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F_ILU0.hpp

00001 #ifndef __F_ILU0_H__
00002 #define __F_ILU0_H__
00003 
00034 #include <stdio.h>
00035 #include "FloatVector.hpp"
00036 
00037 #include "AFProductSeqSMatrix.hpp"
00038 
00039 // A= L1*U + R
00040 class F_ILU0 : public AFProductSeqSMatrix
00041 {
00042 protected:
00043 
00044 AFSymMatrix*            origin;         // used to decide to build a compact type
00045 AFSymMatrix*            L1U;                    // A= L1*U + R
00046 
00047 public:
00048 F_ILU0(AFSymMatrix* A);
00049 F_ILU0(F_ILU0& m);                      
00050 virtual ~F_ILU0(){delete L1U;}
00051 
00052 virtual AFloatMatrix* copy(){ return new F_ILU0(*this); }
00053 
00054 virtual int numberOfSubMatrices() const {return 2;}     
00055 virtual AFSymMatrix* getSubMatrix(int i){return 0;}                     // Bi
00056 virtual void setSubMatrix(int i, AFSymMatrix* Bi){}                     // Bi
00057         
00058 virtual FloatVector* solve(FloatVector* b, FloatVector* x=0);   // P*x=b
00059 virtual AFSymMatrix* invert(){return 0;}                                        // P^-1
00060 virtual AFSymMatrix* compact();                                         // L1*U --> A !!! should be reviewed
00061 
00062 virtual void output();
00063 virtual void output(FILE* file){}
00064 };
00065 
00066 #endif
00067 
00068 
00069 
00070 
00071          
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Bernard De Cuyper: Open Project Leader: Concept, design and development.
Bernard De Cuyper & Eddy Fraiha 2002, 2003. Bernard De Cuyper 2004. Open and free, for friendly usage only.
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