eigenproblem_assembly.h

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/*
 * MAST: Multidisciplinary-design Adaptation and Sensitivity Toolkit
 * Copyright (C) 2013-2020  Manav Bhatia and MAST authors
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef __mast__eigenproblem_assembly__
#define __mast__eigenproblem_assembly__

// MAST includes
#include "base/assembly_base.h"

// libMesh includes
#include "libmesh/sparse_matrix.h"

namespace MAST {
    
    // Forward declerations
    class EigenproblemAssemblyElemOperations;
    
    
    class EigenproblemAssembly:
    public MAST::AssemblyBase {
        
    public:
        
        EigenproblemAssembly();
        
        virtual ~EigenproblemAssembly();
        

        libMesh::SparseMatrix<Real>& A_matrix();
        
        
        libMesh::SparseMatrix<Real>& B_matrix();
        
        
        virtual void
        eigenproblem_assemble(libMesh::SparseMatrix<Real>* A,
                              libMesh::SparseMatrix<Real>* B);
        
        virtual bool
        eigenproblem_sensitivity_assemble (const MAST::FunctionBase& f,
                                           libMesh::SparseMatrix<Real>* sensitivity_A,
                                           libMesh::SparseMatrix<Real>* sensitivity_B);
        
        
        void set_base_solution(const libMesh::NumericVector<Real>& sol,
                               bool if_sens = false);

        
        void clear_base_solution(bool if_sens = false);

        
        bool if_linearized_about_nonzero_solution() const;
        
        
        const libMesh::NumericVector<Real>&
        base_sol(bool if_sens = false) const;
        

        libMesh::NumericVector<Real>& base_sol(bool if_sens = false);
        
        
    protected:
        
        const libMesh::NumericVector<Real> * _base_sol;
        
        const libMesh::NumericVector<Real> * _base_sol_sensitivity;
        
    };
    
}

#endif // __mast__eigenproblem_assembly__