Stokhos_PreconditionerFactory.cpp

Go to the documentation of this file.

// $Id$ 
// $Source$ 
// @HEADER
// ***********************************************************************
// 
//                           Stokhos Package
//                 Copyright (2009) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
// 
// 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
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Eric T. Phipps (etphipp@sandia.gov).
// 
// ***********************************************************************
// @HEADER
 
#include "Stokhos_PreconditionerFactory.hpp"
#include "Stokhos_IfpackPreconditionerFactory.hpp"
#include "Stokhos_MLPreconditionerFactory.hpp"
#include "Teuchos_Assert.hpp"
 
Stokhos::PreconditionerFactory::
PreconditionerFactory(const std::string& prec_name,
          const Teuchos::RCP<Teuchos::ParameterList>& params)
{
  if (prec_name == "Ifpack")
    factory = 
      Teuchos::rcp(new Stokhos::IfpackPreconditionerFactory(params));
  else if (prec_name == "ML")
    factory = 
      Teuchos::rcp(new Stokhos::MLPreconditionerFactory(params));
  else
    TEUCHOS_TEST_FOR_EXCEPTION(true, std::logic_error,
           "Error!  Unknown preconditioner type " << prec_name
           << ".  Valid choices are \"Ifpack\" and \"ML\".");
}
 
Teuchos::RCP<Epetra_Operator> 
Stokhos::PreconditionerFactory::
compute(const Teuchos::RCP<Epetra_Operator>& mat, bool compute_prec)
{
  return factory->compute(mat, compute_prec);
}
 
void
Stokhos::PreconditionerFactory::
recompute(const Teuchos::RCP<Epetra_Operator>& mat,
    const Teuchos::RCP<Epetra_Operator>& prec)
{
  factory->recompute(mat, prec);
}