# Parameter definitions for thorn Einstein
# $Header$

private:
 
REAL dtfac "Courant factor for evolution"
{
 : :: "Can  in principle be anything, although negative would be strange"
} 0.5

REAL tzero "Initial time for simulation"
{
 : :: "Can have any value"
} 0.0

KEYWORD method "Evolution method for spacetime"
{
  "none" :: "Do not evolve spacetime
} "none"

KEYWORD system "Spacetime system to evolve"
{
  "none" :: "Do not use a spacetime"
} "none"

KEYWORD model "Physical spacetime model to evolve"
{
  "flat" :: "Flat Minkowski space"
} "flat"

KEYWORD slicing "Slicing condition to implement"
{
  "static"   :: "Lapse is not evolved"
  "geodesic" :: "Lapse is set to unity"
} "geodesic"

KEYWORD shift "Which shift condition to use"
{
  "none" :: "No shift is used"
  "zero" :: "Zero shift is used"
} "none"

LOGICAL use_conformal "Use conformal metric?"
{
} "yes"

LOGICAL conformal_storage_psi "Assign storage for psi"
{
} "yes"

LOGICAL conformal_storage_all "Assign storage for psi and derivatives"
{
} "yes"