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// GetDP - Copyright (C) 1997-2018 P. Dular and C. Geuzaine, University of Liege
//
// See the LICENSE.txt file for license information. Please report all
// issues on https://gitlab.onelab.info/getdp/getdp/issues
//
// Contributor(s):
// Nicolas Marsic
//
#include "DofData.h"
#include "Message.h"
#include "Cal_SmallFemTermOfFemEquation.h"
#if defined(HAVE_SMALLFEM)
#include "SmallFem.h"
#include "Mesh.h"
#include "FunctionSpace0Form.h"
#include "System.h"
#include "SystemHelper.h"
#include "FormulationPoisson.h"
extern struct CurrentData Current;
// SmallFEM: helping functions //
double fDirichlet0(fullVector<double>& xyz){
return -1;
}
double fDirichlet1(fullVector<double>& xyz){
return +1;
}
double fSource(fullVector<double>& xyz){
return 0;
}
void fMaterial(fullVector<double>& xyz, fullMatrix<double>& tensor){
tensor.scale(0);
if(xyz(0) > 0){
tensor(0, 0) = 1;
tensor(1, 1) = 1;
tensor(2, 2) = 1;
}
if(xyz(0) <= 0){
tensor(0, 0) = 1;
tensor(1, 1) = 1;
tensor(2, 2) = 1;
}
}
int getGoeIdFromGetDPId(GroupOfElement& goe, int getdpId){
std::vector<const MElement*> element = goe.getAll();
for(size_t i = 0; i < element.size(); i++)
if(element[i]->getNum() == getdpId)
return i;
throw Exception("Element not found!");
}
struct Dof getGetDPDofFromSmallFEM(const sf::Dof& dofSF,
const DofManager<double>& dofM){
size_t globalId = dofM.getGlobalId(dofSF);
struct Dof dofDP;
dofDP.NumType = 1;
dofDP.Entity = dofSF.getEntity() + 1;
dofDP.Harmonic = 0;
if(globalId == DofManager<double>::isFixedId()){
dofDP.Type = 2;
dofDP.Case.FixedAssociate.TimeFunctionIndex = 0;
dofDP.Val.s = dofM.getValue(dofSF);
}
else{
dofDP.Type = 1;
dofDP.Case.Unknown.NumDof = globalId + 1;
dofDP.Case.Unknown.NonLocal = 0;
}
return dofDP;
}
void printDof(struct Dof* dof){
std::cout << dof->NumType << ", "
<< dof->Entity << ", "
<< dof->Harmonic << ", "
<< dof->Type << "; ";
switch(dof->Type){
case 1: std::cout << dof->Case.Unknown.NumDof << ", "
<< dof->Case.Unknown.NonLocal; break;
case 2: std::cout << dof->Case.FixedAssociate.NumDof << ", "
<< dof->Case.FixedAssociate.TimeFunctionIndex << ", "
<< dof->Val.s; break;
default: throw(Exception("Unknown GetDP Dof Type: %d", dof->Type));
}
}
void Cal_SmallFemTermOfFemEquation(struct Element* Element,
struct EquationTerm* EquationTerm_P,
struct QuantityStorage* QuantityStorage_P0){
extern int Flag_RHS;
struct FemLocalTermActive* FI = EquationTerm_P->Case.LocalTerm.Active;
Current.flagAssDiag = 0; /*+++prov*/
/* treatment of MHBilinear-term in separate routine */
if(FI->MHBilinear){
/* if only the RHS of the system is to be calculated
(in case of adaptive relaxation of the Newton-Raphson scheme)
the (expensive and redundant) calculation of this term can be skipped */
if(!Flag_RHS)
Message::Error("MHBilinear not in SmallFEM");
return;
}
// Init SmallFEM (only once) //
static int once = 0;
static Mesh* msh;
static GroupOfElement* volume;
static GroupOfElement* boundary0;
static GroupOfElement* boundary1;
static sf::FunctionSpace0Form* fs;
static FormulationPoisson* poisson;
static System<double>* sysPoisson;
static const DofManager<double>* dofM;
static const std::vector<std::vector<sf::Dof> >* allDofField;
static const std::vector<std::vector<sf::Dof> >* allDofTest;
if(!once){
// Say it loudly and proudly! //
Message::Direct("U s i n g S m a l l F E M . . .");
// Create a SmallFEM Formulation for Poisson //
// Get Domains //
msh = new Mesh("mesh.msh");
volume = new GroupOfElement(msh->getFromPhysical(7));
boundary0 = new GroupOfElement(msh->getFromPhysical(6));
boundary1 = new GroupOfElement(msh->getFromPhysical(5));
// Full Domain //
std::vector<const GroupOfElement*> domain(3);
domain[0] = volume;
domain[1] = boundary0;
domain[2] = boundary1;
// Get Order //
int order = 1;
// Function Space //
fs = new sf::FunctionSpace0Form(domain, order);
// Compute //
poisson = new FormulationPoisson(*volume, *fs, fSource, fMaterial);
sysPoisson = new System<double>;
sysPoisson->addFormulation(*poisson);
SystemHelper<double>::dirichlet(*sysPoisson, *fs, *boundary0, fDirichlet0);
SystemHelper<double>::dirichlet(*sysPoisson, *fs, *boundary1, fDirichlet1);
sysPoisson->assemble();
dofM = &sysPoisson->getDofManager();
allDofField = &(poisson->field().getKeys(poisson->domain()));
allDofTest = &( poisson->test().getKeys(poisson->domain()));
once = 1;
}
// Get GetDP Number of Dofs
//struct QuantityStorage* QuantityStorageEqu_P = FI->QuantityStorageEqu_P;
//struct QuantityStorage* QuantityStorageDof_P = FI->QuantityStorageDof_P;
//int Nbr_Dof =
// FI->SymmetricalMatrix ? QuantityStorageEqu_P->NbrElementaryBasisFunction :
// QuantityStorageDof_P->NbrElementaryBasisFunction;
//int Nbr_Equ =
// QuantityStorageEqu_P->NbrElementaryBasisFunction;
// SF Dofs
int elementIdSF = getGoeIdFromGetDPId(*volume, Element->Num);
std::vector<sf::Dof> dofField = (*allDofField)[elementIdSF];
std::vector<sf::Dof> dofTest = (*allDofTest)[elementIdSF];
// Assemble
int nDofField = dofField.size();
int nDofTest = dofTest.size();
for (int i = 0; i < nDofField; i++){
struct Dof dofI = getGetDPDofFromSmallFEM(dofField[i], *dofM);
for (int j = 0; j < nDofTest; j++){
struct Dof dofJ = getGetDPDofFromSmallFEM(dofTest[j], *dofM);
double termIJ = poisson->weak(i, j, elementIdSF);
((void (*)(struct Dof*, struct Dof*, double*))
FI->Function_AssembleTerm)(&dofI, &dofJ, &termIJ);
}
}
// Done
return;
}
#else
void Cal_SmallFemTermOfFemEquation(struct Element* Element,
struct EquationTerm* EquationTerm_P,
struct QuantityStorage* QuantityStorage_P0){
Message::Error("SmallFEM not activated");
}
#endif
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