Line data    Source code

       1             : // rbOOmit: An implementation of the Certified Reduced Basis method.
       2             : // Copyright (C) 2009, 2010 David J. Knezevic
       3             : 
       4             : // This file is part of rbOOmit.
       5             : 
       6             : // rbOOmit is free software; you can redistribute it and/or
       7             : // modify it under the terms of the GNU Lesser General Public
       8             : // License as published by the Free Software Foundation; either
       9             : // version 2.1 of the License, or (at your option) any later version.
      10             : 
      11             : // rbOOmit is distributed in the hope that it will be useful,
      12             : // but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             : // Lesser General Public License for more details.
      15             : 
      16             : // You should have received a copy of the GNU Lesser General Public
      17             : // License along with this library; if not, write to the Free Software
      18             : // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
      19             : 
      20             : #ifndef LIBMESH_RB_EIM_THETA_H
      21             : #define LIBMESH_RB_EIM_THETA_H
      22             : 
      23             : // rbOOmit includes
      24             : #include "libmesh/rb_theta.h"
      25             : 
      26             : // C++ includes
      27             : 
      28             : namespace libMesh
      29             : {
      30             : 
      31             : class RBParameters;
      32             : class RBEIMEvaluation;
      33             : 
      34             : /**
      35             :  * This class provides functionality required to define an RBTheta
      36             :  * object that arises from an "Empirical Interpolation Method" (EIM)
      37             :  * approximation.
      38             :  *
      39             :  * \author David J. Knezevic
      40             :  * \date 2011
      41             :  */
      42             : class RBEIMTheta : public RBTheta
      43             : {
      44             : public:
      45             : 
      46             :   /**
      47             :    * Constructor.
      48             :    */
      49             :   RBEIMTheta(RBEIMEvaluation & rb_eim_eval_in, unsigned int index_in);
      50             : 
      51             :   /**
      52             :    * Special functions.
      53             :    * This class contains a reference, so it can't be default
      54             :    * copy/move-assigned.
      55             :    */
      56             :   RBEIMTheta (RBEIMTheta &&) = default;
      57             :   RBEIMTheta (const RBEIMTheta &) = default;
      58             :   RBEIMTheta & operator= (const RBEIMTheta &) = delete;
      59             :   RBEIMTheta & operator= (RBEIMTheta &&) = delete;
      60           0 :   ~RBEIMTheta() = default;
      61             : 
      62             :   /**
      63             :    * Evaluate this RBEIMTheta object at the parameter \p mu.
      64             :    * This entails solving the RB EIM approximation and picking
      65             :    * out the appropriate coefficient.
      66             :    */
      67             :   virtual Number evaluate(const RBParameters & mu) override;
      68             : 
      69             :   /**
      70             :    * Evaluate this RBEIMTheta at all parameters in \p mus.
      71             :    */
      72             :   virtual std::vector<Number> evaluate_vec(const std::vector<RBParameters> & mus) override;
      73             : 
      74             :   /**
      75             :    * The RBEIMEvaluation object that this RBEIMTheta is based on.
      76             :    */
      77             :   RBEIMEvaluation & rb_eim_eval;
      78             : 
      79             :   /**
      80             :    * The index of the RB_solution vector that we pick out
      81             :    * from rb_eim_eval to provide the value of the evaluation.
      82             :    */
      83             :   unsigned int index;
      84             : };
      85             : 
      86             : }
      87             : 
      88             : #endif // LIBMESH_RB_EIM_THETA_H