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/*
ARPACK++ v1.2 2/20/2000
c++ interface to ARPACK code.
MODULE ARBGNSym.h.
Arpack++ class ARluNonSymGenEig definition
(band matrix version).
ARPACK Authors
Richard Lehoucq
Danny Sorensen
Chao Yang
Dept. of Computational & Applied Mathematics
Rice University
Houston, Texas
*/
#ifndef ARBGNSYM_H
#define ARBGNSYM_H
#include <cstddef>
#include "arch.h"
#include "arbnsmat.h"
#include "arbnspen.h"
#include "argnsym.h"
template<class ARFLOAT>
class ARluNonSymGenEig:
public virtual ARNonSymGenEig<ARFLOAT, ARbdNonSymPencil<ARFLOAT, ARFLOAT>,
ARbdNonSymPencil<ARFLOAT, ARFLOAT> > {
private:
// a) Data structure used to store matrices.
ARbdNonSymPencil<ARFLOAT, ARFLOAT> Pencil;
// b) Protected functions:
virtual void Copy(const ARluNonSymGenEig& other);
// Makes a deep copy of "other" over "this" object.
// Old values are not deleted (this function is to be used
// by the copy constructor and the assignment operator only).
public:
// c) Public functions:
// c.1) Functions that allow changes in problem parameters.
virtual void ChangeShift(ARFLOAT sigmaRp, ARFLOAT sigmaIp = 0.0);
virtual void SetRegularMode();
virtual void SetShiftInvertMode(ARFLOAT sigmap);
virtual void SetComplexShiftMode(char partp, ARFLOAT sigmaRp, ARFLOAT sigmaIp);
// c.2) Constructors and destructor.
ARluNonSymGenEig() { }
// Short constructor.
ARluNonSymGenEig(int nevp, ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& A,
ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& B, char* whichp = "LM",
int ncvp = 0, ARFLOAT tolp = 0.0, int maxitp = 0,
ARFLOAT* residp = NULL, bool ishiftp = true);
// Long constructor (regular mode).
ARluNonSymGenEig(int nevp, ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& A,
ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& B, ARFLOAT sigma,
char* whichp = "LM", int ncvp = 0,
ARFLOAT tolp = 0.0, int maxitp = 0,
ARFLOAT* residp = NULL, bool ishiftp = true);
// Long constructor (real shift and invert mode).
ARluNonSymGenEig(int nevp, ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& A,
ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& B, char partp,
ARFLOAT sigmaRp, ARFLOAT sigmaIp, char* whichp = "LM",
int ncvp = 0, ARFLOAT tolp = 0.0, int maxitp = 0,
ARFLOAT* residp = NULL, bool ishiftp = true);
// Long constructor (complex shift and invert mode).
ARluNonSymGenEig(const ARluNonSymGenEig& other) { Copy(other); }
// Copy constructor.
virtual ~ARluNonSymGenEig() { }
// Destructor.
// d) Operators.
ARluNonSymGenEig& operator=(const ARluNonSymGenEig& other);
// Assignment operator.
}; // class ARluNonSymGenEig.
// ------------------------------------------------------------------------ //
// ARluNonSymGenEig member functions definition. //
// ------------------------------------------------------------------------ //
template<class ARFLOAT>
inline void ARluNonSymGenEig<ARFLOAT>::
Copy(const ARluNonSymGenEig<ARFLOAT>& other)
{
ARNonSymGenEig<ARFLOAT, ARbdNonSymPencil<ARFLOAT, ARFLOAT>,
ARbdNonSymPencil<ARFLOAT, ARFLOAT> >:: Copy(other);
Pencil = other.Pencil;
this->objOP = &Pencil;
this->objB = &Pencil;
this->objA = &Pencil;
} // Copy.
template<class ARFLOAT>
inline void ARluNonSymGenEig<ARFLOAT>::
ChangeShift(ARFLOAT sigmaRp, ARFLOAT sigmaIp)
{
if (sigmaIp == 0.0) {
this->objOP->FactorAsB(sigmaRp);
}
else {
this->objOP->FactorAsB(sigmaRp, sigmaIp, this->part);
}
ARrcNonSymGenEig<ARFLOAT>::ChangeShift(sigmaRp, sigmaIp);
} // ChangeShift.
template<class ARFLOAT>
inline void ARluNonSymGenEig<ARFLOAT>::SetRegularMode()
{
ARStdEig<ARFLOAT, ARFLOAT, ARbdNonSymPencil<ARFLOAT, ARFLOAT> >::
SetRegularMode(&Pencil, &ARbdNonSymPencil<ARFLOAT, ARFLOAT>::MultInvBAv);
} // SetRegularMode.
template<class ARFLOAT>
inline void ARluNonSymGenEig<ARFLOAT>::SetShiftInvertMode(ARFLOAT sigmap)
{
ARNonSymGenEig<ARFLOAT, ARbdNonSymPencil<ARFLOAT, ARFLOAT>,
ARbdNonSymPencil<ARFLOAT, ARFLOAT> >::
SetShiftInvertMode(sigmap, &Pencil,
&ARbdNonSymPencil<ARFLOAT, ARFLOAT>::MultInvAsBv);
} // SetShiftInvertMode.
template<class ARFLOAT>
inline void ARluNonSymGenEig<ARFLOAT>::
SetComplexShiftMode(char partp, ARFLOAT sigmaRp, ARFLOAT sigmaIp)
{
ARNonSymGenEig<ARFLOAT, ARbdNonSymPencil<ARFLOAT, ARFLOAT>,
ARbdNonSymPencil<ARFLOAT, ARFLOAT> >::
SetComplexShiftMode(partp, sigmaRp, sigmaIp, &Pencil,
&ARbdNonSymPencil<ARFLOAT, ARFLOAT>::MultInvAsBv,
&Pencil, &ARbdNonSymPencil<ARFLOAT, ARFLOAT>::MultAv);
} // SetComplexShiftMode.
template<class ARFLOAT>
inline ARluNonSymGenEig<ARFLOAT>::
ARluNonSymGenEig(int nevp, ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& A,
ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& B, char* whichp, int ncvp,
ARFLOAT tolp, int maxitp, ARFLOAT* residp, bool ishiftp)
{
Pencil.DefineMatrices(A, B);
this->NoShift();
this->DefineParameters(A.ncols(), nevp, &Pencil,
&ARbdNonSymPencil<ARFLOAT, ARFLOAT>::MultInvBAv, &Pencil,
&ARbdNonSymPencil<ARFLOAT, ARFLOAT>::MultBv, whichp,
ncvp, tolp, maxitp, residp, ishiftp);
} // Long constructor (regular mode).
template<class ARFLOAT>
inline ARluNonSymGenEig<ARFLOAT>::
ARluNonSymGenEig(int nevp, ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& A,
ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& B, ARFLOAT sigmap,
char* whichp, int ncvp, ARFLOAT tolp,
int maxitp, ARFLOAT* residp, bool ishiftp)
{
Pencil.DefineMatrices(A, B);
this->DefineParameters(A.ncols(), nevp, &Pencil,
&ARbdNonSymPencil<ARFLOAT, ARFLOAT>::MultInvAsBv, &Pencil,
&ARbdNonSymPencil<ARFLOAT, ARFLOAT>::MultBv, whichp,
ncvp, tolp, maxitp, residp, ishiftp);
SetShiftInvertMode(sigmap);
} // Long constructor (real shift and invert mode).
template<class ARFLOAT>
inline ARluNonSymGenEig<ARFLOAT>::
ARluNonSymGenEig(int nevp, ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& A,
ARbdNonSymMatrix<ARFLOAT, ARFLOAT>& B, char partp,
ARFLOAT sigmaRp, ARFLOAT sigmaIp, char* whichp, int ncvp,
ARFLOAT tolp, int maxitp, ARFLOAT* residp, bool ishiftp)
{
Pencil.DefineMatrices(A, B);
this->DefineParameters(A.ncols(), nevp, &Pencil,
&ARbdNonSymPencil<ARFLOAT, ARFLOAT>::MultInvAsBv, &Pencil,
&ARbdNonSymPencil<ARFLOAT, ARFLOAT>::MultBv, whichp,
ncvp, tolp, maxitp, residp, ishiftp);
SetComplexShiftMode(partp, sigmaRp, sigmaIp);
} // Long constructor (complex shift and invert mode).
template<class ARFLOAT>
ARluNonSymGenEig<ARFLOAT>& ARluNonSymGenEig<ARFLOAT>::
operator=(const ARluNonSymGenEig<ARFLOAT>& other)
{
if (this != &other) { // Stroustrup suggestion.
this->ClearMem();
Copy(other);
}
return *this;
} // operator=.
#endif // ARBGNSYM_H
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