/[escript]/trunk/paso/src/Solver.h
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trunk/paso/src/Solvers/Solver.h revision 682 by robwdcock, Mon Mar 27 02:43:09 2006 UTC trunk/paso/src/Solver.h revision 1933 by artak, Mon Oct 27 04:58:59 2008 UTC
# Line 1  Line 1 
 /* $Id$ */  
1    
2  /*  /*******************************************************
3  ********************************************************************************  *
4  *               Copyright   2006 by ACcESS MNRF                                *  * Copyright (c) 2003-2008 by University of Queensland
5  *                                                                              *  * Earth Systems Science Computational Center (ESSCC)
6  *                 http://www.access.edu.au                                     *  * http://www.uq.edu.au/esscc
7  *           Primary Business: Queensland, Australia                            *  *
8  *     Licensed under the Open Software License version 3.0             *  * Primary Business: Queensland, Australia
9  *        http://www.opensource.org/licenses/osl-3.0.php                        *  * Licensed under the Open Software License version 3.0
10  ********************************************************************************  * http://www.opensource.org/licenses/osl-3.0.php
11  */  *
12    *******************************************************/
13    
14    
15  #ifndef INC_SOLVER  #ifndef INC_SOLVER
16  #define INC_SOLVER  #define INC_SOLVER
17    
18  #include "../SystemMatrix.h"  #include "SystemMatrix.h"
19  #include "../performance.h"  #include "performance.h"
20    #include "Functions.h"
21    
22  #define FINLEY_SOLVER_TRACE  #define PASO_TRACE
23  /* error codes used in the solver */  /* error codes used in the solver */
24  #define SOLVER_NO_ERROR 0  #define SOLVER_NO_ERROR 0
25  #define SOLVER_MAXITER_REACHED 1  #define SOLVER_MAXITER_REACHED 1
26  #define SOLVER_INPUT_ERROR -1  #define SOLVER_INPUT_ERROR -1
27  #define SOLVER_MEMORY_ERROR -9  #define SOLVER_MEMORY_ERROR -9
28  #define SOLVER_BREAKDOWN -10  #define SOLVER_BREAKDOWN -10
29    #define SOLVER_NEGATIVE_NORM_ERROR -11
30    
31    
32  static double ONE=1.;  static double ONE=1.;
33  static double ZERO=0.;  static double ZERO=0.;
34  static double TOLERANCE_FOR_SCALARS=0.;  static double TOLERANCE_FOR_SCALARS=0.;
35    
36    /* jacobi  preconditioner */
37    
38    typedef struct Paso_Solver_Jacobi {
39      dim_t n_block;
40      dim_t n;
41      double* values;
42      index_t* pivot;
43    } Paso_Solver_Jacobi;
44    
45    
46  /* ILU preconditioner */  /* ILU preconditioner */
47  struct Paso_Solver_ILU {  struct Paso_Solver_ILU {
48    dim_t n_block;    dim_t n_block;
# Line 37  struct Paso_Solver_ILU { Line 51  struct Paso_Solver_ILU {
51    index_t* colorOf;    index_t* colorOf;
52    index_t* main_iptr;    index_t* main_iptr;
53    double* factors;    double* factors;
54    Paso_SystemMatrixPattern* pattern;    Paso_Pattern* pattern;
55  };  };
56  typedef struct Paso_Solver_ILU Paso_Solver_ILU;  typedef struct Paso_Solver_ILU Paso_Solver_ILU;
57    
58    /* GS preconditioner */
59    struct Paso_Solver_GS {
60      dim_t n_block;
61      dim_t n;
62      index_t num_colors;
63      index_t* colorOf;
64      index_t* main_iptr;
65      double* diag;
66      Paso_SparseMatrix * factors;
67      Paso_Pattern* pattern;
68      dim_t sweeps;
69      double* x_old;
70    };
71    typedef struct Paso_Solver_GS Paso_Solver_GS;
72    
73  /* RILU preconditioner */  /* RILU preconditioner */
74  struct Paso_Solver_RILU {  struct Paso_Solver_RILU {
75    dim_t n;    dim_t n;
# Line 49  struct Paso_Solver_RILU { Line 78  struct Paso_Solver_RILU {
78    dim_t n_C;    dim_t n_C;
79    double* inv_A_FF;    double* inv_A_FF;
80    index_t* A_FF_pivot;    index_t* A_FF_pivot;
81    Paso_SystemMatrix * A_FC;    Paso_SparseMatrix * A_FC;
82    Paso_SystemMatrix * A_CF;    Paso_SparseMatrix * A_CF;
83    index_t* rows_in_F;    index_t* rows_in_F;
84    index_t* rows_in_C;    index_t* rows_in_C;
85    index_t* mask_F;    index_t* mask_F;
# Line 63  struct Paso_Solver_RILU { Line 92  struct Paso_Solver_RILU {
92  };  };
93  typedef struct Paso_Solver_RILU Paso_Solver_RILU;  typedef struct Paso_Solver_RILU Paso_Solver_RILU;
94    
95    /* AMG preconditioner */
96  /* jacobi  preconditioner */  struct Paso_Solver_AMG {
   
 typedef struct Paso_Solver_Jacobi {  
   dim_t n_block;  
97    dim_t n;    dim_t n;
98    double* values;    dim_t level;
99    index_t* pivot;    dim_t n_block;
100  } Paso_Solver_Jacobi;    dim_t n_F;
101      dim_t n_C;
102      double* inv_A_FF;
103      index_t* A_FF_pivot;
104      Paso_SparseMatrix * A_FC;
105      Paso_SparseMatrix * A_CF;
106      index_t* rows_in_F;
107      index_t* rows_in_C;
108      index_t* mask_F;
109      index_t* mask_C;
110      double* x_F;
111      double* b_F;
112      double* x_C;
113      double* b_C;
114      Paso_SparseMatrix * A;
115      struct Paso_Solver_AMG * AMG_of_Schur;
116    };
117    typedef struct Paso_Solver_AMG Paso_Solver_AMG;
118    
119    
120  /* general preconditioner interface */  /* general preconditioner interface */
121    
# Line 81  typedef struct Paso_Solver_Preconditione Line 125  typedef struct Paso_Solver_Preconditione
125    Paso_Solver_Jacobi* jacobi;    Paso_Solver_Jacobi* jacobi;
126    /* ilu preconditioner */    /* ilu preconditioner */
127    Paso_Solver_ILU* ilu;    Paso_Solver_ILU* ilu;
128    /* ilu preconditioner */    /* rilu preconditioner */
129    Paso_Solver_RILU* rilu;    Paso_Solver_RILU* rilu;
130      /* Gauss-Seidel preconditioner */
131      Paso_Solver_GS* gs;
132      /* amg preconditioner */
133      Paso_Solver_AMG* amg;
134    
135  } Paso_Solver_Preconditioner;  } Paso_Solver_Preconditioner;
136    
137  void Paso_Solver(Paso_SystemMatrix*,double*,double*,Paso_Options*,Paso_Performance* pp);  void Paso_Solver(Paso_SystemMatrix*,double*,double*,Paso_Options*,Paso_Performance* pp);
138  void Paso_Solver_free(Paso_SystemMatrix*);  void Paso_Solver_free(Paso_SystemMatrix*);
139  err_t Paso_Solver_BiCGStab( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance,Paso_Performance* pp);  err_t Paso_Solver_BiCGStab( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
140  err_t Paso_Solver_PCG( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance,Paso_Performance* pp);  err_t Paso_Solver_PCG( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
141  err_t Paso_Solver_GMRES(Paso_SystemMatrix * A, double * r, double * x, dim_t *num_iter, double * tolerance,dim_t length_of_recursion,dim_t restart,Paso_Performance* pp);  err_t Paso_Solver_TFQMR( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
142    err_t Paso_Solver_MINRES( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
143    err_t Paso_Solver_GMRES(Paso_SystemMatrix * A, double * r, double * x, dim_t *num_iter, double * tolerance,dim_t length_of_recursion,dim_t restart, Paso_Performance* pp);
144  void Paso_Preconditioner_free(Paso_Solver_Preconditioner*);  void Paso_Preconditioner_free(Paso_Solver_Preconditioner*);
145  void Paso_Solver_setPreconditioner(Paso_SystemMatrix* A,Paso_Options* options);  void Paso_Solver_setPreconditioner(Paso_SystemMatrix* A,Paso_Options* options);
146  void Paso_Solver_solvePreconditioner(Paso_SystemMatrix* A,double*,double*);  void Paso_Solver_solvePreconditioner(Paso_SystemMatrix* A,double*,double*);
147  void Paso_Solver_applyBlockDiagonalMatrix(dim_t n_block,dim_t n,double* D,index_t* pivot,double* x,double* b);  void Paso_Solver_applyBlockDiagonalMatrix(dim_t n_block,dim_t n,double* D,index_t* pivot,double* x,double* b);
148    
149  void Paso_Solver_ILU_free(Paso_Solver_ILU * in);  void Paso_Solver_ILU_free(Paso_Solver_ILU * in);
150  Paso_Solver_ILU* Paso_Solver_getILU(Paso_SystemMatrix * A_p,bool_t verbose);  Paso_Solver_ILU* Paso_Solver_getILU(Paso_SparseMatrix * A_p,bool_t verbose);
151  void Paso_Solver_solveILU(Paso_Solver_ILU * ilu, double * x, double * b);  void Paso_Solver_solveILU(Paso_Solver_ILU * ilu, double * x, double * b);
152    
153    void Paso_Solver_GS_free(Paso_Solver_GS * in);
154    Paso_Solver_GS* Paso_Solver_getGS(Paso_SparseMatrix * A_p,bool_t verbose);
155    Paso_Solver_GS* Paso_Solver_solveGS1(Paso_SparseMatrix * A_p,bool_t verbose);
156    void Paso_Solver_solveGS(Paso_Solver_GS * gs, double * x, double * b);
157    
158  void Paso_Solver_RILU_free(Paso_Solver_RILU * in);  void Paso_Solver_RILU_free(Paso_Solver_RILU * in);
159  Paso_Solver_RILU* Paso_Solver_getRILU(Paso_SystemMatrix * A_p,bool_t verbose);  Paso_Solver_RILU* Paso_Solver_getRILU(Paso_SparseMatrix * A_p,bool_t verbose);
160  void Paso_Solver_solveRILU(Paso_Solver_RILU * rilu, double * x, double * b);  void Paso_Solver_solveRILU(Paso_Solver_RILU * rilu, double * x, double * b);
161    
162  void Paso_Solver_updateIncompleteSchurComplement(Paso_SystemMatrix* A_CC,Paso_SystemMatrix *A_CF,double*  void Paso_Solver_AMG_free(Paso_Solver_AMG * in);
163  invA_FF,index_t* A_FF_pivot,Paso_SystemMatrix *A_FC);  Paso_Solver_AMG* Paso_Solver_getAMG(Paso_SparseMatrix * A_p,bool_t verbose,dim_t level);
164  Paso_Solver_Jacobi* Paso_Solver_getJacobi(Paso_SystemMatrix * A_p);  void Paso_Solver_solveAMG(Paso_Solver_AMG * amg, double * x, double * b);
165    
166    void Paso_Solver_updateIncompleteSchurComplement(Paso_SparseMatrix* A_CC, Paso_SparseMatrix *A_CF,double* invA_FF,index_t* A_FF_pivot, Paso_SparseMatrix *A_FC);
167    Paso_Solver_Jacobi* Paso_Solver_getJacobi(Paso_SparseMatrix * A_p);
168  void Paso_Solver_solveJacobi(Paso_Solver_Jacobi * prec, double * x, double * b);  void Paso_Solver_solveJacobi(Paso_Solver_Jacobi * prec, double * x, double * b);
169  void Paso_Solver_Jacobi_free(Paso_Solver_Jacobi * in);  void Paso_Solver_Jacobi_free(Paso_Solver_Jacobi * in);
170    
171    err_t Paso_Solver_GMRES2(Paso_Function * F, const double* f0, const double* x0, double * x, dim_t *iter, double* tolerance, Paso_Performance* pp);
172    err_t Paso_Solver_NewtonGMRES(Paso_Function *F, double *x, Paso_Options* options, Paso_Performance* pp);
173    
174    Paso_Function * Paso_Function_LinearSystem_alloc(Paso_SystemMatrix* A, double* b, Paso_Options* options);
175    err_t Paso_Function_LinearSystem_call(Paso_Function * F,double* value, const double* arg, Paso_Performance *pp);
176    void Paso_Function_LinearSystem_free(Paso_Function * F);
177    err_t Paso_Function_LinearSystem_setInitialGuess(Paso_SystemMatrix* A, double* x, Paso_Performance *pp);
178    
179  #endif /* #ifndef INC_SOLVER */  #endif /* #ifndef INC_SOLVER */

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