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/*
ARPACK++ v1.2 2/20/2000
c++ interface to ARPACK code.
MODULE ARUGComp.h.
Arpack++ class ARluCompGenEig definition
(umfpack version).
ARPACK Authors
Richard Lehoucq
Danny Sorensen
Chao Yang
Dept. of Computational & Applied Mathematics
Rice University
Houston, Texas
*/
#ifndef ARUGCOMP_H
#define ARUGCOMP_H
#include <cstddef>
#include "arch.h"
#include "arunsmat.h"
#include "arunspen.h"
#include "arrseig.h"
#include "argcomp.h"
template<class ARFLOAT>
class ARluCompGenEig:
public virtual
ARCompGenEig<ARFLOAT, ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT >,
ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT > > {
private:
// a) Data structure used to store matrices.
ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT > Pencil;
// b) Protected functions:
virtual void Copy(const ARluCompGenEig& 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(arcomplex<ARFLOAT> sigmaRp);
virtual void SetRegularMode();
virtual void SetShiftInvertMode(arcomplex<ARFLOAT> sigmap);
// c.2) Constructors and destructor.
ARluCompGenEig() { }
// Short constructor.
ARluCompGenEig(int nevp, ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& A,
ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& B,
char* whichp = "LM", int ncvp = 0,
ARFLOAT tolp = 0.0, int maxitp = 0,
arcomplex<ARFLOAT>* residp = NULL, bool ishiftp = true);
// Long constructor (regular mode).
ARluCompGenEig(int nevp, ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& A,
ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& B,
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).
ARluCompGenEig(const ARluCompGenEig& other) { Copy(other); }
// Copy constructor.
virtual ~ARluCompGenEig() { }
// d) Operators.
ARluCompGenEig& operator=(const ARluCompGenEig& other);
// Assignment operator.
}; // class ARluCompGenEig.
// ------------------------------------------------------------------------ //
// ARluCompGenEig member functions definition. //
// ------------------------------------------------------------------------ //
template<class ARFLOAT>
inline void ARluCompGenEig<ARFLOAT>::
Copy(const ARluCompGenEig<ARFLOAT>& other)
{
ARCompGenEig<ARFLOAT, ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT >,
ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT> >:: Copy(other);
Pencil = other.Pencil;
this->objOP = &Pencil;
this->objB = &Pencil;
} // Copy.
template<class ARFLOAT>
inline void ARluCompGenEig<ARFLOAT>::
ChangeShift(arcomplex<ARFLOAT> sigmaRp)
{
this->objOP->FactorAsB(sigmaRp);
ARrcStdEig<ARFLOAT, arcomplex<ARFLOAT> >::ChangeShift(sigmaRp);
} // ChangeShift.
template<class ARFLOAT>
inline void ARluCompGenEig<ARFLOAT>::SetRegularMode()
{
ARStdEig<ARFLOAT, arcomplex<ARFLOAT>,
ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT> >::
SetRegularMode(&Pencil,
&ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT>::MultInvBAv);
} // SetRegularMode.
template<class ARFLOAT>
inline void ARluCompGenEig<ARFLOAT>::
SetShiftInvertMode(arcomplex<ARFLOAT> sigmap)
{
ARCompGenEig<ARFLOAT, ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT>,
ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT> >::
SetShiftInvertMode(sigmap, &Pencil,
&ARumNonSymPencil<arcomplex<ARFLOAT>,ARFLOAT>::MultInvAsBv);
} // SetShiftInvertMode.
template<class ARFLOAT>
inline ARluCompGenEig<ARFLOAT>::
ARluCompGenEig(int nevp, ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& A,
ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& B, char* whichp,
int ncvp, ARFLOAT tolp, int maxitp,
arcomplex<ARFLOAT>* residp, bool ishiftp)
{
Pencil.DefineMatrices(A, B);
this->NoShift();
this->DefineParameters(A.ncols(), nevp, &Pencil,
&ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT>::MultInvBAv,
&Pencil,
&ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT>::MultBv,
whichp, ncvp, tolp, maxitp, residp, ishiftp);
} // Long constructor (regular mode).
template<class ARFLOAT>
inline ARluCompGenEig<ARFLOAT>::
ARluCompGenEig(int nevp, ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& A,
ARumNonSymMatrix<arcomplex<ARFLOAT>, ARFLOAT>& B,
arcomplex<ARFLOAT> sigmap, char* whichp, int ncvp,
ARFLOAT tolp, int maxitp, arcomplex<ARFLOAT>* residp,
bool ishiftp)
{
Pencil.DefineMatrices(A, B);
this->DefineParameters(A.ncols(), nevp, &Pencil,
&ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT>::MultInvAsBv,
&Pencil,
&ARumNonSymPencil<arcomplex<ARFLOAT>, ARFLOAT>::MultBv,
whichp, ncvp, tolp, maxitp, residp, ishiftp);
SetShiftInvertMode(sigmap);
} // Long constructor (shift and invert mode).
template<class ARFLOAT>
ARluCompGenEig<ARFLOAT>& ARluCompGenEig<ARFLOAT>::
operator=(const ARluCompGenEig<ARFLOAT>& other)
{
if (this != &other) { // Stroustrup suggestion.
this->ClearMem();
Copy(other);
}
return *this;
} // operator=.
#endif // ARUGCOMP_H
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