00001 /* 00002 * Copyright (c) 2001 The AUTHORS 00003 * Romeu Andre' Pieritz, Ph.D. - romeu_pieritz@hotmail.com 00004 * Rafael Mendes, Eng. – mendes_rafael@yahoo.com 00005 * Rodrigo Ferraz de Andrade, Eng. – rferraz@iname.com 00006 * All rights reserved. 00007 * 00008 * Permission to use, copy and distribute this software and its 00009 * documentation for educational and personal use, without fee is hereby granted, 00010 * provided that the above copyright notice and the following 00011 * two paragraphs appear in all copies of this software. 00012 * 00013 * IN NO EVENT SHALL THE AUTHORS BE LIABLE TO ANY PARTY FOR 00014 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT 00015 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE AUTHORS 00016 * HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00017 * 00018 * THE AUTHORS SPECIFICALLY DISCLAIMS ANY WARRANTIES, 00019 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 00020 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HERE UNDER IS 00021 * ON AN "AS IS" BASIS, AND THE AUTHORS HAVE NO OBLIGATION TO 00022 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 00023 * 00024 * SINMEC Lab. - CFD Sinflow Project - http://www.sinmec.ufsc.br/cfd 00025 */ 00026 00027 00028 // File Define 00029 #ifndef __CSFL_MATH_SOLVER_LU__ 00030 #define __CSFL_MATH_SOLVER_LU__ 00031 00032 00033 // Include 00034 #include <csfl/math/solver/solver.h> 00035 00036 00037 // Namespace 00038 namespace csfl { 00039 00040 //============================================================================== 00041 // Class ISolverLU 00042 // Description: Basic class to the solvers objects 00043 //============================================================================== 00044 00045 00046 00047 class ISolverLU : 00048 public ISolver 00049 00054 00055 { 00056 00057 public: 00058 ISolverLU( ILinearSystem * = NULL ); 00059 ISolverLU( ISolverLU * ); 00060 ~ISolverLU(); 00061 00062 void Solve(); 00063 void Solve( ILinearSystem *_lsys ); 00064 00065 bool Transpose() { return isTranspose; } 00066 void SetTranspose( bool _b ) { isTranspose = _b; } 00067 00068 protected: 00069 double **mat; 00070 double *x, *vv; 00071 int *indx; 00072 bool mem, isTranspose; 00073 00074 void Decomposition( double **, int, int *, double * ); 00075 void BackSubstitution( double **, int, int *, double [] ); 00076 00077 void LU(); 00078 00079 void AllocaMemory(); 00080 }; 00081 } // csfl namespace 00082 00083 #endif // __CSFL_MATH_SOLVER_LU__
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