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/*
ARPACK++ v1.0 8/1/1997
c++ interface to ARPACK code.
MODULE ARLSNSym.h.
Arpack++ class ARluNonSymStdEig definition
(SuperLU version).
ARPACK Authors
Richard Lehoucq
Danny Sorensen
Chao Yang
Dept. of Computational & Applied Mathematics
Rice University
Houston, Texas
*/
#ifndef ARLSNSYM_H
#define ARLSNSYM_H
#include <stddef.h>
#include "arch.h"
#include "arsnsym.h"
#include "arlnsmat.h"
template<class FLOAT>
class ARluNonSymStdEig:
public virtual ARNonSymStdEig<FLOAT, ARluNonSymMatrix<FLOAT> > {
protected:
// a) Protected function:
virtual void Copy(const ARluNonSymStdEig& 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:
// b) Public functions:
// b.1) Functions that allow changes in problem parameters.
virtual void ChangeShift(FLOAT sigmaRp);
virtual void SetRegularMode();
virtual void SetShiftInvertMode(FLOAT sigmap);
// b.2) Constructors and destructor.
ARluNonSymStdEig() { }
// Short constructor.
ARluNonSymStdEig(int nevp, ARluNonSymMatrix<FLOAT>& A,
char* whichp = "LM", int ncvp = 0,
FLOAT tolp = 0.0, int maxitp = 0,
FLOAT* residp = NULL, bool ishiftp = true);
// Long constructor (regular mode).
ARluNonSymStdEig(int nevp, ARluNonSymMatrix<FLOAT>& A,
FLOAT sigma, char* whichp = "LM", int ncvp = 0,
FLOAT tolp = 0.0, int maxitp = 0,
FLOAT* residp = NULL, bool ishiftp = true);
// Long constructor (shift and invert mode).
ARluNonSymStdEig(const ARluNonSymStdEig& other) { Copy(other); }
// Copy constructor.
virtual ~ARluNonSymStdEig() { }
// Destructor.
// c) Operators.
ARluNonSymStdEig& operator=(const ARluNonSymStdEig& other);
// Assignment operator.
}; // class ARluNonSymStdEig.
// ------------------------------------------------------------------------ //
// ARluNonSymStdEig member functions definition. //
// ------------------------------------------------------------------------ //
template<class FLOAT>
inline void ARluNonSymStdEig<FLOAT>::
Copy(const ARluNonSymStdEig<FLOAT>& other)
{
ARStdEig<FLOAT, FLOAT, ARluNonSymMatrix<FLOAT> >:: Copy(other);
if (mode > 2) objOP->FactorAsI(sigmaR);
} // Copy.
template<class FLOAT>
inline void ARluNonSymStdEig<FLOAT>::ChangeShift(FLOAT sigmaRp)
{
sigmaR = sigmaRp;
sigmaI = 0.0;
mode = 3;
iparam[7] = mode;
objOP->FactorAsI(sigmaR);
Restart();
} // ChangeShift.
template<class FLOAT>
inline void ARluNonSymStdEig<FLOAT>::SetRegularMode()
{
ARStdEig<FLOAT, FLOAT, ARluNonSymMatrix<FLOAT> >::
SetRegularMode(objOP, &ARluNonSymMatrix<FLOAT>::MultMv);
} // SetRegularMode.
template<class FLOAT>
inline void ARluNonSymStdEig<FLOAT>::SetShiftInvertMode(FLOAT sigmap)
{
ARStdEig<FLOAT, FLOAT, ARluNonSymMatrix<FLOAT> >::
SetShiftInvertMode(sigmap, objOP, &ARluNonSymMatrix<FLOAT>::MultInvv);
} // SetShiftInvertMode.
template<class FLOAT>
inline ARluNonSymStdEig<FLOAT>::
ARluNonSymStdEig(int nevp, ARluNonSymMatrix<FLOAT>& A,
char* whichp, int ncvp, FLOAT tolp,
int maxitp, FLOAT* residp, bool ishiftp)
{
NoShift();
DefineParameters(A.ncols(), nevp, &A, ARluNonSymMatrix<FLOAT>::MultMv,
whichp, ncvp, tolp, maxitp, residp, ishiftp);
} // Long constructor (regular mode).
template<class FLOAT>
inline ARluNonSymStdEig<FLOAT>::
ARluNonSymStdEig(int nevp, ARluNonSymMatrix<FLOAT>& A,
FLOAT sigmap, char* whichp, int ncvp, FLOAT tolp,
int maxitp, FLOAT* residp, bool ishiftp)
{
DefineParameters(A.ncols(), nevp, &A, &ARluNonSymMatrix<FLOAT>::MultInvv,
whichp, ncvp, tolp, maxitp, residp, ishiftp);
ChangeShift(sigmap);
} // Long constructor (shift and invert mode).
template<class FLOAT>
ARluNonSymStdEig<FLOAT>& ARluNonSymStdEig<FLOAT>::
operator=(const ARluNonSymStdEig<FLOAT>& other)
{
if (this != &other) { // Stroustrup suggestion.
ClearMem();
Copy(other);
}
return *this;
} // operator=.
#endif // ARLSNSYM_H
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