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

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Revision 1902 - (hide annotations)
Wed Oct 22 03:54:14 2008 UTC (10 years, 10 months ago) by artak
File MIME type: text/plain
File size: 5931 byte(s)
some bugs fixed in coresening methods
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 artak 1819 /* 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 jgs 150 /* ILU preconditioner */
47     struct Paso_Solver_ILU {
48 gross 431 dim_t n_block;
49 jgs 150 dim_t n;
50 gross 431 index_t num_colors;
51     index_t* colorOf;
52     index_t* main_iptr;
53     double* factors;
54 ksteube 1312 Paso_Pattern* pattern;
55 jgs 150 };
56     typedef struct Paso_Solver_ILU Paso_Solver_ILU;
57    
58 artak 1819 /* 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 artak 1823 dim_t sweeps;
69     double* x_old;
70 artak 1819 };
71     typedef struct Paso_Solver_GS Paso_Solver_GS;
72    
73 gross 430 /* RILU preconditioner */
74     struct Paso_Solver_RILU {
75     dim_t n;
76     dim_t n_block;
77     dim_t n_F;
78     dim_t n_C;
79     double* inv_A_FF;
80     index_t* A_FF_pivot;
81 ksteube 1312 Paso_SparseMatrix * A_FC;
82     Paso_SparseMatrix * A_CF;
83 gross 430 index_t* rows_in_F;
84     index_t* rows_in_C;
85     index_t* mask_F;
86     index_t* mask_C;
87     double* x_F;
88     double* b_F;
89     double* x_C;
90     double* b_C;
91     struct Paso_Solver_RILU * RILU_of_Schur;
92     };
93     typedef struct Paso_Solver_RILU Paso_Solver_RILU;
94 jgs 150
95 artak 1842 /* AMG preconditioner */
96     struct Paso_Solver_AMG {
97     dim_t n;
98 artak 1890 dim_t level;
99 artak 1842 dim_t n_block;
100     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 artak 1890 Paso_SparseMatrix * A;
115 artak 1842 struct Paso_Solver_AMG * AMG_of_Schur;
116     };
117     typedef struct Paso_Solver_AMG Paso_Solver_AMG;
118 gross 430
119 jgs 150
120     /* general preconditioner interface */
121    
122     typedef struct Paso_Solver_Preconditioner {
123     dim_t type;
124     /* jacobi preconditioner */
125     Paso_Solver_Jacobi* jacobi;
126     /* ilu preconditioner */
127     Paso_Solver_ILU* ilu;
128 artak 1819 /* rilu preconditioner */
129 gross 430 Paso_Solver_RILU* rilu;
130 artak 1819 /* Gauss-Seidel preconditioner */
131     Paso_Solver_GS* gs;
132 artak 1842 /* amg preconditioner */
133     Paso_Solver_AMG* amg;
134    
135 jgs 150 } Paso_Solver_Preconditioner;
136    
137 gross 584 void Paso_Solver(Paso_SystemMatrix*,double*,double*,Paso_Options*,Paso_Performance* pp);
138 jgs 150 void Paso_Solver_free(Paso_SystemMatrix*);
139 ksteube 1312 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);
141 artak 1703 err_t Paso_Solver_TFQMR( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
142 artak 1862 err_t Paso_Solver_MINRES( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
143 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);
144 jgs 150 void Paso_Preconditioner_free(Paso_Solver_Preconditioner*);
145     void Paso_Solver_setPreconditioner(Paso_SystemMatrix* A,Paso_Options* options);
146     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);
148 gross 431
149 jgs 150 void Paso_Solver_ILU_free(Paso_Solver_ILU * in);
150 ksteube 1312 Paso_Solver_ILU* Paso_Solver_getILU(Paso_SparseMatrix * A_p,bool_t verbose);
151 jgs 150 void Paso_Solver_solveILU(Paso_Solver_ILU * ilu, double * x, double * b);
152 gross 431
153 artak 1819 void Paso_Solver_GS_free(Paso_Solver_GS * in);
154     Paso_Solver_GS* Paso_Solver_getGS(Paso_SparseMatrix * A_p,bool_t verbose);
155 artak 1902 Paso_Solver_GS* Paso_Solver_getGS1(Paso_SparseMatrix * A_p,bool_t verbose);
156 artak 1819 void Paso_Solver_solveGS(Paso_Solver_GS * gs, double * x, double * b);
157    
158 gross 431 void Paso_Solver_RILU_free(Paso_Solver_RILU * in);
159 ksteube 1312 Paso_Solver_RILU* Paso_Solver_getRILU(Paso_SparseMatrix * A_p,bool_t verbose);
160 gross 431 void Paso_Solver_solveRILU(Paso_Solver_RILU * rilu, double * x, double * b);
161    
162 artak 1842 void Paso_Solver_AMG_free(Paso_Solver_AMG * in);
163 artak 1890 Paso_Solver_AMG* Paso_Solver_getAMG(Paso_SparseMatrix * A_p,bool_t verbose,dim_t level);
164 artak 1842 void Paso_Solver_solveAMG(Paso_Solver_AMG * amg, double * x, double * b);
165    
166 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);
167     Paso_Solver_Jacobi* Paso_Solver_getJacobi(Paso_SparseMatrix * A_p);
168 jgs 150 void Paso_Solver_solveJacobi(Paso_Solver_Jacobi * prec, double * x, double * b);
169     void Paso_Solver_Jacobi_free(Paso_Solver_Jacobi * in);
170    
171 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);
172 gross 1476 err_t Paso_Solver_NewtonGMRES(Paso_Function *F, double *x, Paso_Options* options, Paso_Performance* pp);
173    
174 gross 1639 Paso_Function * Paso_Function_LinearSystem_alloc(Paso_SystemMatrix* A, double* b, Paso_Options* options);
175 gross 1804 err_t Paso_Function_LinearSystem_call(Paso_Function * F,double* value, const double* arg, Paso_Performance *pp);
176 gross 1639 void Paso_Function_LinearSystem_free(Paso_Function * F);
177 gross 1804 err_t Paso_Function_LinearSystem_setInitialGuess(Paso_SystemMatrix* A, double* x, Paso_Performance *pp);
178 gross 1476
179 jgs 150 #endif /* #ifndef INC_SOLVER */

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