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

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Revision 150 - (show annotations)
Thu Sep 15 03:44:45 2005 UTC (14 years, 1 month ago) by jgs
Original Path: trunk/esys2/paso/src/SystemMatrix.h
File MIME type: text/plain
File size: 3231 byte(s)
Merge of development branch dev-02 back to main trunk on 2005-09-15

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

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