#------------------------------------------------------------------------------
#
# Parameter file for evolutions of gravitational waves (Teukolsky Waves)
#
# For use with Cactus 4.0 (Beta 8) benchmark ADM application
#
# For help on running Cactus, either run the Cactus exectuable with the 
#   command line option -help, or consult the documentation at
#   www.cactuscode.org
#
# Max Planck Institute for Gravitational Physics, Potsdam, Germany, 2000
#
#------------------------------------------------------------------------------

!DESC "Evolution of Gravitation Waves: Demo"

# These thorns must be compiled

ActiveThorns = "einstein LocalReduce time benchadm iobasic ioutil ioascii pugh pughreduce pughslab CartGrid3D CoordBase SymBase idlinearwaves"

#------------------------------------------------------------------------------

# Number of grid points in each direction

driver::global_nsize       = 40

# How many iterations

cactus::cctk_final_time    = 40.0

# What to output and when

iobasic::outinfo_every     = 10
iobasic::outinfo_vars      = "benchadm::ADM_gxx"
ioascii::out1d_every       = 10
ioascii::out1d_vars        = "benchadm::ADM_gxx"

#------------------------------------------------------------------------------
# 
# Evolution and initial data
#
#------------------------------------------------------------------------------

grid::type                 = "byrange"
grid::domain               = "full"  
grid::xyzmin               = -5.0
grid::xyzmax               =  5.0     

time::dtfac                = 0.25 

einstein::evolution_system = "ADM"

benchadm::method                = "stagleap"
benchadm::bound                 = "none"

einstein::slicing          = "geodesic"     
einstein::initial_data     = "teukwaves"
einstein::use_conformal    = "no"

idlinearwaves::mvalue      = 2          
idlinearwaves::parity      = "even"     
idlinearwaves::packet      = "eppley"   
idlinearwaves::wavesgoing  = "both"       
idlinearwaves::wavecenter  = 0.
idlinearwaves::wavelength  = 2.

IO::out_dir                 = "WaveDemo"