Thyra::ModelEvaluatorBase::InArgs<Scalar>
ForwardSensitivityExplicitModelEvaluator<Scalar>::createInArgs() const
{
  TEUCHOS_ASSERT( !is_null(stateModel_) );
  typedef Thyra::ModelEvaluatorBase MEB;
  MEB::InArgs<Scalar> stateModelInArgs = stateModel_->createInArgs();
  MEB::InArgsSetup<Scalar> inArgs;
  inArgs.setModelEvalDescription(this->description());
  inArgs.setSupports( MEB::IN_ARG_x );
  inArgs.setSupports( MEB::IN_ARG_t );
  inArgs.setSupports( MEB::IN_ARG_beta,
    stateModelInArgs.supports(MEB::IN_ARG_beta) );
  return inArgs;
}
Thyra::ModelEvaluatorBase::InArgs<Scalar>
TimeDiscretizedBackwardEulerModelEvaluator<Scalar>::createInArgs() const
{
  typedef Thyra::ModelEvaluatorBase MEB;
  MEB::InArgsSetup<Scalar> inArgs;
  inArgs.setModelEvalDescription(this->description());
  inArgs.setSupports(MEB::IN_ARG_x);
  return inArgs;
}
ModelEvaluatorBase::InArgs<Scalar>
DefaultStateEliminationModelEvaluator<Scalar>::createInArgs() const
{
  typedef ModelEvaluatorBase MEB;
  const Teuchos::RCP<const ModelEvaluator<Scalar> >
    thyraModel = this->getUnderlyingModel();
  const MEB::InArgs<Scalar> wrappedInArgs = thyraModel->createInArgs();
  MEB::InArgsSetup<Scalar> inArgs;
  inArgs.setModelEvalDescription(this->description());
  inArgs.set_Np(wrappedInArgs.Np());
  inArgs.setSupports(wrappedInArgs);
  inArgs.setUnsupportsAndRelated(MEB::IN_ARG_x); // Wipe out x, x_dot ...
  return inArgs;
}
Simple2DModelEvaluator<Scalar>::Simple2DModelEvaluator()
  : x_space_(Thyra::defaultSpmdVectorSpace<Scalar>(2)),
    f_space_(x_space_),
    W_factory_(Thyra::defaultSerialDenseLinearOpWithSolveFactory<Scalar>()),
    d_(0.0),
    p_(x_space_->dim(), Teuchos::ScalarTraits<Scalar>::zero()),
    showGetInvalidArg_(false)
{

  using Teuchos::RCP;
  using Thyra::VectorBase;
  using Thyra::createMember;
  typedef Thyra::ModelEvaluatorBase MEB;
  typedef Teuchos::ScalarTraits<Scalar> ST;
  
  MEB::InArgsSetup<Scalar> inArgs;
  inArgs.setModelEvalDescription(this->description());
  inArgs.setSupports(MEB::IN_ARG_x);
  prototypeInArgs_ = inArgs;
  
  MEB::OutArgsSetup<Scalar> outArgs;
  outArgs.setModelEvalDescription(this->description());
  outArgs.setSupports(MEB::OUT_ARG_f);
  outArgs.setSupports(MEB::OUT_ARG_W_op);
  outArgs.setSupports(MEB::OUT_ARG_W_prec);
  prototypeOutArgs_ = outArgs;

  nominalValues_ = inArgs;
  x0_ = createMember(x_space_);
  V_S(x0_.ptr(), ST::zero());
  nominalValues_.set_x(x0_);

  set_d(10.0);
  set_p(Teuchos::tuple<Scalar>(2.0, 0.0)());
  set_x0(Teuchos::tuple<Scalar>(1.0, 1.0)());

}
void DiagonalImplicitRKModelEvaluator<Scalar>::initializeDIRKModel(
  const RCP<const Thyra::ModelEvaluator<Scalar> >& daeModel,
  const Thyra::ModelEvaluatorBase::InArgs<Scalar>& basePoint,
  const RCP<Thyra::LinearOpWithSolveFactoryBase<Scalar> >& dirk_W_factory,
  const RCP<const RKButcherTableauBase<Scalar> >& irkButcherTableau
  )
{
  typedef ScalarTraits<Scalar> ST;
  // ToDo: Assert input arguments!
  // How do I verify the basePoint is an authentic InArgs from daeModel?
  TEUCHOS_TEST_FOR_EXCEPTION( 
      is_null(basePoint.get_x()), 
      std::logic_error,
      "Error!  The basepoint x vector is null!"
      );
  TEUCHOS_TEST_FOR_EXCEPTION( 
      is_null(daeModel), 
      std::logic_error,
      "Error!  The model evaluator pointer is null!"
      );
  TEUCHOS_TEST_FOR_EXCEPTION( 
      !daeModel->get_x_space()->isCompatible(*(basePoint.get_x()->space())), 
      std::logic_error,
      "Error!  The basepoint input arguments are incompatible with the model evaluator vector space!"
      );
  //TEUCHOS_TEST_FOR_EXCEPT(is_null(dirk_W_factory));

  daeModel_ = daeModel;
  basePoint_ = basePoint;
  dirk_W_factory_ = dirk_W_factory;
  dirkButcherTableau_ = irkButcherTableau;

  const int numStages = dirkButcherTableau_->numStages();

  using Teuchos::rcp_dynamic_cast;
  stage_space_ = productVectorSpace(daeModel_->get_x_space(),numStages);
  RCP<const Thyra::VectorSpaceBase<Scalar> > vs = rcp_dynamic_cast<const Thyra::VectorSpaceBase<Scalar> >(stage_space_,true);
  stage_derivatives_ = rcp_dynamic_cast<Thyra::ProductVectorBase<Scalar> >(createMember(vs),true);
  Thyra::V_S( rcp_dynamic_cast<Thyra::VectorBase<Scalar> >(stage_derivatives_).ptr(),ST::zero());

  // Set up prototypical InArgs
  {
    typedef Thyra::ModelEvaluatorBase MEB;
    MEB::InArgsSetup<Scalar> inArgs;
    inArgs.setModelEvalDescription(this->description());
    inArgs.setSupports(MEB::IN_ARG_x);
    inArgs_ = inArgs;
  }
  // Set up prototypical OutArgs
  {
    typedef Thyra::ModelEvaluatorBase MEB;
    MEB::OutArgsSetup<Scalar> outArgs;
    outArgs.setModelEvalDescription(this->description());
    outArgs.setSupports(MEB::OUT_ARG_f);
    outArgs.setSupports(MEB::OUT_ARG_W_op);
    outArgs_ = outArgs;
  }
  // Set up nominal values
  nominalValues_ = inArgs_;

  isInitialized_ = true;
}
void ImplicitRKModelEvaluator<Scalar>::initializeIRKModel(
  const RCP<const Thyra::ModelEvaluator<Scalar> >& daeModel,
  const Thyra::ModelEvaluatorBase::InArgs<Scalar>& basePoint,
  const RCP<Thyra::LinearOpWithSolveFactoryBase<Scalar> >& irk_W_factory,
  const RCP<const RKButcherTableauBase<Scalar> >& irkButcherTableau
  )
{
  // ToDo: Assert input arguments!
  // How do I verify the basePoint is an authentic InArgs from daeModel?
  TEST_FOR_EXCEPTION( 
      is_null(basePoint.get_x()), 
      std::logic_error,
      "Error!  The basepoint x vector is null!"
      );
  TEST_FOR_EXCEPTION( 
      is_null(daeModel), 
      std::logic_error,
      "Error!  The model evaluator pointer is null!"
      );
  TEST_FOR_EXCEPTION( 
      !daeModel->get_x_space()->isCompatible(*(basePoint.get_x()->space())), 
      std::logic_error,
      "Error!  The basepoint input arguments are incompatible with the model evaluator vector space!"
      );
  TEST_FOR_EXCEPT(is_null(irk_W_factory));

  daeModel_ = daeModel;
  basePoint_ = basePoint;
  irk_W_factory_ = irk_W_factory;
  irkButcherTableau_ = irkButcherTableau;

  const int numStages = irkButcherTableau_->numStages();

  x_bar_space_ = productVectorSpace(daeModel_->get_x_space(),numStages);
  f_bar_space_ = productVectorSpace(daeModel_->get_f_space(),numStages);

  // HACK! Remove the preconditioner factory for now!
  if (irk_W_factory_->acceptsPreconditionerFactory())
    irk_W_factory_->unsetPreconditionerFactory();

  // ToDo: create the block diagonal preconditioner factory and set this on
  // irk_W_factory_!
  
  // Set up prototypical InArgs
  {
    typedef Thyra::ModelEvaluatorBase MEB;
    MEB::InArgsSetup<Scalar> inArgs;
    inArgs.setModelEvalDescription(this->description());
    inArgs.setSupports(MEB::IN_ARG_x);
    inArgs_ = inArgs;
  }
  // Set up prototypical OutArgs
  {
    typedef Thyra::ModelEvaluatorBase MEB;
    MEB::OutArgsSetup<Scalar> outArgs;
    outArgs.setModelEvalDescription(this->description());
    outArgs.setSupports(MEB::OUT_ARG_f);
    outArgs.setSupports(MEB::OUT_ARG_W_op);
    outArgs_ = outArgs;
  }
  // Set up nominal values
  nominalValues_ = inArgs_;

  isInitialized_ = true;
}