# Early-start test 1: FLRW (mu = 0) from t_i = 2/(3 H_i) with the expansion-aware step and adaptive subcycling. # Coordinates x' = a_ref x; expected = a_ref^2 / a^2, = -2/(t + t_i), = 1/(6 pi (t + t_i)^2). amr.verbose = 1 amr.plot_int = -1 amr.check_int = -1 amr.plot_vars = chi lapse K rho_p amr.n_cell = 32 32 32 geometry.prob_extent = 1536 1536 1536 geometry.is_periodic = 1 1 1 geometry.center = 768 768 768 amr.max_level = 1 amr.regrid_int = -1 amr.max_grid_size = 16 amr.blocking_factor = 8 amr.n_error_buf = 0 evolution.dt_multiplier = 0.25 evolution.stop_time = 100.0 evolution.max_steps = 100000 evolution.sigma = 0.3 gauge.lapse_advec_coeff = 1.0 gauge.lapse_coeff = 0.3 gauge.lapse_power = 1.0 gauge.shift_advec_coeff = 0.0 gauge.shift_Gamma_coeff = 0.75 gauge.eta = 5.443311e-03 ccz4.formulation = 1 pbh_vlasov.init = yoo pbh_vlasov.H0 = 5.0 pbh_vlasov.mu = 0.0 pbh_vlasov.a_ref = 100.0 pbh_vlasov.tau0 = 0.13333333333333333 pbh_vlasov.dt_mode = 1 pbh_vlasov.dt_frac = 0.03 pbh_vlasov.n_per_dir = 2 pbh_vlasov.theta_rays = 1 pbh_vlasov.theta_profile_interval = 0 pbh_vlasov.ah_interval = 0 rho_line_extraction.enabled = false chi_line_extraction.enabled = false K_line_extraction.enabled = false lapse_line_extraction.enabled = false