Teko_DiagnosticLinearOp.hpp

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//      Teko: A package for block and physics based preconditioning
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#ifndef __Teko_DiagnosticLinearOp_hpp__
#define __Teko_DiagnosticLinearOp_hpp__

#include <iostream>

#include "Teko_Utilities.hpp"
#include "Teko_ImplicitLinearOp.hpp"

#include "Teuchos_Time.hpp"

namespace Teko {

class DiagnosticLinearOp : public ImplicitLinearOp {
public:
   DiagnosticLinearOp(const Teuchos::RCP<std::ostream> & ostrm,const ModifiableLinearOp & A,const std::string & diagnosticString);

   DiagnosticLinearOp(const Teuchos::RCP<std::ostream> & ostrm,const LinearOp & A,const std::string & diagnosticString);

   DiagnosticLinearOp(const Teuchos::RCP<std::ostream> & ostrm,const LinearOp & fwdOp,const ModifiableLinearOp & A,const std::string & diagnosticString);

   virtual ~DiagnosticLinearOp();



   virtual VectorSpace range() const { return wrapOpA_lo_->range(); }

   virtual VectorSpace domain() const { return wrapOpA_lo_->domain(); }

   virtual void implicitApply(const MultiVector & x, MultiVector & y,
              const double alpha = 1.0, const double beta = 0.0) const;

   virtual void describe(Teuchos::FancyOStream & out_arg,
                         const Teuchos::EVerbosityLevel verbLevel) const
   { wrapOpA_lo_->describe(out_arg,verbLevel); }

   int numApplications() const { return timer_.numCalls(); }
   double totalTime() const { return timer_.totalElapsedTime(); }

   ModifiableLinearOp getModifiableOp() const
   { return wrapOpA_; } 

   void setLinearOp(const LinearOp & lo) 
   { wrapOpA_lo_ = lo; wrapOpA_ = Teuchos::null; } 

   LinearOp getLinearOp() const
   { return wrapOpA_lo_; } 
 
   void setForwardOp(const Teko::LinearOp & lo)
   { fwdOp_ = lo; }
 
   /* Get the residual norm.  Used purely for testing.
    */
   double getResidualNorm() const
   { return residualNorm_; }

protected:
   // fundamental operators to use
   Teuchos::RCP<std::ostream> outputStream_;
   ModifiableLinearOp wrapOpA_;      
   LinearOp wrapOpA_lo_;      
   LinearOp fwdOp_;
   std::string diagString_;

   mutable double residualNorm_; // for testing purposes
   mutable Teuchos::Time timer_;

private:
   // hide me!
   DiagnosticLinearOp();
   DiagnosticLinearOp(const DiagnosticLinearOp &);
};

inline ModifiableLinearOp createDiagnosticLinearOp(const Teuchos::RCP<std::ostream> & os,const ModifiableLinearOp & A,const std::string & label)
{
   return Teuchos::rcp(new DiagnosticLinearOp(os,A,label));
}

inline ModifiableLinearOp createDiagnosticLinearOp(const Teuchos::RCP<std::ostream> & os,const LinearOp & A,const std::string & label)
{
   return Teuchos::rcp(new DiagnosticLinearOp(os,A,label));
}

inline ModifiableLinearOp createDiagnosticLinearOp(const Teuchos::RCP<std::ostream> & os,const Teko::LinearOp & fwdOp,const ModifiableLinearOp & A,const std::string & label)
{
   return Teuchos::rcp(new DiagnosticLinearOp(os,fwdOp,A,label));
}

} // end namespace Teko

#endif