Example #1
0
void LSPrimaryVariableMapper :: mapPrimaryVariables(FloatArray &oU, Domain &iOldDom, Domain &iNewDom, ValueModeType iMode, TimeStep &iTStep)
{
    EngngModel *engngMod = iNewDom.giveEngngModel();
    EModelDefaultEquationNumbering num;


    const int dim = iNewDom.giveNumberOfSpatialDimensions();

    int numElNew = iNewDom.giveNumberOfElements();

    // Count dofs
    int numDofsNew = engngMod->giveNumberOfDomainEquations( 1, num );


    oU.resize(numDofsNew);
    oU.zero();

    FloatArray du(numDofsNew);
    du.zero();

    FloatArray res(numDofsNew);

    std :: unique_ptr< SparseMtrx > K;
    std :: unique_ptr< SparseLinearSystemNM > solver;

    solver.reset( classFactory.createSparseLinSolver(ST_Petsc, & iOldDom, engngMod) );
    if (!solver) {
        solver.reset( classFactory.createSparseLinSolver(ST_Direct, & iOldDom, engngMod) );
    }
    K.reset( classFactory.createSparseMtrx(solver->giveRecommendedMatrix(true)) );

    K->buildInternalStructure( engngMod, iNewDom.giveNumber(), num );

    int maxIter = 1;

    for ( int iter = 0; iter < maxIter; iter++ ) {
        K->zero();
        res.zero();


        // Contribution from elements
        for ( int elIndex = 1; elIndex <= numElNew; elIndex++ ) {
            StructuralElement *elNew = dynamic_cast< StructuralElement * >( iNewDom.giveElement(elIndex) );
            if ( elNew == NULL ) {
                OOFEM_ERROR("Failed to cast Element new to StructuralElement.");
            }

            ///////////////////////////////////
            // Compute residual

            // Count element dofs
            int numElNodes = elNew->giveNumberOfDofManagers();
            int numElDofs = 0;
            for ( int i = 1; i <= numElNodes; i++ ) {
                numElDofs += elNew->giveDofManager(i)->giveNumberOfDofs();
            }

            FloatArray elRes(numElDofs);
            elRes.zero();

            IntArray elDofsGlob;
            elNew->giveLocationArray( elDofsGlob, num );


            // Loop over Gauss points
            for ( int intRuleInd = 0; intRuleInd < elNew->giveNumberOfIntegrationRules(); intRuleInd++ ) {

                for ( GaussPoint *gp: *elNew->giveIntegrationRule(intRuleInd) ) {

                    // New N-matrix
                    FloatMatrix NNew;
                    elNew->computeNmatrixAt(gp->giveNaturalCoordinates(), NNew);


                    //////////////
                    // Global coordinates of GP
                    const FloatArray &localCoord = gp->giveNaturalCoordinates();
                    FloatArray globalCoord;
                    elNew->computeGlobalCoordinates(globalCoord, localCoord);
                    //////////////


                    // Localize element and point in the old domain
                    FloatArray localCoordOld(dim), pointCoordOld(dim);
                    StructuralElement *elOld = dynamic_cast< StructuralElement * >( iOldDom.giveSpatialLocalizer()->giveElementClosestToPoint(localCoordOld, pointCoordOld, globalCoord, 0) );
                    if ( elOld == NULL ) {
                        OOFEM_ERROR("Failed to cast Element old to StructuralElement.");
                    }


                    // Compute N-Matrix for the old element
                    FloatMatrix NOld;
                    elOld->computeNmatrixAt(localCoordOld, NOld);

                    // Fetch nodal displacements for the new element
                    FloatArray nodeDispNew( elDofsGlob.giveSize() );


                    int dofsPassed = 1;
                    for ( int elNode: elNew->giveDofManArray() ) {
//                        DofManager *dMan = iNewDom.giveNode(elNode);
                        DofManager *dMan = iNewDom.giveDofManager(elNode);

                        for ( Dof *dof: *dMan ) {
                            if ( elDofsGlob.at(dofsPassed) != 0 ) {
                                nodeDispNew.at(dofsPassed) = oU.at( elDofsGlob.at(dofsPassed) );
                            } else {
                                if ( dof->hasBc(& iTStep) ) {
                                    nodeDispNew.at(dofsPassed) = dof->giveBcValue(iMode, & iTStep);
                                }
                            }

                            dofsPassed++;
                        }
                    }


                    FloatArray newDisp;
                    newDisp.beProductOf(NNew, nodeDispNew);


                    // Fetch nodal displacements for the old element
                    FloatArray nodeDispOld;
                    dofsPassed = 1;
                    IntArray elDofsGlobOld;
                    elOld->giveLocationArray( elDofsGlobOld, num );

//                    elOld->computeVectorOf(iMode, &(iTStep), nodeDisp);
                    int numElNodesOld = elOld->giveNumberOfDofManagers();
                    for(int nodeIndOld = 1; nodeIndOld <= numElNodesOld; nodeIndOld++) {
                        DofManager *dManOld = elOld->giveDofManager(nodeIndOld);

                        for ( Dof *dof: *dManOld ) {
                            if ( elDofsGlobOld.at(dofsPassed) != 0 ) {
                                FloatArray dofUnknowns;

                                if(dof->giveEqn() > 0) {
                                    dof->giveUnknowns(dofUnknowns, iMode, &iTStep);

#ifdef DEBUG
                                    if(!dofUnknowns.isFinite()) {
                                        OOFEM_ERROR("!dofUnknowns.isFinite()")
                                    }

                                    if(dofUnknowns.giveSize() < 1) {
                                        OOFEM_ERROR("dofUnknowns.giveSize() < 1")
                                    }
#endif
                                    nodeDispOld.push_back(dofUnknowns.at(1));
                                }
                                else {
                                    // TODO: Why does this case occur?
                                    nodeDispOld.push_back(0.0);
                                }
                            } else {
                                if ( dof->hasBc(& iTStep) ) {
//                                    printf("hasBC.\n");
#ifdef DEBUG
                                    if(!std::isfinite(dof->giveBcValue(iMode, & iTStep))) {
                                        OOFEM_ERROR("!std::isfinite(dof->giveBcValue(iMode, & iTStep))")
                                    }
#endif
                                    nodeDispOld.push_back( dof->giveBcValue(iMode, & iTStep) );
                                }
                                else {
//                                    printf("Unhandled case in LSPrimaryVariableMapper :: mapPrimaryVariables().\n");
                                    nodeDispOld.push_back( 0.0 );
                                }
                            }

                            dofsPassed++;
                        }

                    }
Example #2
0
void LSPrimaryVariableMapper :: mapPrimaryVariables(FloatArray &oU, Domain &iOldDom, Domain &iNewDom, ValueModeType iMode, TimeStep &iTStep)
{
    EngngModel *engngMod = iNewDom.giveEngngModel();
    EModelDefaultEquationNumbering num;


    const int dim = iNewDom.giveNumberOfSpatialDimensions();

    int numElNew = iNewDom.giveNumberOfElements();

    // Count dofs
    int numDofsNew = engngMod->giveNumberOfDomainEquations( 1, num );


    oU.resize(numDofsNew);
    oU.zero();

    FloatArray du(numDofsNew);
    du.zero();

    FloatArray res(numDofsNew);

#ifdef __PETSC_MODULE
    PetscSparseMtrx *K = dynamic_cast<PetscSparseMtrx*>( classFactory.createSparseMtrx(SMT_PetscMtrx) );
    SparseLinearSystemNM *solver = classFactory.createSparseLinSolver(ST_Petsc, & iOldDom, engngMod);
#else
    SparseMtrx *K = classFactory.createSparseMtrx(SMT_Skyline);
    SparseLinearSystemNM *solver = classFactory.createSparseLinSolver(ST_Direct, & iOldDom, engngMod);
#endif


    K->buildInternalStructure( engngMod, 1, num );

    int maxIter = 1;

    for ( int iter = 0; iter < maxIter; iter++ ) {
        K->zero();
        res.zero();


        // Contribution from elements
        for ( int elIndex = 1; elIndex <= numElNew; elIndex++ ) {
            StructuralElement *elNew = dynamic_cast< StructuralElement * >( iNewDom.giveElement(elIndex) );
            if ( elNew == NULL ) {
                OOFEM_ERROR("Failed to cast Element new to StructuralElement.");
            }

            ///////////////////////////////////
            // Compute residual

            // Count element dofs
            int numElNodes = elNew->giveNumberOfDofManagers();
            int numElDofs = 0;
            for ( int i = 1; i <= numElNodes; i++ ) {
                numElDofs += elNew->giveDofManager(i)->giveNumberOfDofs();
            }

            FloatArray elRes(numElDofs);
            elRes.zero();

            IntArray elDofsGlob;
            elNew->giveLocationArray( elDofsGlob, num );


            // Loop over Gauss points
            for ( int intRuleInd = 0; intRuleInd < elNew->giveNumberOfIntegrationRules(); intRuleInd++ ) {
                IntegrationRule *iRule = elNew->giveIntegrationRule(intRuleInd);

                for ( GaussPoint *gp: *iRule ) {

                    // New N-matrix
                    FloatMatrix NNew;
                    elNew->computeNmatrixAt(* ( gp->giveNaturalCoordinates() ), NNew);


                    //////////////
                    // Global coordinates of GP
                    const int nDofMan = elNew->giveNumberOfDofManagers();

                    FloatArray Nc;
                    FEInterpolation *interp = elNew->giveInterpolation();
                    const FloatArray &localCoord = * ( gp->giveNaturalCoordinates() );
                    interp->evalN( Nc, localCoord, FEIElementGeometryWrapper(elNew) );

                    const IntArray &elNodes = elNew->giveDofManArray();

                    FloatArray globalCoord(dim);
                    globalCoord.zero();

                    for ( int i = 1; i <= nDofMan; i++ ) {
                        DofManager *dMan = elNew->giveDofManager(i);

                        for ( int j = 1; j <= dim; j++ ) {
                            globalCoord.at(j) += Nc.at(i) * dMan->giveCoordinate(j);
                        }
                    }
                    //////////////


                    // Localize element and point in the old domain
                    FloatArray localCoordOld(dim), pointCoordOld(dim);
                    StructuralElement *elOld = dynamic_cast< StructuralElement * >( iOldDom.giveSpatialLocalizer()->giveElementClosestToPoint(localCoordOld, pointCoordOld, globalCoord, 0) );
                    if ( elOld == NULL ) {
                        OOFEM_ERROR("Failed to cast Element old to StructuralElement.");
                    }


                    // Compute N-Matrix for the old element
                    FloatMatrix NOld;
                    elOld->computeNmatrixAt(localCoordOld, NOld);

                    // Fetch nodal displacements for the new element
                    FloatArray nodeDispNew( elDofsGlob.giveSize() );


                    int dofsPassed = 1;
                    for ( int i = 1; i <= elNodes.giveSize(); i++ ) {
                        DofManager *dMan = elNew->giveDofManager(i);

                        for ( Dof *dof: *dMan ) {
                            if ( elDofsGlob.at(dofsPassed) != 0 ) {
                                nodeDispNew.at(dofsPassed) = oU.at( elDofsGlob.at(dofsPassed) );
                            } else {
                                if ( dof->hasBc(& iTStep) ) {
                                    nodeDispNew.at(dofsPassed) = dof->giveBcValue(iMode, & iTStep);
                                }
                            }

                            dofsPassed++;
                        }
                    }


                    FloatArray newDisp;
                    newDisp.beProductOf(NNew, nodeDispNew);


                    // Fetch nodal displacements for the old element
                    FloatArray nodeDispOld;
                    dofsPassed = 1;
                    IntArray elDofsGlobOld;
                    elOld->giveLocationArray( elDofsGlobOld, num );

//                    elOld->computeVectorOf(iMode, &(iTStep), nodeDisp);
                    int numElNodesOld = elOld->giveNumberOfDofManagers();
                    for(int nodeIndOld = 1; nodeIndOld <= numElNodesOld; nodeIndOld++) {
                        DofManager *dManOld = elOld->giveDofManager(nodeIndOld);

                        for ( Dof *dof: *dManOld ) {
                            if ( elDofsGlobOld.at(dofsPassed) != 0 ) {
                                FloatArray dofUnknowns;
                                dof->giveUnknowns(dofUnknowns, iMode, &iTStep);

#ifdef DEBUG
                                if(!dofUnknowns.isFinite()) {
                                    OOFEM_ERROR("!dofUnknowns.isFinite()")
                                }

                                if(dofUnknowns.giveSize() < 1) {
                                    OOFEM_ERROR("dofUnknowns.giveSize() < 1")
                                }
#endif
                                nodeDispOld.push_back(dofUnknowns.at(1));
                            } else {
                                if ( dof->hasBc(& iTStep) ) {
//                                    printf("hasBC.\n");
#ifdef DEBUG
                                    if(!std::isfinite(dof->giveBcValue(iMode, & iTStep))) {
                                        OOFEM_ERROR("!std::isfinite(dof->giveBcValue(iMode, & iTStep))")
                                    }
#endif
                                    nodeDispOld.push_back( dof->giveBcValue(iMode, & iTStep) );
                                }
                                else {
//                                    printf("Unhandled case in LSPrimaryVariableMapper :: mapPrimaryVariables().\n");
                                    nodeDispOld.push_back( 0.0 );
                                }
                            }

                            dofsPassed++;
                        }

                    }


                    FloatArray oldDisp;
                    oldDisp.beProductOf(NOld, nodeDispOld);

                    FloatArray temp, du;

#ifdef DEBUG
                    if(!oldDisp.isFinite()) {
                        OOFEM_ERROR("!oldDisp.isFinite()")
                    }

                    if(!newDisp.isFinite()) {
                        OOFEM_ERROR("!newDisp.isFinite()")
                    }
#endif

                    du.beDifferenceOf(oldDisp, newDisp);
                    temp.beTProductOf(NNew, du);
                    double dV = elNew->computeVolumeAround(gp);
                    elRes.add(dV, temp);
                }
            }