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Test only the density calculation algorithmic step. More...

Inheritance diagram for swift2.particle.tests.testDensityCalculation.testDensityCalculation:

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Collaboration diagram for swift2.particle.tests.testDensityCalculation.testDensityCalculation:

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Public Member Functions
	__init__ (self, name, dimensions_hydro, cfl_factor, initial_time_step_size, particles_per_cell=5, min_h=0.6, max_h=0.5)
	Initialise the particle.

Public Member Functions inherited from swift2.particle.SPHLeapfrogFixedSearchRadius.SPHLeapfrogFixedSearchRadius
	set_parameters (self)
	This function translates "global" particle parameters which are constant throughout the simulation (like CFL factor, minimal time step size, viscosity parameters...) into dastgen attributes of the C++ particle class.

	alpha_av (self)
	Viscosity parameters of the Minimal SPH model.

	alpha_av (self, alpha_av)

	beta_av (self)

	beta_av (self, beta_av)

	get_cpp_namespace_from_project_namespace (self)
	Transform namespace into cpp format.

	readme_descriptor (self)
	Create default readme descriptor.

Public Member Functions inherited from swift2.particle.SPHParticle.SPHParticle
	algorithm_steps (self)
	Return algorithm steps: A list of AlgorithmStep objects to be executed in that order for this particle.

	initialisation_steps (self)
	Return the list of algorithm steps to be executed during initialisation.

	hydro_dimensions (self)
	Forbid users to modify hydro dimensions on-the-fly.

	hydro_dimensions (self, hydro_dimensions)

	eta_factor (self)
	Set the eta factor used by the SPH kernel to target a certain number of neighbour particles.

	eta_factor (self, eta_factor)

	h_hydro_min (self)
	Set the limits allowed for the SPH smoothing length.

	h_hydro_min (self, h_hydro_min)

	h_hydro_max (self)

	h_hydro_max (self, h_hydro_max)

	h_tolerance (self)
	Tolerance for Newton-Raphson convergence criterion.

	h_tolerance (self, h_tolerance)

	h_max_iterations (self)
	Max number of iterations to adapt the SPH smoothing length.

	h_max_iterations (self, h_max_iterations)

	mantissa_size (self)
	Set the mantissa size of doubles and Peano double arrays if we want to use reduced precission via Clang annotations.

	mantissa_size (self, mantissa_size)

	switch_namespace_of_all_particle_iterators (self, new_namespace, old_namespace="::swift2::kernels::")
	Switch the prefix (namespace) of all particle iterators.

Public Member Functions inherited from peano4.datamodel.DaStGen2.DaStGen2
	configure (self, namespace, association, subdirectory="")
	Configure output.

	additional_load_and_store_arguments (self)

	additional_load_and_store_arguments (self, new_arguments)

	hosts_smart_pointer_attribute (self)
	Does class host a smart pointer attribute.

Public Member Functions inherited from peano4.datamodel.DoF.DoF
	get_full_qualified_type (self)

	get_logical_type_name (self)
	What should the data type be called within the data repository, or within action sets.

	get_enumeration_type (self)
	What should the data type be called within the data repository.

	additional_load_and_store_arguments_for_other_dof (self, argument_name, use_dof_association=None)
	You can make Peano's store and load arguments of any DoF depend on other DoFs that you have loaded before.

	subnamespace (self)

Protected Member Functions
	_setup_algorithm_steps (self)
	Set up the internal list of algorithm steps for this particle.

	_setup_initialisation_steps (self)
	Define the algorithm steps to be taken during initialization here.

Protected Member Functions inherited from swift2.particle.Particle.Particle
	_dependency_checks_modify_steps (self, steplist, step_type_name, peano4_event_enum)
	Add dependency checks as well as mesh consistency checks to the algorithm steps.

	_add_dependency_checks (self)
	Add dependency (particle consistency) checks.

Protected Attributes
	_algorithm_steps

	_initialisation_steps

Protected Attributes inherited from swift2.particle.SPHLeapfrogFixedSearchRadius.SPHLeapfrogFixedSearchRadius
	_sph_flavour

	_alpha_av

	_beta_av

	_hydro_dimensions

	_algorithm_steps

	_initialisation_steps

	_cfl_factor

	_initial_time_step_size

Protected Attributes inherited from swift2.particle.SPHParticle.SPHParticle
	_sph_flavour

	_cfl_factor

	_initial_time_step_size

	_constant_time_step_size

	_hydro_dimensions

	_eta_factor

	_h_max_iterations

	_h_hydro_min

	_h_hydro_max

	_h_tolerance

	_swift_project_namespace

	_mantissa_size

Protected Attributes inherited from swift2.particle.Particle.Particle
	_algorithm_steps

	_initialisation_steps

Protected Attributes inherited from peano4.datamodel.DaStGen2.DaStGen2
	_additional_load_and_store_arguments

Protected Attributes inherited from peano4.datamodel.DoF.DoF
	_additional_load_and_store_arguments

Additional Inherited Members
Data Fields inherited from swift2.particle.SPHLeapfrogFixedSearchRadius.SPHLeapfrogFixedSearchRadius
	balsara

	rot_v

	div_v

	v_sig_AV

	soundSpeed

	algorithm_steps_dict

Data Fields inherited from swift2.particle.SPHParticle.SPHParticle
	mass

	velocity

	acceleration

	density

	pressure

	smoothL

	u

	uDot

	v_full

	u_full

	wcount

	wcount_dh

	f

	hDot

	rho_dh

	sml_iteration_count

	sml_iter_left_bound

	sml_iter_right_bound

	has_no_neighbours

	sml_converged

	density_neighbourcount

	force_neighbourcount

Data Fields inherited from swift2.particle.Particle.Particle
	particles_per_cell

	min_h

	max_h

	name

Data Fields inherited from peano4.toolbox.particles.Particle.Particle
	name

	partid

Data Fields inherited from peano4.datamodel.DaStGen2.DaStGen2
	generator

	data

	peano4_mpi_and_storage_aspect

Data Fields inherited from peano4.datamodel.DoF.DoF
	association

	name

	namespace

	subdirectory

Static Public Attributes inherited from swift2.particle.Particle.Particle
str	DependencyChecks_Attribute_Prefix = "dependencyChecks"

list	DependencyChecks_Ifdefs = ["PeanoDebug > 0"]

Static Public Attributes inherited from peano4.datamodel.DaStGen2.DaStGen2
str	readme_package_descriptor

Detailed Description

Test only the density calculation algorithmic step.

Inherit everything from SPHLeapfrogFixedSearchRadius, just modify the algorithm steps.

Definition at line 14 of file testDensityCalculation.py.

Constructor & Destructor Documentation

◆ init()

swift2.particle.tests.testDensityCalculation.testDensityCalculation.__init__	(	self,
		name,
		particles_per_cell,
		min_h,
		max_h,
		constant_time_step_size = 5,
		swift_project_namespace = 0.6,
		particles_per_cell = 0.5 )

Initialise the particle.

This is the baseclass for a particle, i.e. we only add the absolute minimum of information to a particle. As we inherit from the toolbox particle, we already have some attributes defined. These are the guys which are not explicitly visible from the code snippet below, i.e. they are introduced by the superclass constructor.

Here's an overview of pre-defined attributes that each and every particle hosts:

A position which is a double vector with Dimension entries.
A search radius which describes the range with which other particles a particle might theoretically interact. The effective interaction might be smaller if a code decides to ignore potential interaction partners, i.e. this is an absolute maximum. The search radius will decide on which resolution level within the tree a particle is held.
A MoveState flag. This flag is essential. We use it later to label those particles that have been moved to avoid that we move particles multiple times.
A flag that indicates if a particle has been updated within a cell. Consult our code release papers: In short, a particle does not uniquely belong to one cell but can belong to many cells. We nevertheless want to update them only once.

See also: swift2.actionsets.UpdateParticleMarker

Reimplemented from swift2.particle.SPHLeapfrogFixedSearchRadius.SPHLeapfrogFixedSearchRadius.

Definition at line 23 of file testDensityCalculation.py.

References swift2.particle.tests.testDensityCalculation.testDensityCalculation.__init__(), swift2.particle.LeapfrogFixedSearchRadius.LeapfrogFixedSearchRadius._setup_algorithm_steps(), swift2.particle.SPHLeapfrogFixedSearchRadius.SPHLeapfrogFixedSearchRadius._setup_algorithm_steps(), swift2.particle.SPHParticle.SPHParticle._setup_algorithm_steps(), swift2.particle.tests.testDensityCalculation.testDensityCalculation._setup_algorithm_steps(), swift2.particle.LeapfrogFixedSearchRadius.LeapfrogFixedSearchRadius._setup_initialisation_steps(), swift2.particle.SPHLeapfrogFixedSearchRadius.SPHLeapfrogFixedSearchRadius._setup_initialisation_steps(), swift2.particle.SPHParticle.SPHParticle._setup_initialisation_steps(), and swift2.particle.tests.testDensityCalculation.testDensityCalculation._setup_initialisation_steps().

Referenced by swift2.particle.tests.testDensityCalculation.testDensityCalculation.__init__().

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Member Function Documentation

◆ _setup_algorithm_steps()

swift2.particle.tests.testDensityCalculation.testDensityCalculation._setup_algorithm_steps ( self )

protected

Set up the internal list of algorithm steps for this particle.

We need to maintain an individual instance of this list for cases where we modify the algorithm steps later on. This can happen for example when adding debugging/dependency checks later on.

The algorithm steps shall be a list of AlgorithmStep objects to be executed in that order.

Definitions of the algorithm steps stored in the algorithm_steps_dict are placed in _setup_algorithm_steps_dict(self). The dict is set up during instantiation of this class.

Reimplemented from swift2.particle.SPHLeapfrogFixedSearchRadius.SPHLeapfrogFixedSearchRadius.

Definition at line 49 of file testDensityCalculation.py.

References swift2.particle.SPHLeapfrogFixedSearchRadius.SPHLeapfrogFixedSearchRadius.algorithm_steps_dict.

Referenced by swift2.particle.tests.testDensityCalculation.testDensityCalculation.__init__().

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