Anasazi::SortManager< MagnitudeType > Class Template Reference

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 >:

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 47 of file AnasaziSortManager.hpp.

Constructor & Destructor Documentation

template<class MagnitudeType >

Anasazi::SortManager< MagnitudeType >::SortManager ( )

inline

Default constructor.

Definition at line 52 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 55 of file AnasaziSortManager.hpp.

template<class MagnitudeType >

virtual Anasazi::SortManager< MagnitudeType >::~SortManager ( )

inlinevirtual

Destructor.

Definition at line 58 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 >.

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

• AnasaziSortManager.hpp