/usr/include/trilinos/AnasaziFactory.hpp is in libtrilinos-anasazi-dev 12.12.1-5.
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// ***********************************************************************
//
// Anasazi: Block Eigensolvers Package
// Copyright 2004 Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
// @HEADER
#ifndef ANASAZI_FACTORY_HPP
#define ANASAZI_FACTORY_HPP
/*! \file AnasaziFactory.hpp
* \brief The Anasazi::Factory provides a factory to produce solver managers.
*/
#include "AnasaziConfigDefs.hpp"
#include "AnasaziBasicEigenproblem.hpp"
#include "AnasaziBlockDavidsonSolMgr.hpp"
#include "AnasaziBlockKrylovSchurSolMgr.hpp"
#include "AnasaziGeneralizedDavidsonSolMgr.hpp"
#include "AnasaziLOBPCGSolMgr.hpp"
#include "AnasaziRTRSolMgr.hpp"
#include "AnasaziSimpleLOBPCGSolMgr.hpp"
#include "AnasaziTraceMinDavidsonSolMgr.hpp"
#include "AnasaziTraceMinSolMgr.hpp"
#include <algorithm>
#include <string>
/*! \class Anasazi::Factory
\brief This provides a factory to build Anasazi solvers using parameter lists.
*/
namespace Anasazi {
class Factory {
public:
/** \brief Create an instance of Anasazi::SolverManager given the string
* name of the solver type.
*
* \param solverType [in] Name of solver type to be created.
* \param problem [in] Anasazi eigenproblem used to define the solver
*
* Throw an exception if the solver with that input name does not exist.
* Otherwise, return a newly created solver object.
*
* \note Some of the solver managers cannot be used with std::complex.
*/
template<class ScalarType, class MV, class OP>
static
Teuchos::RCP<SolverManager<ScalarType,MV,OP> >
create ( const std::string& solverType,
const Teuchos::RCP<Eigenproblem<ScalarType,MV,OP> > problem,
Teuchos::ParameterList &pl ) {
using Teuchos::rcp;
std::string type = solverType;
std::transform(type.begin(), type.end(), type.begin(), ::tolower);
if (type == "block_davidson" || type == "block davidson")
return rcp(new BlockDavidsonSolMgr<ScalarType,MV,OP>(problem, pl));
else if (type == "block_krylov_schur" || type == "block krylov schur")
return rcp(new BlockKrylovSchurSolMgr<ScalarType,MV,OP>(problem, pl));
else if (type == "lobpcg")
return rcp(new LOBPCGSolMgr<ScalarType,MV,OP>(problem, pl));
else if (type == "rtr")
return rcp(new RTRSolMgr<ScalarType,MV,OP>(problem, pl));
else if (type == "simple_lobpcg" || type == "simple lobpcg")
return rcp(new SimpleLOBPCGSolMgr<ScalarType,MV,OP>(problem, pl));
else
TEUCHOS_TEST_FOR_EXCEPTION(true, std::invalid_argument,
"Anasazi::Factory::create: Invalid solver type \"" << solverType << "\".");
}
template<class MV, class OP>
static
Teuchos::RCP<SolverManager<double,MV,OP> >
create ( const std::string& solverType,
const Teuchos::RCP<Eigenproblem<double,MV,OP> > problem,
Teuchos::ParameterList &pl ) {
using Teuchos::rcp;
using ScalarType = double;
std::string type = solverType;
std::transform(type.begin(), type.end(), type.begin(), ::tolower);
if (type == "block_davidson" || type == "block davidson")
return rcp(new BlockDavidsonSolMgr<ScalarType,MV,OP>(problem, pl));
else if (type == "block_krylov_schur" || type == "block krylov schur")
return rcp(new BlockKrylovSchurSolMgr<ScalarType,MV,OP>(problem, pl));
else if (type == "generalized_davidson" || type == "generalized davidson")
return rcp(new GeneralizedDavidsonSolMgr<ScalarType,MV,OP>(problem, pl));
else if (type == "lobpcg")
return rcp(new LOBPCGSolMgr<ScalarType,MV,OP>(problem, pl));
else if (type == "rtr")
return rcp(new RTRSolMgr<ScalarType,MV,OP>(problem, pl));
else if (type == "simple_lobpcg" || type == "simple lobpcg")
return rcp(new SimpleLOBPCGSolMgr<ScalarType,MV,OP>(problem, pl));
else if (type == "TRACE_MIN" || type == "trace min")
return rcp(new Experimental::TraceMinSolMgr<ScalarType,MV,OP>(problem, pl));
else if (type == "trace_min_davidson" || type == "trace min davidson")
return rcp(new Experimental::TraceMinDavidsonSolMgr<ScalarType,MV,OP>(problem, pl));
else
TEUCHOS_TEST_FOR_EXCEPTION( true, std::invalid_argument,
"Anasazi::Factory::create: Invalid solverType type \"" << solverType << "\".");
}
//! Specialize create for BasicEigenproblem type.
template<class ScalarType, class MV, class OP>
static
Teuchos::RCP<SolverManager<ScalarType,MV,OP> >
create ( const std::string& solverType,
const Teuchos::RCP<BasicEigenproblem<ScalarType,MV,OP> > &problem,
Teuchos::ParameterList &pl ) {
Teuchos::RCP<Eigenproblem<ScalarType,MV,OP>> eproblem =
Teuchos::rcp_static_cast<Eigenproblem<ScalarType,MV,OP>>(problem);
return create(solverType, eproblem, pl);
}
};
} // end Anasazi namespace
#endif /* ANASAZI_FACTORY_HPP */
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