Dimensionless numeric literals and pure mathematical constants. More...

#include <limits>
#include <AMReX_REAL.H>

Include dependency graph for ERF_NumericalConstants.H:

This graph shows which files directly or indirectly include this file:

Variables
constexpr amrex::Real	real_eps = std::numeric_limits<amrex::Real>::epsilon()

constexpr amrex::Real	zero = amrex::Real(0.0)

constexpr amrex::Real	one = amrex::Real(1.0)

constexpr amrex::Real	two = amrex::Real(2.0)

constexpr amrex::Real	three = amrex::Real(3.0)

constexpr amrex::Real	four = amrex::Real(4.0)

constexpr amrex::Real	myhalf = amrex::Real(0.5)

constexpr amrex::Real	fourth = amrex::Real(0.25)

constexpr amrex::Real	third = amrex::Real(1.0/3.0)

constexpr amrex::Real	eightthirds = amrex::Real(8.0/3.0)

constexpr amrex::Real	PI = amrex::Real(3.14159265358979323846264338327950288)

constexpr amrex::Real	PIoTwo = PI/two

constexpr amrex::Real	four_thirds_pi = four/three*PI

Detailed Description

Dimensionless numeric literals and pure mathematical constants.

Nothing in this file is physics. These are spelling aids that let the code write myhalf instead of amrex::Real(0.5) and so stay precision-agnostic between double and single (AMREX_USE_FLOAT) builds, plus the mathematical constant pi and the two combinations of it that recur often enough to be worth naming.

Kept separate from ERF_Constants.H so that a file needing only numeric literals does not have to pull in the thermodynamic constants, and so that ERF_Constants.H reads as a list of physical constants. ERF_Constants.H includes this header, so every existing consumer keeps compiling unchanged.

Variable Documentation

◆ eightthirds

constexpr amrex::Real eightthirds = amrex::Real(8.0/3.0)

constexpr

Referenced by ComputeStrain_N().

◆ four

constexpr amrex::Real four = amrex::Real(4.0)

constexpr

Referenced by ApplyPBLHSmoothing(), NodalReconstruction::computeDiagonal(), ComputeN2_EB(), ComputeStressConsVisc_EB(), ComputeStressVarVisc_EB(), ComputeVerticalShear2_EB(), and init_my_custom_terrain().

◆ four_thirds_pi

constexpr amrex::Real four_thirds_pi = four/three*PI

constexpr

Referenced by SDInitProperties::getDistribution(), SD_sample_mass_gpu(), and SDInitProperties::volume().

◆ fourth

constexpr amrex::Real fourth = amrex::Real(0.25)

constexpr

Referenced by Morrison::Advance(), AdvectionSrcForMom_ConstantDz(), AdvectionSrcForMom_EB(), AdvectionSrcForMom_StretchedDz(), AdvectionSrcForMom_TF(), AdvectionSrcForOpenBC_Tangent_Xmom(), AdvectionSrcForOpenBC_Tangent_Ymom(), AdvectionSrcForOpenBC_Tangent_Zmom(), AdvectionSrcForZMom(), NodalReconstruction::applyA(), NodalReconstruction::applyAT(), ERF::BuildPlot3DScratch(), similarity_funs::calc_psi_m2(), Compute_h_eta_AtCellCenter(), Compute_h_eta_AtEdgeCenterI(), Compute_h_eta_AtEdgeCenterK(), Compute_h_xi_AtCellCenter(), Compute_h_xi_AtEdgeCenterJ(), Compute_h_xi_AtEdgeCenterK(), Compute_h_zeta_AtCellCenter(), Compute_h_zeta_AtEdgeCenterI(), Compute_h_zeta_AtEdgeCenterJ(), compute_max_reflectivity_dbz(), HSEutils::compute_relative_humidity(), bulk_coeff_flux::compute_u_flux(), custom_flux::compute_u_flux(), rico_flux::compute_u_flux(), moeng_flux::compute_u_flux(), bulk_coeff_flux::compute_v_flux(), custom_flux::compute_v_flux(), rico_flux::compute_v_flux(), moeng_flux::compute_v_flux(), Compute_Z_AtWFace(), Compute_Zrel_AtCellCenter(), NodalReconstruction::computeDiagonal(), ComputeDiffusivityMRF(), ComputeDiffusivityMYJ(), ComputeDiffusivityYSU(), ComputeDiffusivityYSUNew(), ComputeSmnSmn(), ComputeSmnSmn2D(), ComputeStrain_T(), ComputeStressConsVisc_EB(), ComputeStressConsVisc_N(), ComputeStressConsVisc_S(), ComputeStressConsVisc_T(), ComputeStressVarVisc_EB(), ComputeStressVarVisc_N(), ComputeStressVarVisc_S(), ComputeStressVarVisc_T(), ForestDrag::define_drag_field(), ERF::derive_diag_profiles_stag(), DiffusionSrcForState_T(), erf_substep_MT(), erf_substep_T(), ERF::FillPlot3DVars(), getRhoAlphaForFaces(), if(), ImmersedForcingBuildings_Xmom(), ImmersedForcingBuildings_Ymom(), ImmersedForcingBuildings_Zmom(), ImmersedForcingTerrain_Xmom(), ImmersedForcingTerrain_Ymom(), ImmersedForcingTerrain_Zmom(), ERF::init_stuff(), SurfaceLayer::init_tke_from_ustar(), init_velocities_from_input_sounding(), interpolate_column_metgrid(), interpolate_column_metgrid_linear(), make_mom_sources(), NodalReconstruction::makeReference(), NodalReconstruction::maxAverageError(), NumericalDiffusion_Xmom(), NumericalDiffusion_Ymom(), orbital_decl(), ParallelFor(), ParallelForRNG(), ERF::poisson_wall_dist(), rotate_stress_tensor(), sam_compute_coefficient_row(), MOSTAverage::set_k_indices_T(), MOSTAverage::set_norm_indices_T(), MOSTAverage::set_norm_positions_T(), MOSTAverage::set_z_positions_T(), terrpoisson_adotx(), terrpoisson_flux_x(), terrpoisson_flux_y(), terrpoisson_flux_z(), terrpoisson_flux_zlo_dir(), and MOSTAverage::trilinear_interp_T().

◆ myhalf

constexpr amrex::Real myhalf = amrex::Real(0.5)

constexpr

Referenced by AddCanopyBiophysicsHeatSources(), Morrison::Advance(), MRISplitIntegrator< T >::advance(), AdvectionSrcForMom_TF(), AdvectionSrcForOpenBC_Normal(), AdvectionSrcForOpenBC_Tangent(), AdvectionSrcForOpenBC_Tangent_Scalars(), AdvectionSrcForOpenBC_Tangent_Xmom(), AdvectionSrcForOpenBC_Tangent_Ymom(), AdvectionSrcForOpenBC_Tangent_Zmom(), AdvectionSrcForXMom(), AdvectionSrcForXMom_N(), AdvectionSrcForYMom(), AdvectionSrcForYMom_N(), AdvectionSrcForZMom(), AdvectionSrcForZMom_N(), ApplyBndryForcing_Forecast(), ApplySpongeZoneBCsForCC(), ApplySpongeZoneBCsForMom(), ApplySpongeZoneBCsForMom_ReadFromFile(), BuildScalarAdvectionFluxesCentered2(), buoyancy_dry_anelastic(), buoyancy_dry_anelastic_eb(), buoyancy_dry_anelastic_T(), buoyancy_dry_Thpert(), buoyancy_dry_Tpert(), buoyancy_moist_anelastic(), buoyancy_moist_Thpert(), buoyancy_moist_Tpert(), buoyancy_rhopert(), buoyancy_rhopert_eb(), similarity_funs::calc_psi_h(), similarity_funs::calc_psi_h2(), similarity_funs::calc_psi_m(), similarity_funs::calc_psi_m2(), InputSoundingData::calc_rho_p(), InputSoundingData::calc_rho_p_isentropic(), TurbulentPerturbation::calc_tpi_meanMag_perBox(), MOSTAverage::cell_center_height(), eb_cut_cell_::centVol(), MaterialPropertiesCore::coeffMolecularDiffusion(), rrtmgp::compute_band_by_band_surface_albedos(), rrtmgp::compute_broadband_surface_fluxes(), HSEutils::compute_F(), GeneralAD::compute_freestream_velocity(), SimpleAD::compute_freestream_velocity(), compute_gradp_interpz(), compute_gradp_xy(), Compute_h_eta_AtIface(), Compute_h_eta_AtKface(), Compute_h_xi_AtJface(), Compute_h_xi_AtKface(), Compute_h_zeta_AtIface(), Compute_h_zeta_AtJface(), compute_if_most_target_vel(), ERF::compute_max_pressure_gradient_diagnostic(), MYNNPBLH::compute_pblh(), MOSTAverage::compute_plane_averages(), Fitch::compute_power_output(), EWP::compute_power_output(), bulk_coeff_flux::compute_q_flux(), rico_flux::compute_q_flux(), moeng_flux::compute_q_flux(), MOSTAverage::compute_region_averages(), compute_source_terms_Fn_Ft(), bulk_coeff_flux::compute_t_flux(), rico_flux::compute_t_flux(), moeng_flux::compute_t_flux(), rotate_flux::compute_u_flux(), bulk_coeff_flux::compute_u_flux(), custom_flux::compute_u_flux(), rico_flux::compute_u_flux(), moeng_flux::compute_u_flux(), moeng_flux_eb::compute_u_flux(), bulk_coeff_flux::compute_v_flux(), custom_flux::compute_v_flux(), rico_flux::compute_v_flux(), moeng_flux::compute_v_flux(), moeng_flux_eb::compute_v_flux(), ComputeDiffusivityMRF(), ComputeDiffusivityMYJ(), ComputeDiffusivityMYNN25(), ComputeDiffusivityMYNNEDMF(), ComputeDiffusivityYSU(), ComputeDiffusivityYSUNew(), ERF::ComputeGlobalMinLocation(), ComputeMoistStratification(), ComputeN2(), ComputeN2_EB(), ComputeSmnSmn2D(), ComputeStrain_EB(), ComputeStrain_N(), ComputeStrain_S(), ComputeStrain_T(), ComputeStratificationForSmagorinsky(), ComputeStressConsVisc_S(), ComputeStressConsVisc_T(), ComputeStressVarVisc_S(), ComputeStressVarVisc_T(), SLM::ComputeTsurf(), ComputeTurbulentViscosityLES(), ComputeTurbulentViscosityLES_EB(), ComputeTurbulentViscosityRANS(), ComputeVerticalDerivativesPBL(), ComputeVerticalShear2(), ComputeVerticalShear2_EB(), polygon_::define(), eb_aux_::define(), ForestDrag::define_drag_field(), ERF::derive_diag_profiles(), ERF::derive_diag_profiles_stag(), ERF::derive_stress_profiles(), ERF::derive_stress_profiles_stag(), DiffusionSrcForMom(), DiffusionSrcForMom_EB(), DiffusionSrcForState_EB(), DiffusionSrcForState_N(), DiffusionSrcForState_S(), DiffusionSrcForState_T(), EBAdvectionSrcForMomWrapper(), EBAdvectionSrcForScalars(), erf_calc_slopes_eb_Dirichlet_staggered(), erf_calc_slopes_eb_staggered(), erf_calc_slopes_eb_staggered_upwind(), derived::erf_derhelicity(), derived::erf_derprecipitable(), ERF::erf_enforce_hse(), ERF::ERF_shared(), erf_slow_rhs_post(), erf_slow_rhs_pre(), erf_substep_MT(), erf_substep_NS(), erf_substep_T(), ERF::ErrorEst(), UPWIND3SL::Evaluate(), UPWINDALL::Evaluate(), expand_and_interpolate_1d(), SurfaceLayer::fill_qsurf_with_qsat(), WindFarm::fill_SMark_multifab(), SurfaceLayer::fill_tsurf_with_coupled_sst(), SurfaceLayer::fill_tsurf_with_sfc_sst(), ERF::FillForecastStateMultiFabs(), ERF::FillPlot3DVars(), ERF::FillSurfaceStateMultiFabs(), NullWindFarm::find_if_marked(), ERF::FindInitialEye(), fine_compute_interior_ghost_rhs(), for(), polygon_::get_centroid(), getRhoAlpha(), ERF::HurricaneEyeTrackerNotInitial(), ERF::HurricaneMaxVelTracker(), ERF::HurricaneMinPressureTracker(), if(), ImmersedForcingBuildings_Scalar(), ImmersedForcingBuildings_Xmom(), ImmersedForcingBuildings_Ymom(), ImmersedForcingBuildings_Zmom(), ImmersedForcingTerrain_Scalar(), ImmersedForcingTerrain_Xmom(), ImmersedForcingTerrain_Ymom(), ImmersedForcingTerrain_Zmom(), ImplicitDiffForMomLU_N(), ImplicitDiffForMomLU_S(), ImplicitDiffForMomLU_T(), ImplicitDiffForStateLU_N(), ImplicitDiffForStateLU_S(), ImplicitDiffForStateLU_T(), ERFPhysBCFunct_cons::impose_vertical_cons_bcs(), ERFPhysBCFunct_u::impose_vertical_xvel_bcs(), ERFPhysBCFunct_v::impose_vertical_yvel_bcs(), MYNNLevel2::init_coeffs(), init_default_zphys(), ERF::init_Dirichlet_bc_data(), ERF::init_geo_wind_profile(), ERF::init_immersed_forcing(), HSEutils::init_isentropic_hse_constant_dz(), HSEutils::init_isentropic_hse_no_terrain(), HSEutils::init_isentropic_hse_stretched_dz(), HSEutils::init_isentropic_hse_terrain(), init_my_custom_terrain(), init_state_from_input_sounding(), init_state_from_input_sounding_hse(), ERF::init_stuff(), init_velocities_from_input_sounding(), init_which_terrain_grid(), ERF::initializeEB(), ERF::initRayleigh_at_level(), LargeScaleForcingData::interp_forcing(), interpolate_column_metgrid(), interpolate_column_metgrid_linear(), interpolatedVal(), InterpolateInX(), InterpolateInY(), UPWINDALL::InterpolateInZ(), InterpolateInZ(), InterpolateToFineMF(), kessler_terminal_velocity(), lagrange_setup(), PlaneAverage::line_average_interpolated(), make_fast_coeffs(), make_mom_sources(), make_sources(), SDInitProperties::makeDistributionParams(), MakeFinalMultiFabs(), HSEutils::Newton_Raphson_hse(), NumericalDiffusion_Scal(), OmegaFromW(), PBLDerivativeDzInv_N::operator()(), orbital_params(), ParallelFor(), ParallelForRNG(), PlaneAverage::PlaneAverage(), ERF::poisson_wall_dist(), ReadBndryPlanes::read_file(), InputSpongeData::read_from_file(), InputSoundingData::read_from_file(), WindFarm::read_windfarm_spec_table(), ERF::ReadCheckpointFile(), realbdy_compute_interior_ghost_rhs(), realbdy_compute_moisture_relaxation(), realbdy_compute_relaxation(), rebalance_columns(), rotate_stress_tensor(), rrtmgp::rrtmgp_lw(), sam_face_average_state(), sam_precip_component_face_state(), sam_precip_face_state(), sam_substep_count_from_reduced_flux(), MOSTAverage::set_k_indices_N(), MOSTAverage::set_k_indices_T(), BaseStateParams::set_layer_interfaces(), MOSTAverage::set_norm_indices_T(), MOSTAverage::set_norm_positions_T(), MOSTAverage::set_z_positions_EB(), MOSTAverage::set_z_positions_T(), ERF::setSpongeRefFromSounding(), EWP::source_terms_cellcentered(), Fitch::source_terms_cellcentered(), GeneralAD::source_terms_cellcentered(), SimpleAD::source_terms_cellcentered(), NOAHMP::stage_forcing(), ERF::sum_energy_quantities(), tag_on_distance_from_eye(), terrpoisson_adotx(), terrpoisson_flux_x(), terrpoisson_flux_y(), terrpoisson_flux_z(), terrpoisson_flux_zlo_dir(), Time_Avg_Vel_atCC(), MOSTAverage::trilinear_interp_T(), VelocityToMomentum(), WFromOmega(), wrf_gamma(), ERF::write_1D_profiles(), ERF::write_1D_profiles_stag(), WindFarm::write_actuator_disks_vtk(), LineSampler::write_line_plotfile(), PlaneSampler::write_sample_data(), and writeNCPlotFile().

◆ one

constexpr amrex::Real one = amrex::Real(1.0)

constexpr

Referenced by add_thin_body_sources(), AddCanopyBiophysicsHeatSources(), EWP::advance(), Fitch::advance(), GeneralAD::advance(), Morrison::Advance(), WDM6::Advance(), WSM6::Advance(), ERF::Advance(), MRISplitIntegrator< T >::advance(), ERF::advance_dycore(), AdvectionSrcForMom(), AdvectionSrcForMom_ConstantDz(), AdvectionSrcForMom_EB(), AdvectionSrcForMom_StretchedDz(), AdvectionSrcForMom_TF(), AdvectionSrcForMomWrapper_N(), AdvectionSrcForXMom(), AdvectionSrcForYMom(), air_viscosity(), ApplyPBLHSmoothing(), ApplyScalarAdvectionFluxDivergence(), eb_cut_cell_::areaHi(), eb_cut_cell_::areaLo(), ERF::AverageDownTo(), buoyancy_moist_anelastic(), buoyancy_rhopert(), buoyancy_rhopert_eb(), similarity_funs::calc_psi_h(), similarity_funs::calc_psi_h2(), similarity_funs::calc_psi_m(), similarity_funs::calc_psi_m2(), InputSoundingData::calc_rho_p(), InputSoundingData::calc_rho_p_isentropic(), calc_saturation_vapor_pressure(), MYNNLevel2::calc_SH(), MYNNLevel25::calc_stability_funcs(), TurbulentPerturbation::calc_tpi_amp(), TurbulentPerturbation::calc_tpi_meanMag_perBox(), TurbulentPerturbation::calc_tpi_update(), calc_wstar(), eb_cut_cell_::centHi(), eb_cut_cell_::centLo(), SHOCInterface::check_flux_state_consistency(), SAM::Cloud(), AL01::cmu(), rrtmgp::compute_aerocom_cloudtop(), PlaneAverage::compute_averages(), rrtmgp::compute_cloud_area(), ERF::compute_divergence(), MOSTAverage::compute_eb_averages(), GeneralAD::compute_freestream_velocity(), SimpleAD::compute_freestream_velocity(), ERF::compute_max_pressure_gradient_diagnostic(), compute_max_reflectivity_dbz(), MYNNPBLH::compute_pblh(), MOSTAverage::compute_plane_averages(), Fitch::compute_power_output(), EWP::compute_power_output(), custom_flux::compute_q_flux(), MOSTAverage::compute_region_averages(), HSEutils::compute_relative_humidity(), HSEutils::compute_rho(), SurfaceLayer::compute_sfc_params_from_lsm_fluxes(), compute_source_terms_Fn_Ft(), SurfaceLayer::compute_SurfaceLayer_bcs(), custom_flux::compute_t_flux(), compute_tangent_vectors(), HSEutils::compute_theta(), custom_flux::compute_u_flux(), custom_flux::compute_v_flux(), ComputeDiffusivityMRF(), ComputeDiffusivityMYJ(), ComputeDiffusivityMYNN25(), ComputeDiffusivityMYNNEDMF(), ComputeDiffusivityYSU(), ComputeDiffusivityYSUNew(), ERF::ComputeDt(), ComputeMoistStratification(), ComputeN2(), ComputeN2_EB(), ComputeSmnSmn_EB(), ComputeStrain_S(), ComputeStrain_T(), ComputeStressConsVisc_EB(), ComputeStressConsVisc_N(), ComputeStressConsVisc_S(), ComputeStressConsVisc_T(), ComputeStressVarVisc_EB(), ComputeStressVarVisc_N(), ComputeStressVarVisc_S(), ComputeStressVarVisc_T(), ComputeTurbulentViscosityLES(), ComputeTurbulentViscosityLES_EB(), ComputeTurbulentViscosityRANS(), ComputeVirtualPotentialTemperature(), NodalReconstruction::conjugateGradient(), polygon_::define(), eb_aux_::define(), ForestDrag::define_drag_field(), ERF::derive_diag_profiles(), ERF::derive_diag_profiles_stag(), DiffusionSrcForMom(), DiffusionSrcForState_EB(), DiffusionSrcForState_N(), DiffusionSrcForState_S(), DiffusionSrcForState_T(), EBAdvectionSrcForRho(), EBAdvectionSrcForScalars(), erf_init_dens_hse_moist(), erf_init_rayleigh(), erf_make_tau_terms(), erf_slow_rhs_post(), erf_slow_rhs_pre(), erf_substep_MT(), erf_substep_NS(), erf_substep_T(), ERF::ErrorEst(), ERF::estTimeStep(), WindFarm::fill_SMark_multifab_mesoscale_models(), SurfaceLayer::fill_tsurf_with_sst_and_tsk(), ERF::FillBdyCCVels(), fine_compute_interior_ghost_rhs(), LargeScaleForcingData::get_forcing_time_coeffs(), rrtmgp::get_subcolumn_mask(), SDInitProperties::getDistribution(), GetThetavl(), SAM::IceFall(), if(), ImmersedForcingBuildings_Scalar(), ImmersedForcingBuildings_Xmom(), ImmersedForcingBuildings_Ymom(), ImmersedForcingBuildings_Zmom(), ImmersedForcingTerrain_Scalar(), ImmersedForcingTerrain_Xmom(), ImmersedForcingTerrain_Ymom(), ImmersedForcingTerrain_Zmom(), ImplicitDiffForMomLU_N(), ImplicitDiffForMomLU_S(), ImplicitDiffForMomLU_T(), ImplicitDiffForStateLU_N(), ImplicitDiffForStateLU_S(), ImplicitDiffForStateLU_T(), ERFPhysBCFunct_base::impose_lateral_basestate_bcs(), ERFPhysBCFunct_cons::impose_lateral_cons_bcs(), ERFPhysBCFunct_u::impose_lateral_xvel_bcs(), ERFPhysBCFunct_v::impose_lateral_yvel_bcs(), ERFPhysBCFunct_cons::impose_vertical_cons_bcs(), ERFPhysBCFunct_u::impose_vertical_xvel_bcs(), ERFPhysBCFunct_v::impose_vertical_yvel_bcs(), MYNNLevel2::init_coeffs(), ERF::init_immersed_forcing(), init_my_custom_terrain(), TurbChoice::init_params(), SolverChoice::init_params(), AdvChoice::init_params(), ERF::init_phys_bcs(), init_state_from_input_sounding(), ERF::init_stuff(), TurbulentPerturbation::init_tpi(), init_which_terrain_grid(), ERF::init_zphys(), ERF::InitData_post(), ERF::initializeEB(), ERF::initRayleigh_at_level(), rrtmgp::inverse_exner(), surface_flux_charnock::iterate_flux(), surface_flux_mod_charnock::iterate_flux(), surface_flux_donelan::iterate_flux(), surface_temp_charnock::iterate_flux(), surface_temp_mod_charnock::iterate_flux(), surface_temp_donelan::iterate_flux(), surface_flux_wave_coupled::iterate_flux(), surface_temp_wave_coupled::iterate_flux(), surface_flux::iterate_flux(), surface_temp::iterate_flux(), surface_temp_eb::iterate_flux(), surface_flux_eb::iterate_flux(), SHOCInterface::kokkos_buffers_to_mf(), lagrange_interp(), lagrange_setup(), PlaneAverage::line_average_interpolated(), make_areas(), make_fast_coeffs(), make_J(), make_mom_sources(), MOSTAverage::make_MOSTAverage_at_level(), make_sources(), SDInitProperties::makeDistributionParams(), MaterialPropertiesCore::molarHeatCapacity(), TurbulentPerturbation::netZeroBuoyantAdd(), HSEutils::Newton_Raphson_hse(), SAM::NewtonIterSat(), SatAdj::NewtonSolveSatTemperature(), NormalizeMultiFabRMS_PerComponent(), NumericalDiffusion_Scal(), PBLDerivativeDzInv_T::operator()(), orbital_avg_cos_zenith(), orbital_calday(), orbital_decl(), orbital_params(), ParallelFor(), ParallelForRNG(), ERF::ParameterSanityChecks(), ERF::poisson_wall_dist(), ERF::post_timestep(), SAM::PrecipFall(), ERF::project_momenta(), ERF::project_velocity_tb(), TurbulentPerturbation::pseudoRandomPert(), WindFarm::read_windfarm_spec_table(), ERF::ReadParameters(), realbdy_compute_interior_ghost_rhs(), rebalance_columns(), ERF::remake_zphys(), rotate_scalar_flux(), rotate_stress_tensor(), sam_cloud_liquid_fraction(), sam_compute_coefficient_row(), sam_mixed_dqif_dT(), sam_mixed_dqsat_dT(), sam_mixed_qsat(), sam_newton_residual_derivative(), sam_partition_autoconverted_precip(), sam_partition_cloud_phase(), sam_precip_cell_update(), sam_precip_component_fluxes_from_face_state(), sam_precip_face_state(), sam_precip_flux_components_from_face_state(), sam_precip_flux_from_face_state(), sam_precip_rain_fraction(), sam_sedimentation_tendency(), MOSTAverage::set_norm_indices_T(), MOSTAverage::set_norm_positions_T(), MOSTAverage::set_rotated_fields(), SHOCInterface::SHOCInterface(), solve_with_EB_mlmg(), SolveTridiag(), GeneralAD::source_terms_cellcentered(), SimpleAD::source_terms_cellcentered(), NOAHMP::stage_forcing(), ERF::sum_energy_quantities(), ERF::SurfaceDataInterpolation(), MOSTAverage::trilinear_interp_T(), AL01::turb_length(), AL01::unstable_length_bound(), SurfaceLayer::update_fluxes(), SDInjection::updateDt(), eb_cut_cell_::volume(), ERF::WeatherDataInterpolation(), wrf_gamma(), wrf_moisture_target(), ERF::write_1D_profiles(), and ERF::write_1D_profiles_stag().

◆ PI

constexpr amrex::Real PI = amrex::Real(3.14159265358979323846264338327950288)

constexpr

Referenced by SolverChoice::build_coriolis_forcings_const_lat(), similarity_funs::calc_psi_h2(), similarity_funs::calc_psi_m2(), TurbulentPerturbation::calc_tpi_update(), MaterialPropertiesCore::coeffMolecularDiffusion(), MaterialPropertiesCore::coeffVPSolute(), compute_A(), IBFaceSet::compute_shortwave(), compute_source_terms_Fn_Ft(), polygon_::define(), ibseb::earth_sun_distance_factor(), ibseb::equation_of_time(), ERF::FillPlot3DVars(), SDInitProperties::getDistribution(), ibseb::hemisphere_direction(), TerminalVelocity< RT >::IceBohm(), if(), init_my_custom_terrain(), init_which_terrain_grid(), make_mom_sources(), make_two_stream_params(), orbital_avg_cos_zenith(), orbital_cos_zenith(), orbital_cos_zenith_instant(), orbital_decl(), orbital_params(), ParallelFor(), SAM::PrecipFall(), prognostic_dTs_dt(), IBFaceSet::report(), ERF::resolve_station_positions(), Radiation::run_impl(), sam_compute_coefficient_row(), SD_erfinv(), SD_erfinv_gpu(), SD_sample_mass_gpu(), ibseb::solar_azimuth(), ibseb::solar_declination(), ibseb::solar_hour_angle(), ibseb::solar_zenith(), EWP::source_terms_cellcentered(), GeneralAD::source_terms_cellcentered(), and vertical_two_stream_sweep().

◆ PIoTwo

constexpr amrex::Real PIoTwo = PI/two

constexpr

Referenced by similarity_funs::calc_psi_m(), similarity_funs::calc_psi_m2(), ERF::initRayleigh_at_level(), and orbital_avg_cos_zenith().

◆ real_eps

constexpr amrex::Real real_eps = std::numeric_limits<amrex::Real>::epsilon()

constexpr

Roundoff floor of the working precision: 2.22e-16 in a double build, 1.19e-07 under AMREX_USE_FLOAT. Write a tolerance as a multiple of this rather than as a hard-wired literal such as amrex::Real(1.e-16), which in a single-precision build sits far below the noise floor and so never fires.

Referenced by compute_tangent_vectors(), eb_aux_::define(), and eb_cut_cell_::path_data::set().