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TsqrCommFactory.hpp
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00001 // @HEADER
00002 // ***********************************************************************
00003 //
00004 //                 Anasazi: Block Eigensolvers Package
00005 //                 Copyright (2010) 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
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00028 
00029 #ifndef __TSQR_Trilinos_TsqrCommFactory_hpp
00030 #define __TSQR_Trilinos_TsqrCommFactory_hpp
00031 
00035 
00036 #include "Teuchos_RCP.hpp"
00037 #include "Tsqr_MessengerBase.hpp"
00038 
00041 
00042 namespace TSQR {
00043   namespace Trilinos {
00044 
00045     // Forward declaration. TsqrFactory.hpp includes
00046     // TsqrCommFactory.hpp, and TsqrTypeAdaptor.hpp includes
00047     // TsqrFactory.hpp.  We resolve the dependency with a forward
00048     // declaration of TsqrTypeAdaptor here.
00049     template< class S, class LO, class GO, class MV >
00050     class TsqrTypeAdaptor;
00051 
00052     template< class S, class LO, class GO, class MV >
00053     class CommFactory {
00054     public:
00055       typedef S scalar_type;
00056       typedef LO local_ordinal_type;
00057       typedef GO global_ordinal_type;
00058       typedef MV multivector_type;
00059 
00060       typedef TsqrTypeAdaptor< S, LO, GO, MV >    type_adaptor;
00061       typedef typename type_adaptor::comm_type    comm_type;
00062       typedef typename type_adaptor::comm_ptr     comm_ptr;
00063       typedef Teuchos::RCP< MessengerBase< S > >  scalar_messenger_ptr;
00064       typedef Teuchos::RCP< MessengerBase< LO > > ordinal_messenger_ptr;
00065 
00066       virtual void
00067       makeMessengers (const comm_ptr& comm,
00068           scalar_messenger_ptr& scalarMessenger,
00069           ordinal_messenger_ptr& ordinalMessenger) = 0;
00070 
00071       virtual ~CommFactory () {}
00072     };
00073   } // namespace Trilinos
00074 } // namespace TSQR
00075 
00076 #endif // __TSQR_Trilinos_TsqrCommFactory_hpp
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