build.analysis.fof
fof
EFFECTIVE VALUEfalse
Compile the friends-of-friends halo finder.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.analysis.fof.primary_link_type_mask
primary link type mask
EFFECTIVE VALUE2
Particle-type bit mask used as FoF primary linking tracers.
Try changing this parameter ↗Type int64
Validation {.} >= 0
Schema & provenance ⌄
build.analysis.fof.secondary_link_type_mask
secondary link type mask
EFFECTIVE VALUE0
Particle-type bit mask attached to nearest FoF primary tracers.
Try changing this parameter ↗Type int64
Validation {.} >= 0
Schema & provenance ⌄
build.analysis.subfind
subfind
EFFECTIVE VALUEfalse
Compile the Subfind substructure finder; requires FoF.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.analysis.subfind.calculate_velocity_dispersion
calculate velocity dispersion
EFFECTIVE VALUEfalse
Calculate additional Subfind velocity-dispersion information.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.analysis.subfind.extended_properties
extended properties
EFFECTIVE VALUEfalse
Calculate extended Subfind angular-momentum and energy properties.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.analysis.subfind.save_density_estimates
save density estimates
EFFECTIVE VALUEfalse
Save Subfind smoothing lengths, densities, and velocity dispersions.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.boundaries.x_mode
x mode
EFFECTIVE VALUE2
X-boundary mode; zero leaves no REFLECTIVE_X compile option.
Try changing this parameter ↗Type int64
Schema & provenance ⌄
build.boundaries.y_mode
y mode
EFFECTIVE VALUE0
Y-boundary mode; zero leaves no REFLECTIVE_Y compile option.
Try changing this parameter ↗Type int64
Schema & provenance ⌄
build.boundaries.z_mode
z mode
EFFECTIVE VALUE0
Z-boundary mode; zero leaves no REFLECTIVE_Z compile option.
Try changing this parameter ↗Type int64
Schema & provenance ⌄
build.diagnostics.debug
debug
EFFECTIVE VALUEtrue
Enable Arepo debugging facilities and core-dump support.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.geometry.one_dimensional
one dimensional
EFFECTIVE VALUEtrue
Restrict the Voronoi mesh and hydrodynamics to one dimension.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.geometry.spherical_one_dimensional
spherical one dimensional
EFFECTIVE VALUEfalse
Use one-dimensional spherical geometry.
Try changing this parameter ↗Type bool
Scientific impact Uses the first coordinate as radius under spherical symmetry.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Uses the first coordinate as radius under spherical symmetry.
- Requires
- build.geometry.one_dimensional
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.geometry.static_mesh
static mesh
EFFECTIVE VALUEfalse
Use a static Voronoi mesh.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Performance impact
- Disables domain decomposition by default; mesh-generating points have zero velocity.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.geometry.two_dimensional
two dimensional
EFFECTIVE VALUEfalse
Restrict the Voronoi mesh and hydrodynamics to two dimensions.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.gravity.cell_center_evaluation
cell center evaluation
EFFECTIVE VALUEfalse
Evaluate cell gravity at geometric centres; requires hierarchical gravity.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.direct_summation
direct summation
EFFECTIVE VALUEfalse
Allow direct summation for small active particle sets.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Performance impact
- Avoids tree-walk overhead for sufficiently small active particle sets.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.direct_summation.threshold
threshold
EFFECTIVE VALUE3000
Active-particle threshold below which direct gravity summation is used.
Try changing this parameter ↗Type int64
Validation {.} > 0
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Validation condition
- {.} > 0
- Recommended range
- Positive; Arepo's documented default is 3000 active particles.
- Performance impact
- Increasing the threshold selects direct summation for more active-particle sets.
- Requires
- build.gravity.direct_summation
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.evaluate_potential
evaluate potential
EFFECTIVE VALUEfalse
Calculate gravitational potentials.
Try changing this parameter ↗Type bool
Scientific impact Enables potential-energy diagnostics for global energy-conservation tests.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Enables potential-energy diagnostics for global energy-conservation tests.
- Performance impact
- Computes potential energy whenever global statistics are measured.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.hierarchical
hierarchical
EFFECTIVE VALUEfalse
Use hierarchical gravity time integration.
Try changing this parameter ↗Type bool
Scientific impact Uses hierarchical splitting of gravitational time integration.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Uses hierarchical splitting of gravitational time integration.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.individual_softening_type_mask
individual softening type mask
EFFECTIVE VALUE0
Particle-type bit mask selecting individual gravity softening.
Try changing this parameter ↗Type int64
Scientific impact Assigns selected particle types a softening based on mass relative to type 1; primarily useful for zoom simulations.
Validation {.} >= 0
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Validation condition
- {.} >= 0
- Scientific impact
- Assigns selected particle types a softening based on mass relative to type 1; primarily useful for zoom simulations.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.multiple_node_softening
multiple node softening
EFFECTIVE VALUEfalse
Retain component-specific softenings when using softened tree nodes.
Try changing this parameter ↗Type bool
Scientific impact Approximates component centres of mass separately when evaluating softened node-particle interactions.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Approximates component centres of mass separately when evaluating softened node-particle interactions.
- Performance impact
- Can avoid a substantial tree-walk penalty from opening softened nodes, but stores component masses per tree node.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.non_periodic
non periodic
EFFECTIVE VALUEfalse
Compile non-periodic gravity.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.gravity.particle_mesh
particle mesh
EFFECTIVE VALUEfalse
Enable periodic particle-mesh gravity in the TreePM solver.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.gravity.particle_mesh.enlarge_high_resolution_region
enlarge high resolution region
EFFECTIVE VALUE0
Expansion factor for the TreePM high-resolution region.
Try changing this parameter ↗Type float64
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Performance impact
- A larger buffer reduces expensive high-resolution mesh-geometry recalculations for expanding particle sets.
- Requires
- build.gravity.particle_mesh.high_resolution_type_mask
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.particle_mesh.grid_resolution
grid resolution
EFFECTIVE VALUE0
Particle-mesh cells per dimension; zero is disabled.
Try changing this parameter ↗Type int64
Scientific impact Enables TreePM, using PM for long-range and the tree for short-range forces.
Validation {.} >= 0
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Validation condition
- {.} >= 0
- Recommended range
- At least 256 for TreePM accuracy; powers of two are fastest for FFTs.
- Scientific impact
- Enables TreePM, using PM for long-range and the tree for short-range forces.
- Performance impact
- Larger grids increase PM-force resolution, memory use, and FFT cost.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.particle_mesh.high_resolution_grid_boost
high resolution grid boost
EFFECTIVE VALUE0
Resolution multiplier for a zoom TreePM grid.
Try changing this parameter ↗Type int64
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Performance impact
- Changes high-resolution FFT mesh size in proportion to PMGRID.
- Requires
- build.gravity.particle_mesh.high_resolution_type_mask
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.particle_mesh.high_resolution_type_mask
high resolution type mask
EFFECTIVE VALUE0
Particle-type mask defining the TreePM high-resolution region.
Try changing this parameter ↗Type int64
Scientific impact Adds a high-resolution Fourier mesh around the selected particle types for zoom simulations.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Adds a high-resolution Fourier mesh around the selected particle types for zoom simulations.
- Requires
- build.gravity.particle_mesh.grid_resolution
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.particle_mesh.short_range_cutoff
short range cutoff
EFFECTIVE VALUE4.5
TreePM short-range cutoff in particle-mesh cell units.
Try changing this parameter ↗Type float64
Validation {.} > 0
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Validation condition
- {.} > 0
- Rationale
- 4.5 mesh cells is Arepo's documented default.
- Performance impact
- Larger cutoffs extend the tree calculation further from each particle.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.particle_mesh.zoom_optimized
zoom optimized
EFFECTIVE VALUEfalse
Use the TreePM algorithm optimized for cosmological zoom simulations.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Performance impact
- Uses a communication algorithm robust to clustered zoom data, but slower than the default for homogeneous periodic boxes.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.gravity.self_gravity
self gravity
EFFECTIVE VALUEfalse
Compile gravitational interactions between particles and cells.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.gravity.softening_types
softening types
EFFECTIVE VALUE6
Number of available gravitational-softening families.
Try changing this parameter ↗Type int64
Scientific impact Defines the available gravity-softening families that particle types may share.
Validation {.} >= 2
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Validation condition
- {.} >= 2
- Rationale
- Defaults to Arepo's NTYPES (six in this source tree) when NSOFTTYPES is omitted; must match the configured SofteningComovingTypeN entries.
- Scientific impact
- Defines the available gravity-softening families that particle types may share.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.initial_conditions.generate_gas_from_dark_matter
generate gas from dark matter
EFFECTIVE VALUEfalse
Generate gas particles from dark-matter-only initial conditions.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.io.cpu_csv
cpu csv
EFFECTIVE VALUEfalse
Write the supplementary cpu.csv performance log.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.io.hdf5
hdf5
EFFECTIVE VALUEtrue
Compile HDF5 snapshot and initial-condition support.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.io.input_double_precision
input double precision
EFFECTIVE VALUEtrue
Read initial conditions in double precision.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.io.output_coordinates_double
output coordinates double
EFFECTIVE VALUEfalse
Always write coordinates in double precision.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.io.output_double_precision
output double precision
EFFECTIVE VALUEtrue
Write snapshot fields in double precision.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.io.read_mass_as_density
read mass as density
EFFECTIVE VALUEfalse
Interpret IC Mass fields as densities.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.io.reduced_flush
reduced flush
EFFECTIVE VALUEfalse
Reduce log-file flush frequency.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Performance impact
- Reduces filesystem flush activity by avoiding flushes at every synchronization point.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.mesh.adaptive_hydro_softening
adaptive hydro softening
EFFECTIVE VALUEfalse
Compile adaptive gas-cell gravitational softening.
Try changing this parameter ↗Type bool
Scientific impact Varies hydro-cell softening with cell radius using the runtime adaptive-softening table.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Varies hydro-cell softening with cell radius using the runtime adaptive-softening table.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.mesh.center_of_mass_drift
center of mass drift
EFFECTIVE VALUEtrue
Regularize mesh-generating-point drift from cell centres of mass.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.mesh.drift_limited_by_sound_speed
drift limited by sound speed
EFFECTIVE VALUEtrue
Limit centre-of-mass regularization by local sound speed.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.mesh.face_angle_regularization
face angle regularization
EFFECTIVE VALUEtrue
Regularize mesh cells using their maximum face angle.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.mesh.no_refine_background_grid
no refine background grid
EFFECTIVE VALUEfalse
Exclude the background grid from refinement.
Try changing this parameter ↗Type bool
Scientific impact Prevents derefinement of sufficiently large background cells in cosmological zoom simulations.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Prevents derefinement of sufficiently large background cells in cosmological zoom simulations.
- Requires
- build.mesh.refinement
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.mesh.override_peanogrid_warning
override peanogrid warning
EFFECTIVE VALUEfalse
Allow configurations that exceed the Peano-grid warning threshold.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.mesh.refinement
refinement
EFFECTIVE VALUEfalse
Compile cell refinement and derefinement.
Try changing this parameter ↗Type bool
Scientific impact Enables dynamic cell refinement and derefinement; the default target is gas-cell mass.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Enables dynamic cell refinement and derefinement; the default target is gas-cell mass.
- Conflicts with
- build.geometry.one_dimensional
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.mesh.volume_refinement
volume refinement
EFFECTIVE VALUEfalse
Compile volume-limited mesh refinement.
Try changing this parameter ↗Type bool
Scientific impact Enforces absolute cell-volume bounds and a maximum neighbouring-cell volume contrast.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Enforces absolute cell-volume bounds and a maximum neighbouring-cell volume contrast.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.numerics.riemann_hlld
riemann hlld
EFFECTIVE VALUEfalse
Use the HLLD Riemann solver for ideal MHD.
Try changing this parameter ↗Type bool
Scientific impact Selects the HLLD approximate Riemann solver required for MHD.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Selects the HLLD approximate Riemann solver required for MHD.
- Requires
- build.physics.magnetohydrodynamics
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.output.acceleration
acceleration
EFFECTIVE VALUEfalse
Write gravitational accelerations.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.output.center_of_mass
center of mass
EFFECTIVE VALUEfalse
Write gas-cell centres of mass.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.output.magnetic_field_gradient
magnetic field gradient
EFFECTIVE VALUEfalse
Write magnetic-field gradients.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.output.potential
potential
EFFECTIVE VALUEfalse
Write gravitational potentials.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.output.pressure_gradient
pressure gradient
EFFECTIVE VALUEfalse
Write pressure gradients.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.output.process_schedule_exactly
process schedule exactly
EFFECTIVE VALUEfalse
Process output-list times before starting to improve timing accuracy.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.physics.adiabatic_index
adiabatic index
EFFECTIVE VALUE1.4
Compile-time gas adiabatic index; zero selects Arepo's default.
Try changing this parameter ↗Type float64
Scientific impact Sets the equation-of-state adiabatic index for ideal hydrodynamics.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Rationale
- A value of zero delegates to Arepo's ideal-hydrodynamics default of 5/3.
- Scientific impact
- Sets the equation-of-state adiabatic index for ideal hydrodynamics.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.physics.cooling
cooling
EFFECTIVE VALUEfalse
Compile radiative cooling and UV-background support.
Try changing this parameter ↗Type bool
Scientific impact Enables primordial cooling physics and conversions to proper cgs quantities.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Enables primordial cooling physics and conversions to proper cgs quantities.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.physics.jeans_cell_stability
jeans cell stability
EFFECTIVE VALUEfalse
Enforce the Jeans-stability temperature floor for gas cells.
Try changing this parameter ↗Type bool
Scientific impact Imposes an adaptive temperature floor intended to keep the Jeans length resolved.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Imposes an adaptive temperature floor intended to keep the Jeans length resolved.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.physics.magnetohydrodynamics
magnetohydrodynamics
EFFECTIVE VALUEfalse
Compile ideal magnetohydrodynamics.
Try changing this parameter ↗Type bool
Scientific impact Evolves ideal MHD; a zero initial magnetic field remains zero under the ideal-MHD equations.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Evolves ideal MHD; a zero initial magnetic field remains zero under the ideal-MHD equations.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.physics.magnetohydrodynamics.powell_cleaning
powell cleaning
EFFECTIVE VALUEfalse
Use Powell eight-wave divergence-control terms for MHD.
Try changing this parameter ↗Type bool
Scientific impact Adds Powell eight-wave divergence-control terms to the MHD equations.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Adds Powell eight-wave divergence-control terms to the MHD equations.
- Requires
- build.physics.magnetohydrodynamics
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.physics.magnetohydrodynamics.powell_limit_timestep
powell limit timestep
EFFECTIVE VALUEfalse
Limit timesteps for Powell divergence-control stability.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Performance impact
- Adds a timestep constraint required by Powell divergence control.
- Requires
- build.physics.magnetohydrodynamics
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.physics.star_formation
star formation
EFFECTIVE VALUEfalse
Compile the Springel-Hernquist multiphase star-formation model.
Try changing this parameter ↗Type bool
Scientific impact Turns eligible dense gas into collisionless star particles using the Springel-Hernquist (2003) model.
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Scientific impact
- Turns eligible dense gas into collisionless star particles using the Springel-Hernquist (2003) model.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.precision.fftw_double
fftw double
EFFECTIVE VALUEfalse
Use double-precision FFTW transforms.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.precision.mode
mode
EFFECTIVE VALUE1
Arepo precision mode; zero leaves DOUBLEPRECISION unspecified.
Try changing this parameter ↗Type int64
Schema & provenance ⌄
build.precision.neighbor_tree_double
neighbor tree double
EFFECTIVE VALUEfalse
Use double precision for neighbor-tree node extensions.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
build.time.force_equal_timesteps
force equal timesteps
EFFECTIVE VALUEtrue
Force all particles/cells onto equal timesteps.
Try changing this parameter ↗Type bool
Schema & provenance ⌄
Model metadata
- Tags
- arepo:config
- Applied schemas
- arepo_build ↗
- Supplied by schema
- arepo_build ↗
- Performance impact
- Can increase computational work by preventing individual adaptive timesteps.
Notes
Author guidance (advisory; not enforced by these metadata fields):
build.time.tree_based_timesteps
tree based timesteps
EFFECTIVE VALUEfalse
Use the non-local, tree-based timestep criterion.
Try changing this parameter ↗Type bool
Schema & provenance ⌄