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rAKA/src/model/common/non_local_toolbox/non_local_manager.hh
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/**
* Copyright (©) 2010-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* 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/>.
*/
/* -------------------------------------------------------------------------- */
#include "communication_buffer.hh"
#include "data_accessor.hh"
#include "mesh_events.hh"
#include "non_local_manager_callback.hh"
#include "parsable.hh"
/* -------------------------------------------------------------------------- */
#include <map>
#include <set>
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_NON_LOCAL_MANAGER_HH_
#define AKANTU_NON_LOCAL_MANAGER_HH_
namespace akantu {
class Model;
class NonLocalNeighborhoodBase;
class GridSynchronizer;
class SynchronizerRegistry;
class IntegrationPoint;
template <typename T> class SpatialGrid;
class FEEngine;
} // namespace akantu
namespace akantu {
class NonLocalManager : public MeshEventHandler, public Parsable {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
NonLocalManager(Model & model, NonLocalManagerCallback & callback,
const ID & id = "non_local_manager");
~NonLocalManager() override;
using NeighborhoodMap =
std::map<ID, std::unique_ptr<NonLocalNeighborhoodBase>>;
/* ------------------------------------------------------------------------ */
/* Methods */
/* ----------------------------------------------------------------------- */
public:
/// register a new internal needed for the weight computations
ElementTypeMapReal & registerWeightFunctionInternal(const ID & field_name);
/// register a non-local variable
void registerNonLocalVariable(const ID & variable_name,
const ID & nl_variable_name, UInt nb_component);
/// register non-local neighborhood
inline void registerNeighborhood(const ID & neighborhood,
const ID & weight_func_id);
// void registerNonLocalManagerCallback(NonLocalManagerCallback & callback);
/// average the internals and compute the non-local stresses
virtual void computeAllNonLocalContribution();
/// initialize the non-local manager: compute pair lists and weights for all
/// neighborhoods
virtual void initialize();
/// synchronize once on a given tag using the neighborhoods synchronizer
void synchronize(DataAccessor<Element> & data_accessor,
const SynchronizationTag & /*tag*/);
protected:
/// create the grid synchronizers for each neighborhood
void createNeighborhoodSynchronizers();
/// compute the weights in each neighborhood for non-local averaging
void computeWeights();
/// compute the weights in each neighborhood for non-local averaging
void updatePairLists();
/// average the non-local variables
void averageInternals(GhostType ghost_type = _not_ghost);
/// update the flattened version of the weight function internals
void updateWeightFunctionInternals();
protected:
/// create a new neighborhood for a given domain ID
void createNeighborhood(const ID & weight_func, const ID & neighborhood);
/// set the values of the jacobians
void setJacobians(const FEEngine & fe_engine, ElementKind kind);
/// resizing of element type maps
void resizeElementTypeMap(Int nb_component, ElementTypeMapReal & element_map,
const FEEngine & fee,
ElementKind el_kind = _ek_regular);
/// remove integration points from element type maps
void removeIntegrationPointsFromMap(
const ElementTypeMapArray<Idx> & new_numbering, Int nb_component,
ElementTypeMapReal & element_map, const FEEngine & fee,
ElementKind el_kind = _ek_regular);
/// allocate the non-local variables
void initNonLocalVariables();
/// cleanup unneccessary ghosts
void
cleanupExtraGhostElements(); // ElementTypeMap<Int> & nb_ghost_protected);
/* ------------------------------------------------------------------------ */
/* DataAccessor kind of interface */
/* ------------------------------------------------------------------------ */
public:
/// get Nb data for synchronization in parallel
Int getNbData(const Array<Element> & elements, const ID & id) const;
/// pack data for synchronization in parallel
void packData(CommunicationBuffer & buffer, const Array<Element> & elements,
const ID & id) const;
/// unpack data for synchronization in parallel
void unpackData(CommunicationBuffer & buffer, const Array<Element> & elements,
const ID & id) const;
/* ------------------------------------------------------------------------ */
/* MeshEventHandler inherited members */
/* ------------------------------------------------------------------------ */
public:
void onElementsRemoved(const Array<Element> & element_list,
const ElementTypeMapArray<Idx> & new_numbering,
const RemovedElementsEvent & event) override;
void onElementsAdded(const Array<Element> & element_list,
const NewElementsEvent & event) override;
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
AKANTU_GET_MACRO_AUTO(SpatialDimension, spatial_dimension);
AKANTU_GET_MACRO_AUTO(Model, model);
AKANTU_GET_MACRO_AUTO_NOT_CONST(Model, model);
AKANTU_GET_MACRO_AUTO_NOT_CONST(Volumes, volumes)
AKANTU_GET_MACRO_AUTO(NbStressCalls, compute_stress_calls);
/// return the fem object associated with a provided name
inline NonLocalNeighborhoodBase & getNeighborhood(const ID & name) const;
inline const Array<Real> & getJacobians(ElementType type,
GhostType ghost_type) {
return (*jacobians)(type, ghost_type);
}
inline const ElementTypeMapArray<Real> & getJacobians() { return *jacobians; }
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
/// the spatial dimension
const Int spatial_dimension;
ID id;
protected:
/// the non-local neighborhoods present
NeighborhoodMap neighborhoods;
/// list of all the non-local materials in the model
// std::vector<ID> non_local_materials;
struct NonLocalVariable {
NonLocalVariable(const ID & variable_name, const ID & nl_variable_name,
const ID & id, Int nb_component)
: local(variable_name, id), non_local(nl_variable_name, id),
nb_component(nb_component) {}
ElementTypeMapReal local;
ElementTypeMapReal non_local;
Int nb_component;
};
/// the non-local variables associated to a certain neighborhood
std::map<ID, std::unique_ptr<NonLocalVariable>> non_local_variables;
/// reference to the model
Model & model;
/// jacobians for all the elements in the mesh
const ElementTypeMapArray<Real> * jacobians{nullptr};
/// store the position of the quadrature points
ElementTypeMapReal integration_points_positions;
/// store the volume of each quadrature point for the non-local weight
/// normalization
ElementTypeMapReal volumes;
/// counter for computeStress calls
Int 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, std::unique_ptr<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
std::unique_ptr<SynchronizerRegistry> dummy_registry;
/// map of dummy synchronizers
std::map<ID, std::unique_ptr<GridSynchronizer>> dummy_synchronizers;
/// dummy spatial grid
std::unique_ptr<SpatialGrid<IntegrationPoint>> dummy_grid;
/// create a set of all neighborhoods present in the simulation
std::set<ID> global_neighborhoods;
class DummyDataAccessor : public DataAccessor<Element> {
public:
inline Int getNbData(const Array<Element> &,
const SynchronizationTag &) const override {
return 0;
};
inline void packData(CommunicationBuffer & /*buffer*/,
const Array<Element> & /*element*/,
const SynchronizationTag & /*tag*/) const override{};
inline void unpackData(CommunicationBuffer & /*buffer*/,
const Array<Element> & /*element*/,
const SynchronizationTag & /*tag*/) override{};
};
DummyDataAccessor dummy_accessor;
/* ------------------------------------------------------------------------ */
NonLocalManagerCallback * callback;
};
} // namespace akantu
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
#include "non_local_manager_inline_impl.hh"
#endif /* AKANTU_NON_LOCAL_MANAGER_HH_ */
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