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

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Revision 412 - (show annotations)
Tue Jan 3 00:41:56 2006 UTC (13 years, 7 months ago) by gross
File MIME type: text/plain
File size: 3455 byte(s)
nicer wahy of representing the natrix format is introduced
1 /* $Id$ */
2
3 /**************************************************************/
4
5 /* Paso: SystemMatrix and SystemVector */
6
7 /**************************************************************/
8
9 /* Copyrights by ACcESS Australia 2003,2004,2005,2006 */
10 /* Author: gross@access.edu.au */
11
12 /**************************************************************/
13
14 #ifndef INC_PASO_SYSTEM
15 #define INC_PASO_SYSTEM
16
17 #include "Common.h"
18 #include "SystemMatrixPattern.h"
19 #include "Options.h"
20
21 /**************************************************************/
22
23 /* this struct holds a stiffness matrix: */
24
25 #define FORMAT_CSR 1
26 #define FORMAT_SYM 2
27 #define FORMAT_BLK1 4
28 #define FORMAT_INDEX1 8
29
30 /* matrix type */
31 #define CSC 0
32 #define CSR FORMAT_CSR
33 /* these formats are used in the SCSL context */
34 #define CSC_SYM FORMAT_SYM
35 #define CSR_SYM (FORMAT_CSR+FORMAT_SYM)
36 #define CSC_BLK1 FORMAT_BLK1
37 #define CSR_BLK1 (FORMAT_CSR+FORMAT_BLK1)
38 #define CSC_BLK1_SYM (FORMAT_BLK1+FORMAT_SYM)
39 #define CSR_BLK1_SYM (FORMAT_CSR+FORMAT_BLK1+FORMAT_SYM)
40
41 typedef int Paso_SystemMatrixType;
42
43 typedef struct Paso_SystemMatrix {
44 Paso_SystemMatrixType type;
45 dim_t reference_counter;
46
47 dim_t logical_row_block_size;
48 dim_t logical_col_block_size;
49 dim_t logical_block_size;
50
51 dim_t row_block_size;
52 dim_t col_block_size;
53 dim_t block_size;
54
55 dim_t num_rows;
56 dim_t num_cols;
57
58 Paso_SystemMatrixPattern* pattern;
59
60 dim_t len;
61 double *val;
62
63 double *normalizer; /* vector with a inverse of the absolute row/col sum (set by Solver.c)*/
64 bool_t normalizer_is_valid;
65 void* direct; /* pointer to data needed by the direct solver */
66 void* iterative; /* pointer to data needed by the iterative solver */
67
68 } Paso_SystemMatrix;
69
70 /* interfaces: */
71
72 Paso_SystemMatrix* Paso_SystemMatrix_alloc(Paso_SystemMatrixType,Paso_SystemMatrixPattern*,dim_t,dim_t);
73 Paso_SystemMatrix* Paso_SystemMatrix_reference(Paso_SystemMatrix*);
74 void Paso_SystemMatrix_dealloc(Paso_SystemMatrix*);
75
76 void Paso_SystemMatrix_setValues(Paso_SystemMatrix*,double);
77 void Paso_SystemMatrix_copy(Paso_SystemMatrix*,double*);
78 void Paso_SystemMatrix_add(Paso_SystemMatrix*,dim_t,index_t*, dim_t,dim_t,index_t*,dim_t, double*);
79 void Paso_SystemMatrix_MatrixVector(double alpha, Paso_SystemMatrix* A, double* in, double beta, double* out);
80
81 void Paso_SystemMatrix_saveMM(Paso_SystemMatrix *, char *);
82 void Paso_SystemMatrix_saveHB(Paso_SystemMatrix *, char *);
83 Paso_SystemMatrix* Paso_SystemMatrix_loadMM_toCSR(char *);
84 void Paso_SystemMatrix_nullifyRowsAndCols(Paso_SystemMatrix* A, double* mask_row, double* mask_col, double main_diagonal_value);
85 void Paso_SystemMatrix_setDefaults(Paso_Options*);
86 int Paso_SystemMatrix_getSystemMatrixTypeId(index_t solver, index_t package, bool_t symmetry);
87 Paso_SystemMatrix* Paso_SystemMatrix_getSubmatrix(Paso_SystemMatrix* A,dim_t,index_t*,index_t*);
88 double* Paso_SystemMatrix_borrowNormalization(Paso_SystemMatrix* A);
89
90 #endif /* #ifndef INC_PASO_SYSTEM */
91
92 /*
93 * $Log$
94 * Revision 1.2 2005/09/15 03:44:38 jgs
95 * Merge of development branch dev-02 back to main trunk on 2005-09-15
96 *
97 * Revision 1.1.2.2 2005/09/07 00:59:08 gross
98 * some inconsistent renaming fixed to make the linking work.
99 *
100 * Revision 1.1.2.1 2005/09/05 06:29:47 gross
101 * These files have been extracted from finley to define a stand alone libray for iterative
102 * linear solvers on the ALTIX. main entry through Paso_solve. this version compiles but
103 * has not been tested yet.
104 *
105 *
106 */

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