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ATC_Transfer.h
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Fri, Nov 1, 14:57

ATC_Transfer.h
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/** ATC_Transfer : coarse-graining methods */
#ifndef ATC_TRANSFER_H
#define ATC_TRANSFER_H
// ATC headers
#include "ATC_Method.h"
#include "MoleculeSet.h"
#include "AtomToMoleculeTransfer.h"
// Other headers
#include <map>
#include <string>
#include <vector>
namespace ATC {
// Forward declarations
class FE_Engine;
class StressCauchyBorn;
class TimeFilter;
class ATC_Transfer : public ATC_Method {
public:
// constructor
ATC_Transfer(std::string groupName,
double **& perAtomArray,
LAMMPS_NS::Fix * thisFix,
std::string matParamFile = "none");
// destructor
virtual ~ATC_Transfer();
/** parser/modifier */
virtual bool modify(int narg, char **arg);
/** pre time integration */
virtual void initialize();
/** post time integration */
virtual void finish();
/** first time substep routines */
virtual void pre_init_integrate();
/** second time substep routine */
virtual void pre_final_integrate();
virtual void post_final_integrate();
/** communication routines */
virtual void pre_neighbor() {ATC_Method::pre_neighbor(); neighborReset_ = true;};
/** output function */
virtual void output();
/** external access to hardy data and other information*/
const DENS_MAT * hardy_data(std::string field) { return &hardyData_[field].quantity(); }
protected:
/** pointer to position data : either x_reference or x_current */
double ** xPointer_;
/** data */
TAG_FIELDS hardyData_;
SmallMoleculeSet * smallMoleculeSet_; // KKM add
SmallMoleculeCentroid * moleculeCentroid_; // KKM add
SmallMoleculeDipoleMoment * dipoleMoment_; // KKM add
SmallMoleculeQuadrupoleMoment * quadrupoleMoment_; // KKM add
/** container for dependency managed data */
std::vector < DENS_MAN * > outputFields_;
std::map < std::string, DENS_MAN * > outputFieldsTagged_;
DENS_MAN * restrictedCharge_; // WIP/TEMP
/** work space */
DENS_MAT atomicScalar_;
DENS_MAT atomicVector_;
DENS_MAT atomicTensor_;
/** calculation flags */
Array<bool> fieldFlags_;
Array<bool> outputFlags_;
Array<bool> gradFlags_;
Array<bool> rateFlags_;
std::map<std::string,int> computes_;
bool outputStepZero_;
/** check whether atoms have shifted box or element or neighbors changed */
bool neighborReset_;
//---------------------------------------------------------------
/** initialization routines */
//---------------------------------------------------------------
/** gets baseline data from continuum model */
virtual void set_continuum_data();
/** sets up all data necessary to define the computational geometry */
virtual void set_computational_geometry();
/** sets up accumulant & interpolant */
virtual void construct_interpolant();
/** constructs all data which is updated with time integration, i.e. fields */
virtual void construct_time_integration_data();
/** create methods, e.g. time integrators, filters */
virtual void construct_methods();
/** set up data which is dependency managed */
virtual void construct_transfers();
/** sets up mol transfers */
virtual void construct_molecule_transfers();
/** compute atom to nodal quantities */
// OBSOLETE
void compute_energy(DENS_MAT & energy);
void compute_internal_energy(DENS_MAT & energy);
void compute_stress(DENS_MAT & stress);
void compute_heatflux(DENS_MAT & flux);
/** derived quantities: compute nodal to nodal quantities */
void compute_eshelby_stress(DENS_MAT & eshebly_stress,
const DENS_MAT & energy, const DENS_MAT & stress,
const DENS_MAT & displacement_gradient);
void cauchy_born_stress(const DENS_MAT &dudx, DENS_MAT &T, const DENS_MAT *temp=0);
void cauchy_born_energy(const DENS_MAT &dudx, DENS_MAT &T, const DENS_MAT *temp=0);
void cauchy_born_entropic_energy(const DENS_MAT &dudx, DENS_MAT &E, const DENS_MAT & T);
void compute_transformed_stress(DENS_MAT & stress,
const DENS_MAT & T, const DENS_MAT & displacement_gradient);
void compute_polar_decomposition(DENS_MAT & rotation,
DENS_MAT & stretch, const DENS_MAT & displacement_gradient);
void compute_elastic_deformation_gradient(DENS_MAT & elastic_def_grad,
const DENS_MAT & stress, const DENS_MAT & displacement_gradient);
void compute_elastic_deformation_gradient2(DENS_MAT & elastic_def_grad,
const DENS_MAT & stress, const DENS_MAT & displacement_gradient);
/** hybrid computes? */
void compute_electric_potential(DENS_MAT & electric_potential);
void compute_vacancy_concentration(DENS_MAT & vacancy_concentration,
const DENS_MAT & displacement_gradient,
const DENS_MAT & number_density);
/** calculate kinetic part of stress */
virtual void compute_kinetic_stress(DENS_MAT& stress);
/** calculate stress on-the-fly */
virtual void compute_potential_stress(DENS_MAT& stress) = 0;
/** calculate kinetic part of heat flux */
virtual void compute_kinetic_heatflux(DENS_MAT& flux);
/** calculate force part of the heat flux on-the-fly */
virtual void compute_potential_heatflux(DENS_MAT& flux) = 0;
/** compute molecule to nodal quantities */
void compute_dipole_moment(DENS_MAT & dipole_moment);
void compute_quadrupole_moment(DENS_MAT & quadrupole_moment);
/** calculate dislocation density tensor from DXA output */
virtual void compute_dislocation_density(DENS_MAT & dislocation_density) = 0;
/** compute smooth fields */
void compute_fields(void);
void time_filter_pre (double dt);
void time_filter_post(double dt);
/** mapping of atomic pairs to pair index value */
class PairMap * pairMap_;
class BondMatrix * bondMatrix_;
class PairVirial * pairVirial_;
class PairPotentialHeatFlux * pairHeatFlux_;
/** routine to calculate matrix of force & position dyads */
void compute_force_matrix();
/** routine to calculate matrix of heat flux vector components */
void compute_heat_matrix();
/** routine to calculate matrix of kernel functions */
virtual void compute_kernel_matrix_molecule() = 0; //KKM add
/** calculate projection on the fly*/
// REFACTOR use AtfKernelFunctionRestriction and derivatives
virtual void compute_projection(const DENS_MAT & atomData,
DENS_MAT & nodeData) = 0;
/** routine to calculate matrix of bond functions */
virtual void compute_bond_matrix();
/** routine to set xPointer to xref or xatom */
void set_xPointer();
/** number of atom types */
int nTypes_;
/** project : given w_\alpha,
w_I = \sum_\alpha N_{I\alpha} w_\alpha */
// REFACTOR AtfShapeFunctionRestriction
void project(const DENS_MAT & atomData,
DENS_MAT & nodeData);
void project_molecule(const DENS_MAT & molData,
DENS_MAT & nodeData); //KKM add
void project_molecule_gradient(const DENS_MAT & molData,
DENS_MAT & nodeData); //KKM add
/** project (number density): given w_\alpha,
w_I = \sum_\alpha N_{I\alpha} w_\alpha */
// REFACTOR AtfNodeWeightedShapeFunctionRestriction
void project_count_normalized(const DENS_MAT & atomData,
DENS_MAT & nodeData);
/** hardy_project (volume density): given w_\alpha,
w_I = 1/\Omega_I \sum_\alpha N_{I\alpha} w_\alpha
where \Omega_I = \int_{support region of node I} N_{I} dV */
// REFACTOR AtfNodeWeightedShapeFunctionRestriction
void project_volume_normalized(const DENS_MAT & atomData,
DENS_MAT & nodeData);
void project_volume_normalized_molecule(const DENS_MAT & molData,
DENS_MAT & nodeData); // KKM add
void project_volume_normalized_molecule_gradient(const DENS_MAT & molData,
DENS_MAT & nodeData); // KKM add
/** gradient_compute: given w_I,
w_J = \sum_I N_I'{xJ} \dyad w_I
where N_I'{xJ} is the gradient of the normalized
shape function of node I evaluated at node J */
// REFACTOR MatToGradBySparse
void gradient_compute(const DENS_MAT & inNodeData,
DENS_MAT & outNodeData);
int nNodesGlobal_;
int nComputes_;
/** workset data */
VectorDependencyManager<SPAR_MAT * > * gradientMatrix_;
SPAR_MAT atomicBondMatrix_;
DENS_MAT atomicForceMatrix_;
DENS_MAT atomicHeatMatrix_;
/** use pair/bond forces */
bool hasPairs_;
bool hasBonds_;
/** need to reset kernel function and bond matrix */
bool resetKernelFunction_;
/** use "exact" serial mode when using DXA to compute dislocation densities */
bool dxaExactMode_;
/** a continuum model to compare to and/or estimate quantities */
StressCauchyBorn * cauchyBornStress_;
Array<TimeFilter *> timeFilters_;
/** check consistency of fieldFlags_ */
void check_field_dependencies();
};
};
#endif

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