non_local_manager.hh
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Created: Wed, May 15, 23:26

non_local_manager.hh
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	/**
	* @file non_local_manager.hh
	* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
	* @date Mon Sep 21 14:21:33 2015
	*
	* @brief Classes that manages all the non-local neighborhoods
	*
	* @section LICENSE
	*
	* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
	* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
	*
	* Akantu is free software: you can redistribute it and/or modify it under the
	* terms of the GNU Lesser General Public License as published by the Free
	* Software Foundation, either version 3 of the License, or (at your option) any
	* later version.
	*
	* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
	* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
	* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
	* details.
	*
	* You should have received a copy of the GNU Lesser General Public License
	* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
	*
	*/

	/* -------------------------------------------------------------------------- */
	#ifndef __AKANTU_NON_LOCAL_MANAGER_HH__
	#define __AKANTU_NON_LOCAL_MANAGER_HH__
	/* -------------------------------------------------------------------------- */
	#include "aka_memory.hh"
	#include "solid_mechanics_model.hh"
	#include "non_local_neighborhood_base.hh"
	#include "parsable.hh"
	/* -------------------------------------------------------------------------- */

	__BEGIN_AKANTU__

	class NonLocalManager : public Memory,
	public Parsable,
	public MeshEventHandler {
	/* ------------------------------------------------------------------------ */
	/* Constructors/Destructors */
	/* ------------------------------------------------------------------------ */
	public:
	NonLocalManager(SolidMechanicsModel & model,
	const ID & id = "non_local_manager",
	const MemoryID & memory_id = 0);
	virtual ~NonLocalManager();
	typedef std::map<ID, NonLocalNeighborhoodBase *> NeighborhoodMap;
	typedef std::pair<ID, ID> KeyCOO;


	/* -------------------------------------------------------------------------- */
	/* Methods */
	/* -------------------------------------------------------------------------- */
	public:

	/// initialize the non-local manager: compute pair lists and weights for all neighborhoods
	void init();

	/// insert new quadrature point in the grid
	inline void insertQuad(const IntegrationPoint & quad, const Vector<Real> & coords, const ID & neighborhood);

	/// register non-local neighborhood
	inline void registerNeighborhood(const ID & neighborhood, const ID & weight_func_id);

	/// associate a non-local variable to a neighborhood
	void nonLocalVariableToNeighborhood(const ID & id, const ID & neighborhood);

	/// return the fem object associated with a provided name
	inline NonLocalNeighborhoodBase & getNeighborhood(const ID & name) const;

	/// create the grid synchronizers for each neighborhood
	void createNeighborhoodSynchronizers();

	/// compute the weights in each neighborhood for non-local averaging
	inline void computeWeights();

	/// compute the weights in each neighborhood for non-local averaging
	inline void updatePairLists();

	/// register a new non-local material
	inline void registerNonLocalMaterial(Material & new_mat);

	/// register a non-local variable
	inline void registerNonLocalVariable(const ID & variable_name, const ID & nl_variable_name, UInt nb_component);

	/// average the non-local variables
	void averageInternals(const GhostType & ghost_type = _not_ghost);

	/// average the non-local variables
	//void testo(const GhostType & ghost_type = _not_ghost);

	/// average the internals and compute the non-local stresses
	void computeAllNonLocalStresses();

	/// register a new internal needed for the weight computations
	inline ElementTypeMapReal & registerWeightFunctionInternal(const ID & field_name);

	/// update the flattened version of the weight function internals
	inline void updateWeightFunctionInternals();

	/// get Nb data for synchronization in parallel
	inline UInt getNbDataForElements(const Array<Element> & elements, const ID & id) const;

	/// pack data for synchronization in parallel
	inline void packElementData(CommunicationBuffer & buffer, const Array<Element> & elements,
	SynchronizationTag tag, const ID & id) const;

	/// unpack data for synchronization in parallel
	inline void unpackElementData(CommunicationBuffer & buffer, const Array<Element> & elements,
	SynchronizationTag tag, const ID & id) const;

	/* -------------------------------------------------------------------------- */
	/* MeshEventHandler inherited members */
	/* -------------------------------------------------------------------------- */

	virtual void onElementsRemoved(const Array<Element> & element_list,
	const ElementTypeMapArray<UInt> & new_numbering,
	const RemovedElementsEvent & event);

	virtual void onElementsAdded(const Array<Element> & element_list,
	const NewElementsEvent & event);
	private:

	/// create a new neighborhood for a given domain ID
	void createNeighborhood(const ID & weight_func, const ID & neighborhood);

	/// flatten the material internal fields needed for the non-local computations
	void flattenInternal(ElementTypeMapReal & internal_flat,
	const GhostType & ghost_type,
	const ElementKind & kind);

	/// set the values of the jacobians
	void setJacobians(const FEEngine & fe_engine, const ElementKind & kind);

	/// allocation of eelment type maps
	void initElementTypeMap(UInt nb_component, ElementTypeMapReal & element_map);

	/// resizing of element type maps
	void resizeElementTypeMap(UInt nb_component, ElementTypeMapReal & element_map);

	/// remove integration points from element type maps
	void removeIntegrationPointsFromMap(const ElementTypeMapArray<UInt> & new_numbering, UInt nb_component, ElementTypeMapReal & element_map);

	/// allocate the non-local variables
	void initNonLocalVariables();

	/// copy the results of the averaging in the materials
	void distributeInternals(ElementKind kind);

	/// cleanup unneccessary ghosts
	void cleanupExtraGhostElements(ElementTypeMap<UInt> & nb_ghost_protected);

	/* ------------------------------------------------------------------------ */
	/* Accessors */
	/* ------------------------------------------------------------------------ */
	public:

	AKANTU_GET_MACRO(SpatialDimension, spatial_dimension, UInt);
	AKANTU_GET_MACRO(Model, model, const SolidMechanicsModel &);
	AKANTU_GET_MACRO_NOT_CONST(Volumes, volumes, ElementTypeMapReal &)
	AKANTU_GET_MACRO(NbStressCalls, compute_stress_calls, UInt);

	inline const Array<Real> & getJacobians(const ElementType & type, const GhostType & ghost_type) {
	return *jacobians(type, ghost_type);
	}

	/* ------------------------------------------------------------------------ */
	/* Class Members */
	/* ------------------------------------------------------------------------ */
	private:

	/// the non-local neighborhoods present
	NeighborhoodMap neighborhoods;

	/// list of all the non-local materials in the model
	std::vector<Material * > non_local_materials;

	struct NonLocalVariable {
	NonLocalVariable(const ID & variable_name, const ID & nl_variable_name, const ID & id, UInt nb_component) :
	local(variable_name, id),
	non_local(nl_variable_name, id),
	nb_component(nb_component){
	}
	ElementTypeMapReal local;
	ElementTypeMapReal non_local;
	UInt nb_component;
	};

	/// the non-local variables associated to a certain neighborhood
	std::map<ID, NonLocalVariable *> non_local_variables;

	/// reference to the model
	SolidMechanicsModel & model;

	/// jacobians for all the elements in the mesh
	ElementTypeMap<const Array<Real> * > jacobians;

	/// store the position of the quadrature points
	ElementTypeMapReal quad_positions;

	/// store the volume of each quadrature point for the non-local weight normalization
	ElementTypeMapReal volumes;

	/// the spatial dimension
	const UInt spatial_dimension;

	/// counter for computeStress calls
	UInt compute_stress_calls;

	/// map to store weight function types from input file
	std::map<ID, ParserSection> weight_function_types;

	/// map to store the internals needed by the weight functions
	std::map<ID, ElementTypeMapReal *> weight_function_internals;
	/* -------------------------------------------------------------------------- */
	/// the following are members needed to make this processor participate in the grid creation of neighborhoods he doesn't own as a member. For details see createGridSynchronizers function

	/// synchronizer registry for dummy grid synchronizers
	SynchronizerRegistry * dummy_registry;

	/// map of dummy synchronizers
	std::map<ID, GridSynchronizer *> dummy_synchronizers;

	/// dummy spatial grid
	SpatialGrid<IntegrationPoint> * dummy_grid;

	/// create a set of all neighborhoods present in the simulation
	std::set<ID> global_neighborhoods;

	class DummyDataAccessor : public DataAccessor {
	public:
	virtual inline UInt getNbDataForElements(){return 0;};
	virtual inline void packElementData(){};
	virtual inline void unpackElementData(){};
	};

	DummyDataAccessor dummy_accessor;
	};

	__END_AKANTU__

	/* -------------------------------------------------------------------------- */
	/* inline functions */
	/* -------------------------------------------------------------------------- */

	#include "non_local_manager_inline_impl.cc"


	#endif /* __AKANTU_NON_LOCAL_MANAGER_HH__ */

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