1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/* Last update: 08-May-2013 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "glpk.h"
#include "proxy.h"
/**********************************************************************/
int main(int argc, char **argv)
/**********************************************************************/
{
glp_prob *lp;
int ncols, status;
double *initsol, zstar, *xstar;
/* check arguments */
if ( (argc == 1) || (argc > 3) ) {
printf("ERROR: Usage: ts <instance> <(possibly) xml initsols>\n"
);
exit(1);
}
/* creating the problem */
lp = glp_create_prob();
glp_set_prob_name(lp, "Proxy");
/* reading the problem */
glp_term_out(GLP_OFF);
#if 0 /* by mao */
status = glp_read_lp(lp, NULL, argv[1]);
#else
status = glp_read_mps(lp, GLP_MPS_FILE, NULL, argv[1]);
#endif
glp_term_out(GLP_ON);
if ( status ) {
printf("Problem %s does not exist!!!, status %d\n",
argv[1], status);
exit(1);
}
ncols = glp_get_num_cols(lp);
initsol = (double *) calloc(ncols+1, sizeof(double));
if (argc == 3) {
FILE *fp=fopen(argv[2],"r");
char tmp[256]={0x0};
int counter = 1;
while(fp!=NULL && fgets(tmp, sizeof(tmp),fp)!=NULL)
{
char *valini = strstr(tmp, "value");
if (valini!=NULL){
int num;
double dnum;
valini +=7;
sscanf(valini, "%d%*s",&num);
dnum = (double)num;
initsol[counter] = dnum;
counter++;
}
}
fclose(fp);
}
xstar = (double *) calloc(ncols+1, sizeof(double));
if (argc == 3) {
status = proxy(lp, &zstar, xstar, initsol, 0.0, 0, 1);
}
else {
status = proxy(lp, &zstar, xstar, NULL, 0.0, 0, 1);
}
printf("Status = %d; ZSTAR = %f\n",status,zstar);
/*
int i;
for (i=1; i< ncols+1; i++) {
printf("XSTAR[%d] = %f\n",i, xstar[i]);
}
*/
glp_delete_prob(lp);
return 0;
}
|
