set_grid.c File Reference

General initialization of grid (coordinates, metric, connection coefficients, etc.) More...

#include "decs.h"

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Macros
#define	ATTEMPTSYMMETRIZATION   0
	not necessary to symmetrize except for testing/debugging asymmetries More...

Functions
static void	set_position_stores (void)
	set positional stores More...
static void	set_grid_metrics (void)
	Grid functions that only exist at many locations and are assigned values on all points INCLUDING another value at the outer edges so have edge grid data there – makes setting up certain things easier. More...
static void	set_connection (void)
	Grid functions that only exist at one location for all grid points. More...
static void	set_grid_metrics_gcov (void)
	sets gcov More...
static void	set_grid_metrics_others (void)
static void	set_tlab2ortho (void)
	Get tetrads that convert between X-lab frame basis to V-orthonormal basis. More...
int	assignmetricstorage_new (struct of_compgeom *mygeom, FTYPE **localgcov, FTYPE **localgcon, FTYPE **localgcovpert, FTYPE **localgdet, FTYPE **localgdetvol, FTYPE **localalphalapse, FTYPE **localbetasqoalphasq, FTYPE **localbeta, FTYPE **localeomfunc)
	translate compgeom to some local quantities at loc,i,j,k More...
int	assignmetricstorage_oldlast (int loc, int i, int j, int k, FTYPE **localgcov, FTYPE **localgcon, FTYPE **localgcovpert, FTYPE **localgdet, FTYPE **localgdetvol, FTYPE **localalphalapse, FTYPE **localbetasqoalphasq, FTYPE **localbeta, FTYPE **localeomfunc)
	old use of arrays: translate compgeom to some local quantities at loc,i,j,k uses globals More...
void	set_grid (int whichtime, FTYPE *CUf, FTYPE *Cunew)
	GODMARK: may want to make grid functions explicitly 2D for axisymmetric space-times when in axisymmetry with space-time axis aligned with grid. More...

Detailed Description

General initialization of grid (coordinates, metric, connection coefficients, etc.)

Definition in file set_grid.c.

Macro Definition Documentation

#define ATTEMPTSYMMETRIZATION   0

not necessary to symmetrize except for testing/debugging asymmetries

Definition at line 24 of file set_grid.c.

Function Documentation

int assignmetricstorage_new	(	struct of_compgeom *	mygeom,
		FTYPE **	localgcov,
		FTYPE **	localgcon,
		FTYPE **	localgcovpert,
		FTYPE **	localgdet,
		FTYPE **	localgdetvol,
		FTYPE **	localalphalapse,
		FTYPE **	localbetasqoalphasq,
		FTYPE **	localbeta,
		FTYPE **	localeomfunc
	)

translate compgeom to some local quantities at loc,i,j,k

Definition at line 27 of file set_grid.c.

int assignmetricstorage_oldlast	(	int	loc,
		int	i,
		int	j,
		int	k,
		FTYPE **	localgcov,
		FTYPE **	localgcon,
		FTYPE **	localgcovpert,
		FTYPE **	localgdet,
		FTYPE **	localgdetvol,
		FTYPE **	localalphalapse,
		FTYPE **	localbetasqoalphasq,
		FTYPE **	localbeta,
		FTYPE **	localeomfunc
	)

old use of arrays: translate compgeom to some local quantities at loc,i,j,k uses globals

Definition at line 83 of file set_grid.c.

static void set_connection ( void  )

static

Grid functions that only exist at one location for all grid points.

connection only needed at center, and only has memory on full normal grid (not like gcon/gcov that have extra upper edge)

Definition at line 1051 of file set_grid.c.

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void set_grid	(	int	whichtime,
		FTYPE *	CUf,
		FTYPE *	Cunew
	)

GODMARK: may want to make grid functions explicitly 2D for axisymmetric space-times when in axisymmetry with space-time axis aligned with grid.

set up all grid functions

whichtime: 0: setting initial coordinate and metric quantities. Can be called many times to solve initial value problem of coupled matter-metric system of equations. Should NOT be treated as a single call for entire simulation. 1: Setting a future metric such that old metric can be used to compute connection with temporal changes incorporated

CUf/Cunew: time-step for substeps used to iterate the metric and store into old metric when can take temporal difference and use as slope for present value of connection calculation

Definition at line 120 of file set_grid.c.

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static void set_grid_metrics ( void  )

static

Grid functions that only exist at many locations and are assigned values on all points INCLUDING another value at the outer edges so have edge grid data there – makes setting up certain things easier.

Notice that coord() and bl_coord() work without this. So those functions that only require those functions can do without this extra grid stuff.

Definition at line 580 of file set_grid.c.

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static void set_grid_metrics_gcov ( void  )

static

sets gcov

Definition at line 734 of file set_grid.c.

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static void set_grid_metrics_others ( void  )

static

Definition at line 805 of file set_grid.c.

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static void set_position_stores ( void  )

static

set positional stores

Definition at line 287 of file set_grid.c.

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static void set_tlab2ortho ( void  )

static

Get tetrads that convert between X-lab frame basis to V-orthonormal basis.

Definition at line 1280 of file set_grid.c.

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