TreePiece.cpp File Reference

#include <cstdio>
#include <algorithm>
#include <fstream>
#include <assert.h>
#include <float.h>
#include "limits.h"
#include "ParallelGravity.h"
#include "DataManager.h"
#include "Reductions.h"
#include "MultistepLB.h"
#include "MultistepLB_SFC.h"
#include "MultistepLB_notopo.h"
#include "MultistepNodeLB_notopo.h"
#include "Orb3dLB.h"
#include "Orb3dLB_notopo.h"
#include "HierarchOrbLB.h"
#include "Opt.h"
#include "Compute.h"
#include "TreeWalk.h"
#include "Space.h"
#include "gravity.h"
#include "smooth.h"
#include "PETreeMerger.h"
#include "IntraNodeLBManager.h"
#include "CkLoopAPI.h"
#include "formatted_string.h"
#include "physconst.h"
#include "DumpFrameData.h"

Classes
struct	SortStruct
	structure for efficiently reading iOrders. More...

Functions
	CkpvExtern (int, _lb_obj_index)
string	getColor (GenericTreeNode *node)
	Color a node.
const char *	typeString (NodeType type)
	Interprete NodeType as string.
void	glassDamping (Vector3D< cosmoType > &v, double dDelta, double damping)
	glassDamping applies a damping force to a particle's velocity.
bool	comp_dim0 (GravityParticle p1, GravityParticle p2)
bool	comp_dim1 (GravityParticle p1, GravityParticle p2)
bool	comp_dim2 (GravityParticle p1, GravityParticle p2)
int	CompSortStruct (const void *a, const void *b)
	Comparison function to sort iOrders.
bool	bIsReplica (int reqID)
	is this a periodic replica?
int	decodeReqID (int reqID)
	Given a requestID, return the bucket number.
int	encodeOffset (int reqID, int x, int y, int z)
	Given a bucket number and a periodic offset, encode these into one number.
int	reEncodeOffset (int reqID, int offsetID)
	Add reqID to encoded offset.
void	doWorkForCkLoop (int start, int end, void *result, int pnum, void *param)
void	doCalcEwald (int start, int end, void *result, int pnum, void *param)
void	checkParticle (GravityParticle *p)
	Sanity check on particle data.
string	makeLabel (GenericTreeNode *node)
	Make a label for a node.
void	printGenericTree (GenericTreeNode *node, ostream &os)
	Print a text version of a tree.

Function Documentation

comp_dim0()

bool comp_dim0	(	GravityParticle	p1,
		GravityParticle	p2 )

Three comparison routines used in sort and upper_bound to order particles in each of three dimensions, respectively

glassDamping()

void glassDamping ( Vector3D< cosmoType > & v, double dDelta, double damping )

inline

glassDamping applies a damping force to a particle's velocity.

This can be useful for generating glasses. It is mean to model a damping term vdot = -damping * v

Parameters

v	Particle velocity (v or vPred), a Vector3D
dDelta	Time step to apply damping over
damping	Inverse timescale of the damping