 43 of file allvars.c. Referenced by get_random_number(), and set_random_numbers().

struct sph_particle_data* SphP

holds SPH particle data on local processor Definition at line 127 of file allvars.c. Referenced by advance_and_find_timesteps(), allocate_memory(), compute_global_quantities_of_system(), compute_potential(), density(), density_evaluate(), domain_exchangeParticles(), empty_read_buffer(), fill_write_buffer(), force_treeevaluate(), force_treeevaluate_potential(), force_treeevaluate_potential_shortrange(), force_treeevaluate_shortrange(), force_update_node_hmax_local(), force_update_node_recursive(), free_memory(), get_timestep(), gravity_tree(), hydro_evaluate(), hydro_force(), init(), move_particles(), ngb_treefind_pairs(), read_ic(), reorder_gas(), restart(), and setup_smoothinglengths().

struct state_of_system SysState

Definition at line 173 of file allvars.c. Referenced by compute_global_quantities_of_system(), and energy_statistics().

char Tab_IO_Labels[11][4]

Definition at line 167 of file allvars.c. Referenced by fill_Tab_IO_Labels(), read_file(), and write_file().

int ThisTask

the rank of the local processor Definition at line 11 of file allvars.c. Referenced by advance_and_find_timesteps(), allocate_commbuffers(), allocate_memory(), begrun(), check_omega(), close_outputfiles(), compute_accelerations(), compute_global_quantities_of_system(), compute_potential(), density(), distribute_file(), domain_decompose(), domain_Decomposition(), domain_exchangeParticles(), domain_sumCost(), domain_topsplit(), domain_topsplit_local(), endrun(), energy_statistics(), every_timestep_stuff(), ewald_init(), find_files(), force_create_empty_nodes(), force_treebuild_single(), gravity_forcetest(), gravity_tree(), hydro_force(), init(), main(), my_fread(), my_fwrite(), ngb_treeallocate(), ngb_treebuild(), ngb_treefind_variable(), open_outputfiles(), peano_hilbert_order(), pm_init_periodic(), pm_init_periodic_allocate(), pmforce_periodic(), pmpotential_periodic(), read_file(), read_ic(), read_parameter_file(), readjust_timebase(), restart(), run(), savepositions(), set_units(), and write_file().

double TimeOfLastTreeConstruction

holds what it says, only used in connection with FORCETEST Definition at line 79 of file allvars.c. Referenced by force_treebuild(), and gravity_forcetest().

struct topnode_data* TopNodes

points to the root node of the top-level tree Definition at line 75 of file allvars.c. Referenced by allocate_commbuffers(), domain_countToGo(), domain_exchangeParticles(), domain_sumCost(), domain_topsplit(), domain_topsplit_local(), domain_walktoptree(), force_create_empty_nodes(), and force_treebuild_single().

int TreeReconstructFlag

Signals that a new tree needs to be constructed Definition at line 34 of file allvars.c. Referenced by compute_potential(), domain_Decomposition(), gravity_tree(), and init().

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