enum_eigen_solver_type.h

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2018 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner

// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.

// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA



#ifndef LIBMESH_ENUM_EIGENSOLVER_TYPE_H
#define LIBMESH_ENUM_EIGENSOLVER_TYPE_H

namespace libMesh {

enum EigenSolverType : int {
                      POWER=0,
                      LAPACK,
                      SUBSPACE,
                      ARNOLDI,
                      LANCZOS,
                      KRYLOVSCHUR,
                      // Invalid
                      INVALID_EIGENSOLVER};

enum EigenProblemType : int {
                       NHEP=0,
                       HEP,
                       GNHEP,
                       GHEP,
                       GHIEP,
                       // Invalid
                       INVALID_EIGENPROBLEMTYPE};



enum PositionOfSpectrum : int {
                         LARGEST_MAGNITUDE=0,
                         SMALLEST_MAGNITUDE,
                         TARGET_MAGNITUDE,
                         LARGEST_REAL,
                         SMALLEST_REAL,
                         TARGET_REAL,
                         LARGEST_IMAGINARY,
                         SMALLEST_IMAGINARY,
                         TARGET_IMAGINARY,
                         // Invalid
                         INVALID_Postion_of_Spectrum,
                         INVALID_POSITION_OF_SPECTRUM};
}

#endif