# This parameter file tries to set up 3-black-hhole Misner initial data. # Alas, it reveals a nasty "infinite memory leak" in IDAnalyticBH: # the process size grows steadily at around O(100) Megabytes/second # until all swap space is exhausted. (It was over a Gigabyte when I # killed the process!) ######################################## # # ***** grid ***** # ActiveThorns = "CartGrid3D PUGH" Driver::global_nx = 15 Driver::global_ny = 15 Driver::global_nz = 10 PUGH::ghost_size = 2 Grid::domain = "bitant" Grid::type = "byspacing" Grid::dxyz = 0.1 Grid::avoid_origin = "true" ######################################## # # physics # ActiveThorns = "ADMBase ADMCoupling CoordGauge StaticConformal SpaceMask" ActiveThorns = "IDAnalyticBH" ADMBase::initial_data = "multiple_misner_bh" IDAnalyticBH::misner_nbh = 3 IDAnalyticBH::mu = 1.0 ######################################## # # numerical methods # Cactus::cctk_itlast = 0 ADMBase::metric_type = "static conformal" StaticConformal::conformal_storage = "factor" ADMBase::evolution_method = "none" ADMBase::initial_lapse = "Cadez" ADMBase::lapse_evolution_method = "static" ADMBase::initial_shift = "zero" ADMBase::shift_evolution_method = "static"