Panzer_Response_ExtremeValue.hpp

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//           Panzer: A partial differential equation assembly
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#ifndef __Panzer_Response_ExtremeValue_hpp__
#define __Panzer_Response_ExtremeValue_hpp__

#include <string>
#include <limits>

#include <mpi.h> // need for comm

#include "Teuchos_RCP.hpp"

#include "Thyra_VectorBase.hpp"
#include "Thyra_VectorSpaceBase.hpp"

#include "PanzerDiscFE_config.hpp"
#ifdef PANZER_HAVE_EPETRA_STACK
#include "Epetra_Map.h"
#include "Epetra_Vector.h"
#include "Epetra_MpiComm.h"
#endif

#include "Panzer_ResponseMESupport_Default.hpp"
#include "Panzer_GlobalEvaluationData.hpp"
#include "Panzer_ThyraObjFactory.hpp"
#include "Panzer_ThyraObjContainer.hpp"
#include "Panzer_LinearObjFactory.hpp"


namespace panzer {

template <typename EvalT>
class Response_ExtremeValue : public ResponseMESupport_Default<EvalT>
                          , public GlobalEvaluationData_BCAdjustment {
public:
   typedef typename EvalT::ScalarT ScalarT;

   Response_ExtremeValue(const std::string & responseName,MPI_Comm comm,bool useMax,
                       const Teuchos::RCP<const panzer::LinearObjFactory<panzer::Traits> > & linObjFact=Teuchos::null)
     : ResponseMESupport_Default<EvalT>(responseName,comm), value(0.0), linObjFactory_(linObjFact), useMax_(useMax)
   {
     if(linObjFactory_!=Teuchos::null) {
       // requires thyra object factory
       thyraObjFactory_ = Teuchos::rcp_dynamic_cast<const panzer::ThyraObjFactory<double> >(linObjFactory_,true);
       setSolnVectorSpace(thyraObjFactory_->getThyraDomainSpace());

       // build a ghosted container, with a solution vector
       ghostedContainer_ = linObjFactory_->buildGhostedLinearObjContainer();

       // set ghosted container (work space for assembly)
       linObjFactory_->initializeGhostedContainer(panzer::LinearObjContainer::X,*ghostedContainer_);

       using Teuchos::rcp_dynamic_cast;
     }
   }

   ScalarT value;

   virtual void scatterResponse();

   virtual void initializeResponse()
   { if(useMax_)
       value = -std::numeric_limits<ScalarT>::max();
     else
       value =  std::numeric_limits<ScalarT>::max();

     if(ghostedContainer_!=Teuchos::null) ghostedContainer_->initialize(); }

   // from ResponseMESupport_Default

   virtual std::size_t localSizeRequired() const { return 1; }

   virtual bool vectorIsDistributed() const { return false; }

   Teuchos::RCP<Thyra::VectorBase<double> > getGhostedVector() const
   { return Teuchos::rcp_dynamic_cast<const ThyraObjContainer<double> >(ghostedContainer_)->get_x_th(); }

   void adjustForDirichletConditions(const GlobalEvaluationData & localBCRows,const GlobalEvaluationData & globalBCRows);

private:
   void setSolnVectorSpace(const Teuchos::RCP<const Thyra::VectorSpaceBase<double> > & soln_vs);

   // hide these methods
   Response_ExtremeValue();
   Response_ExtremeValue(const Response_ExtremeValue &);

   Teuchos::RCP<const panzer::LinearObjFactory<panzer::Traits> > linObjFactory_;
   Teuchos::RCP<const panzer::ThyraObjFactory<double> > thyraObjFactory_;

   Teuchos::RCP<LinearObjContainer> uniqueContainer_;
   Teuchos::RCP<LinearObjContainer> ghostedContainer_;

   bool useMax_;
};

}

#endif