solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver Namespace Reference

This file is part of the MGHyPE project within Peano 4. More...

Data Structures
class	DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver
	Most efficient solver we have for this type of problem class. More...

Functions
	_hold_cell_and_face_data_guard (self)
	Goard when to hold data in mesh.
	_load_cell_and_face_data_guard (self)
	Goard when to hold data in mesh.
	_additional_includes (self)
	add_to_Peano4_datamodel (self, datamodel, verbose)
	add_use_statements (self, observer)
	add_to_plot (self, observer)
	Tell the project's observer how to plot the data.
	add_to_create_grid (self, observer)
	add_to_init_solution (self, observer)
	Solution initialisation.
	add_to_solve (self, observer)
	I ignore the order of the action sets here and instead derive my own ordering starting from _basic_descend_order.
	add_implementation_files_to_project (self, namespace, output, subdirectory="", abstract_overwrite=True)
	The solver creates two classes: An abstract base class and its implementations.
	get_face_merge_method (self)
	The actual merge of faces is simple, as we compute the numerical flux redundantly, i.e.
	create_dictionary (self)

Variables
	merge_implementation
	preprocessing_action_set
	postprocessing_action_set
	_basic_descend_order
int	descend_order = 0
	_action_set_update_face_solution
	_action_set_project_into_cell_and_update_cell_solution
	_action_set_project_onto_faces
	_action_set_update_residual
	_name
	max_h
	_solver_includes
	min_h
	_unknowns_per_cell
	_unknowns_per_face_solution
	_unknowns_per_face_projection
	_dimensions
	_unknowns_per_cell_node
	_solutions_per_face_node
	_projections_per_face_node
	_mass_matrix
	_mass_matrix_scaling
	_assembly_matrix
	_assembly_matrix_scaling
	_face_from_cell_projection
	_face_from_cell_projection_scaling
	_cell_from_face_projection
	_cell_from_face_projection_scaling
	_riemann_matrix
	_boundary_matrix
	_approximate_system_matrix
	_approximate_system_matrix_scaling
	_cell_relaxation
	_face_relaxation
	_poly_degree
	_solver_tolerance
	_custom_init_cell
	_integration_points
	_use_smart_pointer

Detailed Description

This file is part of the MGHyPE project within Peano 4.

For conditions of distribution and use, please see the copyright notice at www.peano-framework.org

Function Documentation

_additional_includes()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._additional_includes (   self )

protected

Definition at line 535 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_hold_cell_and_face_data_guard()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._hold_cell_and_face_data_guard (   self )

protected

Goard when to hold data in mesh.

Compare with the discussion in the Peano tutorial on when and how to load data. We don't need the data throughout the mesh construction, where it only blows up the memory consumption and makes the load balancing more expensive as we exchange data via MPI which, at this point, doesn't hold anything meaningful.

Definition at line 491 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_load_cell_and_face_data_guard()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._load_cell_and_face_data_guard (   self )

protected

Goard when to hold data in mesh.

Compare with the discussion in the Peano tutorial on when and how to load data. We don't need the data throughout the mesh construction, where it only blows up the memory consumption and makes the load balancing more expensive as we exchange data via MPI which, at this point, doesn't hold anything meaningful.

Definition at line 511 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

add_implementation_files_to_project()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.add_implementation_files_to_project	(		self,
			namespace,
			output,
			subdirectory = "",
			abstract_overwrite = True
	)

The solver creates two classes: An abstract base class and its implementations.

The abstract base class will be overwritten if there is one in the directory. I pipe all the Python constants into this base class, so they are available in the C++ code.

Definition at line 610 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

add_to_create_grid()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.add_to_create_grid	(		self,
			observer
	)

Definition at line 566 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

add_to_init_solution()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.add_to_init_solution	(		self,
			observer
	)

Solution initialisation.

Is given the project's observer and asks the solver to add all of its action sets to this one.

Parameters

observer

Observer Observer object of the underlying project representing its algorithmic step. Routine is asked to add its own action sets to this step.

Definition at line 571 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

add_to_Peano4_datamodel()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.add_to_Peano4_datamodel	(		self,
			datamodel,
			verbose
	)

Definition at line 542 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

References solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.add_to_Peano4_datamodel().

Referenced by solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.add_to_Peano4_datamodel().

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add_to_plot()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.add_to_plot	(		self,
			observer
	)

Tell the project's observer how to plot the data.

Nothing fancy here. We add plotters from Peano's toolbox to visualise solution and right-hand side.

Definition at line 548 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

add_to_solve()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.add_to_solve	(		self,
			observer
	)

I ignore the order of the action sets here and instead derive my own ordering starting from _basic_descend_order.

Definition at line 590 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

add_use_statements()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.add_use_statements	(		self,
			observer
	)

Definition at line 545 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

References solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.add_use_statements().

Referenced by solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.add_use_statements().

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create_dictionary()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.create_dictionary

(

self

)

Definition at line 677 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

get_face_merge_method()

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.get_face_merge_method

(

self

)

The actual merge of faces is simple, as we compute the numerical flux redundantly, i.e.

we really only have to copy stuff one way or the other.

Definition at line 653 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

Variable Documentation

_action_set_project_into_cell_and_update_cell_solution

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._action_set_project_into_cell_and_update_cell_solution

protected

Definition at line 485 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_action_set_project_onto_faces

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._action_set_project_onto_faces

protected

Definition at line 486 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_action_set_update_face_solution

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._action_set_update_face_solution

protected

Definition at line 484 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_action_set_update_residual

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._action_set_update_residual

protected

Definition at line 487 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_approximate_system_matrix

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._approximate_system_matrix

protected

Definition at line 703 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_approximate_system_matrix_scaling

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._approximate_system_matrix_scaling

protected

Definition at line 704 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_assembly_matrix

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._assembly_matrix

protected

Definition at line 695 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_assembly_matrix_scaling

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._assembly_matrix_scaling

protected

Definition at line 696 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_basic_descend_order

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._basic_descend_order

protected

Definition at line 474 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_boundary_matrix

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._boundary_matrix

protected

Definition at line 702 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_cell_from_face_projection

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._cell_from_face_projection

protected

Definition at line 699 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_cell_from_face_projection_scaling

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._cell_from_face_projection_scaling

protected

Definition at line 700 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_cell_relaxation

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._cell_relaxation

protected

Definition at line 705 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_custom_init_cell

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._custom_init_cell

protected

Definition at line 709 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_dimensions

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._dimensions

protected

Definition at line 688 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_face_from_cell_projection

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._face_from_cell_projection

protected

Definition at line 697 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_face_from_cell_projection_scaling

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._face_from_cell_projection_scaling

protected

Definition at line 698 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_face_relaxation

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._face_relaxation

protected

Definition at line 706 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_integration_points

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._integration_points

protected

Definition at line 710 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_mass_matrix

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._mass_matrix

protected

Definition at line 693 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_mass_matrix_scaling

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._mass_matrix_scaling

protected

Definition at line 694 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_name

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._name

protected

Definition at line 508 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_poly_degree

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._poly_degree

protected

Definition at line 707 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_projections_per_face_node

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._projections_per_face_node

protected

Definition at line 692 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_riemann_matrix

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._riemann_matrix

protected

Definition at line 701 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_solutions_per_face_node

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._solutions_per_face_node

protected

Definition at line 691 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_solver_includes

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._solver_includes

protected

Definition at line 679 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_solver_tolerance

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._solver_tolerance

protected

Definition at line 708 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_unknowns_per_cell

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._unknowns_per_cell

protected

Definition at line 684 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_unknowns_per_cell_node

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._unknowns_per_cell_node

protected

Definition at line 690 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_unknowns_per_face_projection

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._unknowns_per_face_projection

protected

Definition at line 686 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_unknowns_per_face_solution

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._unknowns_per_face_solution

protected

Definition at line 685 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

_use_smart_pointer

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver._use_smart_pointer

protected

Definition at line 711 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

descend_order

int solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.descend_order = 0

Definition at line 483 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

max_h

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.max_h

Definition at line 567 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

merge_implementation

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.merge_implementation

Definition at line 469 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

min_h

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.min_h

Definition at line 680 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

postprocessing_action_set

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.postprocessing_action_set

Definition at line 472 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.

preprocessing_action_set

solvers.api.DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.preprocessing_action_set

Definition at line 471 of file DiscontinuousGalerkinDiscretisationPointWiseRiemannSolver.py.