int main(int argc, char *argv[])
{
// Initialize MPI
#ifdef HAVE_MPI
MPI_Init(&argc,&argv);
#endif
// Create a communicator for Epetra objects
#ifdef HAVE_MPI
Epetra_MpiComm Comm( MPI_COMM_WORLD );
#else
Epetra_SerialComm Comm;
#endif
// Get the process ID and the total number of processors
int MyPID = Comm.MyPID();
int NumProc = Comm.NumProc();
// Check verbosity level
bool verbose = false;
if (argc > 1)
if (argv[1][0]=='-' && argv[1][1]=='v')
verbose = true;
// Get the number of elements from the command line
int NumGlobalElements = 0;
if ((argc > 2) && (verbose))
NumGlobalElements = atoi(argv[2]) + 1;
else if ((argc > 1) && (!verbose))
NumGlobalElements = atoi(argv[1]) + 1;
else
NumGlobalElements = 101;
// The number of unknowns must be at least equal to the
// number of processors.
if (NumGlobalElements < NumProc) {
std::cout << "numGlobalBlocks = " << NumGlobalElements
<< " cannot be < number of processors = " << NumProc << std::endl;
std::cout << "Test failed!" << std::endl;
throw "NOX Error";
}
// Create the interface between NOX and the application
// This object is derived from NOX::Epetra::Interface
Teuchos::RCP<Interface> interface =
Teuchos::rcp(new Interface(NumGlobalElements, Comm));
// Set the PDE factor (for nonlinear forcing term). This could be specified
// via user input.
interface->setPDEfactor(100000.0);
// Use a scaled vector space. The scaling must also be registered
// with the linear solver so the linear system is consistent!
Teuchos::RCP<Epetra_Vector> scaleVec =
Teuchos::rcp(new Epetra_Vector( *(interface->getSolution())));
scaleVec->PutScalar(2.0);
Teuchos::RCP<NOX::Epetra::Scaling> scaling =
Teuchos::rcp(new NOX::Epetra::Scaling);
scaling->addUserScaling(NOX::Epetra::Scaling::Left, scaleVec);
// Use a weighted vector space for scaling all norms
Teuchos::RCP<NOX::Epetra::VectorSpace> weightedVectorSpace =
Teuchos::rcp(new NOX::Epetra::VectorSpaceScaledL2(scaling));
// Get the vector from the Problem
Teuchos::RCP<Epetra_Vector> soln = interface->getSolution();
Teuchos::RCP<NOX::Epetra::Vector> noxSoln =
Teuchos::rcp(new NOX::Epetra::Vector(soln,
NOX::Epetra::Vector::CreateCopy,
NOX::DeepCopy,
weightedVectorSpace));
// Initial Guess
noxSoln->init(2.0);
// Begin Nonlinear Solver ************************************
// Create the top level parameter list
Teuchos::RCP<Teuchos::ParameterList> nlParamsPtr =
Teuchos::rcp(new Teuchos::ParameterList);
Teuchos::ParameterList& nlParams = *(nlParamsPtr.get());
// Set the nonlinear solver method
nlParams.set("Nonlinear Solver", "Inexact Trust Region Based");
nlParams.sublist("Trust Region").
set("Inner Iteration Method", "Inexact Trust Region");
// Set the printing parameters in the "Printing" sublist
Teuchos::ParameterList& printParams = nlParams.sublist("Printing");
// RPP: Commenting this line out. There is now a default for MPI
// specific builds. We are testing that it works here.
// //printParams.set("MyPID", MyPID);
printParams.set("Output Precision", 3);
printParams.set("Output Processor", 0);
if (verbose)
printParams.set("Output Information",
NOX::Utils::OuterIteration +
NOX::Utils::OuterIterationStatusTest +
NOX::Utils::InnerIteration +
NOX::Utils::LinearSolverDetails +
NOX::Utils::Parameters +
NOX::Utils::Details +
NOX::Utils::Warning +
NOX::Utils::Debug +
NOX::Utils::TestDetails +
NOX::Utils::Error);
else
printParams.set("Output Information", NOX::Utils::Error +
NOX::Utils::TestDetails);
// Create a print class for controlling output below
NOX::Utils printing(printParams);
// Sublist for direction
Teuchos::ParameterList& dirParams = nlParams.sublist("Direction");
dirParams.set("Method", "Newton");
Teuchos::ParameterList& newtonParams = dirParams.sublist("Newton");
newtonParams.set("Forcing Term Method", "Type 1");
// Sublist for linear solver for the Newton method
Teuchos::ParameterList& lsParams = newtonParams.sublist("Linear Solver");
lsParams.set("Aztec Solver", "GMRES");
lsParams.set("Max Iterations", 800);
lsParams.set("Tolerance", 1e-4);
// Various Preconditioner options
//lsParams.set("Preconditioner", "AztecOO");
lsParams.set("Preconditioner", "Ifpack");
lsParams.set("Preconditioner Reuse Policy", "Rebuild");
// Sublist for Cauchy direction
Teuchos::ParameterList& cauchyDirParams = nlParams.sublist("Cauchy Direction");
cauchyDirParams.set("Method", "Steepest Descent");
Teuchos::ParameterList& sdParams = cauchyDirParams.sublist("Steepest Descent");
sdParams.set("Scaling Type", "Quadratic Model Min");
// Add a user defined pre/post operator object
Teuchos::RCP<NOX::Abstract::PrePostOperator> ppo =
Teuchos::rcp(new UserPrePostOperator(printing));
nlParams.sublist("Solver Options").set("User Defined Pre/Post Operator",
ppo);
// Let's force all status tests to do a full check
nlParams.sublist("Solver Options").set("Status Test Check Type", "Complete");
// User supplied (Epetra_RowMatrix)
Teuchos::RCP<Epetra_RowMatrix> Analytic = interface->getJacobian();
// Create the linear system
Teuchos::RCP<NOX::Epetra::Interface::Required> iReq = interface;
Teuchos::RCP<NOX::Epetra::Interface::Jacobian> iJac = interface;
Teuchos::RCP<NOX::Epetra::LinearSystemAztecOO> linSys =
Teuchos::rcp(new NOX::Epetra::LinearSystemAztecOO(printParams, lsParams,
iReq,
iJac, Analytic,
*noxSoln,
scaling));
// Create the Group
Teuchos::RCP<NOX::Epetra::Group> grpPtr =
Teuchos::rcp(new NOX::Epetra::Group(printParams,
iReq,
*noxSoln,
linSys));
NOX::Epetra::Group& grp = *grpPtr;
// uncomment the following for loca supergroups
//MF->setGroupForComputeF(*grpPtr);
//FD->setGroupForComputeF(*grpPtr);
// Create the convergence tests
Teuchos::RCP<NOX::StatusTest::NormF> absresid =
Teuchos::rcp(new NOX::StatusTest::NormF(1.0e-8));
Teuchos::RCP<NOX::StatusTest::NormF> relresid =
Teuchos::rcp(new NOX::StatusTest::NormF(grp, 1.0e-2));
Teuchos::RCP<NOX::StatusTest::NormUpdate> update =
Teuchos::rcp(new NOX::StatusTest::NormUpdate(1.0e-5));
Teuchos::RCP<NOX::StatusTest::NormWRMS> wrms =
Teuchos::rcp(new NOX::StatusTest::NormWRMS(1.0e-2, 1.0e-8));
Teuchos::RCP<NOX::StatusTest::Combo> converged =
Teuchos::rcp(new NOX::StatusTest::Combo(NOX::StatusTest::Combo::AND));
converged->addStatusTest(absresid);
converged->addStatusTest(relresid);
converged->addStatusTest(wrms);
converged->addStatusTest(update);
Teuchos::RCP<NOX::StatusTest::MaxIters> maxiters =
Teuchos::rcp(new NOX::StatusTest::MaxIters(200));
Teuchos::RCP<NOX::StatusTest::FiniteValue> fv =
Teuchos::rcp(new NOX::StatusTest::FiniteValue);
Teuchos::RCP<NOX::StatusTest::Combo> combo =
Teuchos::rcp(new NOX::StatusTest::Combo(NOX::StatusTest::Combo::OR));
combo->addStatusTest(fv);
combo->addStatusTest(converged);
combo->addStatusTest(maxiters);
// Create the solver
Teuchos::RCP<NOX::Solver::Generic> solver =
NOX::Solver::buildSolver(grpPtr, combo, nlParamsPtr);
NOX::StatusTest::StatusType solvStatus = solver->solve();
// End Nonlinear Solver **************************************
// Get the Epetra_Vector with the final solution from the solver
const NOX::Epetra::Group& finalGroup =
dynamic_cast<const NOX::Epetra::Group&>(solver->getSolutionGroup());
const Epetra_Vector& finalSolution =
(dynamic_cast<const NOX::Epetra::Vector&>(finalGroup.getX())).
getEpetraVector();
// Output the parameter list
if (verbose) {
if (printing.isPrintType(NOX::Utils::Parameters)) {
printing.out() << std::endl << "Final Parameters" << std::endl
<< "****************" << std::endl;
solver->getList().print(printing.out());
printing.out() << std::endl;
}
}
// Print solution
char file_name[25];
FILE *ifp;
int NumMyElements = soln->Map().NumMyElements();
(void) sprintf(file_name, "output.%d",MyPID);
ifp = fopen(file_name, "w");
for (int i=0; i<NumMyElements; i++)
fprintf(ifp, "%d %E\n", soln->Map().MinMyGID()+i, finalSolution[i]);
fclose(ifp);
// Tests
int status = 0; // Converged
// 1. Convergence
if (solvStatus != NOX::StatusTest::Converged) {
status = 1;
if (printing.isPrintType(NOX::Utils::Error))
printing.out() << "Nonlinear solver failed to converge!" << std::endl;
}
#ifndef HAVE_MPI
// 2. Linear solve iterations (14) - SERIAL TEST ONLY!
// The number of linear iterations changes with # of procs.
if (const_cast<Teuchos::ParameterList&>(solver->getList()).sublist("Direction").sublist("Newton").sublist("Linear Solver").sublist("Output").get("Total Number of Linear Iterations",0) != 14) {
status = 2;
}
#endif
// 3. Nonlinear solve iterations (17)
if (const_cast<Teuchos::ParameterList&>(solver->getList()).sublist("Output").get("Nonlinear Iterations", 0) != 17)
status = 3;
// 4. Test the pre/post iterate options
{
UserPrePostOperator* ppoPtr = dynamic_cast<UserPrePostOperator*>(ppo.get());
if (ppoPtr->getNumRunPreIterate() != 17)
status = 4;
if (ppoPtr->getNumRunPostIterate() != 17)
status = 4;
if (ppoPtr->getNumRunPreSolve() != 1)
status = 4;
if (ppoPtr->getNumRunPostSolve() != 1)
status = 4;
}
// 5. Number of Cauchy steps (3)
if (const_cast<Teuchos::ParameterList&>(solver->getList()).sublist("Trust Region").sublist("Output").get("Number of Cauchy Steps", 0) != 3)
status = 5;
// 6. Number of Newton steps (14)
if (const_cast<Teuchos::ParameterList&>(solver->getList()).sublist("Trust Region").sublist("Output").get("Number of Newton Steps", 0) != 14)
status = 6;
// Summarize test results
if (status == 0)
printing.out() << "Test passed!" << std::endl;
else
printing.out() << "Test failed!" << std::endl;
#ifdef HAVE_MPI
MPI_Finalize();
#endif
// Final return value (0 = successfull, non-zero = failure)
return status;
}
int main(int argc, char *argv[])
{
// Initialize MPI
#ifdef HAVE_MPI
MPI_Init(&argc,&argv);
#endif
// Create a communicator for Epetra objects
#ifdef HAVE_MPI
Epetra_MpiComm Comm( MPI_COMM_WORLD );
#else
Epetra_SerialComm Comm;
#endif
// Get the process ID and the total number of processors
int MyPID = Comm.MyPID();
int NumProc = Comm.NumProc();
// Check verbosity level
bool verbose = false;
if (argc > 1)
if (argv[1][0]=='-' && argv[1][1]=='v')
verbose = true;
// Get the number of elements from the command line
int NumGlobalElements = 0;
if ((argc > 2) && (verbose))
NumGlobalElements = atoi(argv[2]) + 1;
else if ((argc > 1) && (!verbose))
NumGlobalElements = atoi(argv[1]) + 1;
else
NumGlobalElements = 101;
// The number of unknowns must be at least equal to the
// number of processors.
if (NumGlobalElements < NumProc) {
cout << "numGlobalBlocks = " << NumGlobalElements
<< " cannot be < number of processors = " << NumProc << endl;
cout << "Test failed!" << endl;
throw "NOX Error";
}
// Create the interface between NOX and the application
// This object is derived from NOX::Epetra::Interface
Teuchos::RCP<ModelEvaluatorInterface> interface =
Teuchos::rcp(new ModelEvaluatorInterface(NumGlobalElements, Comm));
// Get the vector from the Problem
Teuchos::RCP<Epetra_Vector> soln =
Teuchos::rcp_const_cast<Epetra_Vector>(interface->get_x_init());
Teuchos::RCP<NOX::Epetra::Vector> noxSoln =
Teuchos::rcp(new NOX::Epetra::Vector(soln,
NOX::Epetra::Vector::CreateView));
// Set the PDE factor (for nonlinear forcing term). This could be specified
// via user input.
interface->setPDEfactor(1000.0);
// Begin Nonlinear Solver ************************************
// Create the top level parameter list
Teuchos::RCP<Teuchos::ParameterList> nlParamsPtr =
Teuchos::rcp(new Teuchos::ParameterList);
Teuchos::ParameterList& nlParams = *(nlParamsPtr.get());
// Set the nonlinear solver method
nlParams.set("Nonlinear Solver", "Line Search Based");
// Set the printing parameters in the "Printing" sublist
Teuchos::ParameterList& printParams = nlParams.sublist("Printing");
printParams.set("MyPID", MyPID);
printParams.set("Output Precision", 3);
printParams.set("Output Processor", 0);
if (verbose)
printParams.set("Output Information",
NOX::Utils::OuterIteration +
NOX::Utils::OuterIterationStatusTest +
NOX::Utils::InnerIteration +
NOX::Utils::LinearSolverDetails +
//NOX::Utils::Parameters +
NOX::Utils::Details +
NOX::Utils::Warning +
NOX::Utils::Debug +
NOX::Utils::TestDetails +
NOX::Utils::Error);
else
printParams.set("Output Information", NOX::Utils::Error +
NOX::Utils::TestDetails);
// Create a print class for controlling output below
NOX::Utils printing(printParams);
// Sublist for line search
Teuchos::ParameterList& searchParams = nlParams.sublist("Line Search");
searchParams.set("Method", "Full Step");
// Sublist for direction
Teuchos::ParameterList& dirParams = nlParams.sublist("Direction");
dirParams.set("Method", "Newton");
Teuchos::ParameterList& newtonParams = dirParams.sublist("Newton");
newtonParams.set("Forcing Term Method", "Constant");
// Sublist for linear solver for the Newton method
Teuchos::ParameterList& lsParams = newtonParams.sublist("Linear Solver");
lsParams.set("Aztec Solver", "GMRES");
lsParams.set("Max Iterations", 800);
lsParams.set("Tolerance", 1e-4);
// Various Preconditioner options
//lsParams.set("Preconditioner", "AztecOO");
lsParams.set("Preconditioner", "Ifpack");
lsParams.set("Preconditioner Reuse Policy", "Reuse");
lsParams.set("Max Age Of Prec", 5);
// Add a user defined pre/post operator object
Teuchos::RCP<NOX::Abstract::PrePostOperator> ppo =
Teuchos::rcp(new UserPrePostOperator(printing));
nlParams.sublist("Solver Options").set("User Defined Pre/Post Operator",
ppo);
// Let's force all status tests to do a full check
nlParams.sublist("Solver Options").set("Status Test Check Type", "Complete");
// Wrap the model evaluator in a nox epetra interface object
Teuchos::RCP<NOX::Epetra::ModelEvaluatorInterface> nox_interface =
Teuchos::rcp(new NOX::Epetra::ModelEvaluatorInterface(interface));
// Create all possible Epetra_Operators.
// 1. User supplied (Epetra_RowMatrix)
Teuchos::RCP<Epetra_RowMatrix> Analytic =
Teuchos::rcp_dynamic_cast<Epetra_RowMatrix>(interface->create_W());
// 2. Matrix-Free (Epetra_Operator)
Teuchos::RCP<NOX::Epetra::MatrixFree> MF =
Teuchos::rcp(new NOX::Epetra::MatrixFree(printParams, nox_interface,
*noxSoln));
// 3. Finite Difference (Epetra_RowMatrix)
Teuchos::RCP<NOX::Epetra::FiniteDifference> FD =
Teuchos::rcp(new NOX::Epetra::FiniteDifference(printParams, nox_interface,
*soln));
// Create the linear system
Teuchos::RCP<NOX::Epetra::Interface::Required> iReq = nox_interface;
Teuchos::RCP<NOX::Epetra::Interface::Jacobian> iJac = MF;
Teuchos::RCP<NOX::Epetra::Interface::Preconditioner> iPrec = FD;
Teuchos::RCP<NOX::Epetra::LinearSystemAztecOO> linSys =
Teuchos::rcp(new NOX::Epetra::LinearSystemAztecOO(printParams, lsParams,
//interface,
iJac, MF,
iPrec, FD,
*soln));
// Create the Group
NOX::Epetra::Vector initialGuess(soln, NOX::Epetra::Vector::CreateView);
Teuchos::RCP<NOX::Epetra::Group> grpPtr =
Teuchos::rcp(new NOX::Epetra::Group(printParams,
iReq,
initialGuess,
linSys));
NOX::Epetra::Group& grp = *grpPtr;
// uncomment the following for loca supergroups
//MF->setGroupForComputeF(*grpPtr);
//FD->setGroupForComputeF(*grpPtr);
// Create the convergence tests
Teuchos::RCP<NOX::StatusTest::NormF> absresid =
Teuchos::rcp(new NOX::StatusTest::NormF(1.0e-8));
Teuchos::RCP<NOX::StatusTest::NormF> relresid =
Teuchos::rcp(new NOX::StatusTest::NormF(grp, 1.0e-2));
Teuchos::RCP<NOX::StatusTest::NormUpdate> update =
Teuchos::rcp(new NOX::StatusTest::NormUpdate(1.0e-5));
Teuchos::RCP<NOX::StatusTest::NormWRMS> wrms =
Teuchos::rcp(new NOX::StatusTest::NormWRMS(1.0e-2, 1.0e-8));
Teuchos::RCP<NOX::StatusTest::Combo> converged =
Teuchos::rcp(new NOX::StatusTest::Combo(NOX::StatusTest::Combo::AND));
converged->addStatusTest(absresid);
converged->addStatusTest(relresid);
converged->addStatusTest(wrms);
converged->addStatusTest(update);
Teuchos::RCP<NOX::StatusTest::MaxIters> maxiters =
Teuchos::rcp(new NOX::StatusTest::MaxIters(20));
Teuchos::RCP<NOX::StatusTest::FiniteValue> fv =
Teuchos::rcp(new NOX::StatusTest::FiniteValue);
Teuchos::RCP<NOX::StatusTest::Combo> combo =
Teuchos::rcp(new NOX::StatusTest::Combo(NOX::StatusTest::Combo::OR));
combo->addStatusTest(fv);
combo->addStatusTest(converged);
combo->addStatusTest(maxiters);
// Create the solver
Teuchos::RCP<NOX::Solver::Generic> solver =
NOX::Solver::buildSolver(grpPtr, combo, nlParamsPtr);
NOX::StatusTest::StatusType solvStatus = solver->solve();
// End Nonlinear Solver **************************************
// Get the Epetra_Vector with the final solution from the solver
const NOX::Epetra::Group& finalGroup =
dynamic_cast<const NOX::Epetra::Group&>(solver->getSolutionGroup());
const Epetra_Vector& finalSolution =
(dynamic_cast<const NOX::Epetra::Vector&>(finalGroup.getX())).
getEpetraVector();
// Output the parameter list
// if (verbose) {
// if (printing.isPrintType(NOX::Utils::Parameters)) {
// printing.out() << endl << "Final Parameters" << endl
// << "****************" << endl;
// solver->getList().print(printing.out());
// printing.out() << endl;
// }
// }
// Print solution
char file_name[25];
FILE *ifp;
int NumMyElements = soln->Map().NumMyElements();
(void) sprintf(file_name, "output.%d",MyPID);
ifp = fopen(file_name, "w");
for (int i=0; i<NumMyElements; i++)
fprintf(ifp, "%d %E\n", soln->Map().MinMyGID()+i, finalSolution[i]);
fclose(ifp);
// Tests
int status = 0; // Converged
// 1. Convergence
if (solvStatus != NOX::StatusTest::Converged) {
status = 1;
if (printing.isPrintType(NOX::Utils::Error))
printing.out() << "Nonlinear solver failed to converge!" << endl;
}
#ifndef HAVE_MPI
// 2. Linear solve iterations (53) - SERIAL TEST ONLY!
// The number of linear iterations changes with # of procs.
if (const_cast<Teuchos::ParameterList&>(solver->getList()).sublist("Direction").sublist("Newton").sublist("Linear Solver").sublist("Output").get("Total Number of Linear Iterations",0) != 53) {
status = 2;
}
#endif
// 3. Nonlinear solve iterations (10)
if (const_cast<Teuchos::ParameterList&>(solver->getList()).sublist("Output").get("Nonlinear Iterations", 0) != 10)
status = 3;
// 4. Test the pre/post iterate options
{
UserPrePostOperator* ppoPtr = dynamic_cast<UserPrePostOperator*>(ppo.get());
if (ppoPtr->getNumRunPreIterate() != 10)
status = 4;
if (ppoPtr->getNumRunPostIterate() != 10)
status = 4;
if (ppoPtr->getNumRunPreSolve() != 1)
status = 4;
if (ppoPtr->getNumRunPostSolve() != 1)
status = 4;
}
// Summarize test results
if (status == 0)
printing.out() << "Test passed!" << endl;
else
printing.out() << "Test failed!" << endl;
#ifdef HAVE_MPI
MPI_Finalize();
#endif
// Final return value (0 = successfull, non-zero = failure)
return status;
}
