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Anasazi::SortManager< MagnitudeType > Class Template Referenceabstract

Anasazi's templated pure virtual class for managing the sorting of approximate eigenvalues computed by the eigensolver. A concrete implementation of this class is necessary. More...

#include <AnasaziSortManager.hpp>

Inheritance diagram for Anasazi::SortManager< MagnitudeType >:
Anasazi::BasicSort< MagnitudeType >

Public Member Functions

 SortManager ()
 Default constructor. More...
 
 SortManager (Teuchos::ParameterList &pl)
 Constructor accepting a Teuchos::ParameterList. This is the default mode for instantiating a SortManager. More...
 
virtual ~SortManager ()
 Destructor. More...
 
virtual void sort (std::vector< MagnitudeType > &evals, Teuchos::RCP< std::vector< int > > perm=Teuchos::null, int n=-1) const =0
 Sort real eigenvalues, optionally returning the permutation vector. More...
 
virtual void sort (std::vector< MagnitudeType > &r_evals, std::vector< MagnitudeType > &i_evals, Teuchos::RCP< std::vector< int > > perm=Teuchos::null, int n=-1) const =0
 Sort complex eigenvalues, optionally returning the permutation vector. More...
 

Detailed Description

template<class MagnitudeType>
class Anasazi::SortManager< MagnitudeType >

Anasazi's templated pure virtual class for managing the sorting of approximate eigenvalues computed by the eigensolver. A concrete implementation of this class is necessary.

Author
Ulrich Hetmaniuk, Rich Lehoucq, and Heidi Thornquist

Definition at line 79 of file AnasaziSortManager.hpp.

Constructor & Destructor Documentation

template<class MagnitudeType >
Anasazi::SortManager< MagnitudeType >::SortManager ( )
inline

Default constructor.

Definition at line 84 of file AnasaziSortManager.hpp.

template<class MagnitudeType >
Anasazi::SortManager< MagnitudeType >::SortManager ( Teuchos::ParameterList pl)
inline

Constructor accepting a Teuchos::ParameterList. This is the default mode for instantiating a SortManager.

Definition at line 87 of file AnasaziSortManager.hpp.

template<class MagnitudeType >
virtual Anasazi::SortManager< MagnitudeType >::~SortManager ( )
inlinevirtual

Destructor.

Definition at line 90 of file AnasaziSortManager.hpp.

Member Function Documentation

template<class MagnitudeType >
virtual void Anasazi::SortManager< MagnitudeType >::sort ( std::vector< MagnitudeType > &  evals,
Teuchos::RCP< std::vector< int > >  perm = Teuchos::null,
int  n = -1 
) const
pure virtual

Sort real eigenvalues, optionally returning the permutation vector.

Parameters
evals[in/out] Vector of length at least n containing the eigenvalues to be sorted.
On output, the first n eigenvalues will be sorted. The rest will be unchanged.
perm[out] Vector of length at least n to store the permutation index (optional).
If specified, on output the first n eigenvalues will contain the permutation indices, in the range [0,n-1], such that evals_out[i] = evals_in[perm[i]]
n[in] Number of values in evals to be sorted. If n == -1, all values will be sorted.

Implemented in Anasazi::BasicSort< MagnitudeType >.

template<class MagnitudeType >
virtual void Anasazi::SortManager< MagnitudeType >::sort ( std::vector< MagnitudeType > &  r_evals,
std::vector< MagnitudeType > &  i_evals,
Teuchos::RCP< std::vector< int > >  perm = Teuchos::null,
int  n = -1 
) const
pure virtual

Sort complex eigenvalues, optionally returning the permutation vector.

This routine takes two vectors, one for each part of a complex eigenvalue. This is helpful for solving real, non-symmetric eigenvalue problems.

Parameters
r_evals[in/out] Vector of length at least n containing the real part of the eigenvalues to be sorted.
On output, the first n eigenvalues will be sorted. The rest will be unchanged.
i_evals[in/out] Vector of length at least n containing the imaginary part of the eigenvalues to be sorted.
On output, the first n eigenvalues will be sorted. The rest will be unchanged.
perm[out] Vector of length at least n to store the permutation index (optional).
If specified, on output the first n eigenvalues will contain the permutation indices, in the range [0,n-1], such that r_evals_out[i] = r_evals_in[perm[i]] and similarly for i_evals.
n[in] Number of values in r_evals, i_evals to be sorted. If n == -1, all values will be sorted.

Implemented in Anasazi::BasicSort< MagnitudeType >.


The documentation for this class was generated from the following file: