/[escript]/trunk/paso/src/Solver.h
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trunk/paso/src/Solvers/Solver.h revision 430 by gross, Wed Jan 11 06:40:50 2006 UTC trunk/paso/src/Solver.h revision 1862 by artak, Wed Oct 8 06:30:50 2008 UTC
# Line 1  Line 1 
1  /* $Id$ */  
2    /*******************************************************
3    *
4    * Copyright (c) 2003-2008 by University of Queensland
5    * Earth Systems Science Computational Center (ESSCC)
6    * http://www.uq.edu.au/esscc
7    *
8    * Primary Business: Queensland, Australia
9    * 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"
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;
49      dim_t n;
50      index_t num_colors;
51      index_t* colorOf;
52      index_t* main_iptr;
53      double* factors;
54      Paso_Pattern* pattern;
55    };
56    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 */
74    struct Paso_Solver_RILU {
75    dim_t n;    dim_t n;
76    dim_t n_block;    dim_t n_block;
77    dim_t n_F;    dim_t n_F;
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 35  struct Paso_Solver_ILU { Line 88  struct Paso_Solver_ILU {
88    double* b_F;    double* b_F;
89    double* x_C;    double* x_C;
90    double* b_C;    double* b_C;
91    struct Paso_Solver_ILU * ILU_of_Schur;    struct Paso_Solver_RILU * RILU_of_Schur;
92  };  };
93  typedef struct Paso_Solver_ILU Paso_Solver_ILU;  typedef struct Paso_Solver_RILU Paso_Solver_RILU;
94    
95  /* RILU preconditioner */  /* AMG preconditioner */
96  struct Paso_Solver_RILU {  struct Paso_Solver_AMG {
97    dim_t n;    dim_t n;
98    dim_t n_block;    dim_t n_block;
99    dim_t n_F;    dim_t n_F;
100    dim_t n_C;    dim_t n_C;
101    double* inv_A_FF;    double* inv_A_FF;
102    index_t* A_FF_pivot;    index_t* A_FF_pivot;
103    Paso_SystemMatrix * A_FC;    Paso_SparseMatrix * A_FC;
104    Paso_SystemMatrix * A_CF;    Paso_SparseMatrix * A_CF;
105    index_t* rows_in_F;    index_t* rows_in_F;
106    index_t* rows_in_C;    index_t* rows_in_C;
107    index_t* mask_F;    index_t* mask_F;
# Line 57  struct Paso_Solver_RILU { Line 110  struct Paso_Solver_RILU {
110    double* b_F;    double* b_F;
111    double* x_C;    double* x_C;
112    double* b_C;    double* b_C;
113    struct Paso_Solver_RILU * RILU_of_Schur;    struct Paso_Solver_AMG * AMG_of_Schur;
114  };  };
115  typedef struct Paso_Solver_RILU Paso_Solver_RILU;  typedef struct Paso_Solver_AMG Paso_Solver_AMG;
   
116    
 /* jacobi  preconditioner */  
   
 typedef struct Paso_Solver_Jacobi {  
   dim_t n_block;  
   dim_t n;  
   double* values;  
   index_t* pivot;  
 } Paso_Solver_Jacobi;  
117    
118  /* general preconditioner interface */  /* general preconditioner interface */
119    
# Line 79  typedef struct Paso_Solver_Preconditione Line 123  typedef struct Paso_Solver_Preconditione
123    Paso_Solver_Jacobi* jacobi;    Paso_Solver_Jacobi* jacobi;
124    /* ilu preconditioner */    /* ilu preconditioner */
125    Paso_Solver_ILU* ilu;    Paso_Solver_ILU* ilu;
126    /* ilu preconditioner */    /* rilu preconditioner */
127    Paso_Solver_RILU* rilu;    Paso_Solver_RILU* rilu;
128      /* Gauss-Seidel preconditioner */
129      Paso_Solver_GS* gs;
130      /* amg preconditioner */
131      Paso_Solver_AMG* amg;
132    
133  } Paso_Solver_Preconditioner;  } Paso_Solver_Preconditioner;
134    
135  void Paso_Solver(Paso_SystemMatrix*,double*,double*,Paso_Options*);  void Paso_Solver(Paso_SystemMatrix*,double*,double*,Paso_Options*,Paso_Performance* pp);
136  void Paso_Solver_free(Paso_SystemMatrix*);  void Paso_Solver_free(Paso_SystemMatrix*);
137  err_t Paso_Solver_BiCGStab( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance);  err_t Paso_Solver_BiCGStab( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
138  err_t Paso_Solver_PCG( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance);  err_t Paso_Solver_PCG( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
139  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);  err_t Paso_Solver_TFQMR( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
140    err_t Paso_Solver_MINRES( 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);
142  void Paso_Preconditioner_free(Paso_Solver_Preconditioner*);  void Paso_Preconditioner_free(Paso_Solver_Preconditioner*);
143  void Paso_Solver_setPreconditioner(Paso_SystemMatrix* A,Paso_Options* options);  void Paso_Solver_setPreconditioner(Paso_SystemMatrix* A,Paso_Options* options);
144  void Paso_Solver_solvePreconditioner(Paso_SystemMatrix* A,double*,double*);  void Paso_Solver_solvePreconditioner(Paso_SystemMatrix* A,double*,double*);
145  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);
146    
147  void Paso_Solver_ILU_free(Paso_Solver_ILU * in);  void Paso_Solver_ILU_free(Paso_Solver_ILU * in);
148  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);
149  void Paso_Solver_solveILU(Paso_Solver_ILU * ilu, double * x, double * b);  void Paso_Solver_solveILU(Paso_Solver_ILU * ilu, double * x, double * b);
150  void Paso_Solver_updateIncompleteSchurComplement(Paso_SystemMatrix* A_CC,Paso_SystemMatrix *A_CF,double* invA_FF,index_t* A_FF_pivot,Paso_SystemMatrix *A_FC);  
151  Paso_Solver_Jacobi* Paso_Solver_getJacobi(Paso_SystemMatrix * A_p);  void Paso_Solver_GS_free(Paso_Solver_GS * in);
152    Paso_Solver_GS* Paso_Solver_getGS(Paso_SparseMatrix * A_p,bool_t verbose);
153    void Paso_Solver_solveGS(Paso_Solver_GS * gs, double * x, double * b);
154    
155    void Paso_Solver_RILU_free(Paso_Solver_RILU * in);
156    Paso_Solver_RILU* Paso_Solver_getRILU(Paso_SparseMatrix * A_p,bool_t verbose);
157    void Paso_Solver_solveRILU(Paso_Solver_RILU * rilu, double * x, double * b);
158    
159    void Paso_Solver_AMG_free(Paso_Solver_AMG * in);
160    Paso_Solver_AMG* Paso_Solver_getAMG(Paso_SparseMatrix * A_p,bool_t verbose);
161    void Paso_Solver_solveAMG(Paso_Solver_AMG * amg, double * x, double * b);
162    
163    void Paso_Solver_updateIncompleteSchurComplement(Paso_SparseMatrix* A_CC, Paso_SparseMatrix *A_CF,double* invA_FF,index_t* A_FF_pivot, Paso_SparseMatrix *A_FC);
164    Paso_Solver_Jacobi* Paso_Solver_getJacobi(Paso_SparseMatrix * A_p);
165  void Paso_Solver_solveJacobi(Paso_Solver_Jacobi * prec, double * x, double * b);  void Paso_Solver_solveJacobi(Paso_Solver_Jacobi * prec, double * x, double * b);
166  void Paso_Solver_Jacobi_free(Paso_Solver_Jacobi * in);  void Paso_Solver_Jacobi_free(Paso_Solver_Jacobi * in);
167    
168    err_t Paso_Solver_GMRES2(Paso_Function * F, const double* f0, const double* x0, double * x, dim_t *iter, double* tolerance, Paso_Performance* pp);
169    err_t Paso_Solver_NewtonGMRES(Paso_Function *F, double *x, Paso_Options* options, Paso_Performance* pp);
170    
171    Paso_Function * Paso_Function_LinearSystem_alloc(Paso_SystemMatrix* A, double* b, Paso_Options* options);
172    err_t Paso_Function_LinearSystem_call(Paso_Function * F,double* value, const double* arg, Paso_Performance *pp);
173    void Paso_Function_LinearSystem_free(Paso_Function * F);
174    err_t Paso_Function_LinearSystem_setInitialGuess(Paso_SystemMatrix* A, double* x, Paso_Performance *pp);
175    
176  #endif /* #ifndef INC_SOLVER */  #endif /* #ifndef INC_SOLVER */

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