/[escript]/trunk/paso/src/Solver.h
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Annotation of /trunk/paso/src/Solver.h

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Revision 1811 - (hide annotations)
Thu Sep 25 23:11:13 2008 UTC (11 years, 2 months ago) by ksteube
File MIME type: text/plain
File size: 4576 byte(s)
Copyright updated in all files

1 ksteube 1312
2     /*******************************************************
3 ksteube 1811 *
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 dhawcroft 631
14 ksteube 1811
15 jgs 150 #ifndef INC_SOLVER
16     #define INC_SOLVER
17    
18 gross 700 #include "SystemMatrix.h"
19     #include "performance.h"
20 gross 1476 #include "Functions.h"
21 jgs 150
22 ksteube 1312 #define PASO_TRACE
23 jgs 150 /* error codes used in the solver */
24     #define SOLVER_NO_ERROR 0
25     #define SOLVER_MAXITER_REACHED 1
26     #define SOLVER_INPUT_ERROR -1
27     #define SOLVER_MEMORY_ERROR -9
28     #define SOLVER_BREAKDOWN -10
29 artak 1787 #define SOLVER_NEGATIVE_NORM_ERROR -11
30 jgs 150
31 artak 1787
32 jgs 154 static double ONE=1.;
33     static double ZERO=0.;
34     static double TOLERANCE_FOR_SCALARS=0.;
35 jgs 150
36     /* ILU preconditioner */
37     struct Paso_Solver_ILU {
38 gross 431 dim_t n_block;
39 jgs 150 dim_t n;
40 gross 431 index_t num_colors;
41     index_t* colorOf;
42     index_t* main_iptr;
43     double* factors;
44 ksteube 1312 Paso_Pattern* pattern;
45 jgs 150 };
46     typedef struct Paso_Solver_ILU Paso_Solver_ILU;
47    
48 gross 430 /* RILU preconditioner */
49     struct Paso_Solver_RILU {
50     dim_t n;
51     dim_t n_block;
52     dim_t n_F;
53     dim_t n_C;
54     double* inv_A_FF;
55     index_t* A_FF_pivot;
56 ksteube 1312 Paso_SparseMatrix * A_FC;
57     Paso_SparseMatrix * A_CF;
58 gross 430 index_t* rows_in_F;
59     index_t* rows_in_C;
60     index_t* mask_F;
61     index_t* mask_C;
62     double* x_F;
63     double* b_F;
64     double* x_C;
65     double* b_C;
66     struct Paso_Solver_RILU * RILU_of_Schur;
67     };
68     typedef struct Paso_Solver_RILU Paso_Solver_RILU;
69 jgs 150
70 gross 430
71 jgs 150 /* jacobi preconditioner */
72    
73     typedef struct Paso_Solver_Jacobi {
74     dim_t n_block;
75     dim_t n;
76     double* values;
77     index_t* pivot;
78     } Paso_Solver_Jacobi;
79    
80     /* general preconditioner interface */
81    
82     typedef struct Paso_Solver_Preconditioner {
83     dim_t type;
84     /* jacobi preconditioner */
85     Paso_Solver_Jacobi* jacobi;
86     /* ilu preconditioner */
87     Paso_Solver_ILU* ilu;
88 gross 430 /* ilu preconditioner */
89     Paso_Solver_RILU* rilu;
90 jgs 150 } Paso_Solver_Preconditioner;
91    
92 gross 584 void Paso_Solver(Paso_SystemMatrix*,double*,double*,Paso_Options*,Paso_Performance* pp);
93 jgs 150 void Paso_Solver_free(Paso_SystemMatrix*);
94 ksteube 1312 err_t Paso_Solver_BiCGStab( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
95     err_t Paso_Solver_PCG( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
96 artak 1703 err_t Paso_Solver_TFQMR( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
97 artak 1787 err_t Paso_Solver_MINRES( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, double *tol, Paso_Performance* pp);
98 ksteube 1312 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);
99 jgs 150 void Paso_Preconditioner_free(Paso_Solver_Preconditioner*);
100     void Paso_Solver_setPreconditioner(Paso_SystemMatrix* A,Paso_Options* options);
101     void Paso_Solver_solvePreconditioner(Paso_SystemMatrix* A,double*,double*);
102     void Paso_Solver_applyBlockDiagonalMatrix(dim_t n_block,dim_t n,double* D,index_t* pivot,double* x,double* b);
103 gross 431
104 jgs 150 void Paso_Solver_ILU_free(Paso_Solver_ILU * in);
105 ksteube 1312 Paso_Solver_ILU* Paso_Solver_getILU(Paso_SparseMatrix * A_p,bool_t verbose);
106 jgs 150 void Paso_Solver_solveILU(Paso_Solver_ILU * ilu, double * x, double * b);
107 gross 431
108     void Paso_Solver_RILU_free(Paso_Solver_RILU * in);
109 ksteube 1312 Paso_Solver_RILU* Paso_Solver_getRILU(Paso_SparseMatrix * A_p,bool_t verbose);
110 gross 431 void Paso_Solver_solveRILU(Paso_Solver_RILU * rilu, double * x, double * b);
111    
112 ksteube 1312 void Paso_Solver_updateIncompleteSchurComplement(Paso_SparseMatrix* A_CC, Paso_SparseMatrix *A_CF,double* invA_FF,index_t* A_FF_pivot, Paso_SparseMatrix *A_FC);
113     Paso_Solver_Jacobi* Paso_Solver_getJacobi(Paso_SparseMatrix * A_p);
114 jgs 150 void Paso_Solver_solveJacobi(Paso_Solver_Jacobi * prec, double * x, double * b);
115     void Paso_Solver_Jacobi_free(Paso_Solver_Jacobi * in);
116    
117 gross 1639 err_t Paso_Solver_GMRES2(Paso_Function * F, const double* f0, const double* x0, double * x, dim_t *iter, double* tolerance, Paso_Performance* pp);
118 gross 1476 err_t Paso_Solver_NewtonGMRES(Paso_Function *F, double *x, Paso_Options* options, Paso_Performance* pp);
119    
120 gross 1639 Paso_Function * Paso_Function_LinearSystem_alloc(Paso_SystemMatrix* A, double* b, Paso_Options* options);
121 gross 1804 err_t Paso_Function_LinearSystem_call(Paso_Function * F,double* value, const double* arg, Paso_Performance *pp);
122 gross 1639 void Paso_Function_LinearSystem_free(Paso_Function * F);
123 gross 1804 err_t Paso_Function_LinearSystem_setInitialGuess(Paso_SystemMatrix* A, double* x, Paso_Performance *pp);
124 gross 1476
125 jgs 150 #endif /* #ifndef INC_SOLVER */

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