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/*
ARPACK++ v1.2 2/20/2000
c++ interface to ARPACK code.
MODULE ARUSComp.h.
Arpack++ class ARluCompStdEig definition
(umfpack version).
ARPACK Authors
Richard Lehoucq
Danny Sorensen
Chao Yang
Dept. of Computational & Applied Mathematics
Rice University
Houston, Texas
*/
#ifndef ARUSCOMP_H
#define ARUSCOMP_H
#include <cstddef>
#include "arch.h"
#include "arscomp.h"
#include "arunsmat.h"
#include "arrseig.h"
template<class ARFLOAT>
class ARluCompStdEig:
public virtual ARCompStdEig<ARFLOAT,
ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT> > {
public:
// a) Public functions:
// a.1) Functions that allow changes in problem parameters.
virtual void ChangeShift(arcomplex<ARFLOAT> sigmaRp);
virtual void SetRegularMode();
virtual void SetShiftInvertMode(arcomplex<ARFLOAT> sigmap);
// a.2) Constructors and destructor.
ARluCompStdEig() { }
// Short constructor.
ARluCompStdEig(int nevp, ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& A,
char* whichp = "LM", int ncvp = 0,
ARFLOAT tolp = 0.0, int maxitp = 0,
arcomplex<ARFLOAT>* residp = NULL, bool ishiftp = true);
// Long constructor (regular mode).
ARluCompStdEig(int nevp, ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& A,
arcomplex<ARFLOAT> sigma, char* whichp = "LM",
int ncvp = 0, ARFLOAT tolp = 0.0, int maxitp = 0,
arcomplex<ARFLOAT>* residp = NULL, bool ishiftp = true);
// Long constructor (shift and invert mode).
ARluCompStdEig(const ARluCompStdEig& other) { Copy(other); }
// Copy constructor.
virtual ~ARluCompStdEig() { }
// Destructor.
// b) Operators.
ARluCompStdEig& operator=(const ARluCompStdEig& other);
// Assignment operator.
}; // class ARluCompStdEig.
// ------------------------------------------------------------------------ //
// ARluCompStdEig member functions definition. //
// ------------------------------------------------------------------------ //
template<class ARFLOAT>
inline void ARluCompStdEig<ARFLOAT>::
ChangeShift(arcomplex<ARFLOAT> sigmaRp)
{
this->objOP->FactorAsI(sigmaRp);
ARrcStdEig<ARFLOAT, arcomplex<ARFLOAT> >::ChangeShift(sigmaRp);
} // ChangeShift.
template<class ARFLOAT>
inline void ARluCompStdEig<ARFLOAT>::SetRegularMode()
{
ARStdEig<ARFLOAT, arcomplex<ARFLOAT>,
ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT> >::
SetRegularMode(this->objOP,
&ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>::MultMv);
} // SetRegularMode.
template<class ARFLOAT>
inline void ARluCompStdEig<ARFLOAT>::
SetShiftInvertMode(arcomplex<ARFLOAT> sigmap)
{
ARStdEig<ARFLOAT, arcomplex<ARFLOAT>,
ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT> >::
SetShiftInvertMode(sigmap, this->objOP,
&ARumNonSymMatrix<arcomplex<ARFLOAT>,ARFLOAT>::MultInvv);
} // SetShiftInvertMode.
template<class ARFLOAT>
inline ARluCompStdEig<ARFLOAT>::
ARluCompStdEig(int nevp, ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& A,
char* whichp, int ncvp, ARFLOAT tolp,
int maxitp, arcomplex<ARFLOAT>* residp, bool ishiftp)
{
this->NoShift();
this->DefineParameters(A.ncols(), nevp, &A,
&ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>::MultMv,
whichp, ncvp, tolp, maxitp, residp, ishiftp);
} // Long constructor (regular mode).
template<class ARFLOAT>
inline ARluCompStdEig<ARFLOAT>::
ARluCompStdEig(int nevp, ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& A,
arcomplex<ARFLOAT> sigmap, char* whichp, int ncvp,
ARFLOAT tolp, int maxitp, arcomplex<ARFLOAT>* residp,
bool ishiftp)
{
this->DefineParameters(A.ncols(), nevp, &A,
&ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>::MultInvv,
whichp, ncvp, tolp, maxitp, residp, ishiftp);
this->ChangeShift(sigmap);
} // Long constructor (shift and invert mode).
template<class ARFLOAT>
ARluCompStdEig<ARFLOAT>& ARluCompStdEig<ARFLOAT>::
operator=(const ARluCompStdEig<ARFLOAT>& other)
{
if (this != &other) { // Stroustrup suggestion.
this->ClearMem();
Copy(other);
}
return *this;
} // operator=.
#endif // ARUSCOMP_H
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