forked from lijiext/lammps
2012 lines
74 KiB
C++
2012 lines
74 KiB
C++
// ATC_Transfer headers
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#include "ATC_Transfer.h"
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#include "ATC_Error.h"
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#include "FE_Engine.h"
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#include "LammpsInterface.h"
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#include "Quadrature.h"
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#include "VoigtOperations.h"
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#include "TransferLibrary.h"
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#include "Stress.h"
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#include "KernelFunction.h"
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#include "PerPairQuantity.h"
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#include "FieldManager.h"
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#define ESHELBY_VIRIAL
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#include "LinearSolver.h"
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// Other Headers
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#include <vector>
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#include <map>
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#include <set>
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#include <utility>
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#include <fstream>
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#include <sstream>
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#include <exception>
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// PLAN:
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//* energies
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//* filters - make filterFields class
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//* output directly
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//* enum, tagged, computes, mat(field to field) functions
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//* grads & rates
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//* on-the-fly
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// * remove derived classes
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using namespace std;
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using namespace ATC_Utility;
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using namespace voigt3;
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namespace ATC {
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const int numFields_ = 17;
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FieldName indices_[numFields_] = {
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CHARGE_DENSITY,
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MASS_DENSITY,
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SPECIES_CONCENTRATION,
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NUMBER_DENSITY,
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MOMENTUM,
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VELOCITY,
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PROJECTED_VELOCITY,
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DISPLACEMENT,
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POTENTIAL_ENERGY,
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KINETIC_ENERGY,
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KINETIC_TEMPERATURE,
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TEMPERATURE,
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CHARGE_FLUX,
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SPECIES_FLUX,
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THERMAL_ENERGY,
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ENERGY,
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INTERNAL_ENERGY
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};
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//KINETIC_STRESS;
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//ELECTRIC_POTENTIAL};
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ATC_Transfer::ATC_Transfer(string groupName,
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double ** & perAtomArray,
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LAMMPS_NS::Fix * thisFix,
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string matParamFile)
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: ATC_Method(groupName,perAtomArray,thisFix),
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xPointer_(NULL),
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outputStepZero_(true),
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neighborReset_(false),
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pairMap_(NULL),
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bondMatrix_(NULL),
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pairVirial_(NULL),
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pairHeatFlux_(NULL),
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nComputes_(0),
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hasPairs_(true),
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hasBonds_(false),
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resetKernelFunction_(false),
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dxaExactMode_(true),
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cauchyBornStress_(NULL)
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{
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nTypes_ = lammpsInterface_->ntypes();
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peScale_=1.;
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keScale_= lammpsInterface_->mvv2e();
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// if surrogate model of md (no physics model created)
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if (matParamFile != "none") {
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fstream fileId(matParamFile.c_str(), std::ios::in);
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if (!fileId.is_open()) throw ATC_Error("cannot open material file");
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CbData cb;
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LammpsInterface *lmp = LammpsInterface::instance();
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lmp->lattice(cb.cell_vectors, cb.basis_vectors);
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cb.inv_atom_volume = 1.0 / lmp->volume_per_atom();
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cb.e2mvv = 1.0 / lmp->mvv2e();
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cb.atom_mass = lmp->atom_mass(1);
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cb.boltzmann = lmp->boltz();
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cb.hbar = lmp->hbar();
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cauchyBornStress_ = new StressCauchyBorn(fileId, cb);
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}
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// Defaults
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set_time();
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outputFlags_.reset(NUM_TOTAL_FIELDS);
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outputFlags_ = false;
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fieldFlags_.reset(NUM_TOTAL_FIELDS);
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fieldFlags_ = false;
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gradFlags_.reset(NUM_TOTAL_FIELDS);
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gradFlags_ = false;
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rateFlags_.reset(NUM_TOTAL_FIELDS);
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rateFlags_ = false;
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outputFields_.resize(NUM_TOTAL_FIELDS);
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for (int i = 0; i < NUM_TOTAL_FIELDS; i++) { outputFields_[i] = NULL; }
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// Hardy requires ref positions for processor ghosts for bond list
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//needXrefProcessorGhosts_ = true;
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}
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//-------------------------------------------------------------------
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ATC_Transfer::~ATC_Transfer()
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{
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interscaleManager_.clear();
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if (cauchyBornStress_) delete cauchyBornStress_;
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}
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//-------------------------------------------------------------------
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// called before the beginning of a "run"
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void ATC_Transfer::initialize()
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{
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if (kernelOnTheFly_ && !readRefPE_ && !setRefPEvalue_) {
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if (setRefPE_) {
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stringstream ss;
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ss << "WARNING: Reference PE requested from atoms, but not yet implemented for on-the-fly, ignoring";
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lammpsInterface_->print_msg_once(ss.str());
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setRefPE_ = false;
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}
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}
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ATC_Method::initialize();
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if (!initialized_) {
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if (cauchyBornStress_) cauchyBornStress_->initialize();
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}
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if (!initialized_ || ATC::LammpsInterface::instance()->atoms_sorted() || resetKernelFunction_) {
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// initialize kernel function matrix N_Ia
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if (! kernelOnTheFly_) {
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try{
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if (!moleculeIds_.empty()) compute_kernel_matrix_molecule(); //KKM add
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}
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catch(bad_alloc&) {
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ATC::LammpsInterface::instance()->print_msg("kernel will be computed on-the-fly");
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kernelOnTheFly_ = true;
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}
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}
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resetKernelFunction_ = false;
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}
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// clears need for reset
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ghostManager_.initialize();
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// initialize bond matrix B_Iab
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if ((! bondOnTheFly_)
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&& ( ( fieldFlags_(STRESS)
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|| fieldFlags_(ESHELBY_STRESS)
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|| fieldFlags_(HEAT_FLUX) ) ) ) {
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try {
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compute_bond_matrix();
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}
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catch(bad_alloc&) {
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ATC::LammpsInterface::instance()->print_msg("stress/heat_flux will be computed on-the-fly");
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bondOnTheFly_ = true;
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}
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}
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// set sample frequency to output if sample has not be specified
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if (sampleFrequency_ == 0) sampleFrequency_ = outputFrequency_;
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// output for step 0
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if (!initialized_) {
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if (outputFrequency_ > 0) {
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// initialize filtered data
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compute_fields();
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for(int index=0; index < NUM_TOTAL_FIELDS; ++index) {
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if(fieldFlags_(index)) {
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string name = field_to_string((FieldName) index);
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filteredData_[name] = hardyData_[name];
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timeFilters_(index)->initialize(filteredData_[name].quantity());
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}
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if (rateFlags_(index)) {
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string name = field_to_string((FieldName) index);
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string rate_field = name + "_rate";
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filteredData_[rate_field] = hardyData_[rate_field];
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}
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if (gradFlags_(index)) {
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string name = field_to_string((FieldName) index);
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string grad_field = name + "_gradient";
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filteredData_[grad_field] = hardyData_[grad_field];
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}
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}
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int index = NUM_TOTAL_FIELDS;
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map <string,int>::const_iterator iter;
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for (iter = computes_.begin(); iter != computes_.end(); iter++) {
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string tag = iter->first;
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filteredData_[tag] = hardyData_[tag];
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timeFilters_(index)->initialize(filteredData_[tag].quantity());
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#ifdef ESHELBY_VIRIAL
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if (tag == "virial" && fieldFlags_(ESHELBY_STRESS)) {
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filteredData_["eshelby_virial"] = hardyData_["eshelby_virial"];
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}
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#endif
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index++;
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}
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output();
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}
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}
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initialized_ = true;
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lammpsInterface_->computes_addstep(lammpsInterface_->ntimestep()+sampleFrequency_);
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//remap_ghost_ref_positions();
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update_peratom_output();
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}
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//-------------------------------------------------------------------
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void ATC_Transfer::set_continuum_data()
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{
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ATC_Method::set_continuum_data();
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if (!initialized_) {
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nNodesGlobal_ = feEngine_->fe_mesh()->num_nodes();
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}
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}
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//-------------------------------------------------------------------
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void ATC_Transfer::construct_time_integration_data()
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{
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if (!initialized_) {
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// size arrays for requested/required fields
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for(int index=0; index < NUM_TOTAL_FIELDS; ++index) {
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if (fieldFlags_(index)) {
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int size = FieldSizes[index];
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if (atomToElementMapType_ == EULERIAN) {
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if (index == STRESS) size=6;
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if (index == CAUCHY_BORN_STRESS) size=6;
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}
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if (size == 0) {
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if (index == SPECIES_CONCENTRATION) size=typeList_.size()+groupList_.size();
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}
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string name = field_to_string((FieldName) index);
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hardyData_ [name].reset(nNodes_,size);
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filteredData_[name].reset(nNodes_,size);
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}
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}
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// size arrays for projected compute fields
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map <string,int>::const_iterator iter;
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for (iter = computes_.begin(); iter != computes_.end(); iter++) {
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string tag = iter->first;
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COMPUTE_POINTER cmpt = lammpsInterface_->compute_pointer(tag);
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int ncols = lammpsInterface_->compute_ncols_peratom(cmpt);
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hardyData_ [tag].reset(nNodes_,ncols);
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filteredData_[tag].reset(nNodes_,ncols);
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#ifdef ESHELBY_VIRIAL
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if (tag == "virial" && fieldFlags_(ESHELBY_STRESS)) {
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string esh = "eshelby_virial";
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int size = FieldSizes[ESHELBY_STRESS];
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hardyData_ [esh].reset(nNodes_,size);
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filteredData_[esh].reset(nNodes_,size);
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}
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#endif
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}
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}
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}
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//--------------------------------------------------------
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// set_computational_geometry
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// constructs needed transfer operators which define
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// hybrid atom/FE computational geometry
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//--------------------------------------------------------
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void ATC_Transfer::set_computational_geometry()
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{
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ATC_Method::set_computational_geometry();
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}
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//-------------------------------------------------------------------
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// construct_interpolant
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// constructs: interpolatn, accumulant, weights, and spatial derivatives
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//--------------------------------------------------------
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void ATC_Transfer::construct_interpolant()
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{
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// interpolant
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if (!(kernelOnTheFly_)) {
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// finite element shape functions for interpolants
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PerAtomShapeFunction * atomShapeFunctions = new PerAtomShapeFunction(this);
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interscaleManager_.add_per_atom_sparse_matrix(atomShapeFunctions,"Interpolant");
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shpFcn_ = atomShapeFunctions;
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}
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// accummulant and weights
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this->create_atom_volume();
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// accumulants
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if (kernelFunction_) {
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// kernel-based accumulants
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if (kernelOnTheFly_) {
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ConstantQuantity<double> * atomCount = new ConstantQuantity<double>(this,1.);
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interscaleManager_.add_per_atom_quantity(atomCount,"AtomCount");
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OnTheFlyKernelAccumulation * myWeights
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= new OnTheFlyKernelAccumulation(this,
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atomCount, kernelFunction_, atomCoarseGrainingPositions_);
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interscaleManager_.add_dense_matrix(myWeights,
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"KernelInverseWeights");
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accumulantWeights_ = new OnTheFlyKernelWeights(myWeights);
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}
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else {
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PerAtomKernelFunction * atomKernelFunctions = new PerAtomKernelFunction(this);
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interscaleManager_.add_per_atom_sparse_matrix(atomKernelFunctions,
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"Accumulant");
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accumulant_ = atomKernelFunctions;
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accumulantWeights_ = new AccumulantWeights(accumulant_);
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}
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accumulantInverseVolumes_ = new KernelInverseVolumes(this,kernelFunction_);
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interscaleManager_.add_diagonal_matrix(accumulantInverseVolumes_,
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"AccumulantInverseVolumes");
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interscaleManager_.add_diagonal_matrix(accumulantWeights_,
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"AccumulantWeights");
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}
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else {
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// mesh-based accumulants
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if (kernelOnTheFly_) {
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ConstantQuantity<double> * atomCount = new ConstantQuantity<double>(this,1.);
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interscaleManager_.add_per_atom_quantity(atomCount,"AtomCount");
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OnTheFlyMeshAccumulation * myWeights
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= new OnTheFlyMeshAccumulation(this,
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atomCount, atomCoarseGrainingPositions_);
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interscaleManager_.add_dense_matrix(myWeights,
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"KernelInverseWeights");
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accumulantWeights_ = new OnTheFlyKernelWeights(myWeights);
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} else {
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accumulant_ = shpFcn_;
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accumulantWeights_ = new AccumulantWeights(accumulant_);
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interscaleManager_.add_diagonal_matrix(accumulantWeights_,
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"AccumulantWeights");
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}
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}
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// gradient matrix
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if (gradFlags_.has_member(true)) {
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NativeShapeFunctionGradient * gradientMatrix = new NativeShapeFunctionGradient(this);
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interscaleManager_.add_vector_sparse_matrix(gradientMatrix,"GradientMatrix");
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gradientMatrix_ = gradientMatrix;
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}
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}
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//-------------------------------------------------------------------
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void ATC_Transfer::construct_molecule_transfers()
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{
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// molecule centroid, molecule charge, dipole moment and quadrupole moment calculations KKM add
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if (!moleculeIds_.empty()) {
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map<string,pair<MolSize,int> >::const_iterator molecule;
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InterscaleManager & interscaleManager = this->interscale_manager(); // KKM add, may be we do not need this as interscaleManager_ already exists.
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PerAtomQuantity<double> * atomProcGhostCoarseGrainingPositions_ = interscaleManager.per_atom_quantity("AtomicProcGhostCoarseGrainingPositions");
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FundamentalAtomQuantity * mass = interscaleManager_.fundamental_atom_quantity(LammpsInterface::ATOM_MASS,PROC_GHOST);
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molecule = moleculeIds_.begin();
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int groupbit = (molecule->second).second;
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smallMoleculeSet_ = new SmallMoleculeSet(this,groupbit);
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smallMoleculeSet_->initialize(); // KKM add, why should we?
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interscaleManager_.add_small_molecule_set(smallMoleculeSet_,"MoleculeSet");
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moleculeCentroid_ = new SmallMoleculeCentroid(this,mass,smallMoleculeSet_,atomProcGhostCoarseGrainingPositions_);
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interscaleManager_.add_dense_matrix(moleculeCentroid_,"MoleculeCentroid");
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AtomToSmallMoleculeTransfer<double> * moleculeMass =
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new AtomToSmallMoleculeTransfer<double>(this,mass,smallMoleculeSet_);
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interscaleManager_.add_dense_matrix(moleculeMass,"MoleculeMass");
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FundamentalAtomQuantity * atomicCharge = interscaleManager_.fundamental_atom_quantity(LammpsInterface::ATOM_CHARGE,PROC_GHOST);
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AtomToSmallMoleculeTransfer<double> * moleculeCharge =
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new AtomToSmallMoleculeTransfer<double>(this,atomicCharge,smallMoleculeSet_);
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interscaleManager_.add_dense_matrix(moleculeCharge,"MoleculeCharge");
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dipoleMoment_ = new SmallMoleculeDipoleMoment(this,atomicCharge,smallMoleculeSet_,atomProcGhostCoarseGrainingPositions_,moleculeCentroid_);
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interscaleManager_.add_dense_matrix(dipoleMoment_,"DipoleMoment");
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quadrupoleMoment_ = new SmallMoleculeQuadrupoleMoment(this,atomicCharge,smallMoleculeSet_,atomProcGhostCoarseGrainingPositions_,moleculeCentroid_);
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interscaleManager_.add_dense_matrix(quadrupoleMoment_,"QuadrupoleMoment");
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}
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}
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//----------------------------------------------------------------------
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// constructs quantities
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void ATC_Transfer::construct_transfers()
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{
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// set pointer to positions
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// REFACTOR use method's handling of xref/xpointer
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set_xPointer();
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ATC_Method::construct_transfers();
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// reference potential energy
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if (setRefPE_) {
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if (!setRefPEvalue_ && !readRefPE_) {
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FieldManager fmgr(this);
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nodalRefPotentialEnergy_ = fmgr.nodal_atomic_field(REFERENCE_POTENTIAL_ENERGY);
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}
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else {
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nodalRefPotentialEnergy_ = new DENS_MAN(nNodes_,1);
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nodalRefPotentialEnergy_->set_memory_type(PERSISTENT);
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interscaleManager_.add_dense_matrix(nodalRefPotentialEnergy_,
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field_to_string(REFERENCE_POTENTIAL_ENERGY));
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}
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}
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// for hardy-based fluxes
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bool needsBondMatrix = (! bondOnTheFly_ ) &&
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(fieldFlags_(STRESS)
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|| fieldFlags_(ESHELBY_STRESS)
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|| fieldFlags_(HEAT_FLUX));
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if (needsBondMatrix) {
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if (hasPairs_ && hasBonds_) {
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pairMap_ = new PairMapBoth(lammpsInterface_,groupbit_);
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}
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else if (hasBonds_) {
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pairMap_ = new PairMapBond(lammpsInterface_,groupbit_);
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}
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else if (hasPairs_) {
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pairMap_ = new PairMapNeighbor(lammpsInterface_,groupbit_);
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}
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}
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if (pairMap_) interscaleManager_.add_pair_map(pairMap_,"PairMap");
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if ( fieldFlags_(STRESS) || fieldFlags_(ESHELBY_STRESS) || fieldFlags_(HEAT_FLUX) ) {
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const FE_Mesh * fe_mesh = feEngine_->fe_mesh();
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if (!kernelBased_) {
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bondMatrix_ = new BondMatrixPartitionOfUnity(lammpsInterface_,*pairMap_,xPointer_,fe_mesh,accumulantInverseVolumes_);
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}
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else {
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bondMatrix_ = new BondMatrixKernel(lammpsInterface_,*pairMap_,xPointer_,fe_mesh,kernelFunction_);
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}
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}
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if (bondMatrix_) interscaleManager_.add_sparse_matrix(bondMatrix_,"BondMatrix");
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if ( fieldFlags_(STRESS) || fieldFlags_(ESHELBY_STRESS) ) {
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if (atomToElementMapType_ == LAGRANGIAN) {
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pairVirial_ = new PairVirialLagrangian(lammpsInterface_,*pairMap_,xref_);
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}
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else if (atomToElementMapType_ == EULERIAN) {
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pairVirial_ = new PairVirialEulerian(lammpsInterface_,*pairMap_);
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}
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else {
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throw ATC_Error("no atom to element map specified");
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}
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}
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if (pairVirial_) interscaleManager_.add_dense_matrix(pairVirial_,"PairVirial");
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if ( fieldFlags_(HEAT_FLUX) ) {
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if (atomToElementMapType_ == LAGRANGIAN) {
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pairHeatFlux_ = new PairPotentialHeatFluxLagrangian(lammpsInterface_,*pairMap_,xref_);
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}
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else if (atomToElementMapType_ == EULERIAN) {
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pairHeatFlux_ = new PairPotentialHeatFluxEulerian(lammpsInterface_,*pairMap_);
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}
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else {
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throw ATC_Error("no atom to element map specified");
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}
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}
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if (pairHeatFlux_) interscaleManager_.add_dense_matrix(pairHeatFlux_,"PairHeatFlux");
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FieldManager fmgr(this);
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// for(int index=0; index < NUM_TOTAL_FIELDS; ++index)
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for(int i=0; i < numFields_; ++i) {
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FieldName index = indices_[i];
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if (fieldFlags_(index)) {
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outputFields_[index] = fmgr.nodal_atomic_field(index);
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}
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}
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// WIP REJ - move to fmgr
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if (fieldFlags_(ELECTRIC_POTENTIAL)) {
|
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PerAtomQuantity<double> * atomCharge = interscaleManager_.fundamental_atom_quantity(LammpsInterface::ATOM_CHARGE);
|
|
restrictedCharge_ = fmgr.restricted_atom_quantity(CHARGE_DENSITY,"default",atomCharge);
|
|
}
|
|
|
|
// computes
|
|
map <string,int>::const_iterator iter;
|
|
for (iter = computes_.begin(); iter != computes_.end(); iter++) {
|
|
string tag = iter->first;
|
|
ComputedAtomQuantity * c = new ComputedAtomQuantity(this, tag);
|
|
interscaleManager_.add_per_atom_quantity(c,tag);
|
|
int projection = iter->second;
|
|
DIAG_MAN * w = NULL;
|
|
if (projection == VOLUME_NORMALIZATION )
|
|
{ w = accumulantInverseVolumes_; }
|
|
else if (projection == NUMBER_NORMALIZATION )
|
|
{ w = accumulantWeights_; }
|
|
if (kernelFunction_ && kernelOnTheFly_) {
|
|
OnTheFlyKernelAccumulationNormalized * C = new OnTheFlyKernelAccumulationNormalized(this, c, kernelFunction_, atomCoarseGrainingPositions_, w);
|
|
interscaleManager_.add_dense_matrix(C,tag);
|
|
outputFieldsTagged_[tag] = C;
|
|
}
|
|
else {
|
|
AtfProjection * C = new AtfProjection(this, c, accumulant_, w);
|
|
interscaleManager_.add_dense_matrix(C,tag);
|
|
outputFieldsTagged_[tag] = C;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// sets initial values of filtered quantities
|
|
void ATC_Transfer::construct_methods()
|
|
{
|
|
ATC_Method::construct_methods();
|
|
|
|
if ((!initialized_) || timeFilterManager_.need_reset()) {
|
|
timeFilters_.reset(NUM_TOTAL_FIELDS+nComputes_);
|
|
sampleCounter_ = 0;
|
|
|
|
// for filtered fields
|
|
for(int index=0; index < NUM_TOTAL_FIELDS; ++index) {
|
|
if (fieldFlags_(index)) {
|
|
string name = field_to_string((FieldName) index);
|
|
filteredData_[name] = 0.0;
|
|
timeFilters_(index) = timeFilterManager_.construct();
|
|
}
|
|
}
|
|
|
|
// for filtered projected computes
|
|
|
|
// lists/accessing of fields ( & computes)
|
|
map <string,int>::const_iterator iter;
|
|
int index = NUM_TOTAL_FIELDS;
|
|
for (iter = computes_.begin(); iter != computes_.end(); iter++) {
|
|
string tag = iter->first;
|
|
filteredData_[tag] = 0.0;
|
|
timeFilters_(index) = timeFilterManager_.construct();
|
|
index++;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------
|
|
// called after the end of a "run"
|
|
void ATC_Transfer::finish()
|
|
{
|
|
// base class
|
|
ATC_Method::finish();
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// this is the parser
|
|
bool ATC_Transfer::modify(int narg, char **arg)
|
|
{
|
|
bool match = false;
|
|
|
|
int argIdx = 0;
|
|
// check to see if it is a transfer class command
|
|
/*! \page man_hardy_fields fix_modify AtC fields
|
|
\section syntax
|
|
fix_modify AtC fields <all | none> \n
|
|
fix_modify AtC fields <add | delete> <list_of_fields> \n
|
|
- all | none (keyword) = output all or no fields \n
|
|
- add | delete (keyword) = add or delete the listed output fields \n
|
|
- fields (keyword) = \n
|
|
density : mass per unit volume \n
|
|
displacement : displacement vector \n
|
|
momentum : momentum per unit volume \n
|
|
velocity : defined by momentum divided by density \n
|
|
projected_velocity : simple kernel estimation of atomic velocities \n
|
|
temperature : temperature derived from the relative atomic kinetic energy (as done by ) \n
|
|
kinetic_temperature : temperature derived from the full kinetic energy \n
|
|
number_density : simple kernel estimation of number of atoms per unit volume \n
|
|
stress :
|
|
Cauchy stress tensor for eulerian analysis (atom_element_map), or
|
|
1st Piola-Kirchhoff stress tensor for lagrangian analysis \n
|
|
transformed_stress :
|
|
1st Piola-Kirchhoff stress tensor for eulerian analysis (atom_element_map), or
|
|
Cauchy stress tensor for lagrangian analysis \n
|
|
heat_flux : spatial heat flux vector for eulerian,
|
|
or referential heat flux vector for lagrangian \n
|
|
potential_energy : potential energy per unit volume \n
|
|
kinetic_energy : kinetic energy per unit volume \n
|
|
thermal_energy : thermal energy (kinetic energy - continuum kinetic energy) per unit volume \n
|
|
internal_energy : total internal energy (potential + thermal) per unit volume \n
|
|
energy : total energy (potential + kinetic) per unit volume \n
|
|
number_density : number of atoms per unit volume \n
|
|
eshelby_stress: configurational stress (energy-momentum) tensor defined by Eshelby
|
|
[References: Philos. Trans. Royal Soc. London A, Math. Phys. Sci., Vol. 244,
|
|
No. 877 (1951) pp. 87-112; J. Elasticity, Vol. 5, Nos. 3-4 (1975) pp. 321-335] \n
|
|
vacancy_concentration: volume fraction of vacancy content \n
|
|
type_concentration: volume fraction of a specific atom type \n
|
|
\section examples
|
|
<TT> fix_modify AtC fields add velocity temperature </TT>
|
|
\section description
|
|
Allows modification of the fields calculated and output by the
|
|
transfer class. The commands are cumulative, e.g.\n
|
|
<TT> fix_modify AtC fields none </TT> \n
|
|
followed by \n
|
|
<TT> fix_modify AtC fields add velocity temperature </TT> \n
|
|
will only output the velocity and temperature fields.
|
|
\section restrictions
|
|
Must be used with the hardy/field type of AtC fix, see \ref man_fix_atc.
|
|
Currently, the stress and heat flux formulas are only correct for
|
|
central force potentials, e.g. Lennard-Jones and EAM
|
|
but not Stillinger-Weber.
|
|
\section related
|
|
See \ref man_hardy_gradients , \ref man_hardy_rates and \ref man_hardy_computes
|
|
\section default
|
|
By default, no fields are output
|
|
*/
|
|
if (strcmp(arg[argIdx],"fields")==0) {
|
|
argIdx++;
|
|
if (strcmp(arg[argIdx],"all")==0) {
|
|
outputFlags_ = true;
|
|
match = true;
|
|
}
|
|
else if (strcmp(arg[argIdx],"none")==0) {
|
|
outputFlags_ = false;
|
|
match = true;
|
|
}
|
|
else if (strcmp(arg[argIdx],"add")==0) {
|
|
argIdx++;
|
|
for (int i = argIdx; i < narg; ++i) {
|
|
FieldName field_name = string_to_field(arg[i]);
|
|
outputFlags_(field_name) = true;
|
|
}
|
|
match = true;
|
|
}
|
|
else if (strcmp(arg[argIdx],"delete")==0) {
|
|
argIdx++;
|
|
for (int i = argIdx; i < narg; ++i) {
|
|
FieldName field_name = string_to_field(arg[i]);
|
|
outputFlags_(field_name) = false;
|
|
}
|
|
match = true;
|
|
}
|
|
check_field_dependencies();
|
|
if (fieldFlags_(DISPLACEMENT)) { trackDisplacement_ = true; }
|
|
}
|
|
|
|
/*! \page man_hardy_gradients fix_modify AtC gradients
|
|
\section syntax
|
|
fix_modify AtC gradients <add | delete> <list_of_fields> \n
|
|
- add | delete (keyword) = add or delete the calculation of gradients for the listed output fields \n
|
|
- fields (keyword) = \n
|
|
gradients can be calculated for all fields listed in \ref man_hardy_fields
|
|
|
|
\section examples
|
|
<TT> fix_modify AtC gradients add temperature velocity stress </TT> \n
|
|
<TT> fix_modify AtC gradients delete velocity </TT> \n
|
|
\section description
|
|
Requests calculation and output of gradients of the fields from the
|
|
transfer class. These gradients will be with regard to spatial or material
|
|
coordinate for eulerian or lagrangian analysis, respectively, as specified by
|
|
atom_element_map (see \ref man_atom_element_map )
|
|
\section restrictions
|
|
Must be used with the hardy/field type of AtC fix
|
|
( see \ref man_fix_atc )
|
|
\section related
|
|
\section default
|
|
No gradients are calculated by default
|
|
*/
|
|
else if (strcmp(arg[argIdx],"gradients")==0) {
|
|
argIdx++;
|
|
if (strcmp(arg[argIdx],"add")==0) {
|
|
argIdx++;
|
|
FieldName field_name;
|
|
for (int i = argIdx; i < narg; ++i) {
|
|
field_name = string_to_field(arg[i]);
|
|
gradFlags_(field_name) = true;
|
|
}
|
|
match = true;
|
|
}
|
|
else if (strcmp(arg[argIdx],"delete")==0) {
|
|
argIdx++;
|
|
FieldName field_name;
|
|
for (int i = argIdx; i < narg; ++i) {
|
|
field_name = string_to_field(arg[i]);
|
|
gradFlags_(field_name) = false;
|
|
}
|
|
match = true;
|
|
}
|
|
}
|
|
|
|
/*! \page man_hardy_rates fix_modify AtC rates
|
|
\section syntax
|
|
fix_modify AtC rates <add | delete> <list_of_fields> \n
|
|
- add | delete (keyword) = add or delete the calculation of rates (time derivatives) for the listed output fields \n
|
|
- fields (keyword) = \n
|
|
rates can be calculated for all fields listed in \ref man_hardy_fields
|
|
|
|
\section examples
|
|
<TT> fix_modify AtC rates add temperature velocity stress </TT> \n
|
|
<TT> fix_modify AtC rates delete stress </TT> \n
|
|
\section description
|
|
Requests calculation and output of rates (time derivatives) of the fields from the
|
|
transfer class. For eulerian analysis (see \ref man_atom_element_map ), these rates
|
|
are the partial time derivatives of the nodal fields, not the full (material) time
|
|
derivatives. \n
|
|
\section restrictions
|
|
Must be used with the hardy/field type of AtC fix
|
|
( see \ref man_fix_atc )
|
|
\section related
|
|
\section default
|
|
No rates are calculated by default
|
|
*/
|
|
else if (strcmp(arg[argIdx],"rates")==0) {
|
|
argIdx++;
|
|
if (strcmp(arg[argIdx],"add")==0) {
|
|
argIdx++;
|
|
FieldName field_name;
|
|
for (int i = argIdx; i < narg; ++i) {
|
|
field_name = string_to_field(arg[i]);
|
|
rateFlags_(field_name) = true;
|
|
}
|
|
match = true;
|
|
}
|
|
else if (strcmp(arg[argIdx],"delete")==0) {
|
|
argIdx++;
|
|
FieldName field_name;
|
|
for (int i = argIdx; i < narg; ++i) {
|
|
field_name = string_to_field(arg[i]);
|
|
rateFlags_(field_name) = false;
|
|
}
|
|
match = true;
|
|
}
|
|
}
|
|
|
|
|
|
/*! \page man_pair_interactions fix_modify AtC pair_interactions/bond_interactions
|
|
\section syntax
|
|
fix_modify AtC pair_interactions <on|off> \n
|
|
fix_modify AtC bond_interactions <on|off> \n
|
|
|
|
\section examples
|
|
<TT> fix_modify AtC bond_interactions on </TT> \n
|
|
\section description
|
|
include bonds and/or pairs in the stress and heat flux computations
|
|
\section restrictions
|
|
\section related
|
|
\section default
|
|
pair interactions: on, bond interactions: off
|
|
*/
|
|
if (strcmp(arg[argIdx],"pair_interactions")==0) { // default true
|
|
argIdx++;
|
|
if (strcmp(arg[argIdx],"on")==0) { hasPairs_ = true; }
|
|
else { hasPairs_ = false;}
|
|
match = true;
|
|
}
|
|
if (strcmp(arg[argIdx],"bond_interactions")==0) { // default false
|
|
argIdx++;
|
|
if (strcmp(arg[argIdx],"on")==0) { hasBonds_ = true; }
|
|
else { hasBonds_ = false;}
|
|
match = true;
|
|
}
|
|
|
|
/*! \page man_hardy_computes fix_modify AtC computes
|
|
\section syntax
|
|
fix_modify AtC computes <add | delete> [per-atom compute id] <volume | number> \n
|
|
- add | delete (keyword) = add or delete the calculation of an equivalent continuum field
|
|
for the specified per-atom compute as volume or number density quantity \n
|
|
- per-atom compute id = name/id for per-atom compute,
|
|
fields can be calculated for all per-atom computes available from LAMMPS \n
|
|
- volume | number (keyword) = field created is a per-unit-volume quantity
|
|
or a per-atom quantity as weighted by kernel functions \n
|
|
|
|
\section examples
|
|
<TT> compute virial all stress/atom </TT> \n
|
|
<TT> fix_modify AtC computes add virial volume </TT> \n
|
|
<TT> fix_modify AtC computes delete virial </TT> \n
|
|
\n
|
|
<TT> compute centrosymmetry all centro/atom </TT> \n
|
|
<TT> fix_modify AtC computes add centrosymmetry number </TT> \n
|
|
\section description
|
|
Calculates continuum fields corresponding to specified per-atom computes created by LAMMPS \n
|
|
\section restrictions
|
|
Must be used with the hardy/field type of AtC fix ( see \ref man_fix_atc ) \n
|
|
Per-atom compute must be specified before corresponding continuum field can be requested \n
|
|
\section related
|
|
See manual page for compute
|
|
\section default
|
|
No defaults exist for this command
|
|
*/
|
|
else if (strcmp(arg[argIdx],"computes")==0) {
|
|
argIdx++;
|
|
if (strcmp(arg[argIdx],"add")==0) {
|
|
argIdx++;
|
|
string tag(arg[argIdx++]);
|
|
int normalization = NO_NORMALIZATION;
|
|
if (narg > argIdx) {
|
|
if (strcmp(arg[argIdx],"volume")==0) {
|
|
normalization = VOLUME_NORMALIZATION;
|
|
}
|
|
else if (strcmp(arg[argIdx],"number")==0) {
|
|
normalization = NUMBER_NORMALIZATION;
|
|
}
|
|
else if (strcmp(arg[argIdx],"mass")==0) {
|
|
normalization = MASS_NORMALIZATION;
|
|
throw ATC_Error("mass normalized not implemented");
|
|
}
|
|
}
|
|
computes_[tag] = normalization;
|
|
nComputes_++;
|
|
match = true;
|
|
}
|
|
else if (strcmp(arg[argIdx],"delete")==0) {
|
|
argIdx++;
|
|
string tag(arg[argIdx]);
|
|
if (computes_.find(tag) != computes_.end()) {
|
|
computes_.erase(tag);
|
|
nComputes_--;
|
|
}
|
|
else {
|
|
throw ATC_Error(tag+" compute is not in list");
|
|
}
|
|
match = true;
|
|
}
|
|
}
|
|
|
|
|
|
/*! \page man_sample_frequency fix_modify AtC sample_frequency
|
|
\section syntax
|
|
fix_modify AtC sample_frequency [freq]
|
|
- freq (int) : frequency to sample field in number of steps
|
|
\section examples
|
|
<TT> fix_modify AtC sample_frequency 10
|
|
\section description
|
|
Specifies a frequency at which fields are computed for the case
|
|
where time filters are being applied.
|
|
\section restrictions
|
|
Must be used with the hardy/field AtC fix ( see \ref man_fix_atc )
|
|
and is only relevant when time filters are being used.
|
|
\section related
|
|
\section default
|
|
none
|
|
*/
|
|
else if (strcmp(arg[argIdx],"sample_frequency")==0) {
|
|
argIdx++;
|
|
int value = outputFrequency_; // default to output frequency
|
|
if (narg > 1) {
|
|
if (atoi(arg[argIdx]) > 0) value = atoi(arg[argIdx]);
|
|
}
|
|
sampleFrequency_ = value;
|
|
match = true;
|
|
} // end "sample_frequency"
|
|
|
|
// no match, call base class parser
|
|
if (!match) {
|
|
match = ATC_Method::modify(narg, arg);
|
|
}
|
|
|
|
return match;
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// called at the beginning of a timestep
|
|
void ATC_Transfer::pre_init_integrate()
|
|
{
|
|
ATC_Method::pre_init_integrate();
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// called at the beginning of second half timestep
|
|
// REFACTOR move this to post_neighbor
|
|
void ATC_Transfer::pre_final_integrate()
|
|
{
|
|
// update time
|
|
update_time(); // time uses step if dt = 0
|
|
|
|
|
|
|
|
if ( neighborReset_ && sample_now() ) {
|
|
if (! kernelOnTheFly_ ) {
|
|
if (!moleculeIds_.empty()) compute_kernel_matrix_molecule(); //KKM add
|
|
}
|
|
neighborReset_ = false;
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// called at the end of second half timestep
|
|
void ATC_Transfer::post_final_integrate()
|
|
{
|
|
// compute spatially smoothed quantities
|
|
double dt = lammpsInterface_->dt();
|
|
if ( sample_now() ) {
|
|
|
|
bool needsBond = (! bondOnTheFly_ ) &&
|
|
(fieldFlags_(STRESS)
|
|
|| fieldFlags_(ESHELBY_STRESS)
|
|
|| fieldFlags_(HEAT_FLUX));
|
|
|
|
if ( needsBond ) {
|
|
if (pairMap_->need_reset()) {
|
|
// ATC::LammpsInterface::instance()->print_msg("Recomputing bond matrix due to atomReset_ value");
|
|
compute_bond_matrix();
|
|
}
|
|
}
|
|
time_filter_pre (dt);
|
|
compute_fields();
|
|
time_filter_post(dt);
|
|
lammpsInterface_->computes_addstep(lammpsInterface_->ntimestep()+sampleFrequency_);
|
|
}
|
|
|
|
// output
|
|
if ( output_now() && !outputStepZero_ ) output();
|
|
outputStepZero_ = false;
|
|
|
|
//ATC_Method::post_final_integrate();
|
|
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
void ATC_Transfer::compute_bond_matrix(void)
|
|
{
|
|
bondMatrix_->reset();
|
|
}
|
|
//-------------------------------------------------------------------
|
|
void ATC_Transfer::compute_fields(void)
|
|
{
|
|
|
|
// keep per-atom computes fresh. JAZ and REJ not sure why;
|
|
// need to confer with JAT. (JAZ, 4/5/12)
|
|
interscaleManager_.lammps_force_reset();
|
|
|
|
// (1) direct quantities
|
|
for(int i=0; i < numFields_; ++i) {
|
|
FieldName index = indices_[i];
|
|
if (fieldFlags_(index)) {
|
|
DENS_MAT & data(hardyData_[field_to_string(index)].set_quantity());
|
|
data = (outputFields_[index])->quantity();
|
|
}
|
|
}
|
|
|
|
if (fieldFlags_(STRESS))
|
|
compute_stress(hardyData_["stress"].set_quantity());
|
|
if (fieldFlags_(HEAT_FLUX))
|
|
compute_heatflux(hardyData_["heat_flux"].set_quantity());
|
|
// molecule data
|
|
if (fieldFlags_(DIPOLE_MOMENT))
|
|
compute_dipole_moment(hardyData_["dipole_moment"].set_quantity());
|
|
if (fieldFlags_(QUADRUPOLE_MOMENT))
|
|
compute_quadrupole_moment(hardyData_["quadrupole_moment"].set_quantity());
|
|
if (fieldFlags_(DISLOCATION_DENSITY))
|
|
compute_dislocation_density(hardyData_["dislocation_density"].set_quantity());
|
|
|
|
// (2) derived quantities
|
|
// compute: gradients
|
|
if (gradFlags_.has_member(true)) {
|
|
for(int index=0; index < NUM_TOTAL_FIELDS; ++index) {
|
|
if (gradFlags_(index)) {
|
|
string field= field_to_string((FieldName) index);
|
|
string grad_field = field + "_gradient";
|
|
if (hardyData_.find(field) == hardyData_.end() ) {
|
|
throw ATC_Error("field " + field + " needs to be defined for gradient");
|
|
}
|
|
gradient_compute(hardyData_[field].quantity(), hardyData_[grad_field].set_quantity());
|
|
}
|
|
}
|
|
}
|
|
// compute: eshelby stress
|
|
if (fieldFlags_(ESHELBY_STRESS)) {
|
|
{
|
|
compute_eshelby_stress(hardyData_["eshelby_stress"].set_quantity(),
|
|
hardyData_["internal_energy"].quantity(),
|
|
hardyData_["stress"].quantity(),
|
|
hardyData_["displacement_gradient"].quantity());
|
|
}
|
|
}
|
|
if (fieldFlags_(CAUCHY_BORN_ESHELBY_STRESS)) {
|
|
DENS_MAT & H = hardyData_["displacement_gradient"].set_quantity();
|
|
DENS_MAT E(H.nRows(),1);
|
|
ATOMIC_DATA::const_iterator tfield = hardyData_.find("temperature");
|
|
const DENS_MAT *temp = tfield==hardyData_.end() ? NULL : &((tfield->second).quantity());
|
|
//DENS_MAT & T = hardyData_["temperature"];
|
|
//cauchy_born_entropic_energy(H,E,T); E += hardyData_["internal_energy"];
|
|
cauchy_born_energy(H, E, temp);
|
|
|
|
compute_eshelby_stress(hardyData_["cauchy_born_eshelby_stress"].set_quantity(),
|
|
E,hardyData_["stress"].quantity(),
|
|
hardyData_["displacement_gradient"].quantity());
|
|
}
|
|
// compute: cauchy born stress
|
|
if (fieldFlags_(CAUCHY_BORN_STRESS)) {
|
|
ATOMIC_DATA::const_iterator tfield = hardyData_.find("temperature");
|
|
const DENS_MAT *temp = tfield==hardyData_.end() ? NULL : &((tfield->second).quantity());
|
|
cauchy_born_stress(hardyData_["displacement_gradient"].quantity(),
|
|
hardyData_["cauchy_born_stress"].set_quantity(), temp);
|
|
}
|
|
// compute: cauchy born energy
|
|
if (fieldFlags_(CAUCHY_BORN_ENERGY)) {
|
|
ATOMIC_DATA::const_iterator tfield = hardyData_.find("temperature");
|
|
const DENS_MAT *temp = tfield==hardyData_.end() ? NULL : &((tfield->second).quantity());
|
|
cauchy_born_energy(hardyData_["displacement_gradient"].quantity(),
|
|
hardyData_["cauchy_born_energy"].set_quantity(), temp);
|
|
}
|
|
// 1st PK transformed to cauchy (lag) or cauchy transformed to 1st PK (eul)
|
|
if (fieldFlags_(TRANSFORMED_STRESS)) {
|
|
compute_transformed_stress(hardyData_["transformed_stress"].set_quantity(),
|
|
hardyData_["stress"].quantity(),
|
|
hardyData_["displacement_gradient"].quantity());
|
|
}
|
|
if (fieldFlags_(VACANCY_CONCENTRATION)) {
|
|
compute_vacancy_concentration(hardyData_["vacancy_concentration"].set_quantity(),
|
|
hardyData_["displacement_gradient"].quantity(),
|
|
hardyData_["number_density"].quantity());
|
|
}
|
|
if (fieldFlags_(ELECTRIC_POTENTIAL)) {
|
|
compute_electric_potential(
|
|
hardyData_[field_to_string(ELECTRIC_POTENTIAL)].set_quantity());
|
|
}
|
|
// compute: rotation and/or stretch from deformation gradient
|
|
if (fieldFlags_(ROTATION) || fieldFlags_(STRETCH)) {
|
|
compute_polar_decomposition(hardyData_["rotation"].set_quantity(),
|
|
hardyData_["stretch"].set_quantity(),
|
|
hardyData_["displacement_gradient"].quantity());
|
|
}
|
|
// compute: rotation and/or stretch from deformation gradient
|
|
if (fieldFlags_(CAUCHY_BORN_ELASTIC_DEFORMATION_GRADIENT)) {
|
|
compute_elastic_deformation_gradient2(hardyData_["elastic_deformation_gradient"].set_quantity(),
|
|
hardyData_["stress"].quantity(),
|
|
hardyData_["displacement_gradient"].quantity());
|
|
}
|
|
|
|
// (3) computes
|
|
lammpsInterface_->computes_clearstep();
|
|
map <string,int>::const_iterator iter;
|
|
for (iter = computes_.begin(); iter != computes_.end(); iter++) {
|
|
string tag = iter->first;
|
|
COMPUTE_POINTER cmpt = lammpsInterface_->compute_pointer(tag);
|
|
int projection = iter->second;
|
|
int ncols = lammpsInterface_->compute_ncols_peratom(cmpt);;
|
|
DENS_MAT atomicData(nLocal_,ncols);
|
|
if (ncols == 1) {
|
|
double * atomData = lammpsInterface_->compute_vector_peratom(cmpt);
|
|
for (int i = 0; i < nLocal_; i++) {
|
|
int atomIdx = internalToAtom_(i);
|
|
atomicData(i,0) = atomData[atomIdx];
|
|
}
|
|
}
|
|
else {
|
|
double ** atomData = lammpsInterface_->compute_array_peratom(cmpt);
|
|
for (int i = 0; i < nLocal_; i++) {
|
|
int atomIdx = internalToAtom_(i);
|
|
for (int k = 0; k < ncols; k++) {
|
|
atomicData(i,k) = atomData[atomIdx][k];
|
|
}
|
|
}
|
|
}
|
|
// REFACTOR -- make dep manage
|
|
if (projection == NO_NORMALIZATION) {
|
|
project(atomicData,hardyData_[tag].set_quantity());
|
|
}
|
|
else if (projection == VOLUME_NORMALIZATION) {
|
|
project_volume_normalized(atomicData,hardyData_[tag].set_quantity());
|
|
}
|
|
else if (projection == NUMBER_NORMALIZATION) {
|
|
project_count_normalized(atomicData,hardyData_[tag].set_quantity());
|
|
}
|
|
else if (projection == MASS_NORMALIZATION) {
|
|
throw ATC_Error("unimplemented normalization");
|
|
}
|
|
else {
|
|
throw ATC_Error("unimplemented normalization");
|
|
}
|
|
#ifdef ESHELBY_VIRIAL
|
|
if (tag == "virial" && fieldFlags_(ESHELBY_STRESS)) {
|
|
if (atomToElementMapType_ == LAGRANGIAN) {
|
|
DENS_MAT tmp = hardyData_[tag].quantity();
|
|
DENS_MAT & myData(hardyData_[tag].set_quantity());
|
|
myData.reset(nNodes_,FieldSizes[STRESS]);
|
|
DENS_MAT F(3,3),FT(3,3),FTINV(3,3),CAUCHY(3,3),PK1(3,3);
|
|
const DENS_MAT& H(hardyData_["displacement_gradient"].quantity());
|
|
for (int k = 0; k < nNodes_; k++ ) {
|
|
vector_to_symm_matrix(k,tmp,CAUCHY);
|
|
vector_to_matrix(k,H,F);
|
|
F(0,0) += 1.0; F(1,1) += 1.0; F(2,2) += 1.0;
|
|
FT = F.transpose();
|
|
FTINV = inv(FT);
|
|
|
|
// volumes are already reference volumes.
|
|
PK1 = CAUCHY*FTINV;
|
|
matrix_to_vector(k,PK1,myData);
|
|
}
|
|
}
|
|
compute_eshelby_stress(hardyData_["eshelby_virial"].set_quantity(),
|
|
hardyData_["internal_energy"].quantity(),hardyData_[tag].quantity(),
|
|
hardyData_["displacement_gradient"].quantity());
|
|
}
|
|
#endif
|
|
}
|
|
|
|
}// end of compute_fields routine
|
|
|
|
//-------------------------------------------------------------------
|
|
void ATC_Transfer::time_filter_pre(double dt)
|
|
{
|
|
sampleCounter_++;
|
|
string name;
|
|
double delta_t = dt*sampleFrequency_;
|
|
for(int index=0; index < NUM_TOTAL_FIELDS; ++index) {
|
|
if (fieldFlags_(index)) {
|
|
name = field_to_string((FieldName) index);
|
|
timeFilters_(index)->apply_pre_step1(filteredData_[name].set_quantity(),
|
|
hardyData_[name].quantity(), delta_t);
|
|
}
|
|
}
|
|
map <string,int>::const_iterator iter;
|
|
int index = NUM_TOTAL_FIELDS;
|
|
for (iter = computes_.begin(); iter != computes_.end(); iter++) {
|
|
string tag = iter->first;
|
|
timeFilters_(index)->apply_pre_step1(filteredData_[tag].set_quantity(),
|
|
hardyData_[tag].quantity(), delta_t);
|
|
index++;
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
void ATC_Transfer::time_filter_post(double dt)
|
|
{
|
|
sampleCounter_++;
|
|
string name;
|
|
double delta_t = dt*sampleFrequency_;
|
|
for(int index=0; index < NUM_TOTAL_FIELDS; ++index) {
|
|
if (fieldFlags_(index)) {
|
|
name = field_to_string((FieldName) index);
|
|
timeFilters_(index)->apply_post_step2(filteredData_[name].set_quantity(),
|
|
hardyData_[name].quantity(), delta_t);
|
|
}
|
|
}
|
|
if (rateFlags_.has_member(true)) {
|
|
for(int index=0; index < NUM_TOTAL_FIELDS; ++index) {
|
|
if (rateFlags_(index)) {
|
|
string field= field_to_string((FieldName) index);
|
|
string rate_field = field + "_rate";
|
|
timeFilters_(index)->rate(hardyData_[rate_field].set_quantity(),
|
|
filteredData_[field].quantity(),
|
|
hardyData_[field].quantity(), delta_t);
|
|
}
|
|
}
|
|
}
|
|
for(int index=0; index < NUM_TOTAL_FIELDS; ++index) {
|
|
if (rateFlags_(index)) {
|
|
name = field_to_string((FieldName) index);
|
|
string rate_field = name + "_rate";
|
|
filteredData_[rate_field] = hardyData_[rate_field];
|
|
}
|
|
if (gradFlags_(index)) {
|
|
name = field_to_string((FieldName) index);
|
|
string grad_field = name + "_gradient";
|
|
filteredData_[grad_field] = hardyData_[grad_field];
|
|
}
|
|
}
|
|
|
|
// lists/accessing of fields ( & computes)
|
|
map <string,int>::const_iterator iter;
|
|
int index = NUM_TOTAL_FIELDS;
|
|
for (iter = computes_.begin(); iter != computes_.end(); iter++) {
|
|
string tag = iter->first;
|
|
timeFilters_(index)->apply_post_step2(filteredData_[tag].set_quantity(),
|
|
hardyData_[tag].quantity(), delta_t);
|
|
#ifdef ESHELBY_VIRIAL
|
|
if (tag == "virial" && fieldFlags_(ESHELBY_STRESS)) {
|
|
filteredData_["eshelby_virial"] = hardyData_["eshelby_virial"];
|
|
}
|
|
#endif
|
|
index++;
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
void ATC_Transfer::output()
|
|
{
|
|
feEngine_->departition_mesh();
|
|
|
|
for(int index=0; index < NUM_TOTAL_FIELDS; ++index) {
|
|
if (outputFlags_(index)) {
|
|
FieldName fName = (FieldName) index;
|
|
string name= field_to_string(fName);
|
|
fields_[fName] = filteredData_[name];
|
|
}
|
|
}
|
|
|
|
ATC_Method::output();
|
|
if (lammpsInterface_->comm_rank() == 0) {
|
|
// data
|
|
OUTPUT_LIST output_data;
|
|
#ifdef REFERENCE_PE_OUTPUT
|
|
output_data["reference_potential_energy"] = nodalRefPotentialEnergy_->quantity();
|
|
#endif
|
|
for(int index=0; index < NUM_TOTAL_FIELDS; ++index) {
|
|
if (outputFlags_(index)) {
|
|
string name= field_to_string((FieldName) index);
|
|
output_data[name] = & ( filteredData_[name].set_quantity());
|
|
}
|
|
if (rateFlags_(index)) {
|
|
string name= field_to_string((FieldName) index);
|
|
string rate_name = name + "_rate";
|
|
output_data[rate_name] = & ( filteredData_[rate_name].set_quantity());
|
|
}
|
|
if (gradFlags_(index)) {
|
|
string name= field_to_string((FieldName) index);
|
|
string grad_name = name + "_gradient";
|
|
output_data[grad_name] = & ( filteredData_[grad_name].set_quantity());
|
|
}
|
|
}
|
|
|
|
// lists/accessing of fields ( & computes)
|
|
map <string,int>::const_iterator iter;
|
|
for (iter = computes_.begin(); iter != computes_.end(); iter++) {
|
|
string tag = iter->first;
|
|
output_data[tag] = & ( filteredData_[tag].set_quantity());
|
|
#ifdef ESHELBY_VIRIAL
|
|
if (tag == "virial" && fieldFlags_(ESHELBY_STRESS)) {
|
|
output_data["eshelby_virial"] = & ( filteredData_["eshelby_virial"].set_quantity() );
|
|
}
|
|
#endif
|
|
}
|
|
|
|
DENS_MAT nodalInverseVolumes = CLON_VEC(accumulantInverseVolumes_->quantity());
|
|
output_data["NodalInverseVolumes"] = &nodalInverseVolumes;
|
|
|
|
// output
|
|
feEngine_->write_data(output_index(), & output_data);
|
|
}
|
|
feEngine_->partition_mesh();
|
|
}
|
|
|
|
/////// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
/////// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
//-------------------------------------------------------------------
|
|
// computes nodeData = N*atomData
|
|
void ATC_Transfer::project(const DENS_MAT & atomData,
|
|
DENS_MAT & nodeData)
|
|
{
|
|
if (! kernelOnTheFly_ ) {
|
|
nodeData.reset(nNodes_,atomData.nCols(),true);
|
|
DENS_MAT workNodeArray(nodeData.nRows(),nodeData.nCols());
|
|
if (nLocal_>0) workNodeArray = (accumulant_->quantity()).transMat(atomData);
|
|
int count = nodeData.nRows()*nodeData.nCols();
|
|
lammpsInterface_->allsum(workNodeArray.ptr(),nodeData.ptr(),count);
|
|
}
|
|
else {
|
|
compute_projection(atomData,nodeData);
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// computes nodeData = N*molData specially for molecules
|
|
void ATC_Transfer::project_molecule(const DENS_MAT & molData,
|
|
DENS_MAT & nodeData)
|
|
{
|
|
if (! kernelOnTheFly_ ) {
|
|
nodeData.reset(nNodes_,molData.nCols(),true);
|
|
DENS_MAT workNodeArray(nodeData.nRows(),nodeData.nCols());
|
|
if (nLocal_>0) workNodeArray = (accumulantMol_->quantity()).transMat(molData);
|
|
int count = nodeData.nRows()*nodeData.nCols();
|
|
lammpsInterface_->allsum(workNodeArray.ptr(),nodeData.ptr(),count);
|
|
}
|
|
else {
|
|
compute_projection(molData,nodeData);
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// computes nodeData = gradient of N*molData specially for molecules
|
|
void ATC_Transfer::project_molecule_gradient(const DENS_MAT & molData,
|
|
DENS_MAT & nodeData)
|
|
{
|
|
if (! kernelOnTheFly_ ) {
|
|
nodeData.reset(nNodes_,molData.nCols(),true);
|
|
DENS_MAT workNodeArray(nodeData.nRows(),nodeData.nCols());
|
|
if (nLocal_>0) workNodeArray = (accumulantMolGrad_->quantity()).transMat(molData);
|
|
int count = nodeData.nRows()*nodeData.nCols();
|
|
lammpsInterface_->allsum(workNodeArray.ptr(),nodeData.ptr(),count);
|
|
}
|
|
else {
|
|
compute_projection(molData,nodeData);
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// count normalized
|
|
void ATC_Transfer::project_count_normalized(const DENS_MAT & atomData,
|
|
DENS_MAT & nodeData)
|
|
{
|
|
DENS_MAT tmp;
|
|
project(atomData,tmp);
|
|
nodeData = (accumulantWeights_->quantity())*tmp;
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// volume normalized
|
|
void ATC_Transfer::project_volume_normalized(const DENS_MAT & atomData,
|
|
DENS_MAT & nodeData)
|
|
{
|
|
DENS_MAT tmp;
|
|
project(atomData,tmp);
|
|
nodeData = (accumulantInverseVolumes_->quantity())*tmp;
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// volume normalized molecule
|
|
void ATC_Transfer::project_volume_normalized_molecule(const DENS_MAT & molData,
|
|
DENS_MAT & nodeData)
|
|
{
|
|
DENS_MAT tmp;
|
|
project_molecule(molData,tmp);
|
|
nodeData = (accumulantInverseVolumes_->quantity())*tmp;
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// volume normalized molecule_gradient
|
|
void ATC_Transfer::project_volume_normalized_molecule_gradient(const DENS_MAT & molData,
|
|
DENS_MAT & nodeData)
|
|
{
|
|
DENS_MAT tmp;
|
|
project_molecule_gradient(molData,tmp);
|
|
nodeData = (accumulantInverseVolumes_->quantity())*tmp;
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------
|
|
void ATC_Transfer::gradient_compute(const DENS_MAT & inNodeData,
|
|
DENS_MAT & outNodeData)
|
|
{
|
|
int nrows = inNodeData.nRows();
|
|
int ncols = inNodeData.nCols();
|
|
outNodeData.reset(nrows,ncols*nsd_);
|
|
int index = 0;
|
|
for (int n = 0; n < ncols; n++) { //output v1,1 v1,2 v1,3 ...
|
|
for (int m = 0; m < nsd_; m++) {
|
|
CLON_VEC inData(inNodeData,CLONE_COL,n);
|
|
CLON_VEC outData(outNodeData,CLONE_COL,index);
|
|
outData = (*((gradientMatrix_->quantity())[m]))*inData;
|
|
++index;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//-------------------------------------------------------------------
|
|
void ATC_Transfer::compute_force_matrix()
|
|
{
|
|
atomicForceMatrix_ = pairVirial_->quantity();
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// computes "virial" part of heat flux
|
|
// This is correct ONLY for pair potentials.
|
|
void ATC_Transfer::compute_heat_matrix()
|
|
{
|
|
atomicHeatMatrix_ = pairHeatFlux_->quantity();
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// set xPointer_ to xref or xatom depending on Lagrangian/Eulerian analysis
|
|
void ATC_Transfer::set_xPointer()
|
|
{
|
|
xPointer_ = xref_;
|
|
if (atomToElementMapType_ == EULERIAN) {
|
|
xPointer_ = lammpsInterface_->xatom();
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// SOON TO BE OBSOLETE
|
|
// check consistency of fieldFlags_
|
|
void ATC_Transfer::check_field_dependencies()
|
|
{
|
|
fieldFlags_ = outputFlags_;
|
|
if (fieldFlags_(TRANSFORMED_STRESS)) {
|
|
fieldFlags_(STRESS) = true;
|
|
fieldFlags_(DISPLACEMENT) = true;
|
|
}
|
|
if (fieldFlags_(ESHELBY_STRESS)) {
|
|
fieldFlags_(STRESS) = true;
|
|
fieldFlags_(INTERNAL_ENERGY) = true;
|
|
fieldFlags_(DISPLACEMENT) = true;
|
|
}
|
|
if (fieldFlags_(CAUCHY_BORN_STRESS)
|
|
|| fieldFlags_(CAUCHY_BORN_ENERGY)
|
|
|| fieldFlags_(CAUCHY_BORN_ESHELBY_STRESS)
|
|
|| fieldFlags_(CAUCHY_BORN_ELASTIC_DEFORMATION_GRADIENT)) {
|
|
if (! (cauchyBornStress_) ) {
|
|
throw ATC_Error("can't compute cauchy-born stress w/o cauchy born model");
|
|
}
|
|
}
|
|
if (fieldFlags_(CAUCHY_BORN_ELASTIC_DEFORMATION_GRADIENT)) {
|
|
fieldFlags_(STRESS) = true;
|
|
}
|
|
if (fieldFlags_(CAUCHY_BORN_STRESS)
|
|
|| fieldFlags_(CAUCHY_BORN_ENERGY)) {
|
|
fieldFlags_(TEMPERATURE) = true;
|
|
fieldFlags_(DISPLACEMENT) = true;
|
|
}
|
|
if (fieldFlags_(CAUCHY_BORN_ESHELBY_STRESS)) {
|
|
fieldFlags_(TEMPERATURE) = true;
|
|
fieldFlags_(DISPLACEMENT) = true;
|
|
fieldFlags_(STRESS) = true;
|
|
}
|
|
if (fieldFlags_(VACANCY_CONCENTRATION)) {
|
|
fieldFlags_(DISPLACEMENT) = true;
|
|
fieldFlags_(NUMBER_DENSITY) = true;
|
|
}
|
|
if (fieldFlags_(INTERNAL_ENERGY)) {
|
|
fieldFlags_(POTENTIAL_ENERGY) = true;
|
|
fieldFlags_(THERMAL_ENERGY) = true;
|
|
}
|
|
if (fieldFlags_(ENERGY)) {
|
|
fieldFlags_(POTENTIAL_ENERGY) = true;
|
|
fieldFlags_(KINETIC_ENERGY) = true;
|
|
}
|
|
if (fieldFlags_(TEMPERATURE) || fieldFlags_(HEAT_FLUX) ||
|
|
fieldFlags_(KINETIC_ENERGY) || fieldFlags_(THERMAL_ENERGY) ||
|
|
fieldFlags_(ENERGY) || fieldFlags_(INTERNAL_ENERGY) ||
|
|
fieldFlags_(KINETIC_ENERGY) || (fieldFlags_(STRESS) &&
|
|
atomToElementMapType_ == EULERIAN) ) {
|
|
fieldFlags_(VELOCITY) = true;
|
|
fieldFlags_(MASS_DENSITY) = true;
|
|
}
|
|
|
|
if (fieldFlags_(VELOCITY)) {
|
|
fieldFlags_(MASS_DENSITY) = true;
|
|
fieldFlags_(MOMENTUM) = true;
|
|
}
|
|
if (fieldFlags_(DISPLACEMENT)) {
|
|
fieldFlags_(MASS_DENSITY) = true;
|
|
}
|
|
if (fieldFlags_(TEMPERATURE) ) {
|
|
fieldFlags_(NUMBER_DENSITY) = true;
|
|
}
|
|
|
|
if (fieldFlags_(ROTATION) ||
|
|
fieldFlags_(STRETCH)) {
|
|
fieldFlags_(DISPLACEMENT) = true;
|
|
}
|
|
if (fieldFlags_(ESHELBY_STRESS)
|
|
|| fieldFlags_(CAUCHY_BORN_STRESS)
|
|
|| fieldFlags_(CAUCHY_BORN_ENERGY)
|
|
|| fieldFlags_(CAUCHY_BORN_ESHELBY_STRESS)
|
|
|| fieldFlags_(CAUCHY_BORN_ELASTIC_DEFORMATION_GRADIENT)
|
|
|| fieldFlags_(VACANCY_CONCENTRATION)
|
|
|| fieldFlags_(ROTATION)
|
|
|| fieldFlags_(STRETCH) ) {
|
|
gradFlags_(DISPLACEMENT) = true;
|
|
}
|
|
|
|
// check whether single_enable==0 for stress/heat flux calculation
|
|
if (fieldFlags_(STRESS) || fieldFlags_(HEAT_FLUX)) {
|
|
if (lammpsInterface_->single_enable()==0) {
|
|
throw ATC_Error("Calculation of stress field not possible with selected pair type.");
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
//============== THIN WRAPPERS ====================================
|
|
// OBSOLETE
|
|
// HARDY COMPUTES
|
|
// ***************UNCONVERTED**************************
|
|
|
|
//-------------------------------------------------------------------
|
|
// MOLECULE
|
|
//-------------------------------------------------------------------
|
|
void ATC_Transfer::compute_dipole_moment(DENS_MAT & dipole_moment)
|
|
{
|
|
const DENS_MAT & molecularVector(dipoleMoment_->quantity());
|
|
project_volume_normalized_molecule(molecularVector,dipole_moment); // KKM add
|
|
//
|
|
}
|
|
//-------------------------------------------------------------------
|
|
void ATC_Transfer::compute_quadrupole_moment(DENS_MAT & quadrupole_moment)
|
|
{
|
|
const DENS_MAT & molecularVector(quadrupoleMoment_->quantity());
|
|
project_volume_normalized_molecule_gradient(molecularVector,quadrupole_moment); // KKM add
|
|
//
|
|
}
|
|
//-------------------------------------------------------------------
|
|
void ATC_Transfer::compute_stress(DENS_MAT & stress)
|
|
{
|
|
// table of bond functions already calculated in initialize function
|
|
// get conversion factor for nktV to p units
|
|
double nktv2p = lammpsInterface_->nktv2p();
|
|
|
|
// calculate kinetic energy tensor part of stress for Eulerian analysis
|
|
if (atomToElementMapType_ == EULERIAN && nLocal_>0) {
|
|
compute_kinetic_stress(stress);
|
|
}
|
|
else {
|
|
// zero stress table for Lagrangian analysis or if nLocal_ = 0
|
|
stress.zero();
|
|
}
|
|
// add-in potential part of stress tensor
|
|
int nrows = stress.nRows();
|
|
int ncols = stress.nCols();
|
|
DENS_MAT local_potential_hardy_stress(nrows,ncols);
|
|
if (nLocal_>0) {
|
|
if (bondOnTheFly_) {
|
|
compute_potential_stress(local_potential_hardy_stress);
|
|
}
|
|
else {
|
|
// compute table of force & position dyad
|
|
compute_force_matrix();
|
|
// calculate force part of stress tensor
|
|
local_potential_hardy_stress = atomicBondMatrix_*atomicForceMatrix_;
|
|
local_potential_hardy_stress *= 0.5;
|
|
}
|
|
}
|
|
// global summation of potential part of stress tensor
|
|
DENS_MAT potential_hardy_stress(nrows,ncols);
|
|
int count = nrows*ncols;
|
|
lammpsInterface_->allsum(local_potential_hardy_stress.ptr(),
|
|
potential_hardy_stress.ptr(), count);
|
|
stress += potential_hardy_stress;
|
|
stress = nktv2p*stress;
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// kinetic energy portion of stress
|
|
void ATC_Transfer::compute_kinetic_stress(DENS_MAT& stress)
|
|
{
|
|
const DENS_MAT& density = hardyData_["mass_density"].quantity();
|
|
const DENS_MAT& velocity = hardyData_["velocity"].quantity();
|
|
|
|
int * type = lammpsInterface_->atom_type();
|
|
double * mass = lammpsInterface_->atom_mass();
|
|
double * rmass = lammpsInterface_->atom_rmass();
|
|
double ** vatom = lammpsInterface_->vatom();
|
|
double mvv2e = lammpsInterface_->mvv2e(); // [MV^2]-->[Energy]
|
|
|
|
atomicTensor_.reset(nLocal_,6);
|
|
for (int i = 0; i < nLocal_; i++) {
|
|
int atomIdx = internalToAtom_(i);
|
|
double ma = mass ? mass[type[atomIdx]]: rmass[atomIdx];
|
|
ma *= mvv2e; // convert mass to appropriate units
|
|
double* v = vatom[atomIdx];
|
|
atomicTensor_(i,0) -= ma*v[0]*v[0];
|
|
atomicTensor_(i,1) -= ma*v[1]*v[1];
|
|
atomicTensor_(i,2) -= ma*v[2]*v[2];
|
|
atomicTensor_(i,3) -= ma*v[0]*v[1];
|
|
atomicTensor_(i,4) -= ma*v[0]*v[2];
|
|
atomicTensor_(i,5) -= ma*v[1]*v[2];
|
|
}
|
|
project_volume_normalized(atomicTensor_, stress);
|
|
|
|
for (int i = 0; i < nNodes_; i++) {
|
|
double rho_i = mvv2e*density(i,0);
|
|
stress(i,0) += rho_i*velocity(i,0)*velocity(i,0);
|
|
stress(i,1) += rho_i*velocity(i,1)*velocity(i,1);
|
|
stress(i,2) += rho_i*velocity(i,2)*velocity(i,2);
|
|
stress(i,3) += rho_i*velocity(i,0)*velocity(i,1);
|
|
stress(i,4) += rho_i*velocity(i,0)*velocity(i,2);
|
|
stress(i,5) += rho_i*velocity(i,1)*velocity(i,2);
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
void ATC_Transfer::compute_heatflux(DENS_MAT & flux)
|
|
{
|
|
// calculate kinetic part of heat flux
|
|
if (atomToElementMapType_ == EULERIAN && nLocal_>0) {
|
|
compute_kinetic_heatflux(flux);
|
|
}
|
|
else {
|
|
flux.zero(); // zero stress table for Lagrangian analysis
|
|
}
|
|
// add potential part of heat flux vector
|
|
int nrows = flux.nRows();
|
|
int ncols = flux.nCols();
|
|
DENS_MAT local_hardy_heat(nrows,ncols);
|
|
if (nLocal_>0) {
|
|
if (bondOnTheFly_) {
|
|
compute_potential_heatflux(local_hardy_heat);
|
|
}
|
|
else {
|
|
// calculate force/potential-derivative part of heat flux
|
|
compute_heat_matrix();
|
|
local_hardy_heat = atomicBondMatrix_*atomicHeatMatrix_;
|
|
}
|
|
}
|
|
// global summation of potential part of heat flux vector
|
|
DENS_MAT hardy_heat(nrows,ncols);
|
|
int count = nrows*ncols;
|
|
lammpsInterface_->allsum(local_hardy_heat.ptr(),
|
|
hardy_heat.ptr(), count);
|
|
flux += hardy_heat;
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// compute kinetic part of heat flux
|
|
void ATC_Transfer::compute_kinetic_heatflux(DENS_MAT& flux)
|
|
{
|
|
const DENS_MAT& velocity = hardyData_["velocity"].quantity();
|
|
const DENS_MAT& energy = hardyData_["mass_density"].quantity();
|
|
const DENS_MAT& stress = hardyData_["stress"].quantity();
|
|
|
|
int * type = lammpsInterface_->atom_type();
|
|
double * mass = lammpsInterface_->atom_mass();
|
|
double * rmass = lammpsInterface_->atom_rmass();
|
|
double ** vatom = lammpsInterface_->vatom();
|
|
double mvv2e = lammpsInterface_->mvv2e();
|
|
double * atomPE = lammpsInterface_->compute_pe_peratom();
|
|
double atomKE, atomEnergy;
|
|
atomicVector_.reset(nLocal_,3);
|
|
for (int i = 0; i < nLocal_; i++) {
|
|
int atomIdx = internalToAtom_(i);
|
|
double ma = mass ? mass[type[atomIdx]]: rmass[atomIdx];
|
|
ma *= mvv2e; // convert mass to appropriate units
|
|
double* v = vatom[atomIdx];
|
|
atomKE = 0.0;
|
|
for (int k = 0; k < nsd_; k++) { atomKE += v[k]*v[k]; }
|
|
atomKE *= 0.5*ma;
|
|
atomEnergy = atomKE + atomPE[atomIdx];
|
|
for (int j = 0; j < nsd_; j++) {
|
|
atomicVector_(i,j) += atomEnergy*v[j];
|
|
}
|
|
}
|
|
project_volume_normalized(atomicVector_,flux);
|
|
|
|
// - e^0_I v_I + \sigma^T_I v_I
|
|
for (int i = 0; i < nNodes_; i++) {
|
|
double e_i = energy(i,0);
|
|
flux(i,0) += (e_i + stress(i,0))*velocity(i,0)
|
|
+ stress(i,3)*velocity(i,1)+ stress(i,4)*velocity(i,2);
|
|
flux(i,1) += (e_i + stress(i,1))*velocity(i,1)
|
|
+ stress(i,3)*velocity(i,0)+ stress(i,5)*velocity(i,2);
|
|
flux(i,2) += (e_i + stress(i,2))*velocity(i,2)
|
|
+ stress(i,4)*velocity(i,0)+ stress(i,5)*velocity(i,1);
|
|
}
|
|
}
|
|
//--------------------------------------------------------------------
|
|
void ATC_Transfer::compute_electric_potential(DENS_MAT & phi)
|
|
{
|
|
// Poisson solve with insulating bcs
|
|
const DENS_MAT & rho = (restrictedCharge_->quantity());
|
|
SPAR_MAT K;
|
|
feEngine_->stiffness_matrix(K);
|
|
double permittivity = lammpsInterface_->dielectric();
|
|
permittivity *= LammpsInterface::instance()->epsilon0();
|
|
K *= permittivity;
|
|
BC_SET bcs;
|
|
bcs.insert(pair<int,int>(0,0));
|
|
LinearSolver solver(K,bcs);
|
|
CLON_VEC x = column(phi,0);
|
|
CLON_VEC b = column(rho,0);
|
|
solver.solve(x,b);
|
|
//x.print("x:phi");
|
|
//b.print("b:rho");
|
|
//LinearSolver solver(K,AUTO_SOLVE,true);
|
|
}
|
|
//--------------------------------------------------------------------
|
|
void ATC_Transfer::compute_vacancy_concentration(DENS_MAT & Cv,
|
|
const DENS_MAT & H, const DENS_MAT & /* rhoN */)
|
|
{
|
|
int * type = lammpsInterface_->atom_type();
|
|
DENS_MAT new_rho(nNodes_,1);
|
|
DENS_MAT atomCnt(nLocal_,1);
|
|
double atomic_weight_sum = 0.0;
|
|
double site_weight_sum = 0.0;
|
|
int number_atoms = 0;
|
|
const DIAG_MAT & myAtomicWeights(atomVolume_->quantity());
|
|
|
|
for (int i = 0; i < nLocal_; i++) {
|
|
int atomIdx = internalToAtom_(i);
|
|
if (type[atomIdx] != 13) {
|
|
atomCnt(i,0) = myAtomicWeights(i,i);
|
|
atomic_weight_sum += myAtomicWeights(i,i);
|
|
number_atoms++;
|
|
}
|
|
site_weight_sum += myAtomicWeights(i,i);
|
|
}
|
|
project_volume_normalized(atomCnt, new_rho);
|
|
DENS_MAT F(3,3);
|
|
for (int i = 0; i < nNodes_; i++) {
|
|
if (atomToElementMapType_ == EULERIAN) {
|
|
// for Eulerian analysis: F = (1-H)^{-1}
|
|
DENS_MAT G(3,3);
|
|
vector_to_matrix(i,H,G);
|
|
G *= -1.;
|
|
G(0,0) += 1.0; G(1,1) += 1.0; G(2,2) += 1.0;
|
|
F = inv(G);
|
|
}
|
|
else if (atomToElementMapType_ == LAGRANGIAN) {
|
|
// for Lagrangian analysis: F = (1+H)
|
|
vector_to_matrix(i,H,F);
|
|
F(0,0) += 1.0; F(1,1) += 1.0; F(2,2) += 1.0;
|
|
}
|
|
double J = det(F);
|
|
double volume_per_atom = lammpsInterface_->volume_per_atom();
|
|
J *= volume_per_atom;
|
|
Cv(i,0) = 1.0 - J*new_rho(i,0);
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void ATC_Transfer::compute_eshelby_stress(DENS_MAT & M,
|
|
const DENS_MAT & E, const DENS_MAT & S, const DENS_MAT & H)
|
|
{
|
|
// eshelby stress:M, energy:E, stress:S, displacement gradient: H
|
|
// eshelby stress = W I - F^T.P = W I - C.S [energy]
|
|
// symmetric if isotropic S = a_0 I + a_1 C + a_2 C^2
|
|
M.reset(nNodes_,FieldSizes[ESHELBY_STRESS]);
|
|
double nktv2p = lammpsInterface_->nktv2p();
|
|
DENS_MAT P(3,3),F(3,3),FT(3,3),FTP(3,3),ESH(3,3);
|
|
for (int i = 0; i < nNodes_; i++) {
|
|
double W = E(i,0);
|
|
ESH.identity();
|
|
ESH *= W;
|
|
|
|
// copy to local
|
|
if (atomToElementMapType_ == LAGRANGIAN) {
|
|
// Stress notation convention:: 0:11 1:12 2:13 3:21 4:22 5:23 6:31 7:32 8:33
|
|
vector_to_matrix(i,S,P);
|
|
|
|
|
|
vector_to_matrix(i,H,F);
|
|
#ifndef H_BASED
|
|
F(0,0) += 1.0; F(1,1) += 1.0; F(2,2) += 1.0;
|
|
#endif
|
|
FT = F.transpose();
|
|
}
|
|
else if (atomToElementMapType_ == EULERIAN) {
|
|
vector_to_symm_matrix(i,S,P);
|
|
vector_to_matrix(i,H,F);
|
|
FT = F.transpose();
|
|
}
|
|
FTP = (1.0/nktv2p)*FT*P;
|
|
ESH -= FTP;
|
|
if (atomToElementMapType_ == EULERIAN) {
|
|
// For Eulerian analysis, M = F^T*(w-H^T.CauchyStress)
|
|
DENS_MAT Q(3,3);
|
|
Q.identity();
|
|
// Q stores (1-H)
|
|
Q -= FT.transpose();
|
|
DENS_MAT F(3,3);
|
|
F = inv(Q);
|
|
FT = F.transpose();
|
|
ESH = FT*ESH;
|
|
}
|
|
// copy to global
|
|
matrix_to_vector(i,ESH,M);
|
|
}
|
|
}
|
|
//---------------------------------------------------------------------------
|
|
// Computes the Cauchy Born stress tensor, T given displacement gradient, H
|
|
// and optional temperature argument (passed by pointer), TEMP
|
|
//---------------------------------------------------------------------------
|
|
void ATC_Transfer::cauchy_born_stress(const DENS_MAT &H, DENS_MAT &T, const DENS_MAT *temp)
|
|
{
|
|
FIELD_MATS uField; // uField should contain temperature.
|
|
DENS_MAT_VEC tField;
|
|
GRAD_FIELD_MATS hField;
|
|
DENS_MAT_VEC &h = hField[DISPLACEMENT];
|
|
h.assign(nsd_, DENS_MAT(nNodes_,nsd_));
|
|
tField.assign(nsd_, DENS_MAT(nNodes_,nsd_));
|
|
// each row is the CB stress at a node stored in voigt form
|
|
T.reset(nNodes_,FieldSizes[CAUCHY_BORN_STRESS]);
|
|
const double nktv2p = lammpsInterface_->nktv2p();
|
|
const double fact = -lammpsInterface_->mvv2e()*nktv2p;
|
|
|
|
// reshape H (#nodes,9) into h [3](#nodes,3) displacement gradient
|
|
vector_to_dens_mat_vec(H,h);
|
|
|
|
// if temperature is provided, then set it
|
|
if (temp) uField[TEMPERATURE] = *temp;
|
|
|
|
// Computes the stress at each node.
|
|
cauchyBornStress_->stress(uField, hField, tField);
|
|
|
|
// reshapes the stress, T to a (#node,6) DenseMatrix.
|
|
DENS_MAT S(nNodes_,6);
|
|
symm_dens_mat_vec_to_vector(tField,S);
|
|
S *= fact;
|
|
|
|
// tField/S holds the 2nd P-K stress tensor. Transform to
|
|
// Cauchy for EULERIAN analysis, transform to 1st P-K
|
|
// for LAGRANGIAN analysis.
|
|
DENS_MAT PK2(3,3),G(3,3),F(3,3),FT(3,3),STRESS(3,3);
|
|
for (int i = 0; i < nNodes_; i++) {
|
|
|
|
vector_to_symm_matrix(i,S,PK2);
|
|
|
|
if (atomToElementMapType_ == EULERIAN) {
|
|
|
|
// for Eulerian analysis: F = (1-H)^{-1}
|
|
vector_to_matrix(i,H,G);
|
|
G *= -1.;
|
|
|
|
G(0,0) += 1.0; G(1,1) += 1.0; G(2,2) += 1.0;
|
|
F = inv(G);
|
|
FT = transpose(F);
|
|
double J = det(F);
|
|
STRESS = F*PK2*FT;
|
|
STRESS *= 1/J;
|
|
symm_matrix_to_vector(i,STRESS,T);
|
|
}
|
|
else{
|
|
// for Lagrangian analysis: F = 1 + H
|
|
vector_to_matrix(i,H,F);
|
|
|
|
F(0,0) += 1.0; F(1,1) += 1.0; F(2,2) += 1.0;
|
|
STRESS = F*PK2;
|
|
matrix_to_vector(i,STRESS,T);
|
|
}
|
|
|
|
}
|
|
}
|
|
//---------------------------------------------------------------------------
|
|
// Computes the Cauchy Born energy density, E given displacement gradient, H
|
|
// and optional temperature argument (passed by pointer), TEMP
|
|
//---------------------------------------------------------------------------
|
|
void ATC_Transfer::cauchy_born_energy(const DENS_MAT &H, DENS_MAT &E, const DENS_MAT *temp)
|
|
{
|
|
FIELD_MATS uField; // uField should contain temperature.
|
|
GRAD_FIELD_MATS hField;
|
|
DENS_MAT_VEC &h = hField[DISPLACEMENT];
|
|
h.assign(nsd_, DENS_MAT(nNodes_,nsd_));
|
|
|
|
// reshape H (#nodes,9) into h [3](#nodes,3) displacement gradient
|
|
vector_to_dens_mat_vec(H,h);
|
|
|
|
// if temperature is provided, then set it
|
|
if (temp) uField[TEMPERATURE] = *temp;
|
|
|
|
// Computes the free/potential energy at each node.
|
|
cauchyBornStress_->elastic_energy(uField, hField, E);
|
|
|
|
// convert back to energy units for ( ATC coupling uses MLT units)
|
|
double mvv2e = lammpsInterface_->mvv2e(); // [MV^2]-->[Energy]
|
|
E *= mvv2e;
|
|
|
|
// for Eulerian analysis, convert energy density to per-unit deformed volume
|
|
if (atomToElementMapType_ == EULERIAN) {
|
|
DENS_MAT G(3,3),F(3,3);
|
|
for (int i = 0; i < nNodes_; i++) {
|
|
// for Eulerian analysis: F = (1-H)^{-1}
|
|
vector_to_matrix(i,H,G);
|
|
G *= -1.;
|
|
|
|
G(0,0) += 1.0; G(1,1) += 1.0; G(2,2) += 1.0;
|
|
F = inv(G);
|
|
double J = det(F);
|
|
E(i,0) *= 1/J;
|
|
}
|
|
}
|
|
// subtract zero point energy
|
|
if (nodalRefPotentialEnergy_)
|
|
E -= nodalRefPotentialEnergy_->quantity();
|
|
}
|
|
//---------------------------------------------------------------------------
|
|
// Computes the M/LH entropic energy density
|
|
//---------------------------------------------------------------------------
|
|
void ATC_Transfer::cauchy_born_entropic_energy(const DENS_MAT &H, DENS_MAT &E, const DENS_MAT &T)
|
|
{
|
|
FIELD_MATS uField; // uField should contain temperature.
|
|
uField[TEMPERATURE] = T;
|
|
GRAD_FIELD_MATS hField;
|
|
DENS_MAT_VEC &h = hField[DISPLACEMENT];
|
|
h.assign(nsd_, DENS_MAT(nNodes_,nsd_));
|
|
|
|
// reshape H (#nodes,9) into h [3](#nodes,3) displacement gradient
|
|
vector_to_dens_mat_vec(H,h);
|
|
|
|
// Computes the free/potential energy at each node.
|
|
cauchyBornStress_->entropic_energy(uField, hField, E);
|
|
|
|
// convert back to energy units for ( ATC coupling uses MLT units)
|
|
double mvv2e = lammpsInterface_->mvv2e(); // [MV^2]-->[Energy]
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E *= mvv2e;
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// for Eulerian analysis, convert energy density to per-unit deformed volume
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if (atomToElementMapType_ == EULERIAN) {
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DENS_MAT G(3,3),F(3,3);
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for (int i = 0; i < nNodes_; i++) {
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// for Eulerian analysis: F = (1-H)^{-1}
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vector_to_matrix(i,H,G);
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G *= -1.;
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G(0,0) += 1.0; G(1,1) += 1.0; G(2,2) += 1.0;
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F = inv(G);
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double J = det(F);
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E(i,0) *= 1/J;
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}
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}
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}
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//--------------------------------------------------------------------
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void ATC_Transfer::compute_transformed_stress(DENS_MAT & stress,
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const DENS_MAT & T, const DENS_MAT & H)
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{
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stress.reset(nNodes_,FieldSizes[TRANSFORMED_STRESS]);
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DENS_MAT S(3,3),FT(3,3),P(3,3);
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for (int i = 0; i < nNodes_; i++) {
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if (atomToElementMapType_ == EULERIAN) {
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vector_to_symm_matrix(i,T,P);
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// for Eulerian analysis: F^T = (1-H)^{-T}
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DENS_MAT G(3,3);
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vector_to_matrix(i,H,G);
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G *= -1.;
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G(0,0) += 1.0; G(1,1) += 1.0; G(2,2) += 1.0;
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FT = inv(G.transpose());
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}
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else{
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vector_to_matrix(i,T,P);
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// for Lagrangian analysis: F^T = (1+H)^T
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DENS_MAT F(3,3);
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vector_to_matrix(i,H,F);
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|
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F(0,0) += 1.0; F(1,1) += 1.0; F(2,2) += 1.0;
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FT = F.transpose();
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}
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//
|
|
double J = det(FT);
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FT *= 1/J;
|
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if (atomToElementMapType_ == EULERIAN) {
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|
FT = inv(FT);
|
|
}
|
|
S = P*FT;
|
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matrix_to_vector(i,S,stress);
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}
|
|
}
|
|
//--------------------------------------------------------------------
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|
void ATC_Transfer::compute_polar_decomposition(DENS_MAT & rotation,
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DENS_MAT & stretch, const DENS_MAT & H)
|
|
{
|
|
DENS_MAT F(3,3),R(3,3),U(3,3);
|
|
for (int i = 0; i < nNodes_; i++) {
|
|
vector_to_matrix(i,H,F);
|
|
F(0,0) += 1.0; F(1,1) += 1.0; F(2,2) += 1.0;
|
|
if (atomToElementMapType_ == EULERIAN) {
|
|
polar_decomposition(F,R,U,false); } // F = V R
|
|
else {
|
|
polar_decomposition(F,R,U); } // F = R U
|
|
// copy to local
|
|
if ( fieldFlags_(ROTATION) ) {
|
|
|
|
matrix_to_vector(i,R,rotation);
|
|
}
|
|
if ( fieldFlags_(STRETCH) ) {
|
|
matrix_to_vector(i,U,stretch);
|
|
}
|
|
}
|
|
}
|
|
//--------------------------------------------------------------------
|
|
void ATC_Transfer::compute_elastic_deformation_gradient(DENS_MAT & Fe,
|
|
const DENS_MAT & P, const DENS_MAT & H)
|
|
|
|
{
|
|
// calculate Fe for every node
|
|
const double nktv2p = lammpsInterface_->nktv2p();
|
|
const double fact = 1.0/ ( lammpsInterface_->mvv2e()*nktv2p );
|
|
for (int i = 0; i < nNodes_; i++) {
|
|
DENS_VEC Pv = global_vector_to_vector(i,P);
|
|
Pv *= fact;
|
|
CBElasticTangentOperator tangent(cauchyBornStress_, Pv);
|
|
NonLinearSolver solver(&tangent);
|
|
DENS_VEC Fv = global_vector_to_vector(i,H); // pass in initial guess
|
|
add_identity_voigt_unsymmetric(Fv);
|
|
solver.solve(Fv);
|
|
vector_to_global_vector(i,Fv,Fe);
|
|
}
|
|
}
|
|
//--------------------------------------------------------------------
|
|
void ATC_Transfer::compute_elastic_deformation_gradient2(DENS_MAT & Fe,
|
|
const DENS_MAT & P, const DENS_MAT & H)
|
|
{
|
|
// calculate Fe for every node
|
|
const double nktv2p = lammpsInterface_->nktv2p();
|
|
const double fact = 1.0/ ( lammpsInterface_->mvv2e()*nktv2p );
|
|
DENS_MAT F(3,3),R(3,3),U(3,3),PP(3,3),S(3,3);
|
|
for (int i = 0; i < nNodes_; i++) {
|
|
// get F = RU
|
|
vector_to_matrix(i,H,F);
|
|
F(0,0) += 1.0; F(1,1) += 1.0; F(2,2) += 1.0;
|
|
if (atomToElementMapType_ == EULERIAN) {
|
|
polar_decomposition(F,R,U,false); } // F = V R
|
|
else {
|
|
polar_decomposition(F,R,U); } // F = R U
|
|
// get S
|
|
vector_to_matrix(i,P,PP);
|
|
//S = PP*transpose(F);
|
|
S = inv(F)*PP;
|
|
|
|
S += S.transpose(); S *= 0.5; // symmetrize
|
|
DENS_VEC Sv = to_voigt(S);
|
|
Sv *= fact;
|
|
// solve min_U || S - S_CB(U) ||
|
|
CB2ndElasticTangentOperator tangent(cauchyBornStress_, Sv);
|
|
NonLinearSolver solver(&tangent);
|
|
//DENS_VEC Uv = to_voigt_unsymmetric(U); // pass in initial guess
|
|
DENS_VEC Uv = to_voigt(U); // pass in initial guess
|
|
//DENS_VEC Uv(6); Uv(0)=1;Uv(1)=1;Uv(2)=1;Uv(3)=0;Uv(4)=0;Uv(5)=0;
|
|
solver.solve(Uv);
|
|
DENS_MAT Ue = from_voigt(Uv);
|
|
DENS_MAT FFe = R*Ue;
|
|
matrix_to_vector(i,FFe,Fe);
|
|
}
|
|
}
|
|
// =========== Analytical solutions ==========================
|
|
} // end namespace ATC
|
|
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