Piro::SteadyStateSolver<Scalar>::
SteadyStateSolver(
    const Teuchos::RCP<const Thyra::ModelEvaluator<Scalar> > &model,
    int numParameters) :
  model_(model),
  num_p_(numParameters),
  num_g_(model->Ng())
{}
void Piro::RythmosSolver<Scalar>::initialize(
#endif
    const Teuchos::RCP<Teuchos::ParameterList> &appParams,
    const Teuchos::RCP< Thyra::ModelEvaluator<Scalar> > &in_model,
    const Teuchos::RCP<Rythmos::IntegrationObserverBase<Scalar> > &observer)
{

    using Teuchos::ParameterList;
    using Teuchos::parameterList;
    using Teuchos::RCP;
    using Teuchos::rcp;

    // set some internals
    model = in_model;
    num_p = in_model->Np();
    num_g = in_model->Ng();

    //
    *out << "\nA) Get the base parameter list ...\n";
    //


    if (appParams->isSublist("Rythmos")) {
        RCP<Teuchos::ParameterList> rythmosPL = sublist(appParams, "Rythmos", true);
        rythmosPL->validateParameters(*getValidRythmosParameters(),0);

        {
            const std::string verbosity = rythmosPL->get("Verbosity Level", "VERB_DEFAULT");
            if      (verbosity == "VERB_NONE")    solnVerbLevel = Teuchos::VERB_NONE;
            else if (verbosity == "VERB_DEFAULT") solnVerbLevel = Teuchos::VERB_DEFAULT;
            else if (verbosity == "VERB_LOW")     solnVerbLevel = Teuchos::VERB_LOW;
            else if (verbosity == "VERB_MEDIUM")  solnVerbLevel = Teuchos::VERB_MEDIUM;
            else if (verbosity == "VERB_HIGH")    solnVerbLevel = Teuchos::VERB_HIGH;
            else if (verbosity == "VERB_EXTREME") solnVerbLevel = Teuchos::VERB_EXTREME;
            else TEUCHOS_TEST_FOR_EXCEPTION(true, std::logic_error,"Unknown verbosity option specified in Piro_RythmosSolver.");
        }

        t_initial = rythmosPL->get("Initial Time", 0.0);
        t_final = rythmosPL->get("Final Time", 0.1);

        const std::string stepperType = rythmosPL->get("Stepper Type", "Backward Euler");

        //
        *out << "\nC) Create and initalize the forward model ...\n";
        //

        *out << "\nD) Create the stepper and integrator for the forward problem ...\n";
        //

        if (rythmosPL->get<std::string>("Nonlinear Solver Type") == "Rythmos") {
            Teuchos::RCP<Rythmos::TimeStepNonlinearSolver<Scalar> > rythmosTimeStepSolver =
                Rythmos::timeStepNonlinearSolver<Scalar>();
            if (rythmosPL->getEntryPtr("NonLinear Solver")) {
                RCP<Teuchos::ParameterList> nonlinePL =
                    sublist(rythmosPL, "NonLinear Solver", true);
                rythmosTimeStepSolver->setParameterList(nonlinePL);
            }
            fwdTimeStepSolver = rythmosTimeStepSolver;
        }
        else if (rythmosPL->get<std::string>("Nonlinear Solver Type") == "NOX") {
#ifdef HAVE_PIRO_NOX
            Teuchos::RCP<Thyra::NOXNonlinearSolver> nox_solver =  Teuchos::rcp(new Thyra::NOXNonlinearSolver);
            Teuchos::RCP<Teuchos::ParameterList> nox_params = Teuchos::rcp(new Teuchos::ParameterList);
            *nox_params = appParams->sublist("NOX");
            nox_solver->setParameterList(nox_params);
            fwdTimeStepSolver = nox_solver;
#else
            TEUCHOS_TEST_FOR_EXCEPTION(true, std::logic_error,"Requested NOX solver for a Rythmos Transient solve, Trilinos was not built with NOX enabled.  Please rebuild Trilinos or use the native Rythmos nonlinear solver.");
#endif

        }

        if (stepperType == "Backward Euler") {
            fwdStateStepper = Rythmos::backwardEulerStepper<Scalar> (model, fwdTimeStepSolver);
            fwdStateStepper->setParameterList(sublist(rythmosPL, "Rythmos Stepper", true));
        }
        else if (stepperType == "Forward Euler") {
            fwdStateStepper = Rythmos::forwardEulerStepper<Scalar> (model);
            fwdStateStepper->setParameterList(sublist(rythmosPL, "Rythmos Stepper", true));
        }
        else if (stepperType == "Explicit RK") {
            fwdStateStepper = Rythmos::explicitRKStepper<Scalar>(model);
            fwdStateStepper->setParameterList(sublist(rythmosPL, "Rythmos Stepper", true));
        }
        else if (stepperType == "BDF") {
            Teuchos::RCP<Teuchos::ParameterList> BDFparams =
                Teuchos::sublist(rythmosPL, "Rythmos Stepper", true);
            Teuchos::RCP<Teuchos::ParameterList> BDFStepControlPL =
                Teuchos::sublist(BDFparams,"Step Control Settings");

            fwdStateStepper = Teuchos::rcp( new Rythmos::ImplicitBDFStepper<Scalar>(model,fwdTimeStepSolver,BDFparams) );
            fwdStateStepper->setInitialCondition(model->getNominalValues());

        }
        else {
            // first (before failing) check to see if the user has added stepper factory
            typename std::map<std::string,Teuchos::RCP<Piro::RythmosStepperFactory<Scalar> > >::const_iterator
            stepFactItr = stepperFactories.find(stepperType);
            if(stepFactItr!=stepperFactories.end()) {
                // the user has added it, hot dog lets build a new stepper!
                Teuchos::RCP<Teuchos::ParameterList> stepperParams = Teuchos::sublist(rythmosPL, "Rythmos Stepper", true);

                // build the stepper using the factory
                fwdStateStepper = stepFactItr->second->buildStepper(model,fwdTimeStepSolver,stepperParams);

                // the user decided to override the model being used (let them)
                if(fwdStateStepper->getModel()!=model && fwdStateStepper->getModel()!=Teuchos::null) {
                    model = Teuchos::rcp_const_cast<Thyra::ModelEvaluator<Scalar> >(fwdStateStepper->getModel());

                    num_p = in_model->Np();
                    num_g = in_model->Ng();
                }
            }
            else {
                TEUCHOS_TEST_FOR_EXCEPTION(
                    true, Teuchos::Exceptions::InvalidParameter,
                    std::endl << "Error! Piro::RythmosSolver: Invalid Steper Type: "
                    << stepperType << std::endl);
            }
        }

        // Step control strategy
        {
            // If the stepper can accept a step control strategy, then attempt to build one.
            RCP<Rythmos::StepControlStrategyAcceptingStepperBase<Scalar> > scsa_stepper =
                Teuchos::rcp_dynamic_cast<Rythmos::StepControlStrategyAcceptingStepperBase<Scalar> >(fwdStateStepper);

            if (Teuchos::nonnull(scsa_stepper)) {
                const std::string step_control_strategy = rythmosPL->get("Step Control Strategy Type", "None");

                if (step_control_strategy == "None") {
                    // don't do anything, stepper will build default
                } else if (step_control_strategy == "ImplicitBDFRamping") {

                    const RCP<Rythmos::ImplicitBDFStepperRampingStepControl<Scalar> > rscs =
                        rcp(new Rythmos::ImplicitBDFStepperRampingStepControl<Scalar>);

                    const RCP<ParameterList> p = parameterList(rythmosPL->sublist("Rythmos Step Control Strategy"));
                    rscs->setParameterList(p);

                    scsa_stepper->setStepControlStrategy(rscs);
                }
                else {
                    // first (before failing) check to see if the user has added step control factory
                    typename std::map<std::string,Teuchos::RCP<Piro::RythmosStepControlFactory<Scalar> > >::const_iterator
                    stepControlFactItr = stepControlFactories.find(step_control_strategy);
                    if (stepControlFactItr != stepControlFactories.end())
                    {

                        const RCP<Rythmos::StepControlStrategyBase<Scalar> > rscs = stepControlFactItr->second->buildStepControl();

                        const RCP<ParameterList> p = parameterList(rythmosPL -> sublist("Rythmos Step Control Strategy"));

                        rscs->setParameterList(p);

                        scsa_stepper->setStepControlStrategy(rscs);
                    }
                    else {
                        TEUCHOS_TEST_FOR_EXCEPTION(
                            true, std::logic_error,
                            "Error! Piro::RythmosSolver: Invalid step control strategy type: "
                            << step_control_strategy << std::endl);
                    }
                }
            }
        }
        {
            const RCP<Teuchos::ParameterList> integrationControlPL =
                Teuchos::sublist(rythmosPL, "Rythmos Integration Control", true);

            RCP<Rythmos::DefaultIntegrator<Scalar> > defaultIntegrator;
            if (rythmosPL->get("Rythmos Integration Control Strategy", "Simple") == "Simple") {
                defaultIntegrator = Rythmos::controlledDefaultIntegrator<Scalar>(Rythmos::simpleIntegrationControlStrategy<Scalar>(integrationControlPL));
            }
            else if(rythmosPL->get<std::string>("Rythmos Integration Control Strategy") == "Ramping") {
                defaultIntegrator = Rythmos::controlledDefaultIntegrator<Scalar>(Rythmos::rampingIntegrationControlStrategy<Scalar>(integrationControlPL));
            }
            fwdStateIntegrator = defaultIntegrator;
        }

        fwdStateIntegrator->setParameterList(sublist(rythmosPL, "Rythmos Integrator", true));

        if (Teuchos::nonnull(observer)) {
            fwdStateIntegrator->setIntegrationObserver(observer);
        }
    }

    else if (appParams->isSublist("Rythmos Solver")) {
        /** New parameter list format **/
        RCP<Teuchos::ParameterList> rythmosSolverPL = sublist(appParams, "Rythmos Solver", true);
        RCP<Teuchos::ParameterList> rythmosPL = sublist(rythmosSolverPL, "Rythmos", true);

        {
            const std::string verbosity = rythmosSolverPL->get("Verbosity Level", "VERB_DEFAULT");
            if      (verbosity == "VERB_NONE")    solnVerbLevel = Teuchos::VERB_NONE;
            else if (verbosity == "VERB_DEFAULT") solnVerbLevel = Teuchos::VERB_DEFAULT;
            else if (verbosity == "VERB_LOW")     solnVerbLevel = Teuchos::VERB_LOW;
            else if (verbosity == "VERB_MEDIUM")  solnVerbLevel = Teuchos::VERB_MEDIUM;
            else if (verbosity == "VERB_HIGH")    solnVerbLevel = Teuchos::VERB_HIGH;
            else if (verbosity == "VERB_EXTREME") solnVerbLevel = Teuchos::VERB_EXTREME;
            else TEUCHOS_TEST_FOR_EXCEPTION(true, std::logic_error,
                                                "Unknown verbosity option specified in Piro_RythmosSolver.");
        }

        t_initial = rythmosPL->sublist("Integrator Settings").get("Initial Time", 0.0);
        t_final = rythmosPL->sublist("Integrator Settings").get("Final Time", 0.1);

        const std::string stepperType = rythmosPL->sublist("Stepper Settings")
                                        .sublist("Stepper Selection").get("Stepper Type", "Backward Euler");
        //
        //    *out << "\nB) Create the Stratimikos linear solver factory ...\n";
        //
        // This is the linear solve strategy that will be used to solve for the
        // linear system with the W.
        //
        Stratimikos::DefaultLinearSolverBuilder linearSolverBuilder;

#ifdef HAVE_PIRO_IFPACK2
        typedef Thyra::PreconditionerFactoryBase<double> Base;
#ifdef ALBANY_BUILD
        typedef Thyra::Ifpack2PreconditionerFactory<Tpetra::CrsMatrix<double, LocalOrdinal, GlobalOrdinal, Node> > Impl;
#else
        typedef Thyra::Ifpack2PreconditionerFactory<Tpetra::CrsMatrix<double> > Impl;
#endif
        linearSolverBuilder.setPreconditioningStrategyFactory(Teuchos::abstractFactoryStd<Base, Impl>(), "Ifpack2");
#endif
#ifdef HAVE_PIRO_MUELU
#ifdef ALBANY_BUILD
        Stratimikos::enableMueLu<LocalOrdinal, GlobalOrdinal, Node>(linearSolverBuilder);
#else
        Stratimikos::enableMueLu(linearSolverBuilder);
#endif
#endif

        linearSolverBuilder.setParameterList(sublist(rythmosSolverPL, "Stratimikos", true));
        rythmosSolverPL->validateParameters(*getValidRythmosSolverParameters(),0);
        RCP<Thyra::LinearOpWithSolveFactoryBase<double> > lowsFactory =
            createLinearSolveStrategy(linearSolverBuilder);
        //
        *out << "\nC) Create and initalize the forward model ...\n";
        //
        // C.1) Create the underlying EpetraExt::ModelEvaluator
        // already constructed as "model". Decorate if needed.
        // TODO: Generelize to any explicit method, option to invert mass matrix
        if (stepperType == "Explicit RK") {
            if (rythmosSolverPL->get("Invert Mass Matrix", false)) {
                Teuchos::RCP<Thyra::ModelEvaluator<Scalar> > origModel = model;
                rythmosSolverPL->get("Lump Mass Matrix", false);  //JF line does not do anything
                model = Teuchos::rcp(new Piro::InvertMassMatrixDecorator<Scalar>(
                                         sublist(rythmosSolverPL,"Stratimikos", true), origModel,
                                         true,rythmosSolverPL->get("Lump Mass Matrix", false),false));
            }
        }
        // C.2) Create the Thyra-wrapped ModelEvaluator

        thyraModel = rcp(new Thyra::DefaultModelEvaluatorWithSolveFactory<Scalar>(model, lowsFactory));

        const RCP<const Thyra::VectorSpaceBase<double> > x_space =
            thyraModel->get_x_space();

        //
        *out << "\nD) Create the stepper and integrator for the forward problem ...\n";
        //
        fwdTimeStepSolver = Rythmos::timeStepNonlinearSolver<double>();

        if (rythmosSolverPL->getEntryPtr("NonLinear Solver")) {
            const RCP<Teuchos::ParameterList> nonlinePL =
                sublist(rythmosSolverPL, "NonLinear Solver", true);
            fwdTimeStepSolver->setParameterList(nonlinePL);
        }
        // Force Default Integrator since this is needed for Observers
        rythmosPL->sublist("Integrator Settings").sublist("Integrator Selection").
        set("Integrator Type","Default Integrator");

        RCP<Rythmos::IntegratorBuilder<double> > ib = Rythmos::integratorBuilder<double>();
        ib->setParameterList(rythmosPL);
        Thyra::ModelEvaluatorBase::InArgs<double> ic = thyraModel->getNominalValues();
        RCP<Rythmos::IntegratorBase<double> > integrator = ib->create(thyraModel,ic,fwdTimeStepSolver);
        fwdStateIntegrator = Teuchos::rcp_dynamic_cast<Rythmos::DefaultIntegrator<double> >(integrator,true);

        fwdStateStepper = fwdStateIntegrator->getNonconstStepper();

        if (Teuchos::nonnull(observer))
            fwdStateIntegrator->setIntegrationObserver(observer);

    }
    else {
        TEUCHOS_TEST_FOR_EXCEPTION(
            appParams->isSublist("Rythmos") || appParams->isSublist("Rythmos Solver"),
            Teuchos::Exceptions::InvalidParameter, std::endl <<
            "Error! Piro::RythmosSolver: must have either Rythmos or Rythmos Solver sublist ");

    }

    isInitialized = true;
}
Exemplo n.º 3
0
// The solve is done in the felix_driver_run function, and the solution is passed back to Glimmer-CISM 
// IK, 12/3/13: time_inc_yr and cur_time_yr are not used here... 
void felix_driver_run(FelixToGlimmer * ftg_ptr, double& cur_time_yr, double time_inc_yr)
{
    //IK, 12/9/13: how come FancyOStream prints an all processors??    
    Teuchos::RCP<Teuchos::FancyOStream> out(Teuchos::VerboseObjectBase::getDefaultOStream());

    if (debug_output_verbosity != 0 & mpiCommT->getRank() == 0) {
      std::cout << "In felix_driver_run, cur_time, time_inc = " << cur_time_yr 
                << "   " << time_inc_yr << std::endl;
    }
    
    // ---------------------------------------------
    // get u and v velocity solution from Glimmer-CISM 
    // IK, 11/26/13: need to concatenate these into a single solve for initial condition for Albany/FELIX solve 
    // IK, 3/14/14: moved this step to felix_driver_run from felix_driver init, since we still want to grab and u and v velocities for CISM if the mesh hasn't changed, 
    // in which case only felix_driver_run will be called, not felix_driver_init.   
    // ---------------------------------------------
    if (debug_output_verbosity != 0 & mpiCommT->getRank() == 0) 
      std::cout << "In felix_driver_run: grabbing pointers to u and v velocities in CISM..." << std::endl; 
    uVel_ptr = ftg_ptr ->getDoubleVar("uvel", "velocity"); 
    vVel_ptr = ftg_ptr ->getDoubleVar("vvel", "velocity"); 

    // ---------------------------------------------
    // Set restart solution to the one passed from CISM
    // IK, 3/14/14: moved this from felix_driver_init to felix_driver_run.  
    // ---------------------------------------------
    
    if (debug_output_verbosity != 0 & mpiCommT->getRank() == 0) 
      std::cout << "In felix_driver_run: setting initial condition from CISM..." << std::endl;
    //Check what kind of ordering you have in the solution & create solutionField object.
    interleavedOrdering = meshStruct->getInterleavedOrdering();
    Albany::AbstractSTKFieldContainer::VectorFieldType* solutionField;
    if(interleavedOrdering)
      solutionField = Teuchos::rcp_dynamic_cast<Albany::OrdinarySTKFieldContainer<true> >(meshStruct->getFieldContainer())->getSolutionField();
    else
      solutionField = Teuchos::rcp_dynamic_cast<Albany::OrdinarySTKFieldContainer<false> >(meshStruct->getFieldContainer())->getSolutionField();

     //Create vector used to renumber nodes on each processor from the Albany convention (horizontal levels first) to the CISM convention (vertical layers first)
     nNodes2D = (global_ewn + 1)*(global_nsn+1); //number global nodes in the domain in 2D 
     nNodesProc2D = (nsn-2*nhalo+1)*(ewn-2*nhalo+1); //number of nodes on each processor in 2D  
     cismToAlbanyNodeNumberMap.resize(upn*nNodesProc2D);
     for (int j=0; j<nsn-2*nhalo+1;j++) { 
       for (int i=0; i<ewn-2*nhalo+1; i++) {
         for (int k=0; k<upn; k++) { 
           int index = k+upn*i + j*(ewn-2*nhalo+1)*upn; 
           cismToAlbanyNodeNumberMap[index] = k*nNodes2D + global_node_id_owned_map_Ptr[i+j*(ewn-2*nhalo+1)]; 
           //if (mpiComm->MyPID() == 0) 
           //  std::cout << "index: " << index << ", cismToAlbanyNodeNumberMap: " << cismToAlbanyNodeNumberMap[index] << std::endl; 
          }
        }
      }

     //The way it worked out, uVel_ptr and vVel_ptr have more nodes than the nodes in the mesh passed to Albany/CISM for the solve.  In particular, 
     //there is 1 row of halo elements in uVel_ptr and vVel_ptr.  To account for this, we copy uVel_ptr and vVel_ptr into std::vectors, which do not have the halo elements. 
     std::vector<double> uvel_vec(upn*nNodesProc2D); 
     std::vector<double> vvel_vec(upn*nNodesProc2D); 
     int counter1 = 0; 
     int counter2 = 0; 
     int local_nodeID; 
     for (int j=0; j<nsn-1; j++) {
       for (int i=0; i<ewn-1; i++) { 
         for (int k=0; k<upn; k++) {
           if (j >= nhalo-1 & j < nsn-nhalo) {
             if (i >= nhalo-1 & i < ewn-nhalo) {
#ifdef CISM_USE_EPETRA 
               local_nodeID = node_map->LID(cismToAlbanyNodeNumberMap[counter1]); 
#else
               local_nodeID = node_map->getLocalElement(cismToAlbanyNodeNumberMap[counter1]);
#endif
               uvel_vec[counter1] = uVel_ptr[counter2]; 
               vvel_vec[counter1] = vVel_ptr[counter2]; 
               counter1++;
            }
            }
            counter2++; 
         }
        }
     }
     //Loop over all the elements to find which nodes are active.  For the active nodes, copy uvel and vvel from CISM into Albany solution array to 
     //use as initial condition.
     //NOTE: there is some inefficiency here by looping over all the elements.  TO DO? pass only active nodes from Albany-CISM to improve this? 
     double velScale = seconds_per_year*vel_scaling_param;  
     for (int i=0; i<nElementsActive; i++) {
       for (int j=0; j<8; j++) {
        int node_GID =  global_element_conn_active_Ptr[i + nElementsActive*j]; //node_GID is 1-based
#ifdef CISM_USE_EPETRA      
        int node_LID =  node_map->LID(node_GID); //node_LID is 0-based
#else
        int node_LID =  node_map->getLocalElement(node_GID); //node_LID is 0-based
#endif
        stk::mesh::Entity node = meshStruct->bulkData->get_entity(stk::topology::NODE_RANK, node_GID);
        double* sol = stk::mesh::field_data(*solutionField, node);
        //IK, 3/18/14: added division by velScale to convert uvel and vvel from dimensionless to having units of m/year (the Albany units)  
        sol[0] = uvel_vec[node_LID]/velScale;
        sol[1] = vvel_vec[node_LID]/velScale;
      }
    }
    // ---------------------------------------------------------------------------------------------------
    // Solve 
    // ---------------------------------------------------------------------------------------------------

    if (debug_output_verbosity != 0 & mpiCommT->getRank() == 0) 
      std::cout << "In felix_driver_run: starting the solve... " << std::endl;
    //Need to set HasRestart solution such that uvel_Ptr and vvel_Ptr (u and v from Glimmer/CISM) are always set as initial condition?  
    meshStruct->setHasRestartSolution(!first_time_step);


    //Turn off homotopy if we're not in the first time-step. 
    //NOTE - IMPORTANT: Glen's Law Homotopy parameter should be set to 1.0 in the parameter list for this logic to work!!! 
    if (!first_time_step)
    {
       meshStruct->setRestartDataTime(parameterList->sublist("Problem").get("Homotopy Restart Step", 1.));
       double homotopy = parameterList->sublist("Problem").sublist("FELIX Viscosity").get("Glen's Law Homotopy Parameter", 1.0);
       if(meshStruct->restartDataTime()== homotopy) {
         parameterList->sublist("Problem").set("Solution Method", "Steady");
         parameterList->sublist("Piro").set("Solver Type", "NOX");
       }
    }

    albanyApp->createDiscretization();

    //IK, 10/30/14: Check that # of elements from previous time step hasn't changed. 
    //If it has not, use previous solution as initial guess for current time step.
    //Otherwise do not set initial solution.  It's possible this can be improved so some part of the previous solution is used
    //defined on the current mesh (if it receded, which likely it will in dynamic ice sheet simulations...). 
    if (nElementsActivePrevious != nElementsActive) previousSolution = Teuchos::null; 
    albanyApp->finalSetUp(parameterList, previousSolution);

    //if (!first_time_step) 
    //  std::cout << "previousSolution: " << *previousSolution << std::endl;
#ifdef CISM_USE_EPETRA 
    solver = slvrfctry->createThyraSolverAndGetAlbanyApp(albanyApp, mpiComm, mpiComm, Teuchos::null, false);
#else
   solver = slvrfctry->createAndGetAlbanyAppT(albanyApp, mpiCommT, mpiCommT, Teuchos::null, false);
#endif

    Teuchos::ParameterList solveParams;
    solveParams.set("Compute Sensitivities", true);
    Teuchos::Array<Teuchos::RCP<const Thyra::VectorBase<double> > > thyraResponses;
    Teuchos::Array<Teuchos::Array<Teuchos::RCP<const Thyra::MultiVectorBase<double> > > > thyraSensitivities;
    Piro::PerformSolveBase(*solver, solveParams, thyraResponses, thyraSensitivities);

#ifdef CISM_USE_EPETRA
    const Epetra_Map& ownedMap(*albanyApp->getDiscretization()->getMap()); //owned map
    const Epetra_Map& overlapMap(*albanyApp->getDiscretization()->getOverlapMap()); //overlap map
    Epetra_Import import(overlapMap, ownedMap); //importer from ownedMap to overlapMap
    Epetra_Vector solutionOverlap(overlapMap); //overlapped solution
    solutionOverlap.Import(*albanyApp->getDiscretization()->getSolutionField(), import, Insert);
#else 
    Teuchos::RCP<const Tpetra_Map> ownedMap = albanyApp->getDiscretization()->getMapT(); //owned map
    Teuchos::RCP<const Tpetra_Map> overlapMap = albanyApp->getDiscretization()->getOverlapMapT(); //overlap map
    Teuchos::RCP<Tpetra_Import> import = Teuchos::rcp(new Tpetra_Import(ownedMap, overlapMap));
    Teuchos::RCP<Tpetra_Vector> solutionOverlap = Teuchos::rcp(new Tpetra_Vector(overlapMap));
    solutionOverlap->doImport(*albanyApp->getDiscretization()->getSolutionFieldT(), *import, Tpetra::INSERT);
    Teuchos::ArrayRCP<const ST> solutionOverlap_constView = solutionOverlap->get1dView();
#endif

#ifdef WRITE_TO_MATRIX_MARKET
#ifdef CISM_USE_EPETRA
    //For debug: write solution and maps to matrix market file
    EpetraExt::BlockMapToMatrixMarketFile("node_map.mm", *node_map);
    EpetraExt::BlockMapToMatrixMarketFile("map.mm", ownedMap);
    EpetraExt::BlockMapToMatrixMarketFile("overlap_map.mm", overlapMap);
    EpetraExt::MultiVectorToMatrixMarketFile("solution.mm", *albanyApp->getDiscretization()->getSolutionField());
#else 
    Tpetra_MatrixMarket_Writer::writeMapFile("node_map.mm", *node_map);
    Tpetra_MatrixMarket_Writer::writeMapFile("map.mm", *ownedMap);
    Tpetra_MatrixMarket_Writer::writeMapFile("overlap_map.mm", *overlapMap);
    Tpetra_MatrixMarket_Writer::writeDenseFile("solution.mm", app->getDiscretization()->getSolutionFieldT());
#endif
#endif
   
   //set previousSolution (used as initial guess for next time step) to final Albany solution. 
   previousSolution = Teuchos::rcp(new Tpetra_Vector(*albanyApp->getDiscretization()->getSolutionFieldT())); 
   nElementsActivePrevious = nElementsActive;   
 
   //std::cout << "Final solution: " << *albanyApp->getDiscretization()->getSolutionField() << std::endl;  
    // ---------------------------------------------------------------------------------------------------
    // Compute sensitivies / responses and perform regression tests
    // IK, 12/9/13: how come this is turned off in mpas branch? 
    // ---------------------------------------------------------------------------------------------------
 
    if (debug_output_verbosity != 0 & mpiCommT->getRank() == 0) 
      std::cout << "Computing responses and sensitivities..." << std::endl;
    int status=0; // 0 = pass, failures are incremented
#ifdef CISM_USE_EPETRA
    Teuchos::Array<Teuchos::RCP<const Epetra_Vector> > responses;
    Teuchos::Array<Teuchos::Array<Teuchos::RCP<const Epetra_MultiVector> > > sensitivities;
    epetraFromThyra(mpiComm, thyraResponses, thyraSensitivities, responses, sensitivities);
#else
    Teuchos::Array<Teuchos::RCP<const Tpetra_Vector> > responses;
    Teuchos::Array<Teuchos::Array<Teuchos::RCP<const Tpetra_MultiVector> > > sensitivities;
    tpetraFromThyra(thyraResponses, thyraSensitivities, responses, sensitivities);
#endif

    const int num_p = solver->Np(); // Number of *vectors* of parameters
    const int num_g = solver->Ng(); // Number of *vectors* of responses

   if (debug_output_verbosity != 0) {
    *out << "Finished eval of first model: Params, Responses "
      << std::setprecision(12) << std::endl;
   }
   const Thyra::ModelEvaluatorBase::InArgs<double> nominal = solver->getNominalValues();

   if (debug_output_verbosity != 0) {
    for (int i=0; i<num_p; i++) {
#ifdef CISM_USE_EPETRA
      const Teuchos::RCP<const Epetra_Vector> p_init = epetraVectorFromThyra(mpiComm, nominal.get_p(i));
      p_init->Print(*out << "\nParameter vector " << i << ":\n");
#else
      Albany::printTpetraVector(*out << "\nParameter vector " << i << ":\n",
           ConverterT::getConstTpetraVector(nominal.get_p(i)));
#endif
    }
   }

    for (int i=0; i<num_g-1; i++) {
#ifdef CISM_USE_EPETRA
      const Teuchos::RCP<const Epetra_Vector> g = responses[i];
#else
      const Teuchos::RCP<const Tpetra_Vector> g = responses[i];
#endif
      bool is_scalar = true;

      if (albanyApp != Teuchos::null)
        is_scalar = albanyApp->getResponse(i)->isScalarResponse();

      if (is_scalar) {
        if (debug_output_verbosity != 0) {
#ifdef CISM_USE_EPETRA
         g->Print(*out << "\nResponse vector " << i << ":\n");
#else
         Albany::printTpetraVector(*out << "\nResponse vector " << i << ":\n", g);
#endif
        }

        if (num_p == 0 && cur_time_yr == final_time) {
          // Just calculate regression data -- only if in final time step
#ifdef CISM_USE_EPETRA
          status += slvrfctry->checkSolveTestResults(i, 0, g.get(), NULL);
#else
          status += slvrfctry->checkSolveTestResultsT(i, 0, g.get(), NULL);
#endif
        } else {
          for (int j=0; j<num_p; j++) {
#ifdef CISM_USE_EPETRA
            const Teuchos::RCP<const Epetra_MultiVector> dgdp = sensitivities[i][j];
#else
            const Teuchos::RCP<const Tpetra_MultiVector> dgdp = sensitivities[i][j];
#endif
            if (debug_output_verbosity != 0) {
              if (Teuchos::nonnull(dgdp)) {
#ifdef CISM_USE_EPETRA
                dgdp->Print(*out << "\nSensitivities (" << i << "," << j << "):!\n");
#else
                Albany::printTpetraVector(*out << "\nSensitivities (" << i << "," << j << "):!\n", dgdp);
#endif
              }
            }
            if (cur_time_yr == final_time) {
#ifdef CISM_USE_EPETRA
              status += slvrfctry->checkSolveTestResults(i, j, g.get(), dgdp.get());
#else
              status += slvrfctry->checkSolveTestResultsT(i, j, g.get(), dgdp.get());
#endif
            }
          }
        }
      }
    }
    if (debug_output_verbosity != 0 && cur_time_yr == final_time) //only print regression test result if you're in the final time step 
      *out << "\nNumber of Failed Comparisons: " << status << std::endl;
    //IK, 10/30/14: added the following line so that when you run ctest from CISM the test fails if there are some failed comparisons.
    if (status > 0)     
      TEUCHOS_TEST_FOR_EXCEPTION(true, std::logic_error, "All regression comparisons did not pass!" << std::endl);

    // ---------------------------------------------------------------------------------------------------
    // Copy solution back to glimmer uvel and vvel arrays to be passed back
    // ---------------------------------------------------------------------------------------------------

    //std::cout << "overlapMap # global elements: " << overlapMap.NumGlobalElements() << std::endl; 
    //std::cout << "overlapMap # my elements: " << overlapMap.NumMyElements() << std::endl; 
    //std::cout << "overlapMap: " << overlapMap << std::endl; 
    //std::cout << "map # global elements: " << ownedMap.NumGlobalElements() << std::endl; 
    //std::cout << "map # my elements: " << ownedMap.NumMyElements() << std::endl; 
    //std::cout << "node_map # global elements: " << node_map->NumGlobalElements() << std::endl; 
    //std::cout << "node_map # my elements: " << node_map->NumMyElements() << std::endl; 
    //std::cout << "node_map: " << *node_map << std::endl; 

    if (debug_output_verbosity != 0 & mpiCommT->getRank() == 0) 
      std::cout << "In felix_driver_run: copying Albany solution to uvel and vvel to send back to CISM... " << std::endl;
#ifdef CISM_USE_EPETRA 
    //Epetra_Vectors to hold uvel and vvel to be passed to Glimmer/CISM
    Epetra_Vector uvel(*node_map, true); 
    Epetra_Vector vvel(*node_map, true);
#else
    //Tpetra_Vectors to hold uvel and vvel to be passed to Glimmer/CISM
    Teuchos::RCP<Tpetra_Vector> uvel = Teuchos::rcp(new Tpetra_Vector(node_map, true));
    Teuchos::RCP<Tpetra_Vector> vvel = Teuchos::rcp(new Tpetra_Vector(node_map, true));
#endif

#ifdef CISM_USE_EPETRA 
    if (interleavedOrdering == true) { 
      for (int i=0; i<overlapMap.NumMyElements(); i++) { 
        int global_dof = overlapMap.GID(i);
        double sol_value = solutionOverlap[i];  
        int modulo = (global_dof % 2); //check if dof is for u or for v 
        int vel_global_dof, vel_local_dof; 
        if (modulo == 0) { //u dof 
          vel_global_dof = global_dof/2+1; //add 1 because node_map is 1-based 
          vel_local_dof = node_map->LID(vel_global_dof); //look up local id corresponding to global id in node_map
          //std::cout << "uvel: global_dof = " << global_dof << ", uvel_global_dof = " << vel_global_dof << ", uvel_local_dof = " << vel_local_dof << std::endl; 
          uvel.ReplaceMyValues(1, &sol_value, &vel_local_dof); 
        }
        else { // v dof 
          vel_global_dof = (global_dof-1)/2+1; //add 1 because node_map is 1-based 
          vel_local_dof = node_map->LID(vel_global_dof); //look up local id corresponding to global id in node_map
          vvel.ReplaceMyValues(1, &sol_value, & vel_local_dof); 
        }
      }
    }
    else { //note: the case with non-interleaved ordering has not been tested...
      int numDofs = overlapMap.NumGlobalElements(); 
      for (int i=0; i<overlapMap.NumMyElements(); i++) { 
        int global_dof = overlapMap.GID(i);
        double sol_value = solutionOverlap[i];  
        int vel_global_dof, vel_local_dof; 
        if (global_dof < numDofs/2) { //u dof
          vel_global_dof = global_dof+1; //add 1 because node_map is 1-based 
          vel_local_dof = node_map->LID(vel_global_dof); //look up local id corresponding to global id in node_map
          uvel.ReplaceMyValues(1, &sol_value, &vel_local_dof); 
        }
        else { //v dofs 
          vel_global_dof = global_dof-numDofs/2+1; //add 1 because node_map is 1-based
          vel_local_dof = node_map->LID(vel_global_dof); //look up local id corresponding to global id in node_map
          vvel.ReplaceMyValues(1, &sol_value, & vel_local_dof);
        } 
      }
    }
#else
    if (interleavedOrdering == true) {
      for (int i=0; i<overlapMap->getNodeNumElements(); i++) {
        int global_dof = overlapMap->getGlobalElement(i);
        double sol_value = solutionOverlap_constView[i];
        int modulo = (global_dof % 2); //check if dof is for u or for v 
        int vel_global_dof, vel_local_dof;
        if (modulo == 0) { //u dof 
          vel_global_dof = global_dof/2+1; //add 1 because node_map is 1-based 
          vel_local_dof = node_map->getLocalElement(vel_global_dof); //look up local id corresponding to global id in node_map
          //std::cout << "uvel: global_dof = " << global_dof << ", uvel_global_dof = " << vel_global_dof << ", uvel_local_dof = " << vel_local_dof << std::endl; 
          uvel->replaceLocalValue(vel_local_dof, sol_value);
        }
        else { // v dof 
          vel_global_dof = (global_dof-1)/2+1; //add 1 because node_map is 1-based 
          vel_local_dof = node_map->getLocalElement(vel_global_dof); //look up local id corresponding to global id in node_map
          vvel->replaceLocalValue(vel_local_dof, sol_value);
        }
      }
    }
    else { //note: the case with non-interleaved ordering has not been tested...
      int numDofs = overlapMap->getGlobalNumElements();
      for (int i=0; i<overlapMap->getNodeNumElements(); i++) {
        int global_dof = overlapMap->getGlobalElement(i);
        double sol_value = solutionOverlap_constView[i];
        int vel_global_dof, vel_local_dof;
        if (global_dof < numDofs/2) { //u dof
          vel_global_dof = global_dof+1; //add 1 because node_map is 1-based 
          vel_local_dof = node_map->getLocalElement(vel_global_dof); //look up local id corresponding to global id in node_map
          uvel->replaceLocalValue(vel_local_dof, sol_value);
        }
        else { //v dofs 
          vel_global_dof = global_dof-numDofs/2+1; //add 1 because node_map is 1-based
          vel_local_dof = node_map->getLocalElement(vel_global_dof); //look up local id corresponding to global id in node_map
          vvel->replaceLocalValue(vel_local_dof, sol_value);
        }
      }
    }
#endif
 

#ifdef WRITE_TO_MATRIX_MARKET
    //For debug: write solution to matrix market file 
#ifdef CISM_USE_EPETRA
     EpetraExt::MultiVectorToMatrixMarketFile("uvel.mm", uvel); 
     EpetraExt::MultiVectorToMatrixMarketFile("vvel.mm", vvel);
#else
     Tpetra_MatrixMarket_Writer::writeDenseFile("uvel.mm", uvel);
     Tpetra_MatrixMarket_Writer::writeDenseFile("vvel.mm", vvel);
#endif
#endif
 
     //Copy uvel and vvel into uVel_ptr and vVel_ptr respectively (the arrays passed back to CISM) according to the numbering consistent w/ CISM. 
     counter1 = 0; 
     counter2 = 0;
#ifdef CISM_USE_EPETRA
#else
     Teuchos::ArrayRCP<const ST> uvel_constView = uvel->get1dView();
     Teuchos::ArrayRCP<const ST> vvel_constView = vvel->get1dView();
#endif 
     local_nodeID = 0;  
     for (int j=0; j<nsn-1; j++) {
       for (int i=0; i<ewn-1; i++) { 
         for (int k=0; k<upn; k++) {
           if (j >= nhalo-1 & j < nsn-nhalo) {
             if (i >= nhalo-1 & i < ewn-nhalo) {
#ifdef CISM_USE_EPETRA 
               local_nodeID = node_map->LID(cismToAlbanyNodeNumberMap[counter1]); 
               //if (mpiComm->MyPID() == 0) 
               //std::cout << "counter1:" << counter1 << ", cismToAlbanyNodeNumberMap[counter1]: " << cismToAlbanyNodeNumberMap[counter1] << ", local_nodeID: " 
               //<< local_nodeID << ", uvel: " << uvel[local_nodeID] << std::endl; //uvel[local_nodeID] << std::endl;  
               uVel_ptr[counter2] = uvel[local_nodeID];
               vVel_ptr[counter2] = vvel[local_nodeID];  
#else
               local_nodeID = node_map->getLocalElement(cismToAlbanyNodeNumberMap[counter1]);
               uVel_ptr[counter2] = uvel_constView[local_nodeID];
               vVel_ptr[counter2] = vvel_constView[local_nodeID];
#endif
               counter1++;
            }
            }
            else {
             uVel_ptr[counter2] = 0.0; 
             vVel_ptr[counter2] = 0.0; 
            }
            counter2++; 
         }
        }
      }
    


    first_time_step = false;
}
Exemplo n.º 4
0
void Piro::RythmosSolver<Scalar>::initialize(
    const Teuchos::RCP<Teuchos::ParameterList> &appParams,
    const Teuchos::RCP< Thyra::ModelEvaluator<Scalar> > &in_model,
    const Teuchos::RCP<Rythmos::IntegrationObserverBase<Scalar> > &observer)
{
  using Teuchos::ParameterList;
  using Teuchos::parameterList;
  using Teuchos::RCP;
  using Teuchos::rcp;

  // set some internals
  model = in_model;
  num_p = in_model->Np();
  num_g = in_model->Ng();

  //
  *out << "\nA) Get the base parameter list ...\n";
  //

  RCP<Teuchos::ParameterList> rythmosPL = sublist(appParams, "Rythmos", true);
  rythmosPL->validateParameters(*getValidRythmosParameters(),0);

  {
    const std::string verbosity = rythmosPL->get("Verbosity Level", "VERB_DEFAULT");
    if      (verbosity == "VERB_NONE")    solnVerbLevel = Teuchos::VERB_NONE;
    else if (verbosity == "VERB_DEFAULT") solnVerbLevel = Teuchos::VERB_DEFAULT;
    else if (verbosity == "VERB_LOW")     solnVerbLevel = Teuchos::VERB_LOW;
    else if (verbosity == "VERB_MEDIUM")  solnVerbLevel = Teuchos::VERB_MEDIUM;
    else if (verbosity == "VERB_HIGH")    solnVerbLevel = Teuchos::VERB_HIGH;
    else if (verbosity == "VERB_EXTREME") solnVerbLevel = Teuchos::VERB_EXTREME;
    else TEUCHOS_TEST_FOR_EXCEPTION(true, std::logic_error,"Unknown verbosity option specified in Piro_RythmosSolver.");
  }

  t_initial = rythmosPL->get("Initial Time", 0.0);
  t_final = rythmosPL->get("Final Time", 0.1);

  const std::string stepperType = rythmosPL->get("Stepper Type", "Backward Euler");

  //
  *out << "\nC) Create and initalize the forward model ...\n";
  //

  *out << "\nD) Create the stepper and integrator for the forward problem ...\n";
  //

  if (rythmosPL->get<std::string>("Nonlinear Solver Type") == "Rythmos") {
    Teuchos::RCP<Rythmos::TimeStepNonlinearSolver<Scalar> > rythmosTimeStepSolver =
      Rythmos::timeStepNonlinearSolver<Scalar>();
    if (rythmosPL->getEntryPtr("NonLinear Solver")) {
      RCP<Teuchos::ParameterList> nonlinePL =
	sublist(rythmosPL, "NonLinear Solver", true);
      rythmosTimeStepSolver->setParameterList(nonlinePL);
    }
    fwdTimeStepSolver = rythmosTimeStepSolver;
  }
  else if (rythmosPL->get<std::string>("Nonlinear Solver Type") == "NOX") {
#ifdef Piro_ENABLE_NOX
    Teuchos::RCP<Thyra::NOXNonlinearSolver> nox_solver =  Teuchos::rcp(new Thyra::NOXNonlinearSolver);
    Teuchos::RCP<Teuchos::ParameterList> nox_params = Teuchos::rcp(new Teuchos::ParameterList);
    *nox_params = appParams->sublist("NOX");
    nox_solver->setParameterList(nox_params);
    fwdTimeStepSolver = nox_solver;
#else
    TEUCHOS_TEST_FOR_EXCEPTION(true, std::logic_error,"Requested NOX solver for a Rythmos Transient solve, Trilinos was not built with NOX enabled.  Please rebuild Trilinos or use the native Rythmos nonlinear solver.");
#endif

  }

  if (stepperType == "Backward Euler") {
    fwdStateStepper = Rythmos::backwardEulerStepper<Scalar> (model, fwdTimeStepSolver);
    fwdStateStepper->setParameterList(sublist(rythmosPL, "Rythmos Stepper", true));
  }
  else if (stepperType == "Forward Euler") {
    fwdStateStepper = Rythmos::forwardEulerStepper<Scalar> (model);
    fwdStateStepper->setParameterList(sublist(rythmosPL, "Rythmos Stepper", true));
  }
  else if (stepperType == "Explicit RK") {
    fwdStateStepper = Rythmos::explicitRKStepper<Scalar>(model);
    fwdStateStepper->setParameterList(sublist(rythmosPL, "Rythmos Stepper", true));
  }
  else if (stepperType == "BDF") {
    Teuchos::RCP<Teuchos::ParameterList> BDFparams =
      Teuchos::sublist(rythmosPL, "Rythmos Stepper", true);
    Teuchos::RCP<Teuchos::ParameterList> BDFStepControlPL =
      Teuchos::sublist(BDFparams,"Step Control Settings");

    fwdStateStepper = Teuchos::rcp( new Rythmos::ImplicitBDFStepper<Scalar>(model,fwdTimeStepSolver,BDFparams) );
    fwdStateStepper->setInitialCondition(model->getNominalValues());

  }
  else {
    // first (before failing) check to see if the user has added stepper factory
    typename std::map<std::string,Teuchos::RCP<RythmosStepperFactory<Scalar> > >::const_iterator
        stepFactItr = stepperFactories.find(stepperType);
    if(stepFactItr!=stepperFactories.end()) {
      // the user has added it, hot dog lets build a new stepper!
      Teuchos::RCP<Teuchos::ParameterList> stepperParams = Teuchos::sublist(rythmosPL, "Rythmos Stepper", true);

      // build the stepper using the factory
      fwdStateStepper = stepFactItr->second->buildStepper(model,fwdTimeStepSolver,stepperParams);
    }
    else {
      TEUCHOS_TEST_FOR_EXCEPTION(
          true, Teuchos::Exceptions::InvalidParameter,
          std::endl << "Error! Piro::Epetra::RythmosSolver: Invalid Steper Type: "
          << stepperType << std::endl);
    }
  }

  // Step control strategy
  {
    // If the stepper can accept a step control strategy, then attempt to build one.
    RCP<Rythmos::StepControlStrategyAcceptingStepperBase<Scalar> > scsa_stepper =
      Teuchos::rcp_dynamic_cast<Rythmos::StepControlStrategyAcceptingStepperBase<Scalar> >(fwdStateStepper);

    if (Teuchos::nonnull(scsa_stepper)) {
      const std::string step_control_strategy = rythmosPL->get("Step Control Strategy Type", "None");

      if (step_control_strategy == "None") {
        // don't do anything, stepper will build default
      } else if (step_control_strategy == "ImplicitBDFRamping") {

        const RCP<Rythmos::ImplicitBDFStepperRampingStepControl<Scalar> > rscs =
          rcp(new Rythmos::ImplicitBDFStepperRampingStepControl<Scalar>);

        const RCP<ParameterList> p = parameterList(rythmosPL->sublist("Rythmos Step Control Strategy"));
        rscs->setParameterList(p);

        scsa_stepper->setStepControlStrategy(rscs);
      } else {
        TEUCHOS_TEST_FOR_EXCEPTION(
            true, std::logic_error,
            "Error! Piro::Epetra::RythmosSolver: Invalid step control strategy type: "
            << step_control_strategy << std::endl);
      }
    }
  }

  {
    const RCP<Teuchos::ParameterList> integrationControlPL =
      Teuchos::sublist(rythmosPL, "Rythmos Integration Control", true);

    RCP<Rythmos::DefaultIntegrator<Scalar> > defaultIntegrator;
    if (rythmosPL->get("Rythmos Integration Control Strategy", "Simple") == "Simple") {
      defaultIntegrator = Rythmos::controlledDefaultIntegrator<Scalar>(Rythmos::simpleIntegrationControlStrategy<Scalar>(integrationControlPL));
    }
    else if(rythmosPL->get<std::string>("Rythmos Integration Control Strategy") == "Ramping") {
      defaultIntegrator = Rythmos::controlledDefaultIntegrator<Scalar>(Rythmos::rampingIntegrationControlStrategy<Scalar>(integrationControlPL));
    }
    fwdStateIntegrator = defaultIntegrator;
  }

  fwdStateIntegrator->setParameterList(sublist(rythmosPL, "Rythmos Integrator", true));

  if (Teuchos::nonnull(observer)) {
    fwdStateIntegrator->setIntegrationObserver(observer);
  }

  isInitialized = true;
}