/[escript]/trunk/paso/src/SystemMatrix.h
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Contents of /trunk/paso/src/SystemMatrix.h

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Revision 633 - (show annotations)
Thu Mar 23 05:37:00 2006 UTC (13 years, 5 months ago) by dhawcroft
File MIME type: text/plain
File size: 4290 byte(s)


1 /* $Id$ */
2
3
4 /*
5 ********************************************************************************
6 * Copyright 2006 by ACcESS MNRF *
7 * *
8 * http://www.access.edu.au *
9 * Primary Business: Queensland, Australia *
10 * Licensed under the Open Software License version 3.0 *
11 * http://www.opensource.org/licenses/osl-3.0.php *
12 ********************************************************************************
13 */
14
15 /**************************************************************/
16
17 /* Paso: SystemMatrix and SystemVector */
18
19 /**************************************************************/
20
21 /* Copyrights by ACcESS Australia 2003,2004,2005,2006 */
22 /* Author: gross@access.edu.au */
23
24 /**************************************************************/
25
26 #ifndef INC_PASO_SYSTEM
27 #define INC_PASO_SYSTEM
28
29 #include "Common.h"
30 #include "SystemMatrixPattern.h"
31 #include "Options.h"
32
33 /**************************************************************/
34
35 /* this struct holds a stiffness matrix: */
36
37 #define MATRIX_FORMAT_DEFAULT 0
38 #define MATRIX_FORMAT_CSC 1
39 #define MATRIX_FORMAT_SYM 2
40 #define MATRIX_FORMAT_BLK1 4
41 #define MATRIX_FORMAT_OFFSET1 8
42
43 typedef int Paso_SystemMatrixType;
44
45 typedef struct Paso_SystemMatrix {
46 Paso_SystemMatrixType type;
47 dim_t reference_counter;
48
49 dim_t logical_row_block_size;
50 dim_t logical_col_block_size;
51 dim_t logical_block_size;
52
53 dim_t row_block_size;
54 dim_t col_block_size;
55 dim_t block_size;
56
57 dim_t num_rows;
58 dim_t num_cols;
59
60 Paso_SystemMatrixPattern* pattern;
61
62 dim_t len;
63 double *val;
64
65 double *normalizer; /* vector with a inverse of the absolute row/col sum (set by Solver.c)*/
66 bool_t normalizer_is_valid;
67 index_t solver_package; /* package controling the solver pointer */
68 void* solver; /* pointer to data needed by a solver */
69
70 } Paso_SystemMatrix;
71
72 /* interfaces: */
73
74 Paso_SystemMatrix* Paso_SystemMatrix_alloc(Paso_SystemMatrixType,Paso_SystemMatrixPattern*,dim_t,dim_t);
75 Paso_SystemMatrix* Paso_SystemMatrix_reference(Paso_SystemMatrix*);
76 void Paso_SystemMatrix_dealloc(Paso_SystemMatrix*);
77
78 void Paso_SystemMatrix_setValues(Paso_SystemMatrix*,double);
79 void Paso_SystemMatrix_copy(Paso_SystemMatrix*,double*);
80 void Paso_SystemMatrix_add(Paso_SystemMatrix*,dim_t,index_t*, dim_t,dim_t,index_t*,dim_t, double*);
81 void Paso_SystemMatrix_MatrixVector(double alpha, Paso_SystemMatrix* A, double* in, double beta, double* out);
82 void Paso_SystemMatrix_MatrixVector_CSC_OFFSET0(double alpha, Paso_SystemMatrix* A, double* in, double beta, double* out);
83 void Paso_SystemMatrix_MatrixVector_CSC_OFFSET1(double alpha, Paso_SystemMatrix* A, double* in, double beta, double* out);
84 void Paso_SystemMatrix_MatrixVector_CSR_OFFSET0(double alpha, Paso_SystemMatrix* A, double* in, double beta, double* out);
85 void Paso_SystemMatrix_MatrixVector_CSR_OFFSET1(double alpha, Paso_SystemMatrix* A, double* in, double beta, double* out);
86
87 void Paso_SystemMatrix_saveMM(Paso_SystemMatrix *, char *);
88 void Paso_SystemMatrix_saveHB(Paso_SystemMatrix *, char *);
89 Paso_SystemMatrix* Paso_SystemMatrix_loadMM_toCSR(char *);
90 void Paso_SystemMatrix_nullifyRowsAndCols(Paso_SystemMatrix* A, double* mask_row, double* mask_col, double main_diagonal_value);
91 void Paso_SystemMatrix_setDefaults(Paso_Options*);
92 int Paso_SystemMatrix_getSystemMatrixTypeId(index_t solver, index_t package, bool_t symmetry);
93 Paso_SystemMatrix* Paso_SystemMatrix_getSubmatrix(Paso_SystemMatrix* A,dim_t,index_t*,index_t*);
94 double* Paso_SystemMatrix_borrowNormalization(Paso_SystemMatrix* A);
95
96 #endif /* #ifndef INC_PASO_SYSTEM */
97
98 /*
99 * $Log$
100 * Revision 1.2 2005/09/15 03:44:38 jgs
101 * Merge of development branch dev-02 back to main trunk on 2005-09-15
102 *
103 * Revision 1.1.2.2 2005/09/07 00:59:08 gross
104 * some inconsistent renaming fixed to make the linking work.
105 *
106 * Revision 1.1.2.1 2005/09/05 06:29:47 gross
107 * These files have been extracted from finley to define a stand alone libray for iterative
108 * linear solvers on the ALTIX. main entry through Paso_solve. this version compiles but
109 * has not been tested yet.
110 *
111 *
112 */

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