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# This parameter file sets up Brill-Lindquist initial data and finds the
# apparent horizons in it with AHFinderDirect.
########################################
#
# ***** grid *****
#
ActiveThorns = "CoordBase SymBase CartGrid3D PUGH"
Driver::global_nx = 42
Driver::global_ny = 42
Driver::global_nz = 82
PUGH::ghost_size = 2
Grid::domain = "full"
Grid::type = "byspacing"
Grid::dxyz = 0.05
Grid::avoid_origin = "true"
########################################
#
# physics
#
ActiveThorns = "ADMBase ADMCoupling CoordGauge StaticConformal SpaceMask"
ActiveThorns = "IDAnalyticBH"
ADMBase::initial_data = "bl_bh"
IDAnalyticBH::bl_nbh = 2
IDAnalyticBH::bl_m_1 = 1.0
IDAnalyticBH::bl_x0_1 = 0.0
IDAnalyticBH::bl_y0_1 = 0.0
IDAnalyticBH::bl_z0_1 = 1.0
IDAnalyticBH::bl_m_2 = 1.0
IDAnalyticBH::bl_x0_2 = 0.0
IDAnalyticBH::bl_y0_2 = 0.0
IDAnalyticBH::bl_z0_2 = -1.0
########################################
#
# numerical methods
#
Cactus::cctk_itlast = 0
ADMBase::metric_type = "static conformal"
StaticConformal::conformal_storage = "factor+derivs+2nd derivs"
ADMBase::evolution_method = "none"
ADMBase::initial_lapse = "Cadez"
ADMBase::lapse_evolution_method = "static"
ADMBase::initial_shift = "zero"
ADMBase::shift_evolution_method = "static"
########################################
ActiveThorns = "IOUtil"
IOUtil::parfile_write = "no"
########################################
#
# AHFinderDirect
#
ActiveThorns = "AEILocalInterp PUGHInterp PUGHReduce SphericalSurface AHFinderDirect"
AHFinderDirect::print_timing_stats = "true"
##AHFinderDirect::verbose_level = "algorithm details"
AHFinderDirect::h_base_file_name = "misner.h"
AHFinderDirect::BH_diagnostics_base_file_name = "misner.BH_diagnostics"
AHFinderDirect::N_horizons = 2
AHFinderDirect::origin_x[1] = 0.0
AHFinderDirect::origin_y[1] = 0.0
AHFinderDirect::origin_z[1] = +1.0
AHFinderDirect::initial_guess_method[1] = "coordinate sphere"
AHFinderDirect::initial_guess__coord_sphere__x_center[1] = 0.0
AHFinderDirect::initial_guess__coord_sphere__y_center[1] = 0.0
AHFinderDirect::initial_guess__coord_sphere__z_center[1] = +1.0
AHFinderDirect::initial_guess__coord_sphere__radius[1] = 0.5
AHFinderDirect::origin_x[2] = 0.0
AHFinderDirect::origin_y[2] = 0.0
AHFinderDirect::origin_z[2] = -1.0
AHFinderDirect::initial_guess_method[2] = "coordinate sphere"
AHFinderDirect::initial_guess__coord_sphere__x_center[2] = 0.0
AHFinderDirect::initial_guess__coord_sphere__y_center[2] = 0.0
AHFinderDirect::initial_guess__coord_sphere__z_center[2] = -1.0
AHFinderDirect::initial_guess__coord_sphere__radius[2] = 0.5
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