Line data    Source code

       1              : /*
       2              :  * Copyright (c) 2011-2012:  G-CSC, Goethe University Frankfurt
       3              :  * Author: Martin Rupp
       4              :  * 
       5              :  * This file is part of UG4.
       6              :  * 
       7              :  * UG4 is free software: you can redistribute it and/or modify it under the
       8              :  * terms of the GNU Lesser General Public License version 3 (as published by the
       9              :  * Free Software Foundation) with the following additional attribution
      10              :  * requirements (according to LGPL/GPL v3 §7):
      11              :  * 
      12              :  * (1) The following notice must be displayed in the Appropriate Legal Notices
      13              :  * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
      14              :  * 
      15              :  * (2) The following notice must be displayed at a prominent place in the
      16              :  * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
      17              :  * 
      18              :  * (3) The following bibliography is recommended for citation and must be
      19              :  * preserved in all covered files:
      20              :  * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
      21              :  *   parallel geometric multigrid solver on hierarchically distributed grids.
      22              :  *   Computing and visualization in science 16, 4 (2013), 151-164"
      23              :  * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
      24              :  *   flexible software system for simulating pde based models on high performance
      25              :  *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
      26              :  * 
      27              :  * This program is distributed in the hope that it will be useful,
      28              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      29              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
      30              :  * GNU Lesser General Public License for more details.
      31              :  */
      32              : 
      33              : 
      34              : // MATRIX_USE_OPERATORS: elementary types like double, float, or template operatored classes: use operators
      35              : ///////////////////////////////////////////////////////////////////////////////////////////////////
      36              : 
      37              : namespace ug{
      38              : 
      39              : template<typename vector_t, typename matrix_t>
      40              : struct mat_operations_class<vector_t, matrix_t, MATRIX_USE_OPERATORS>
      41              : {
      42              :         //! calculates dest = beta1 * A1 *w1;
      43              :         static inline bool MatMult(vector_t &dest, const number &beta1, const matrix_t &A1, const vector_t &w1)
      44              :         {
      45            0 :                 dest = beta1 * A1 * w1;
      46              :                 return true;
      47              :         }
      48              : 
      49              :         //! calculates dest = alpha1*v1 + beta1 * A1 *w1;
      50              :         static inline bool MatMultAdd(vector_t &dest,
      51              :                         const number &alpha1, const vector_t &v1,
      52              :                         const number &beta1, const matrix_t &A1, const vector_t &w1)
      53              :         {
      54            0 :                 dest = alpha1*v1 + beta1 * A1 * w1;
      55              :                 return true;
      56              :         }
      57              :         static inline bool MatMultAdd(vector_t &dest,
      58              :                         const number &alpha1, const vector_t &v1,
      59              :                         const number &alpha2, const vector_t &v2,
      60              :                         const number &beta1, const matrix_t &A1, const vector_t &w1)
      61              :         {
      62              :                 dest = alpha1*v1 + alpha2*v2 + beta1 * A1 * w1;
      63              :                 return true;
      64              :         }
      65              :         static inline bool MatMultAdd(vector_t &dest,
      66              :                         const number &beta1, const matrix_t &A1, const vector_t &w1,
      67              :                         const number &beta2, const matrix_t &A2, const vector_t &w2)
      68              :         {
      69              :                 dest = beta1 * A1 * w1 + beta2 * A2 * w2;
      70              :                 return true;
      71              :         }
      72              :         static inline bool MatMultAdd(vector_t &dest,
      73              :                         const number &alpha1, const vector_t &v1,
      74              :                         const number &beta1, const matrix_t &A1, const vector_t &w1,
      75              :                         const number &beta2, const matrix_t &A2, const vector_t &w2)
      76              :         {
      77              :                 dest = alpha1*v1 + beta1 * A1 * w1 + beta2 * A2 * w2;
      78              :                 return true;
      79              :         }
      80              : 
      81              :         //! calculates dest = beta1 * A1^T *w1;
      82              :         static inline bool MatMultTransposed(vector_t &dest,
      83              :                         const number &beta1, const matrix_t &A1, const vector_t &w1)
      84              :         {
      85              :                 dest = beta1 * A1 * w1;
      86              :                 return true;
      87              :         }
      88              : 
      89              :         //! calculates dest = alpha1*v1 + beta1 * A1^T *w1;
      90              :         static inline bool MatMultTransposedAdd(vector_t &dest,
      91              :                         const number &alpha1, const vector_t &v1,
      92              :                         const number &beta1, const matrix_t &A1, const vector_t &w1)
      93              :         {
      94            0 :                 dest = alpha1*v1 + beta1 * A1 * w1;
      95              :                 return true;
      96              :         }
      97              : };
      98              : 
      99              : }