# Parameter definitions for thorn Time
# $Header$

restricted:

REAL dtfac "The standard timestep condition dt = dtfac*max(delta_space)"
{
 0:* :: "Probably only makes sense to be bigger than zero"
} 0.5 

REAL courant_fac "The courant timestep condition dt = courant_fac*max(delta_space)/speed/sqrt(dim)"
{
 0:* :: "Probably only makes sense to be bigger than zero"
} 0.9

KEYWORD courant_method "Method for calculating timestep"
{
 "standard"     :: "Courant condition at BASEGRID"
 "standard_wavespeed"    :: "Courant condition at BASEGRID"
 "courant"      :: "Courant condition at PRESTEP (using wavespeed)"
 "courant_time" :: "Courant condition at PRESTEP (using min time)"
} "standard"

BOOLEAN courant_outonly "Only output courant timestep?"
{
} "no"

REAL wave_speed "Fixed Wavespeed"
{
 0.0: :: "wave speed"
} 1.0d0

INT outcourant_every "How often to output courant timestep"
{
 0:* :: "Zero means no output"
} 0