paso/src/Solver.h


/*******************************************************
*
* Copyright (c) 2003-2008 by University of Queensland
* Earth Systems Science Computational Center (ESSCC)
* http://www.uq.edu.au/esscc
*
* Primary Business: Queensland, Australia
* Licensed under the Open Software License version 3.0
* http://www.opensource.org/licenses/osl-3.0.php
*
*******************************************************/


#ifndef INC_SOLVER
#define INC_SOLVER

#include "SystemMatrix.h"
#include "performance.h"
#include "Functions.h"

#define PASO_TRACE
/* error codes used in the solver */
#define SOLVER_NO_ERROR 0
#define SOLVER_MAXITER_REACHED 1
#define SOLVER_INPUT_ERROR -1
#define SOLVER_MEMORY_ERROR -9
#define SOLVER_BREAKDOWN -10
#define SOLVER_NEGATIVE_NORM_ERROR -11


static double ONE=1.;
static double ZERO=0.;
static double TOLERANCE_FOR_SCALARS=0.;

/* ILU preconditioner */
struct Paso_Solver_ILU {
  dim_t n_block;
  dim_t n;
  index_t num_colors;
  index_t* colorOf;
  index_t* main_iptr;
  double* factors;
  Paso_Pattern* pattern;
};
typedef struct Paso_Solver_ILU Paso_Solver_ILU;

/* RILU preconditioner */
struct Paso_Solver_RILU {
  dim_t n;
  dim_t n_block;
  dim_t n_F;
  dim_t n_C;
  double* inv_A_FF;
  index_t* A_FF_pivot;
  Paso_SparseMatrix * A_FC;
  Paso_SparseMatrix * A_CF;
  index_t* rows_in_F;
  index_t* rows_in_C;
  index_t* mask_F;
  index_t* mask_C;
  double* x_F;
  double* b_F;
  double* x_C;
  double* b_C;
  struct Paso_Solver_RILU * RILU_of_Schur;
};
typedef struct Paso_Solver_RILU Paso_Solver_RILU;


/* jacobi  preconditioner */

typedef struct Paso_Solver_Jacobi {
  dim_t n_block;
  dim_t n;
  double* values;
  index_t* pivot;
} Paso_Solver_Jacobi;

/* general preconditioner interface */

typedef struct Paso_Solver_Preconditioner {
  dim_t type;
  /* jacobi preconditioner */
  Paso_Solver_Jacobi* jacobi;
  /* ilu preconditioner */
  Paso_Solver_ILU* ilu;
  /* ilu preconditioner */
  Paso_Solver_RILU* rilu;
} Paso_Solver_Preconditioner;

void Paso_Solver(Paso_SystemMatrix*,double*,double*,Paso_Options*,Paso_Performance* pp);
void Paso_Solver_free(Paso_SystemMatrix*);
err_t Paso_Solver_BiCGStab( 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);
err_t Paso_Solver_TFQMR( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, Paso_Performance* pp);
err_t Paso_Solver_MINRES( Paso_SystemMatrix * A, double* B, double * X, dim_t *iter, double * tolerance, double *tol, Paso_Performance* pp);
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);
void Paso_Preconditioner_free(Paso_Solver_Preconditioner*);
void Paso_Solver_setPreconditioner(Paso_SystemMatrix* A,Paso_Options* options);
void Paso_Solver_solvePreconditioner(Paso_SystemMatrix* A,double*,double*);
void Paso_Solver_applyBlockDiagonalMatrix(dim_t n_block,dim_t n,double* D,index_t* pivot,double* x,double* b);

void Paso_Solver_ILU_free(Paso_Solver_ILU * in);
Paso_Solver_ILU* Paso_Solver_getILU(Paso_SparseMatrix * A_p,bool_t verbose);
void Paso_Solver_solveILU(Paso_Solver_ILU * ilu, double * x, double * b);

void Paso_Solver_RILU_free(Paso_Solver_RILU * in);
Paso_Solver_RILU* Paso_Solver_getRILU(Paso_SparseMatrix * A_p,bool_t verbose);
void Paso_Solver_solveRILU(Paso_Solver_RILU * rilu, double * x, double * b);

void Paso_Solver_updateIncompleteSchurComplement(Paso_SparseMatrix* A_CC, Paso_SparseMatrix *A_CF,double* invA_FF,index_t* A_FF_pivot, Paso_SparseMatrix *A_FC);
Paso_Solver_Jacobi* Paso_Solver_getJacobi(Paso_SparseMatrix * A_p);
void Paso_Solver_solveJacobi(Paso_Solver_Jacobi * prec, double * x, double * b);
void Paso_Solver_Jacobi_free(Paso_Solver_Jacobi * in);

err_t Paso_Solver_GMRES2(Paso_Function * F, const double* f0, const double* x0, double * x, dim_t *iter, double* tolerance, Paso_Performance* pp);
err_t Paso_Solver_NewtonGMRES(Paso_Function *F, double *x, Paso_Options* options, Paso_Performance* pp);

Paso_Function * Paso_Function_LinearSystem_alloc(Paso_SystemMatrix* A, double* b, Paso_Options* options);
err_t Paso_Function_LinearSystem_call(Paso_Function * F,double* value, const double* arg, Paso_Performance *pp);
void Paso_Function_LinearSystem_free(Paso_Function * F);
err_t Paso_Function_LinearSystem_setInitialGuess(Paso_SystemMatrix* A, double* x, Paso_Performance *pp);

#endif /* #ifndef INC_SOLVER */
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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