コード例 #1
0
// *****************************************************************
// *****************************************************************
bool LOCA::Epetra::ModelEvaluatorInterface::
computeShiftedMatrix(double alpha, double beta, const Epetra_Vector& x,
		     Epetra_Operator& A)
{
  // Create inargs
  EpetraExt::ModelEvaluator::InArgs inargs = model_->createInArgs();
  inargs.set_x(Teuchos::rcp(&x, false));
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_alpha))
    inargs.set_alpha(-beta); // alpha and beta are switched between LOCA and Thyra
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_beta))
    inargs.set_beta(alpha);
  alpha_prev = -beta; beta_prev = alpha; // prec must know alpha and beta
  inargs.set_p(0, Teuchos::rcp(&param_vec, false));
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_x_dot)) {
    // Create x_dot, filled with zeros
    if (x_dot == NULL)
      x_dot = new Epetra_Vector(x.Map());
    inargs.set_x_dot(Teuchos::rcp(x_dot, false));
  }

  // Create outargs
  EpetraExt::ModelEvaluator::OutArgs outargs = model_->createOutArgs();
  EpetraExt::ModelEvaluator::Evaluation<Epetra_Vector> eval_f;
  outargs.set_f(eval_f);
  outargs.set_W(Teuchos::rcp(&A, false));

  model_->evalModel(inargs, outargs);

  return true;
}
コード例 #2
0
// *****************************************************************
// ***************************************************************** 
bool LOCA::Epetra::ModelEvaluatorInterface::
computeJacobian(const Epetra_Vector& x, Epetra_Operator& Jac)
{
  // Create inargs
  EpetraExt::ModelEvaluator::InArgs inargs = model_->createInArgs();
  inargs.set_x(Teuchos::rcp(&x, false));
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_alpha))
    inargs.set_alpha(0.0);
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_beta))
    inargs.set_beta(1.0);
  alpha_prev = 0.0; beta_prev = 1.0; // prec must know alpha and beta
  inargs.set_p(0, Teuchos::rcp(&param_vec, false));
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_x_dot)) {
    // Create x_dot, filled with zeros
    if (x_dot == NULL)
      x_dot = new Epetra_Vector(x.Map());
    inargs.set_x_dot(Teuchos::rcp(x_dot, false));
  }

  // Create outargs
  EpetraExt::ModelEvaluator::OutArgs outargs = model_->createOutArgs();
  EpetraExt::ModelEvaluator::Evaluation<Epetra_Vector> eval_f;
  outargs.set_f(eval_f);
  outargs.set_W(Teuchos::rcp(&Jac, false));

  model_->evalModel(inargs, outargs);

  return true;
}
コード例 #3
0
// *****************************************************************
// *****************************************************************
bool LOCA::Epetra::ModelEvaluatorInterface::
computeF(const Epetra_Vector& x, Epetra_Vector& F, const FillType fillFlag)
{
  // Create inargs
  EpetraExt::ModelEvaluator::InArgs inargs = model_->createInArgs();
  inargs.set_x(Teuchos::rcp(&x, false));
  inargs.set_p(0, Teuchos::rcp(&param_vec, false));
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_x_dot)) {
    // Create x_dot, filled with zeros
    if (x_dot == NULL)
      x_dot = new Epetra_Vector(x.Map());
    inargs.set_x_dot(Teuchos::rcp(x_dot, false));
  }
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_alpha))
    inargs.set_alpha(0.0);
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_beta))
    inargs.set_beta(1.0);

  // Create outargs
  EpetraExt::ModelEvaluator::OutArgs outargs = model_->createOutArgs();
  EpetraExt::ModelEvaluator::Evaluation<Epetra_Vector> eval_f;
  Teuchos::RefCountPtr<Epetra_Vector> f = Teuchos::rcp(&F, false);
  if (fillFlag == NOX::Epetra::Interface::Required::Residual)
    eval_f.reset(f, EpetraExt::ModelEvaluator::EVAL_TYPE_EXACT); 
  else if (fillFlag == NOX::Epetra::Interface::Required::Jac)
    eval_f.reset(f, EpetraExt::ModelEvaluator::EVAL_TYPE_APPROX_DERIV);
  else
    eval_f.reset(f, EpetraExt::ModelEvaluator::EVAL_TYPE_VERY_APPROX_DERIV);
  outargs.set_f(eval_f);

  model_->evalModel(inargs, outargs);

  return true;
}
コード例 #4
0
NOX::Abstract::Group::ReturnType 
LOCA::Epetra::ModelEvaluatorInterface::
computeDfDp(LOCA::MultiContinuation::AbstractGroup& grp, 
	    const vector<int>& param_ids,
	    NOX::Abstract::MultiVector& result,
	    bool isValidF) const
{
  // Break result into f and df/dp
  NOX::Epetra::Vector& f = dynamic_cast<NOX::Epetra::Vector&>(result[0]);
  Epetra_Vector& epetra_f = f.getEpetraVector();

  std::vector<int> dfdp_index(result.numVectors()-1);
  for (unsigned int i=0; i<dfdp_index.size(); i++)
    dfdp_index[i] = i+1;
  Teuchos::RefCountPtr<NOX::Epetra::MultiVector> dfdp =
    Teuchos::rcp_dynamic_cast<NOX::Epetra::MultiVector>(result.subView(dfdp_index));
  Epetra_MultiVector& epetra_dfdp = dfdp->getEpetraMultiVector();

  // Create inargs
  EpetraExt::ModelEvaluator::InArgs inargs = model_->createInArgs();
  const NOX::Epetra::Vector& x = 
    dynamic_cast<const NOX::Epetra::Vector&>(grp.getX());
  const Epetra_Vector& epetra_x = x.getEpetraVector();
  inargs.set_x(Teuchos::rcp(&epetra_x, false));
  inargs.set_p(0, Teuchos::rcp(&param_vec, false));
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_x_dot)) {
    // Create x_dot, filled with zeros
    if (x_dot == NULL)
      x_dot = new Epetra_Vector(epetra_x.Map());
    inargs.set_x_dot(Teuchos::rcp(x_dot, false));
  }

  // Create outargs
  EpetraExt::ModelEvaluator::OutArgs outargs = model_->createOutArgs();
  if (!isValidF) {
    EpetraExt::ModelEvaluator::Evaluation<Epetra_Vector> eval_f;
    Teuchos::RefCountPtr<Epetra_Vector> F = Teuchos::rcp(&epetra_f, false);
    eval_f.reset(F, EpetraExt::ModelEvaluator::EVAL_TYPE_EXACT); 
    outargs.set_f(eval_f);
  }
  Teuchos::RefCountPtr<Epetra_MultiVector> DfDp = 
    Teuchos::rcp(&epetra_dfdp, false);
  Teuchos::Array<int> param_indexes(param_ids.size());
  for (unsigned int i=0; i<param_ids.size(); i++)
    param_indexes[i] = param_ids[i];
  EpetraExt::ModelEvaluator::DerivativeMultiVector dmv(DfDp, EpetraExt::ModelEvaluator::DERIV_MV_BY_COL,
						       param_indexes);
  EpetraExt::ModelEvaluator::Derivative deriv(dmv);
  outargs.set_DfDp(0, deriv);

  model_->evalModel(inargs, outargs);

  return NOX::Abstract::Group::Ok;
}
コード例 #5
0
void
LOCA::Epetra::ModelEvaluatorInterface::
postProcessContinuationStep(
          LOCA::Abstract::Iterator::StepStatus stepStatus,
          LOCA::Epetra::Group& group)
{
  // Evaluate responses in model evaluator after successful step
  if (stepStatus != LOCA::Abstract::Iterator::Successful) return;

  // Create inargs
  const NOX::Epetra::Vector& ex = dynamic_cast<const NOX::Epetra::Vector&>(group.getX());
  const Epetra_Vector& x = ex.getEpetraVector();

  EpetraExt::ModelEvaluator::InArgs inargs = model_->createInArgs();
  inargs.set_x(Teuchos::rcp(&x, false));
  inargs.set_p(0, Teuchos::rcp(&param_vec, false));
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_x_dot)) {
    // Create x_dot, filled with zeros
    if (x_dot == NULL)
      x_dot = new Epetra_Vector(x.Map());
    inargs.set_x_dot(Teuchos::rcp(x_dot, false));
  }
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_alpha))
    inargs.set_alpha(0.0);
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_beta))
    inargs.set_beta(1.0);

  // Create outargs
  EpetraExt::ModelEvaluator::OutArgs outargs = model_->createOutArgs();
  int num_g = outargs.Ng();
  if (num_g > 0) {
    Teuchos::RCP<Epetra_Vector> g0 = Teuchos::rcp(new Epetra_Vector(*(model_->get_g_map(0))));

    outargs.set_g(0,g0);

    model_->evalModel(inargs, outargs);
  }
}
コード例 #6
0
// *****************************************************************
// *****************************************************************
bool LOCA::Epetra::ModelEvaluatorInterface::
computePreconditioner(const Epetra_Vector& x, 
		      Epetra_Operator& M,
		      Teuchos::ParameterList* precParams)
{
  // Create inargs
  EpetraExt::ModelEvaluator::InArgs inargs = model_->createInArgs();
  inargs.set_x(Teuchos::rcp(&x, false));

  // alpha and beta are stored from previous matrix computation
  // which might have been computeJacobian or computeShiftedMatrix
  // This is a state-full hack, but needed since this function
  // does not take alpha and beta as arguments. [AGS 01/10]
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_alpha))
    inargs.set_alpha(alpha_prev);
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_beta))
    inargs.set_beta(beta_prev);
  inargs.set_p(0, Teuchos::rcp(&param_vec, false));
  if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_x_dot)) {
    // Create x_dot, filled with zeros
    if (x_dot == NULL)
      x_dot = new Epetra_Vector(x.Map());
    inargs.set_x_dot(Teuchos::rcp(x_dot, false));
  }

  // Create outargs
  EpetraExt::ModelEvaluator::OutArgs outargs = model_->createOutArgs();
  EpetraExt::ModelEvaluator::Evaluation<Epetra_Vector> eval_f;
  eval_f.reset(Teuchos::null, 
               EpetraExt::ModelEvaluator::EVAL_TYPE_VERY_APPROX_DERIV);
  outargs.set_f(eval_f);
  outargs.set_WPrec(Teuchos::rcp(&M, false));

  model_->evalModel(inargs, outargs);

  return true;
}
コード例 #7
0
ファイル: Main_SGCoupled.cpp プロジェクト: dlonie/Albany
int main(int argc, char *argv[]) {

  int status=0; // 0 = pass, failures are incremented
  bool success = true;
  Teuchos::GlobalMPISession mpiSession(&argc,&argv);

  using Teuchos::RCP;
  using Teuchos::rcp;

  RCP<Teuchos::FancyOStream> out(Teuchos::VerboseObjectBase::getDefaultOStream());
  
  //***********************************************************
  // Command-line argument for input file
  //***********************************************************

  std::string xmlfilename_coupled;
  if(argc > 1){
    if(!strcmp(argv[1],"--help")){
      std::cout << "albany [inputfile.xml]" << std::endl;
      std::exit(1);
    }
    else
      xmlfilename_coupled = argv[1];
  }
  else
    xmlfilename_coupled = "input.xml";


  try {

    RCP<Teuchos::Time> totalTime = 
      Teuchos::TimeMonitor::getNewTimer("AlbanySG: ***Total Time***");
    RCP<Teuchos::Time> setupTime = 
      Teuchos::TimeMonitor::getNewTimer("AlbanySG: Setup Time");
    Teuchos::TimeMonitor totalTimer(*totalTime); //start timer

    //***********************************************************
    // Set up coupled solver first to setup comm's
    //***********************************************************
    Teuchos::RCP<Epetra_Comm> globalComm = 
      Albany::createEpetraCommFromMpiComm(Albany_MPI_COMM_WORLD);
    Albany::SolverFactory coupled_slvrfctry(xmlfilename_coupled, 
					    Albany_MPI_COMM_WORLD);
    Teuchos::ParameterList& coupledParams = coupled_slvrfctry.getParameters();
    Teuchos::ParameterList& coupledSystemParams = 
      coupledParams.sublist("Coupled System");
    Teuchos::Array<std::string> model_filenames =
      coupledSystemParams.get<Teuchos::Array<std::string> >("Model XML Files");
    int num_models = model_filenames.size();
    Teuchos::Array< RCP<Albany::Application> > apps(num_models);
    Teuchos::Array< RCP<EpetraExt::ModelEvaluator> > models(num_models);
    Teuchos::Array< RCP<Teuchos::ParameterList> > piroParams(num_models);
    Teuchos::RCP< Teuchos::ParameterList> coupledPiroParams = 
      Teuchos::rcp(&(coupledParams.sublist("Piro")),false);
    Teuchos::RCP<Piro::Epetra::StokhosSolver> coupledSolver =
      Teuchos::rcp(new Piro::Epetra::StokhosSolver(coupledPiroParams, 
						   globalComm));
    Teuchos::RCP<const Epetra_Comm> app_comm = coupledSolver->getSpatialComm();

    // Set up each model
    Teuchos::Array< Teuchos::RCP<NOX::Epetra::Observer> > observers(num_models);
    for (int m=0; m<num_models; m++) {
      Albany::SolverFactory slvrfctry(
	model_filenames[m], 
	Albany::getMpiCommFromEpetraComm(*app_comm));
      models[m] = slvrfctry.createAlbanyAppAndModel(apps[m], app_comm);
      Teuchos::ParameterList& appParams = slvrfctry.getParameters();
      piroParams[m] = Teuchos::rcp(&(appParams.sublist("Piro")),false);
      observers[m] = Teuchos::rcp(new Albany_NOXObserver(apps[m]));
    }

    // Setup network model
    std::string network_name = 
      coupledSystemParams.get("Network Model", "Param To Response");
    RCP<Piro::Epetra::AbstractNetworkModel> network_model;
    if (network_name == "Param To Response")
      network_model = rcp(new Piro::Epetra::ParamToResponseNetworkModel);
    else if (network_name == "Reactor Network")
      network_model = rcp(new Albany::ReactorNetworkModel(1));
    else
      TEUCHOS_TEST_FOR_EXCEPTION(
	true, std::logic_error, "Invalid network model name " << network_name);
    RCP<EpetraExt::ModelEvaluator> coupledModel =
      rcp(new Piro::Epetra::NECoupledModelEvaluator(models, piroParams,
						    network_model,
						    coupledPiroParams, 
						    globalComm,
						    observers));
    coupledSolver->setup(coupledModel);

    // Solve coupled system
    EpetraExt::ModelEvaluator::InArgs inArgs = coupledSolver->createInArgs();
    EpetraExt::ModelEvaluator::OutArgs outArgs = coupledSolver->createOutArgs();
    for (int i=0; i<inArgs.Np(); i++)
      if (inArgs.supports(EpetraExt::ModelEvaluator::IN_ARG_p_sg, i))
	inArgs.set_p_sg(i, coupledSolver->get_p_sg_init(i));
    for (int i=0; i<outArgs.Ng(); i++) 
      if (outArgs.supports(EpetraExt::ModelEvaluator::OUT_ARG_g_sg, i)) {
	RCP<Stokhos::EpetraVectorOrthogPoly> g_sg = 
	  coupledSolver->create_g_sg(i);
	outArgs.set_g_sg(i, g_sg);
      }
    coupledSolver->evalModel(inArgs, outArgs);

    // Print results
    bool printResponse = 
      coupledSystemParams.get("Print Response Expansion", true);
    int idx = outArgs.Ng()-1;
    Teuchos::RCP<Stokhos::EpetraVectorOrthogPoly> g_sg = 
      outArgs.get_g_sg(idx);
    Teuchos::RCP<Stokhos::SGModelEvaluator> sg_model =
      coupledSolver->get_sg_model();
    Teuchos::RCP<Stokhos::EpetraVectorOrthogPoly> g_sg_local = 
      //sg_model->import_solution_poly(*(g_sg->getBlockVector()));
      g_sg;
    Epetra_Vector g_mean(*(g_sg->coefficientMap()));
    Epetra_Vector g_std_dev(*(g_sg->coefficientMap()));
    g_sg->computeMean(g_mean);
    g_sg->computeStandardDeviation(g_std_dev);
    RCP<Epetra_Vector> g_mean_local = rcp(&g_mean,false);
    RCP<Epetra_Vector> g_std_dev_local = rcp(&g_std_dev,false);
    if (g_mean.Map().DistributedGlobal()) {
      Epetra_LocalMap local_map(g_mean.GlobalLength(), 0, 
				g_mean.Map().Comm());
      g_mean_local = rcp(new Epetra_Vector(local_map));
      g_std_dev_local = rcp(new Epetra_Vector(local_map));
      Epetra_Import importer(local_map, g_mean.Map());
      g_mean_local->Import(g_mean, importer, Insert);
      g_std_dev_local->Import(g_std_dev, importer, Insert);
    }
    out->precision(16);
    *out << std::endl
	 << "Final value of coupling variables:" << std::endl
	 << "Mean:" << std::endl << *g_mean_local << std::endl
	 << "Std. Dev.:" << std::endl << *g_std_dev_local << std::endl;
    if (printResponse)
      *out << "PCE:" << std::endl << *g_sg_local << std::endl;

    status += coupled_slvrfctry.checkSGTestResults(
        0,
        g_sg_local,
        g_mean_local.get(),
        g_std_dev_local.get());
    *out << "\nNumber of Failed Comparisons: " << status << std::endl;
  }

  TEUCHOS_STANDARD_CATCH_STATEMENTS(true, std::cerr, success);
  if (!success) status+=10000;

  Teuchos::TimeMonitor::summarize(*out,false,true,false/*zero timers*/);
  return status;
}