diff --git a/examples/parameter_example.yml b/examples/parameter_example.yml index 4e2c11d09c8c1186502f5c93963be31b1d991f57..36546fac3de98d34846292d0c4e8226d443b4511 100644 --- a/examples/parameter_example.yml +++ b/examples/parameter_example.yml @@ -22,6 +22,24 @@ Cosmology: w_0: -1.0 # (Optional) Dark-energy equation-of-state parameter at z=0. w_a: 0. # (Optional) Dark-energy equation-of-state time evolution parameter. +# Parameters for the hydrodynamics scheme +SPH: + resolution_eta: 1.2348 # Target smoothing length in units of the mean inter-particle separation (1.2348 == 48Ngbs with the cubic spline kernel). + CFL_condition: 0.1 # Courant-Friedrich-Levy condition for time integration. + h_tolerance: 1e-4 # (Optional) Relative accuracy of the Netwon-Raphson scheme for the smoothing lengths. + h_max: 10. # (Optional) Maximal allowed smoothing length in internal units. Defaults to FLT_MAX if unspecified. + max_volume_change: 1.4 # (Optional) Maximal allowed change of kernel volume over one time-step. + max_ghost_iterations: 30 # (Optional) Maximal number of iterations allowed to converge towards the smoothing length. + +# Parameters for the self-gravity scheme +Gravity: + eta: 0.025 # Constant dimensionless multiplier for time integration. + theta: 0.7 # Opening angle (Multipole acceptance criterion) + epsilon: 0.1 # Softening length (in internal units). + a_smooth: 1.25 # (Optional) Smoothing scale in top-level cell sizes to smooth the long-range forces over (this is the default value). + r_cut_max: 4.5 # (Optional) Cut-off in number of top-level cells beyond which no FMM forces are computed (this is the default value). + r_cut_min: 0.1 # (Optional) Cut-off in number of top-level cells below which no truncation of FMM forces are performed (this is the default value). + # Parameters for the task scheduling Scheduler: nr_queues: 0 # (Optional) The number of task queues to use. Use 0 to let the system decide. @@ -60,27 +78,6 @@ Statistics: energy_file_name: energy # (Optional) File name for energy output timestep_file_name: timesteps # (Optional) File name for timing information output. Note: No underscores "_" allowed in file name -# Parameters for the hydrodynamics scheme -SPH: - resolution_eta: 1.2348 # Target smoothing length in units of the mean inter-particle separation (1.2348 == 48Ngbs with the cubic spline kernel). - CFL_condition: 0.1 # Courant-Friedrich-Levy condition for time integration. - h_tolerance: 1e-4 # (Optional) Relative accuracy of the Netwon-Raphson scheme for the smoothing lengths. - h_max: 10. # (Optional) Maximal allowed smoothing length in internal units. Defaults to FLT_MAX if unspecified. - max_volume_change: 1.4 # (Optional) Maximal allowed change of kernel volume over one time-step. - max_ghost_iterations: 30 # (Optional) Maximal number of iterations allowed to converge towards the smoothing length. - -EoS: - isothermal_internal_energy: 20.26784 # Thermal energy per unit mass for the case of isothermal equation of state (in internal units). - -# Parameters for the self-gravity scheme -Gravity: - eta: 0.025 # Constant dimensionless multiplier for time integration. - theta: 0.7 # Opening angle (Multipole acceptance criterion) - epsilon: 0.1 # Softening length (in internal units). - a_smooth: 1.25 # (Optional) Smoothing scale in top-level cell sizes to smooth the long-range forces over (this is the default value). - r_cut_max: 4.5 # (Optional) Cut-off in number of top-level cells beyond which no FMM forces are computed (this is the default value). - r_cut_min: 0.1 # (Optional) Cut-off in number of top-level cells below which no truncation of FMM forces are performed (this is the default value). - # Parameters related to the initial conditions InitialConditions: file_name: SedovBlast/sedov.hdf5 # The file to read @@ -119,6 +116,11 @@ DomainDecomposition: minfrac: 0.9 # (Optional) Fractional of all particles that should be updated in previous step when # using CPU time trigger +# Parameters related to the equation of state ------------------------------------------ + +EoS: + isothermal_internal_energy: 20.26784 # Thermal energy per unit mass for the case of isothermal equation of state (in internal units). + # Parameters related to external potentials -------------------------------------------- # Point mass external potentials