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+#------------------------------------------------------------------------------
+#
+# Parameter file for evolutions of gravitational waves (Teukolsky Waves)
+#
+# For use with Cactus 4.0 (Beta 4)
+#
+# 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, 1999
+#
+#------------------------------------------------------------------------------
+
+!DESC "Evolution of Gravitation Waves: Demo"
+
+# These thorns must be compiled
+
+ActiveThorns = "einstein time adm iobasic ioutil ioascii pugh cartgrid3d boundary idlinearwaves"
+
+#------------------------------------------------------------------------------
+
+# Number of grid points in each direction
+
+driver::global_nsize       = 100
+
+# How many iterations
+
+cactus::cctk_final_time    = 4.0
+
+
+#------------------------------------------------------------------------------
+# 
+# Evolution and initial data
+#
+#------------------------------------------------------------------------------
+
+grid::type                 = "byrange"
+grid::domain               = "full"  
+grid::xyzmin               = -3.0
+grid::xyzmax               =  3.0     
+
+time::dtfac                = 0.25 
+
+einstein::evolution_system = "ADM"
+
+adm::method                = "stagleap"
+adm::bound                 = "radiative"
+
+einstein::slicing          = "1+log"     
+einstein::initial_data     = "teukwaves"
+
+idlinearwaves::mvalue      = 2          
+idlinearwaves::parity      = "even"     
+idlinearwaves::packet      = "eppley"   
+idlinearwaves::wavesgoing  = "in"       
+idlinearwaves::wavecenter  = 0.
+idlinearwaves::wavelength  = 2.
+
+io::outdir                 = "WaveDemo"
+
+iobasic::outinfo_every     = 10
+iobasic::outinfo_vars      = "einstein::grr"
+ioascii::out1d_every       = 10
+ioascii::out1d_vars        = "einstein::grr einstein::alp"
+