AnasaziSortManager.hpp

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00001 // @HEADER
00002 // ***********************************************************************
00003 //
00004 //                 Anasazi: Block Eigensolvers Package
00005 //                 Copyright (2004) Sandia Corporation
00006 //
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 //
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov)
00025 //
00026 // ***********************************************************************
00027 // @HEADER
00028 
00029 #ifndef ANASAZI_SORTMANAGER_HPP
00030 #define ANASAZI_SORTMANAGER_HPP
00031 
00047 #include "AnasaziConfigDefs.hpp"
00048 #include "AnasaziTypes.hpp"
00049 #include "Teuchos_TestForException.hpp"
00050 
00051 
00052 
00053 namespace Anasazi {
00054 
00056 
00057 
00060   class SortManagerError : public AnasaziError
00061   {public: SortManagerError(const std::string& what_arg) : AnasaziError(what_arg) {}};
00062 
00064 
00065   template<class ScalarType, class MV, class OP>
00066   class Eigensolver;
00067 
00068   template<class ScalarType, class MV, class OP>
00069   class SortManager {
00070     
00071   public:
00072     
00074     SortManager() {};
00075 
00077     virtual ~SortManager() {};
00078 
00080 
00089     virtual void sort(Eigensolver<ScalarType,MV,OP>* solver, const int n, std::vector<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> &evals, std::vector<int> *perm = 0) const = 0;
00090 
00107     virtual void sort(Eigensolver<ScalarType,MV,OP>* solver, 
00108                       const int n,
00109                       std::vector<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> &r_evals, 
00110                       std::vector<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> &i_evals, 
00111                       std::vector<int> *perm = 0) const = 0;
00112     
00113   };
00114   
00115 }
00116 
00117 #endif // ANASAZI_SORTMANAGER_HPP
00118 

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