RotatingSymmetry180

Erik Schnetter <schnetter@cct.lsu.edu>

2004-04-08

Abstract

1 Introduction

2 Physical System

3 Numerical Implementation

4 Using This Thorn

4.1 Obtaining This Thorn

4.2 Basic Usage

4.3 Special Behaviour

4.4 Interaction With Other Thorns

4.5 Examples

4.6 Support and Feedback

5 History

5.1 Thorn Source Code

5.2 Thorn Documentation

5.3 Acknowledgements

References

6 Parameters


check_boundaries	Scope: private	BOOLEAN

Description: Check the boundaries for poison

		Default: no


hyperslabber	Scope: private	KEYWORD

Description: Hyperslabbing mechanism

Range		Default: TAT/Slab
TAT/Slab
GetHyperslab


poison_boundaries	Scope: private	BOOLEAN

Description: Fill the symmetry boundary with a poison value before the symmetry is applied

		Default: no


poison_value	Scope: private	INT

Description: Integer value (0..255) used to poison new timelevels (with memset)

Range		Default: 254
0:255	Must fit into a byte. Use 0 for zero, 255 for nan, and e.g. 113 for a large value.


symmetry_boundary_x	Scope: private	REAL

Description: x-coordinate of symmetry boundary (ignored if use_coordbase is set)

Range		Default: 0.0
:


symmetry_boundary_y	Scope: private	REAL

Description: y-coordinate of symmetry boundary (ignored if use_coordbase is set)

Range		Default: 0.0
:


use_coordbase	Scope: private	BOOLEAN

Description: Get symmetry boundary location from CoordBase (and ignore symmetry_boundary_* parameters)

		Default: no


verbose	Scope: private	BOOLEAN

Description: Produce screen output while applying boundary conditions

		Default: no

7 Interfaces

General

Implements:

rotatingsymmetry180

Uses header:

Slab.h

8 Schedule

This section lists all the variables which are assigned storage by thorn CactusNumerical/RotatingSymmetry180. Storage can either last for the duration of the run (Always means that if this thorn is activated storage will be assigned, Conditional means that if this thorn is activated storage will be assigned for the duration of the run if some condition is met), or can be turned on for the duration of a schedule function.

Storage

NONE

Scheduled Functions

CCTK_PARAMCHECK

rot180_checktensortypes

check tensor type definitions for consistency

	Language:	c
	Type:	function

SymmetryRegister

rot180_registersymmetry

	Language:	c
	Type:	function

BoundaryConditions

rot180_computelevelextent

compute extent of level

	Before:	rot180_applybc
	Language:	c
	Options:	level
	Type:	function

BoundaryConditions

rot180_applybc

apply 180 degree rotational symmetry boundary condition

	Language:	c
	Type:	function