int main(int argc, char *argv[])
{
LibUtilities::SessionReaderSharedPtr session;
string vDriverModule;
DriverSharedPtr drv;
try
{
// Create session reader.
session = LibUtilities::SessionReader::CreateInstance(argc, argv);
// Create driver
session->LoadSolverInfo("Driver", vDriverModule, "Standard");
drv = GetDriverFactory().CreateInstance(vDriverModule, session);
// Execute driver
drv->Execute();
// Finalise session
session->Finalise();
}
catch (const std::runtime_error& e)
{
return 1;
}
catch (const std::string& eStr)
{
cout << "Error: " << eStr << endl;
}
return 0;
}
int main(int argc, char *argv[])
{
LibUtilities::SessionReaderSharedPtr vSession
= LibUtilities::SessionReader::CreateInstance(argc, argv);
MultiRegions::ContField1DSharedPtr Exp,Sol;
int i,j;
int order, nq;
int coordim;
Array<OneD,NekDouble> sol;
Array<OneD,NekDouble> xc0,xc1,xc2;
if(argc != 2)
{
fprintf(stderr,"Usage: ProjectCont1D mesh \n");
exit(1);
}
//----------------------------------------------
// read the problem parameters from input file
SpatialDomains::MeshGraphSharedPtr graph1D = MemoryManager<SpatialDomains::MeshGraph1D>::AllocateSharedPtr(vSession);
//----------------------------------------------
//----------------------------------------------
// Print summary of solution details
const SpatialDomains::ExpansionMap &expansions = graph1D->GetExpansions();
LibUtilities::BasisKey bkey0
= expansions.begin()->second->m_basisKeyVector[0];
int nmodes = bkey0.GetNumModes();
cout << "Solving 1D Continuous Projection" << endl;
cout << " Expansion : (" << LibUtilities::BasisTypeMap[bkey0.GetBasisType()] <<")" << endl;
cout << " No. modes : " << nmodes << endl;
cout << endl;
//----------------------------------------------
//----------------------------------------------
// Define Expansion
Exp = MemoryManager<MultiRegions::ContField1D>
::AllocateSharedPtr(vSession,graph1D,vSession->GetVariable(0));
//----------------------------------------------
//----------------------------------------------
// Define solution to be projected
coordim = Exp->GetCoordim(0);
nq = Exp->GetTotPoints();
order = Exp->GetExp(0)->GetNcoeffs();
// define coordinates and solution
sol = Array<OneD,NekDouble>(nq);
xc0 = Array<OneD,NekDouble>(nq);
xc1 = Array<OneD,NekDouble>(nq);
xc2 = Array<OneD,NekDouble>(nq);
switch(coordim)
{
case 1:
Exp->GetCoords(xc0);
Vmath::Zero(nq,&xc1[0],1);
Vmath::Zero(nq,&xc2[0],1);
break;
case 2:
Exp->GetCoords(xc0,xc1);
Vmath::Zero(nq,&xc2[0],1);
break;
case 3:
Exp->GetCoords(xc0,xc1,xc2);
break;
}
for(i = 0; i < nq; ++i)
{
sol[i] = 0.0;
for(j = 0; j < order; ++j)
{
sol[i] += pow(xc0[i],j);
sol[i] += pow(xc1[i],j);
sol[i] += pow(xc2[i],j);
}
}
//----------------------------------------------
//----------------------------------------------
// Setup Temporary expansion and put in solution
Sol = MemoryManager<MultiRegions::ContField1D>
::AllocateSharedPtr(*Exp);
Sol->SetPhys(sol);
//----------------------------------------------
//---------------------------------------------
// Project onto Expansion
Exp->FwdTrans(Sol->GetPhys(), Exp->UpdateCoeffs());
//---------------------------------------------
//-------------------------------------------
// Backward Transform Solution to get projected values
Exp->BwdTrans(Exp->GetCoeffs(), Exp->UpdatePhys());
//-------------------------------------------
//--------------------------------------------
// Calculate L_inf error
cout << "L infinity error: " << Exp->Linf(Sol->GetPhys()) << endl;
cout << "L 2 error: " << Exp->L2 (Sol->GetPhys()) << endl;
//--------------------------------------------
vSession->Finalise();
return 0;
}
int main(int argc, char *argv[])
{
LibUtilities::SessionReaderSharedPtr vSession
= LibUtilities::SessionReader::CreateInstance(argc, argv);
MultiRegions::ExpList1DSharedPtr Exp,Sol;
int i,j;
int nq;
int coordim;
Array<OneD, NekDouble> sol;
Array<OneD, NekDouble> xc0,xc1,xc2;
// read in mesh
SpatialDomains::MeshGraphSharedPtr graph1D = MemoryManager<SpatialDomains::MeshGraph1D>::AllocateSharedPtr(vSession);
// Define Expansion
const SpatialDomains::ExpansionMap &expansions = graph1D->GetExpansions();
LibUtilities::BasisKey bkey0 = expansions.begin()->second->m_basisKeyVector[0];
int nmodes = bkey0.GetNumModes();
Exp = MemoryManager<MultiRegions::ExpList1D>::AllocateSharedPtr(vSession,bkey0,graph1D);
//----------------------------------------------
// Define solution to be projected
coordim = Exp->GetCoordim(0);
nq = Exp->GetTotPoints();
// define coordinates and solution
sol = Array<OneD, NekDouble>(nq);
xc0 = Array<OneD, NekDouble>(nq);
xc1 = Array<OneD, NekDouble>(nq);
xc2 = Array<OneD, NekDouble>(nq);
switch(coordim)
{
case 1:
Exp->GetCoords(xc0);
Vmath::Zero(nq,&xc1[0],1);
Vmath::Zero(nq,&xc2[0],1);
break;
case 2:
Exp->GetCoords(xc0,xc1);
Vmath::Zero(nq,&xc2[0],1);
break;
case 3:
Exp->GetCoords(xc0,xc1,xc2);
break;
}
for(i = 0; i < nq; ++i)
{
sol[i] = 0.0;
for(j = 0; j < nmodes; ++j)
{
sol[i] += pow(xc0[i],j);
sol[i] += pow(xc1[i],j);
sol[i] += pow(xc2[i],j);
}
}
//---------------------------------------------
// Set up ExpList1D containing the solution
Sol = MemoryManager<MultiRegions::ExpList1D>::AllocateSharedPtr(*Exp);
Sol->SetPhys(sol);
//---------------------------------------------
//---------------------------------------------
// Project onto Expansion
Exp->FwdTrans(Sol->GetPhys(), Exp->UpdateCoeffs());
//---------------------------------------------
//-------------------------------------------
// Backward Transform Solution to get projected values
Exp->BwdTrans(Exp->GetCoeffs(), Exp->UpdatePhys());
//-------------------------------------------
//--------------------------------------------
// Calculate L_inf error
if (vSession->GetComm()->GetRank() == 0)
{
cout << "L infinity error: " << Exp->Linf(Sol->GetPhys()) << endl;
cout << "L 2 error: " << Exp->L2 (Sol->GetPhys()) << endl;
}
//--------------------------------------------
vSession->Finalise();
return 0;
}
int main(int argc, char *argv[])
{
LibUtilities::SessionReaderSharedPtr vSession
= LibUtilities::SessionReader::CreateInstance(argc, argv);
MultiRegions::ContField2DSharedPtr Exp,Fce;
int nq, coordim;
Array<OneD,NekDouble> fce;
Array<OneD,NekDouble> xc0,xc1,xc2;
NekDouble lambda;
NekDouble ax,ay;
if((argc != 2)&&(argc != 3))
{
fprintf(stderr,"Usage: SteadyLinearAdvectionReaction2D meshfile [SysSolnType]\n");
exit(1);
}
//----------------------------------------------
// Read in mesh from input file
SpatialDomains::MeshGraphSharedPtr graph2D = MemoryManager<SpatialDomains::MeshGraph2D>::AllocateSharedPtr(vSession);
//----------------------------------------------
//----------------------------------------------
// Get Advection Velocity
ax = vSession->GetParameter("Advection_x");
ay = vSession->GetParameter("Advection_y");
//----------------------------------------------
//----------------------------------------------
// Print summary of solution details
lambda = vSession->GetParameter("Lambda");
cout << " Lambda : " << lambda << endl;
const SpatialDomains::ExpansionMap &expansions = graph2D->GetExpansions();
LibUtilities::BasisKey bkey0
= expansions.begin()->second->m_basisKeyVector[0];
LibUtilities::BasisKey bkey1
= expansions.begin()->second->m_basisKeyVector[1];
cout << "Solving Steady 2D LinearAdvection :" << endl;
cout << " Advection_x : " << ax << endl;
cout << " Advection_y : " << ay << endl;
cout << " Expansion : (" << LibUtilities::BasisTypeMap[bkey0.GetBasisType()] <<","<< LibUtilities::BasisTypeMap[bkey1.GetBasisType()] << ")" << endl;
cout << " No. modes : " << bkey0.GetNumModes() << endl;
cout << endl;
//----------------------------------------------
//----------------------------------------------
// Define Expansion
Exp = MemoryManager<MultiRegions::ContField2D>::
AllocateSharedPtr(vSession,graph2D,vSession->GetVariable(0));
//----------------------------------------------
Timing("Read files and define exp ..");
//----------------------------------------------
// Set up coordinates of mesh for Forcing function evaluation
coordim = Exp->GetCoordim(0);
nq = Exp->GetTotPoints();
xc0 = Array<OneD,NekDouble>(nq,0.0);
xc1 = Array<OneD,NekDouble>(nq,0.0);
xc2 = Array<OneD,NekDouble>(nq,0.0);
switch(coordim)
{
case 1:
Exp->GetCoords(xc0);
break;
case 2:
Exp->GetCoords(xc0,xc1);
break;
case 3:
Exp->GetCoords(xc0,xc1,xc2);
break;
}
Array<OneD, Array< OneD, NekDouble> > Vel(2);
Vel[0] = Array<OneD, NekDouble> (nq,ax);
Vel[1] = Array<OneD, NekDouble> (nq,ay);
//----------------------------------------------
//----------------------------------------------
// Define forcing function for first variable defined in file
fce = Array<OneD,NekDouble>(nq);
LibUtilities::EquationSharedPtr ffunc = vSession->GetFunction("Forcing",0);
ffunc->Evaluate(xc0,xc1,xc2,fce);
//----------------------------------------------
//----------------------------------------------
// Setup expansion containing the forcing function
Fce = MemoryManager<MultiRegions::ContField2D>::AllocateSharedPtr(*Exp);
Fce->SetPhys(fce);
//----------------------------------------------
Timing("Define forcing ..");
//----------------------------------------------
// Helmholtz solution taking physical forcing
Exp->LinearAdvectionReactionSolve(Vel, Fce->GetPhys(), Exp->UpdateCoeffs(), lambda, MultiRegions::eGlobal);
//----------------------------------------------
Timing("Linear Advection Solve ..");
//----------------------------------------------
// Backward Transform Solution to get solved values
Exp->BwdTrans(Exp->GetCoeffs(), Exp->UpdatePhys(), MultiRegions::eGlobal);
//----------------------------------------------
//----------------------------------------------
// See if there is an exact solution, if so
// evaluate and plot errors
LibUtilities::EquationSharedPtr ex_sol = vSession->GetFunction("ExactSolution",0);
if(ex_sol)
{
//----------------------------------------------
// evaluate exact solution
ex_sol->Evaluate(xc0,xc1,xc2,fce);
//----------------------------------------------
//--------------------------------------------
// Calculate L_inf error
Fce->SetPhys(fce);
Fce->SetPhysState(true);
cout << "L infinity error: " << Exp->Linf(Fce->GetPhys()) << endl;
cout << "L 2 error: " << Exp->L2 (Fce->GetPhys()) << endl;
//--------------------------------------------
}
//----------------------------------------------
vSession->Finalise();
return 0;
}
int main(int argc, char *argv[])
{
LibUtilities::SessionReaderSharedPtr vSession
= LibUtilities::SessionReader::CreateInstance(argc, argv);
MultiRegions::ContField3DSharedPtr Exp,Fce;
int i, j, nq, coordim;
Array<OneD,NekDouble> fce;
Array<OneD,NekDouble> xc0,xc1,xc2;
if(argc != 2)
{
fprintf(stderr,"Usage: ProjectCont3D meshfile \n");
exit(1);
}
//----------------------------------------------
// Read in mesh from input file
SpatialDomains::MeshGraphSharedPtr graph3D = MemoryManager<SpatialDomains::MeshGraph3D>::AllocateSharedPtr(vSession);
//----------------------------------------------
//----------------------------------------------
// Print summary of solution details
const SpatialDomains::ExpansionMap &expansions = graph3D->GetExpansions();
LibUtilities::BasisKey bkey
= expansions.begin()->second->m_basisKeyVector[0];
int nmodes = bkey.GetNumModes();
cout << "Solving 3D C0 continuous Projection" << endl;
cout << " No. modes : " << nmodes << endl;
cout << endl;
//----------------------------------------------
//----------------------------------------------
// Define Expansion
Exp = MemoryManager<MultiRegions::ContField3D>
::AllocateSharedPtr(vSession,graph3D,vSession->GetVariable(0));
//----------------------------------------------
//----------------------------------------------
// Set up coordinates of mesh for Forcing function evaluation
coordim = Exp->GetCoordim(0);
nq = Exp->GetTotPoints();
xc0 = Array<OneD,NekDouble>(nq,0.0);
xc1 = Array<OneD,NekDouble>(nq,0.0);
xc2 = Array<OneD,NekDouble>(nq,0.0);
switch(coordim)
{
case 1:
Exp->GetCoords(xc0);
break;
case 2:
Exp->GetCoords(xc0,xc1);
break;
case 3:
Exp->GetCoords(xc0,xc1,xc2);
break;
}
//----------------------------------------------
//----------------------------------------------
// Define forcing function
fce = Array<OneD,NekDouble>(nq);
for(i = 0; i < nq; ++i)
{
fce[i] = 0.0;
for(j = 0; j < nmodes; ++j)
{
fce[i] += pow(xc0[i],j);
fce[i] += pow(xc1[i],j);
fce[i] += pow(xc2[i],j);
}
}
//---------------------------------------------
// Set up ExpList1D containing the solution
Fce = MemoryManager<MultiRegions::ContField3D>::AllocateSharedPtr(*Exp);
Fce->SetPhys(fce);
//---------------------------------------------
//----------------------------------------------
// Write solution
//ofstream outfile("ProjectContFileOrig3D.dat");
//Fce->WriteToFile(outfile,eGnuplot);
//outfile.close();
//----------------------------------------------
//---------------------------------------------
// Project onto Expansion
Exp->FwdTrans(Fce->GetPhys(), Exp->UpdateCoeffs(), MultiRegions::eGlobal);
//---------------------------------------------
//-------------------------------------------
// Backward Transform Solution to get projected values
Exp->BwdTrans(Exp->GetCoeffs(), Exp->UpdatePhys(), MultiRegions::eGlobal);
//-------------------------------------------
//----------------------------------------------
// Write solution
//ofstream outfile2("ProjectContFile3D.dat");
//Exp->WriteToFile(outfile2,eGnuplot);
//outfile2.close();
//----------------------------------------------
//--------------------------------------------
// Calculate L_inf error
cout << "L infinity error: " << Exp->Linf(Fce->GetPhys()) << endl;
cout << "L 2 error: " << Exp->L2 (Fce->GetPhys()) << endl;
//--------------------------------------------
vSession->Finalise();
return 0;
}
int main(int argc, char *argv[])
{
LibUtilities::SessionReaderSharedPtr vSession
= LibUtilities::SessionReader::CreateInstance(argc, argv);
LibUtilities::CommSharedPtr vComm = vSession->GetComm();
MultiRegions::DisContField3DSharedPtr Exp,Fce;
int i, nq, coordim;
Array<OneD,NekDouble> fce;
Array<OneD,NekDouble> xc0,xc1,xc2;
StdRegions::ConstFactorMap factors;
if(argc < 2)
{
fprintf(stderr,"Usage: PostProcHDG3D meshfile [solntype]\n");
exit(1);
}
//----------------------------------------------
// Read in mesh from input file
SpatialDomains::MeshGraphSharedPtr graph3D = MemoryManager<SpatialDomains::MeshGraph3D>::AllocateSharedPtr(vSession);
//----------------------------------------------
//----------------------------------------------
// Print summary of solution details
factors[StdRegions::eFactorLambda] = vSession->GetParameter("Lambda");
factors[StdRegions::eFactorTau] = 1.0;
const SpatialDomains::ExpansionMap &expansions = graph3D->GetExpansions();
LibUtilities::BasisKey bkey0
= expansions.begin()->second->m_basisKeyVector[0];
//MAY NEED ADJUSTMENT FOR VARIOUS ELEMENT TYPES
int num_modes = bkey0.GetNumModes();
int num_points = bkey0.GetNumPoints();
if (vComm->GetRank() == 0)
{
cout << "Solving 3D Helmholtz:" << endl;
cout << " Lambda : " << factors[StdRegions::eFactorLambda] << endl;
cout << " No. modes : " << num_modes << endl;
cout << " No. points : " << num_points << endl;
cout << endl;
}
//----------------------------------------------
// Define Expansion
//----------------------------------------------
Exp = MemoryManager<MultiRegions::DisContField3D>::
AllocateSharedPtr(vSession,graph3D,vSession->GetVariable(0));
//----------------------------------------------
Timing("Read files and define exp ..");
//----------------------------------------------
// Set up coordinates of mesh for Forcing function evaluation
coordim = Exp->GetCoordim(0);
nq = Exp->GetTotPoints();
xc0 = Array<OneD,NekDouble>(nq,0.0);
xc1 = Array<OneD,NekDouble>(nq,0.0);
xc2 = Array<OneD,NekDouble>(nq,0.0);
switch(coordim)
{
case 1:
Exp->GetCoords(xc0);
break;
case 2:
Exp->GetCoords(xc0,xc1);
break;
case 3:
Exp->GetCoords(xc0,xc1,xc2);
break;
}
//----------------------------------------------
//----------------------------------------------
// Define forcing function for first variable defined in file
fce = Array<OneD,NekDouble>(nq);
LibUtilities::EquationSharedPtr ffunc
= vSession->GetFunction("Forcing", 0);
ffunc->Evaluate(xc0, xc1, xc2, fce);
//----------------------------------------------
//----------------------------------------------
// Setup expansion containing the forcing function
Fce = MemoryManager<MultiRegions::DisContField3D>::AllocateSharedPtr(*Exp);
Fce->SetPhys(fce);
//----------------------------------------------
Timing("Define forcing ..");
//----------------------------------------------
// Helmholtz solution taking physical forcing
Exp->HelmSolve(Fce->GetPhys(), Exp->UpdateCoeffs(), NullFlagList, factors);
//----------------------------------------------
Timing("Helmholtz Solve ..");
//-----------------------------------------------
// Backward Transform Solution to get solved values at
Exp->BwdTrans(Exp->GetCoeffs(), Exp->UpdatePhys());
//-----------------------------------------------
Timing("Backward Transform ..");
//-----------------------------------------------
// Write solution to file
//string out = vSession->GetSessionName() + ".fld";
//std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef
// = Exp->GetFieldDefinitions();
//std::vector<std::vector<NekDouble> > FieldData(FieldDef.size());
//for(i = 0; i < FieldDef.size(); ++i)
//{
// FieldDef[i]->m_fields.push_back("u");
// Exp->AppendFieldData(FieldDef[i], FieldData[i]);
//}
//LibUtilities::Write(out, FieldDef, FieldData);
//--------------------------------------------
//-----------------------------------------------
// See if there is an exact solution, if so
// evaluate and plot errors
LibUtilities::EquationSharedPtr ex_sol =
vSession->GetFunction("ExactSolution", 0);
//----------------------------------------------
// evaluate exact solution
ex_sol->Evaluate(xc0, xc1, xc2, fce);
//----------------------------------------------
//Tetrahedron
const LibUtilities::PointsKey PkeyT1(num_points+1,LibUtilities::eGaussLobattoLegendre);
const LibUtilities::PointsKey PkeyT2(num_points,LibUtilities::eGaussRadauMAlpha1Beta0);//need to doublecheck this one
const LibUtilities::PointsKey PkeyT3(num_points,LibUtilities::eGaussRadauMAlpha2Beta0);//need to doublecheck this one
LibUtilities::BasisKeyVector BkeyT;
BkeyT.push_back(LibUtilities::BasisKey(LibUtilities::eModified_A, num_modes+1, PkeyT1));
BkeyT.push_back(LibUtilities::BasisKey(LibUtilities::eModified_B, num_modes+1, PkeyT2));
BkeyT.push_back(LibUtilities::BasisKey(LibUtilities::eModified_C, num_modes+1, PkeyT3));
//Prism
const LibUtilities::PointsKey PkeyP1(num_points+1,LibUtilities::eGaussLobattoLegendre);
const LibUtilities::PointsKey PkeyP2(num_points+1,LibUtilities::eGaussLobattoLegendre);
const LibUtilities::PointsKey PkeyP3(num_points,LibUtilities::eGaussRadauMAlpha1Beta0);//need to doublecheck this one
LibUtilities::BasisKeyVector BkeyP;
BkeyP.push_back(LibUtilities::BasisKey(LibUtilities::eModified_A, num_modes+1, PkeyP1));
BkeyP.push_back(LibUtilities::BasisKey(LibUtilities::eModified_A, num_modes+1, PkeyP2));
BkeyP.push_back(LibUtilities::BasisKey(LibUtilities::eModified_B, num_modes+1, PkeyP3));
//Hexahedron
const LibUtilities::PointsKey PkeyH(num_points+1,LibUtilities::eGaussLobattoLegendre);
LibUtilities::BasisKeyVector BkeyH;
BkeyH.push_back(LibUtilities::BasisKey(LibUtilities::eModified_A, num_modes+1, PkeyH));
BkeyH.push_back(LibUtilities::BasisKey(LibUtilities::eModified_A, num_modes+1, PkeyH));
BkeyH.push_back(LibUtilities::BasisKey(LibUtilities::eModified_A, num_modes+1, PkeyH));
graph3D->SetBasisKey(LibUtilities::eTetrahedron, BkeyT);
graph3D->SetBasisKey(LibUtilities::ePrism, BkeyP);
graph3D->SetBasisKey(LibUtilities::eHexahedron, BkeyH);
MultiRegions::DisContField3DSharedPtr PostProc =
MemoryManager<MultiRegions::DisContField3D>::AllocateSharedPtr(vSession,graph3D,vSession->GetVariable(0));
int ErrorCoordim = PostProc->GetCoordim(0);
int ErrorNq = PostProc->GetTotPoints();
Array<OneD,NekDouble> ErrorXc0(ErrorNq,0.0);
Array<OneD,NekDouble> ErrorXc1(ErrorNq,0.0);
Array<OneD,NekDouble> ErrorXc2(ErrorNq,0.0);
switch(ErrorCoordim)
{
case 1:
PostProc->GetCoords(ErrorXc0);
break;
case 2:
PostProc->GetCoords(ErrorXc0,ErrorXc1);
break;
case 3:
PostProc->GetCoords(ErrorXc0,ErrorXc1,ErrorXc2);
break;
}
// evaluate exact solution
Array<OneD,NekDouble> ppSol(ErrorNq);
ex_sol->Evaluate(ErrorXc0,ErrorXc1,ErrorXc2,ppSol);
// calcualte spectral/hp approximation on the quad points of this new
// expansion basis
std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef
= Exp->GetFieldDefinitions();
std::vector<std::vector<NekDouble> > FieldData(FieldDef.size());
std::string fieldstr = "u";
for(i = 0; i < FieldDef.size(); ++i)
{
FieldDef[i]->m_fields.push_back(fieldstr);
Exp->AppendFieldData(FieldDef[i], FieldData[i]);
PostProc->ExtractDataToCoeffs(FieldDef[i],FieldData[i],fieldstr,PostProc->UpdateCoeffs());
}
// Interpolation of trace
std::vector<LibUtilities::FieldDefinitionsSharedPtr> TraceDef
= Exp->GetTrace()->GetFieldDefinitions();
std::vector<std::vector<NekDouble> > TraceData(TraceDef.size());
for(i = 0; i < TraceDef.size(); ++i)
{
TraceDef[i]->m_fields.push_back(fieldstr);
Exp->GetTrace()->AppendFieldData(TraceDef[i], TraceData[i]);
PostProc->GetTrace()->ExtractDataToCoeffs(TraceDef[i],TraceData[i],fieldstr,PostProc->GetTrace()->UpdateCoeffs());
}
PostProc->BwdTrans_IterPerExp(PostProc->GetCoeffs(),PostProc->UpdatePhys());
PostProc->EvaluateHDGPostProcessing(PostProc->UpdateCoeffs());
PostProc->BwdTrans_IterPerExp(PostProc->GetCoeffs(),PostProc->UpdatePhys());
NekDouble vLinfError = Exp->Linf(Exp->GetPhys(), fce);
NekDouble vL2Error = Exp->L2 (Exp->GetPhys(), fce);
NekDouble L2ErrorPostProc = PostProc->L2(PostProc->GetPhys(), ppSol);
NekDouble LinfErrorPostProc = PostProc->Linf(PostProc->GetPhys(), ppSol);
if (vSession->GetComm()->GetRank() == 0)
{
cout << "L infinity error : " << vLinfError << endl;
cout << "L 2 error : " << vL2Error << endl;
cout << "Postprocessed L infinity error : " << LinfErrorPostProc << endl;
cout << "Postprocessed L 2 error : " << L2ErrorPostProc << endl;
}
vSession->Finalise();
return 0;
}
int main(int argc, char *argv[])
{
LibUtilities::SessionReaderSharedPtr vSession
= LibUtilities::SessionReader::CreateInstance(argc, argv);
LibUtilities::CommSharedPtr vComm = vSession->GetComm();
MultiRegions::DisContField3DSharedPtr Exp, Fce;
int i, nq, coordim;
Array<OneD,NekDouble> fce;
Array<OneD,NekDouble> xc0,xc1,xc2;
StdRegions::ConstFactorMap factors;
if(argc < 2)
{
fprintf(stderr,"Usage: HDGHelmholtz3D meshfile [solntype]\n");
exit(1);
}
LibUtilities::FieldIOSharedPtr fld = MemoryManager<LibUtilities::FieldIO>::AllocateSharedPtr(vComm);
//----------------------------------------------
// Read in mesh from input file
SpatialDomains::MeshGraphSharedPtr graph3D =
MemoryManager<SpatialDomains::MeshGraph3D>::AllocateSharedPtr(vSession);
//----------------------------------------------
//----------------------------------------------
// Print summary of solution details
factors[StdRegions::eFactorLambda] = vSession->GetParameter("Lambda");
factors[StdRegions::eFactorTau] = 1.0;
const SpatialDomains::ExpansionMap &expansions = graph3D->GetExpansions();
LibUtilities::BasisKey bkey0
= expansions.begin()->second->m_basisKeyVector[0];
if (vComm->GetRank() == 0)
{
cout << "Solving 3D Helmholtz:" << endl;
cout << " - Communication: "
<< vSession->GetComm()->GetType() << " ("
<< vSession->GetComm()->GetSize()
<< " processes)" << endl;
cout << " - Solver type : "
<< vSession->GetSolverInfo("GlobalSysSoln") << endl;
cout << " - Lambda : "
<< factors[StdRegions::eFactorLambda] << endl;
cout << " - No. modes : "
<< bkey0.GetNumModes() << endl;
cout << endl;
}
//----------------------------------------------
//----------------------------------------------
// Define Expansion
Exp = MemoryManager<MultiRegions::DisContField3D>::
AllocateSharedPtr(vSession,graph3D,vSession->GetVariable(0));
//----------------------------------------------
Timing("Read files and define exp ..");
//----------------------------------------------
// Set up coordinates of mesh for Forcing function evaluation
coordim = Exp->GetCoordim(0);
nq = Exp->GetTotPoints();
xc0 = Array<OneD,NekDouble>(nq,0.0);
xc1 = Array<OneD,NekDouble>(nq,0.0);
xc2 = Array<OneD,NekDouble>(nq,0.0);
switch(coordim)
{
case 1:
Exp->GetCoords(xc0);
break;
case 2:
Exp->GetCoords(xc0,xc1);
break;
case 3:
Exp->GetCoords(xc0,xc1,xc2);
break;
}
//----------------------------------------------
//----------------------------------------------
// Define forcing function for first variable defined in file
fce = Array<OneD,NekDouble>(nq);
LibUtilities::EquationSharedPtr ffunc = vSession->GetFunction("Forcing", 0);
ffunc->Evaluate(xc0, xc1, xc2, fce);
//----------------------------------------------
//----------------------------------------------
// Setup expansion containing the forcing function
Fce = MemoryManager<MultiRegions::DisContField3D>::AllocateSharedPtr(*Exp);
Fce->SetPhys(fce);
//----------------------------------------------
Timing("Define forcing ..");
//----------------------------------------------
// Helmholtz solution taking physical forcing
Exp->HelmSolve(Fce->GetPhys(), Exp->UpdateCoeffs(), NullFlagList, factors);
//----------------------------------------------
Timing("Helmholtz Solve ..");
#if 0
for(i = 0; i < 100; ++i)
{
Exp->HelmSolve(Fce->GetPhys(), Exp->UpdateCoeffs(), NullFlagList, factors);
}
Timing("100 Helmholtz Solves:... ");
#endif
//----------------------------------------------
// Backward Transform Solution to get solved values at
Exp->BwdTrans(Exp->GetCoeffs(), Exp->UpdatePhys());
//----------------------------------------------
Timing("Backward Transform ..");
//-----------------------------------------------
// Write solution to file
string out = vSession->GetSessionName() + ".fld";
std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef
= Exp->GetFieldDefinitions();
std::vector<std::vector<NekDouble> > FieldData(FieldDef.size());
for(i = 0; i < FieldDef.size(); ++i)
{
FieldDef[i]->m_fields.push_back("u");
Exp->AppendFieldData(FieldDef[i], FieldData[i]);
}
fld->Write(out, FieldDef, FieldData);
//-----------------------------------------------
//----------------------------------------------
// See if there is an exact solution, if so
// evaluate and plot errors
LibUtilities::EquationSharedPtr ex_sol =
vSession->GetFunction("ExactSolution", 0);
if(ex_sol)
{
//----------------------------------------------
// evaluate exact solution
ex_sol->Evaluate(xc0, xc1, xc2, fce);
//----------------------------------------------
//--------------------------------------------
// Calculate L_inf error
Fce->SetPhys(fce);
Fce->SetPhysState(true);
NekDouble vLinfError = Exp->Linf(Exp->GetPhys(), Fce->GetPhys());
NekDouble vL2Error = Exp->L2 (Exp->GetPhys(), Fce->GetPhys());
NekDouble vH1Error = Exp->H1 (Exp->GetPhys(), Fce->GetPhys());
if (vComm->GetRank() == 0)
{
cout << "L infinity error: " << vLinfError << endl;
cout << "L 2 error : " << vL2Error << endl;
cout << "H 1 error : " << vH1Error << endl;
}
//--------------------------------------------
}
Timing("Output ..");
//----------------------------------------------
vSession->Finalise();
return 0;
}
