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// ______ ______ _ _ _____ ______ |
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// | ____| ____| | (_)/ ____| | ____| |
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// | |__ | |__ | | _| (___ ___| |__ |
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// | __| | __| | | | |\___ \ / __| __| |
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// | | | |____| |____| |____) | (__| |____ |
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// |_| |______|______|_|_____/ \___|______| |
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// Finite Elements for Life Sciences and Engineering |
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// |
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// License: LGL2.1 License |
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// FELiScE default license: LICENSE in root folder |
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// |
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// Main authors: |
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// |
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// System includes |
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// External includes |
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// Project includes |
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#include "Solver/linearProblemNSRS.hpp" |
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namespace felisce{ |
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void |
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LinearProblemNSRS::initialize(std::vector<GeometricMeshRegion::Pointer>& mesh, FelisceTransient::Pointer fstransient, MPI_Comm& comm, bool doUseSNES) { |
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LinearProblemNS::initialize(mesh,fstransient,comm, doUseSNES); |
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m_vecs.Init("externalVelocity"); |
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m_seqVecs.Init("externalVelocity"); |
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m_vecs.Init("normalField"); |
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m_seqVecs.Init("normalField"); |
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m_imgType=neumann; |
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} |
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void |
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LinearProblemNSRS::initializeDofBoundaryAndBD2VolMaps() { |
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/// this function builds all the mappings |
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/// to deal with petsc objects defined at the interface |
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m_interfaceLabels = FelisceParam::instance().fsiInterfaceLabel; |
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m_dofBD[0/*iBD*/].initialize(this); |
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std::vector<int> components(3); |
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for( felInt iComp(0); iComp<this->dimension(); ++iComp ) { |
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this->dofBD(/*iBD*/0).buildListOfBoundaryPetscDofs(this, m_interfaceLabels, this->iUnknownVel() , iComp); |
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components[iComp]=iComp; |
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} |
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m_dofBD[0/*iBD*/].buildBoundaryVolumeMapping( m_iUnknownVel, components); |
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} |
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/*! \brief Function to assemble the mass matrix |
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* Function to be called in the assemblyLoopBoundaryGeneral |
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*/ |
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void LinearProblemNSRS::massMatrixComputer(felInt ielSupportDof) { |
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this->m_elementMatBD[0]->zero(); |
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this->m_elementMatBD[0]->phi_i_phi_j(/*coef*/1.,*m_curvFePre,/*iblock*/0,/*iblock*/0,this->dimension()); |
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this->setValueMatrixBD(ielSupportDof); |
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} |
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/*! \brief Function to assemble the laplacian matrix |
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* Function to be called in the assemblyLoopBoundaryGeneral |
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*/ |
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void LinearProblemNSRS::laplacianMatrixComputer(felInt ielSupportDof) { |
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m_normalField.setValue(this->m_seqVecs.Get("normalField"), *m_curvFePre, ielSupportDof, /*m_idVarVel*/0, this->m_ao, this->dof() ); |
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m_curv.update(m_normalField, m_curvFePre->covMetric[0], m_curvFePre->m_covBasis[0]); |
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this->m_elementMatBD[0]->zero(); |
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for( felInt iComp(0); iComp<this->dimension(); ++iComp ) { |
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this->m_elementMatBD[0]->sGrad_psi_j_tensor_sGrad_phi_i_for_scalar(/*coef*/ 1, *m_curvFePre, m_curv.invMetricTensor(),/*idVelBlock*/0+iComp );//TODO we could save some computations here. |
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} |
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std::vector<felInt> idBd; |
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for( felInt iDof(0); iDof<m_curvFePre->numDof(); ++iDof ) { |
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felInt id(0); |
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this->dof().loc2glob(ielSupportDof, iDof, 0/*idVar*/, 0/*iComp*/, id); |
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AOApplicationToPetsc(this->ao(),1,&id); |
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if( m_idDofRingsSeq.find(id) != m_idDofRingsSeq.end() ) { |
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idBd.push_back(iDof); |
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} |
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} |
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if ( idBd.size() == 2 ) { |
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double h=m_curvFePre->measOfSegment(idBd[0],idBd[1]); |
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double TGV = 1.e10; |
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for ( felInt iComp(0); iComp<this->dimension(); ++iComp ) { |
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UBlasMatrixRange matrix = this->m_elementMatBD[0]->matBlock(iComp,iComp); |
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matrix(idBd[0],idBd[0]) += TGV*h/3; |
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matrix(idBd[1],idBd[1]) += TGV*h/3; |
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matrix(idBd[1],idBd[0]) += TGV*h/6; |
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matrix(idBd[0],idBd[1]) += TGV*h/6; |
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} |
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} |
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// |
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this->setValueMatrixBD(ielSupportDof); |
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} |
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void |
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LinearProblemNSRS::initPerETLAP() { |
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this->initPerETMASS(); |
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m_normalField.initialize( DOF_FIELD, *m_curvFePre, m_curvFePre->numCoor() ); |
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} |
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void |
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LinearProblemNSRS::initPerETMASS() { |
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felInt numDofTotal = 0; |
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//pay attention this numDofTotal is bigger than expected since it counts for all the VARIABLES |
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for (std::size_t iFe = 0; iFe < this->m_listCurvilinearFiniteElement.size(); iFe++) {//this loop is on variables while it should be on unknown |
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numDofTotal += this->m_listCurvilinearFiniteElement[iFe]->numDof()*this->m_listVariable[iFe].numComponent(); |
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} |
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m_globPosColumn.resize(numDofTotal); m_globPosRow.resize(numDofTotal); m_matrixValues.resize(numDofTotal*numDofTotal); |
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m_curvFePre = this->m_listCurvilinearFiniteElement[ m_iPressure ]; |
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} |
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void |
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LinearProblemNSRS::updateFE(const std::vector<Point*>& elemPoint, const std::vector<int>&) { |
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m_curvFePre->updateMeasNormal(0, elemPoint); |
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} |
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void |
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LinearProblemNSRS::exportNormalField() { |
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PetscVector tmpVec = this->dofBD(/*iBD*/0).allocateBoundaryVector(DofBoundary::parallel); |
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this->dofBD(/*iBD*/0).restrictOnBoundary(this->m_seqVecs.Get("normalField"), tmpVec); |
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if ( this->dofBD(/*iBD*/0).hasDofsOnBoundary() ) { |
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tmpVec.saveInBinaryFormat( this->m_dofBD[0/*iBD*/].comm(), "normal", FelisceParam::instance().resultDir ); |
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} |
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} |
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void LinearProblemNSRS::finalizeEssBCTransientDerivedProblem() { |
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if ( m_fstransient->iteration > 0 || m_forceConvAndStabComputation ) { |
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for(std::size_t iBC=0; iBC < m_boundaryConditionList.numDirichletBoundaryCondition(); iBC++) { |
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BoundaryCondition* BC = m_boundaryConditionList.Dirichlet(iBC); |
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if ( m_useSteklovData ) { |
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this->setValueBoundaryCondition(BC,m_seqVecs.Get("dataSteklov")); |
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} else { |
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this->setValueBoundaryCondition(BC,m_seqVecs.Get("externalVelocity")); |
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} |
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} |
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} |
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} |
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void LinearProblemNSRS::computeTheConstantResponse() { |
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// This flag is necessary to change the behavior of computElementArray and to make it compute also the Stabilization terms |
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m_forceConvAndStabComputation = true; |
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this->clearMatrixRHS( FlagMatrixRHS::matrix_and_rhs); //This clears just the matrix 0 |
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this->clearMatrix(1); // We want to clear everything. |
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this->assembleVolumeSystem(FlagMatrixRHS::matrix_and_rhs); |
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this->solve(MpiInfo::rankProc(),MpiInfo::numProc()); |
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this->gatherSolution(); |
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std::vector<IO::Pointer> iotmp = {felisce::make_shared<IO>(FelisceParam::instance().inputDirectory, FelisceParam::instance().inputFile, FelisceParam::instance().inputMesh[1], |
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FelisceParam::instance().outputMesh[1], FelisceParam::instance().meshDir, FelisceParam::instance().resultDir, |
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"constResp")}; |
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iotmp[0]->writeMesh(*m_mesh[1]); |
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iotmp[0]->initializeOutput(); |
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double time=0; |
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int k=0; |
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this->writeSolutionFromVec(this->sequentialSolution(), MpiInfo::rankProc(), iotmp, time, k, std::string("constResp")); |
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iotmp[0]->postProcess(time/*, !m_sameGeometricMeshForVariable*/); |
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// The standard behavior is then restored |
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m_forceConvAndStabComputation = false; |
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} |
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void LinearProblemNSRS::derivedProblemAssemble(FlagMatrixRHS flag) { |
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if ( flag == FlagMatrixRHS::matrix_and_rhs || flag == FlagMatrixRHS::only_matrix ) { |
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this->addMatrixRHS(); |
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} |
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} |
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void LinearProblemNSRS::useSteklovDataBegin() { |
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LinearProblemReducedSteklov<LinearProblemNS>::useSteklovDataBegin(); |
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m_forceConvAndStabComputation = true; |
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} |
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void LinearProblemNSRS::useSteklovDataEnd() { |
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LinearProblemReducedSteklov<LinearProblemNS>::useSteklovDataEnd(); |
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m_forceConvAndStabComputation = false; |
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} |
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void |
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LinearProblemNSRS::solveStokesUsingSteklov(FelisceTransient::Pointer fs, int nfp) |
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{ |
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// initialization and computation |
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this->applySteklov(m_seqVecs.Get("externalVelocity"), this->solution(),fs,nfp); |
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} |
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void |
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LinearProblemNSRS::computeResidualRS() { |
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if ( FelisceParam::instance().computeSteklov ) { |
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this->seqResidual().copyFrom(this->sequentialSolution()); |
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} else { |
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LinearProblemReducedSteklov<LinearProblemNS>::computeResidual(); |
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} |
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} |
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} |
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