/[escript]/trunk/paso/src/SystemMatrix_saveMM.c
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Contents of /trunk/paso/src/SystemMatrix_saveMM.c

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Revision 155 - (show annotations)
Wed Nov 9 02:02:19 2005 UTC (13 years, 11 months ago) by jgs
File MIME type: text/plain
File size: 2749 byte(s)
move all directories from trunk/esys2 into trunk and remove esys2

1 /* $Id$ */
2
3 /**************************************************************/
4
5 /* Paso: SystemMatrix is saved to Matrix Market format */
6
7 /**************************************************************/
8
9 /* Copyrights by ACcESS Australia 2003,2004 */
10 /* Author: davies@access.edu.au */
11
12 /**************************************************************/
13
14 #include "Paso.h"
15 #include "mmio.h"
16 #include "SystemMatrix.h"
17
18 void Paso_SystemMatrix_saveMM(Paso_SystemMatrix * A_p, char * fileName_p) {
19
20 int iRow, iCol, iPtr,ir,ic;
21
22 /* open the file */
23 FILE * fileHandle_p = fopen(fileName_p, "w");
24 if (fileHandle_p==NULL) {
25 Paso_setError(IO_ERROR,"file could not be opened for writing");
26 return;
27 }
28
29 /* set the matrix code */
30 MM_typecode matrixCode;
31 mm_initialize_typecode(&matrixCode);
32 mm_set_matrix(&matrixCode);
33 mm_set_coordinate(&matrixCode);
34 mm_set_real(&matrixCode);
35
36 mm_write_banner(fileHandle_p, matrixCode);
37 mm_write_mtx_crd_size(fileHandle_p, A_p->num_rows*A_p->row_block_size, A_p->num_cols*A_p->col_block_size,A_p->len);
38
39 switch(A_p->type) {
40 case CSR:
41 for (iRow = 0; iRow< A_p->pattern->n_ptr; iRow++) {
42 for (ir = 0; ir< A_p->row_block_size; ir++) {
43 for (iPtr = A_p->pattern->ptr[iRow] - PTR_OFFSET;iPtr < A_p->pattern->ptr[iRow+1] - PTR_OFFSET; iPtr++) {
44 for (ic = 0; ic< A_p->col_block_size; ic++) {
45 fprintf(fileHandle_p, "%12d %12d %e\n",
46 iRow*A_p->row_block_size+ir+ 1,
47 (A_p->pattern->index[iPtr]-INDEX_OFFSET)*A_p->col_block_size+ic+1,
48 A_p->val[iPtr*A_p->block_size+ir+A_p->row_block_size*ic]);
49 }
50 }
51 }
52 }
53 break;
54 case CSC:
55 for (iCol = 0; iCol< A_p->pattern->n_ptr; iCol++) {
56 for (ic = 0; ic< A_p->col_block_size; ic++) {
57 for (iPtr = A_p->pattern->ptr[iCol] - PTR_OFFSET;iPtr < A_p->pattern->ptr[iCol+1] - PTR_OFFSET; iPtr++) {
58 for (ir = 0; ir< A_p->row_block_size; ir++) {
59 fprintf(fileHandle_p, "%12d %12d %e\n",
60 (A_p->pattern->index[iPtr]-INDEX_OFFSET)*A_p->row_block_size+ir+1,
61 iCol*A_p->col_block_size+ic+ 1,
62 A_p->val[iPtr*A_p->block_size+ir+A_p->row_block_size*ic]);
63 }
64 }
65 }
66 }
67 }
68
69 /* close the file */
70 fclose(fileHandle_p);
71
72 return;
73 }
74
75 /*
76 * $Log$
77 * Revision 1.2 2005/09/15 03:44:39 jgs
78 * Merge of development branch dev-02 back to main trunk on 2005-09-15
79 *
80 * Revision 1.1.2.1 2005/09/05 06:29:48 gross
81 * These files have been extracted from finley to define a stand alone libray for iterative
82 * linear solvers on the ALTIX. main entry through Paso_solve. this version compiles but
83 * has not been tested yet.
84 *
85 *
86 */

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