void WriteData(Hierarchy & H, Teuchos::Array<int> const &data, std::string const &name) const {
for (int i=0; i<data.size(); ++i) {
std::ostringstream buf; buf << data[i];
std::string fileName = name + "_" + buf.str() + ".m";
if (data[i] < H.GetNumLevels()) {
RCP<Level> L = H.GetLevel(data[i]);
if (L->IsAvailable(name)) {
RCP<T> M = L-> template Get< RCP<T> >(name);
if ( !( M.is_null() ) )
Utils::Write(fileName,*M);
}
}
}
} //WriteData
void WriteData(Hierarchy& H, const Teuchos::Array<int>& data, const std::string& name) const {
for (int i = 0; i < data.size(); ++i) {
std::string fileName = name + "_" + toString(data[i]) + ".m";
if (data[i] < H.GetNumLevels()) {
RCP<Level> L = H.GetLevel(data[i]);
if (L->IsAvailable(name)) {
RCP<T> M = L->template Get< RCP<T> >(name);
if (!M.is_null())
Utils::Write(fileName,* M);
}
}
}
}
void HierarchyUtils<Scalar, LocalOrdinal, GlobalOrdinal, Node>::AddNonSerializableDataToHierarchy(HierarchyManager& HM, Hierarchy& H, const ParameterList& paramList) {
for (ParameterList::ConstIterator it = paramList.begin(); it != paramList.end(); it++) {
const std::string& levelName = it->first;
// Check for mach of the form "level X" where X is a positive integer
if (paramList.isSublist(levelName) && levelName.find("level ") == 0 && levelName.size() > 6) {
int levelID = strtol(levelName.substr(6).c_str(), 0, 0);
if (levelID > 0)
{
// Do enough level adding so we can be sure to add the data to the right place
for (int i = H.GetNumLevels(); i <= levelID; i++)
H.AddNewLevel();
}
RCP<Level> level = H.GetLevel(levelID);
RCP<FactoryManager> M = Teuchos::rcp_dynamic_cast<FactoryManager>(HM.GetFactoryManager(levelID));
TEUCHOS_TEST_FOR_EXCEPTION(M.is_null(), Exceptions::InvalidArgument, "MueLu::Utils::AddNonSerializableDataToHierarchy: cannot get FactoryManager");
// Grab the level sublist & loop over parameters
const ParameterList& levelList = paramList.sublist(levelName);
for (ParameterList::ConstIterator it2 = levelList.begin(); it2 != levelList.end(); it2++) {
const std::string& name = it2->first;
TEUCHOS_TEST_FOR_EXCEPTION(name != "A" && name != "P" && name != "R" &&
name != "Nullspace" && name != "Coordinates" &&
!IsParamMuemexVariable(name), Exceptions::InvalidArgument,
"MueLu::Utils::AddNonSerializableDataToHierarchy: parameter list contains unknown data type");
if (name == "A") {
level->Set(name, Teuchos::getValue<RCP<Matrix > > (it2->second),NoFactory::get());
M->SetFactory(name, NoFactory::getRCP()); // TAW: not sure about this: be aware that this affects all levels
// However, A is accessible through NoFactory anyway, so it should
// be fine here.
}
else if( name == "P" || name == "R") {
level->AddKeepFlag(name,NoFactory::get(),MueLu::UserData);
level->Set(name, Teuchos::getValue<RCP<Matrix > > (it2->second), M->GetFactory(name).get());
}
else if (name == "Nullspace")
{
level->AddKeepFlag(name,NoFactory::get(),MueLu::UserData);
level->Set(name, Teuchos::getValue<RCP<MultiVector > >(it2->second), NoFactory::get());
//M->SetFactory(name, NoFactory::getRCP()); // TAW: generally it is a bad idea to overwrite the factory manager data here
// One should do this only in very special cases
}
else if(name == "Coordinates") //Scalar of Coordinates MV is always double
{
level->AddKeepFlag(name,NoFactory::get(),MueLu::UserData);
level->Set(name, Teuchos::getValue<RCP<Xpetra::MultiVector<double, LocalOrdinal, GlobalOrdinal, Node> > >(it2->second), NoFactory::get());
//M->SetFactory(name, NoFactory::getRCP()); // TAW: generally it is a bad idea to overwrite the factory manager data here
}
#ifdef HAVE_MUELU_MATLAB
else
{
//Custom variable for Muemex
size_t typeNameStart = name.find_first_not_of(' ');
size_t typeNameEnd = name.find(' ', typeNameStart);
std::string typeName = name.substr(typeNameStart, typeNameEnd - typeNameStart);
std::transform(typeName.begin(), typeName.end(), typeName.begin(), ::tolower);
level->AddKeepFlag(name, NoFactory::get(), MueLu::UserData);
if(typeName == "matrix")
level->Set(name, Teuchos::getValue<RCP<Matrix> >(it2->second), NoFactory::get());
else if(typeName == "multivector")
level->Set(name, Teuchos::getValue<RCP<MultiVector> >(it2->second), NoFactory::get());
else if(typeName == "map")
level->Set(name, Teuchos::getValue<RCP<Xpetra::Map<LocalOrdinal, GlobalOrdinal, Node> > >(it2->second), NoFactory::get());
else if(typeName == "ordinalvector")
level->Set(name, Teuchos::getValue<RCP<Xpetra::Vector<LocalOrdinal, LocalOrdinal, GlobalOrdinal, Node> > >(it2->second), NoFactory::get());
else if(typeName == "scalar")
level->Set(name, Teuchos::getValue<Scalar>(it2->second), NoFactory::get());
else if(typeName == "double")
level->Set(name, Teuchos::getValue<double>(it2->second), NoFactory::get());
else if(typeName == "complex")
level->Set(name, Teuchos::getValue<std::complex<double> >(it2->second), NoFactory::get());
else if(typeName == "int")
level->Set(name, Teuchos::getValue<int>(it2->second), NoFactory::get());
else if(typeName == "string")
level->Set(name, Teuchos::getValue<std::string>(it2->second), NoFactory::get());
}
#endif
}
}
}
}
int main_(Teuchos::CommandLineProcessor &clp, Xpetra::UnderlyingLib lib, int argc, char *argv[]) {
#include <MueLu_UseShortNames.hpp>
using Teuchos::RCP;
using Teuchos::rcp;
//
// MPI initialization
//
Teuchos::oblackholestream blackhole;
bool success = false;
bool verbose = true;
try {
RCP< const Teuchos::Comm<int> > comm = Teuchos::DefaultComm<int>::getComm();
//
// Process command line arguments
//
Galeri::Xpetra::Parameters<GO> matrixParameters(clp, 81); // manage parameters of the test case
Xpetra::Parameters xpetraParameters(clp); // manage parameters of xpetra
switch (clp.parse(argc,argv)) {
case Teuchos::CommandLineProcessor::PARSE_HELP_PRINTED: return EXIT_SUCCESS;
case Teuchos::CommandLineProcessor::PARSE_ERROR:
case Teuchos::CommandLineProcessor::PARSE_UNRECOGNIZED_OPTION: return EXIT_FAILURE;
case Teuchos::CommandLineProcessor::PARSE_SUCCESSFUL: break;
default:;
}
if (comm->getRank() == 0) std::cout << xpetraParameters << matrixParameters;
//
// Setup test case (Ax = b)
//
// Distribution
RCP<const Map> map = MapFactory::Build(lib, matrixParameters.GetNumGlobalElements(), 0, comm);
// Matrix
RCP<Galeri::Xpetra::Problem<Map,CrsMatrixWrap,MultiVector> > Pr =
Galeri::Xpetra::BuildProblem<SC, LO, GO, Map, CrsMatrixWrap, MultiVector>(matrixParameters.GetMatrixType(), map, matrixParameters.GetParameterList());
RCP<Matrix> A = Pr->BuildMatrix();
// User defined nullspace
RCP<MultiVector> nullSpace = VectorFactory::Build(map,1); nullSpace->putScalar((SC) 1.0);
// Define B
RCP<Vector> X = VectorFactory::Build(map,1);
RCP<Vector> B = VectorFactory::Build(map,1);
X->setSeed(846930886);
X->randomize();
A->apply(*X, *B, Teuchos::NO_TRANS, (SC)1.0, (SC)0.0);
// X = 0
X->putScalar((SC) 0.0);
//
// Create a multigrid configuration
//
// Transfer operators
RCP<TentativePFactory> TentativePFact = rcp( new TentativePFactory() );
RCP<SaPFactory> SaPFact = rcp( new SaPFactory() );
RCP<TransPFactory> RFact = rcp( new TransPFactory());
FactoryManager M;
M.SetFactory("Ptent", TentativePFact);
M.SetFactory("P", SaPFact);
M.SetFactory("R", RFact);
M.SetFactory("Smoother", Teuchos::null); //skips smoother setup
M.SetFactory("CoarseSolver", Teuchos::null); //skips coarsest solve setup
//
// Multigrid setup phase
//
int startLevel = 0;
int maxLevels = 10;
std::cout << "=============== Setup transfers only ====================" << std::endl;
Hierarchy H;
H.SetDefaultVerbLevel(MueLu::Medium);
RCP<Level> finestLevel = H.GetLevel();
finestLevel->Set("A", A);
finestLevel->Set("Nullspace", nullSpace);
// Indicate which Hierarchy operators we want to keep
H.Keep("P", SaPFact.get()); //SaPFact is the generating factory for P.
H.Keep("R", RFact.get()); //RFact is the generating factory for R.
H.Keep("Ptent", TentativePFact.get()); //SaPFact is the generating factory for P.
H.Setup(M,startLevel,maxLevels);
std::cout << "=============== Setup smoothers only ====================" << std::endl;
// Create a new A.
RCP<Matrix> newA = Pr->BuildMatrix();
finestLevel->Set("A", newA);
// Create Gauss-Seidel smoother.
std::string ifpackType = "RELAXATION";
Teuchos::ParameterList ifpackList;
ifpackList.set("relaxation: sweeps", (LO) 3);
ifpackList.set("relaxation: damping factor", (SC) 1.0);
RCP<SmootherPrototype> smootherPrototype = rcp(new TrilinosSmoother(ifpackType, ifpackList));
M.SetFactory("Smoother", rcp(new SmootherFactory(smootherPrototype)));
// Create coarsest solver.
RCP<SmootherPrototype> coarseSolverPrototype = rcp( new DirectSolver() );
RCP<SmootherFactory> coarseSolverFact = rcp( new SmootherFactory(coarseSolverPrototype, Teuchos::null) );
M.SetFactory("CoarseSolver", coarseSolverFact);
// Note that we pass the number of levels back in.
H.Setup(M,startLevel, H.GetNumLevels());
std::cout << "=============== Solve ====================" << std::endl;
//
// Solve Ax = B
//
LO nIts = 9;
H.Iterate(*B, *X, nIts);
//
// Print relative residual norm
//
typename Teuchos::ScalarTraits<SC>::magnitudeType residualNorms = Utilities::ResidualNorm(*A, *X, *B)[0];
if (comm->getRank() == 0) {
std::ios::fmtflags f(std::cout.flags());
std::cout << "||Residual|| = " << std::setiosflags(std::ios::fixed) << std::setprecision(20) << residualNorms << std::endl;
std::cout.flags(f);
}
success = true;
}
TEUCHOS_STANDARD_CATCH_STATEMENTS(verbose, std::cerr, success);
return ( success ? EXIT_SUCCESS : EXIT_FAILURE );
}
