#include <gravtree.h>

Inherits tree< gravnode, partset, gravpoint_data, foreign_gravpoint_data >.

Classes
struct	gfactors

struct	index_data

struct	mesh_factors

struct	resultsactiveimported_data

Public Types
typedef tree< gravnode, partset, gravpoint_data, foreign_gravpoint_data >	basetree

Public Types inherited from tree< gravnode, partset, gravpoint_data, foreign_gravpoint_data >
enum	ftype

typedef decltype(Tp->P)	pdata

Public Member Functions
void	set_softenings (void)
	This function sets the (comoving) softening length of all particle types in the table All.SofteningTable[...]. More...

void	gravity_exchange_forces (void)

template<typename T >
void	get_gfactors_multipole (gfactors &res, const T r, const T h_max, const T rinv)

template<typename T >
void	get_gfactors_monopole (gfactors &res, const T r, const T h_max, const T rinv)

template<typename T >
void	get_gfactors_potential (gfactors &res, const T r, const T hmax, const T rinv)

Public Member Functions inherited from tree< gravnode, partset, gravpoint_data, foreign_gravpoint_data >
void	tree_add_to_fetch_stack (gravnode *nop, int nodetoopen, unsigned char shmrank)

void	tree_add_to_work_stack (int target, int no, unsigned char shmrank, int mintopleafnode)

void	prepare_shared_memory_access (void)

void	cleanup_shared_memory_access (void)

void	tree_fetch_foreign_nodes (enum ftype fetch_type)

void	tree_initialize_leaf_node_access_info (void)

foreign_gravpoint_data *	get_foreignpointsp (int n, unsigned char shmrank)

subfind_data *	get_PSp (int n, unsigned char shmrank)

pdata	get_Pp (int n, unsigned char shmrank)

sph_particle_data *	get_SphPp (int n, unsigned char shmrank)

	tree ()

int	treebuild (int ninsert, int *indexlist)

void	treefree (void)

void	treeallocate (int max_partindex, partset Pptr, domain< partset > Dptr)

void	treeallocate_share_topnode_addresses (void)

void	tree_export_node_threads (int no, int i, thread_data *thread, offset_tuple off=0)

void	tree_export_node_threads_by_task_and_node (int task, int nodeindex, int i, thread_data *thread, offset_tuple off=0)

gravnode *	get_nodep (int no)

gravnode *	get_nodep (int no, unsigned char shmrank)

int *	get_nextnodep (unsigned char shmrank)

gravpoint_data *	get_pointsp (int no, unsigned char shmrank)

void	tree_get_node_and_task (int i, int &no, int &task)

Public Attributes
mesh_factors	mf [2]

char	MeasureCostFlag

resultsactiveimported_data *	ResultsActiveImported

ewald_data	PotTaylor

int	num_layers = 0

char	DoEwald

Public Attributes inherited from tree< gravnode, partset, gravpoint_data, foreign_gravpoint_data >
domain< partset > *	D

partset *	Tp

int *	Father

int *	Nextnode

int *	NodeSibling

int *	NodeIndex

gravnode *	TopNodes

gravnode *	Nodes

gravnode *	Foreign_Nodes

foreign_gravpoint_data *	Foreign_Points

ptrdiff_t *	TreeNodes_offsets

ptrdiff_t *	TreePoints_offsets

ptrdiff_t *	TreeNextnode_offsets

ptrdiff_t *	TreeForeign_Nodes_offsets

ptrdiff_t *	TreeForeign_Points_offsets

ptrdiff_t *	TreeP_offsets

ptrdiff_t *	TreeSphP_offsets

ptrdiff_t *	TreePS_offsets

void **	TreeSharedMemBaseAddr

unsigned char *	NodeLevel

gravpoint_data *	Points

int *	IndexList

int *	ResultIndexList

int *	Send_offset

int *	Send_count

int *	Recv_count

int *	Recv_offset

int	MaxPart

int	MaxNodes

int	NumNodes

int	NumPartImported

int	NumPartExported

int	NumForeignNodes

int	MaxForeignNodes

int	NumForeignPoints

int	MaxForeignPoints

long long	sum_NumForeignNodes

long long	sum_NumForeignPoints

int	FirstNonTopLevelNode

int	EndOfTreePoints

int	EndOfForeignNodes

int	ImportedNodeOffset

int	Ninsert

int	NextFreeNode

MPI_Comm	TreeSharedMemComm

int	TreeSharedMem_ThisTask

int	TreeSharedMem_NTask

int	TreeInfoHandle

double	Buildtime

int	NumOnFetchStack

int	MaxOnFetchStack

fetch_data *	StackToFetch

int	NumOnWorkStack

int	MaxOnWorkStack

int	NewOnWorkStack

int	AllocWorkStackBaseLow

int	AllocWorkStackBaseHigh

workstack_data *	WorkStack

Additional Inherited Members
Static Public Member Functions inherited from tree< gravnode, partset, gravpoint_data, foreign_gravpoint_data >
static bool	compare_ghostrank (const fetch_data &a, const fetch_data &b)

static bool	compare_workstack (const workstack_data &a, const workstack_data &b)

Detailed Description

template<typename partset>
class gravtree< partset >

Definition at line 204 of file gravtree.h.

Member Typedef Documentation

◆ basetree

typedef tree<gravnode, partset, gravpoint_data, foreign_gravpoint_data> basetree

Definition at line 207 of file gravtree.h.

Member Function Documentation

◆ get_gfactors_monopole()

void get_gfactors_monopole	(	gfactors &	res,
		const T	r,
		const T	h_max,
		const T	rinv
	)

inline

Definition at line 525 of file gravtree.h.

◆ get_gfactors_multipole()

void get_gfactors_multipole	(	gfactors &	res,
		const T	r,
		const T	h_max,
		const T	rinv
	)

inline

Definition at line 405 of file gravtree.h.

◆ get_gfactors_potential()

void get_gfactors_potential	(	gfactors &	res,
		const T	r,
		const T	hmax,
		const T	rinv
	)

inline

Definition at line 567 of file gravtree.h.

◆ gravity_exchange_forces()

void gravity_exchange_forces ( void )

This file contains the code for the gravitational force computation by means of the tree algorithm. To this end, a tree force is computed for all active local particles, and particles are exported to other processors if needed, where they can receive additional force contributions. If the TreePM algorithm is enabled, the force computed will only be the short-range part.

Definition at line 134 of file gravtree.cc.

◆ set_softenings()

void set_softenings ( void )

This function sets the (comoving) softening length of all particle types in the table All.SofteningTable[...].

A check is performed that the physical softening length is bounded by the Softening-MaxPhys values.

Definition at line 584 of file gravtree_build.cc.

Member Data Documentation

◆ DoEwald

char DoEwald

public functions

Definition at line 361 of file gravtree.h.

◆ MeasureCostFlag

char MeasureCostFlag

Variables for gravitational tree

Definition at line 291 of file gravtree.h.

◆ mf

mesh_factors mf[2]

Definition at line 271 of file gravtree.h.

◆ num_layers

int num_layers = 0

Definition at line 296 of file gravtree.h.

◆ PotTaylor

ewald_data PotTaylor

Definition at line 295 of file gravtree.h.

◆ ResultsActiveImported

resultsactiveimported_data* ResultsActiveImported

Definition at line 293 of file gravtree.h.

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

src/gravtree/gravtree.h
src/gravtree/gravtree.cc
src/gravtree/gravtree_build.cc

Classes

Public Types

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ basetree

Member Function Documentation

◆ get_gfactors_monopole()

◆ get_gfactors_multipole()

◆ get_gfactors_potential()

◆ gravity_exchange_forces()

◆ set_softenings()

Member Data Documentation

◆ DoEwald

◆ MeasureCostFlag

◆ mf

◆ num_layers

◆ PotTaylor

◆ ResultsActiveImported