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authorAlberto Ruiz <aruiz@um.es>2010-02-24 09:03:40 +0000
committerAlberto Ruiz <aruiz@um.es>2010-02-24 09:03:40 +0000
commit4ebde988645cb1d2d60f8df8605ec8254713a9d9 (patch)
tree3fd001a92921dcc553e01c8c32849f5e8135247a /packages/glpk/lib/Numeric/LinearProgramming/glpk.c
parente0605467b60f65478d0f5cc8f82ba14a99168f7b (diff)
removed simplexDense
Diffstat (limited to 'packages/glpk/lib/Numeric/LinearProgramming/glpk.c')
-rw-r--r--packages/glpk/lib/Numeric/LinearProgramming/glpk.c83
1 files changed, 6 insertions, 77 deletions
diff --git a/packages/glpk/lib/Numeric/LinearProgramming/glpk.c b/packages/glpk/lib/Numeric/LinearProgramming/glpk.c
index 0f4ad79..bfbb435 100644
--- a/packages/glpk/lib/Numeric/LinearProgramming/glpk.c
+++ b/packages/glpk/lib/Numeric/LinearProgramming/glpk.c
@@ -1,84 +1,14 @@
1typedef struct { double r, i; } doublecomplex;
2
3#define DVEC(A) int A##n, double*A##p 1#define DVEC(A) int A##n, double*A##p
4#define CVEC(A) int A##n, doublecomplex*A##p
5#define DMAT(A) int A##r, int A##c, double*A##p 2#define DMAT(A) int A##r, int A##c, double*A##p
6#define CMAT(A) int A##r, int A##c, doublecomplex*A##p
7 3
8#define AT(M,r,co) (M##p[(r)*M##c+(co)]) 4#define AT(M,r,co) (M##p[(r)*M##c+(co)])
9 5
10/*-----------------------------------------------------*/
11
12#include <stdlib.h> 6#include <stdlib.h>
13#include <stdio.h> 7#include <stdio.h>
14#include <glpk.h> 8#include <glpk.h>
15#include <math.h> 9#include <math.h>
16 10
17int c_simplex_dense(DMAT(c), DMAT(b), DVEC(s)) { 11/*-----------------------------------------------------*/
18 glp_prob *lp;
19 lp = glp_create_prob();
20 glp_set_obj_dir(lp, GLP_MAX);
21
22 int m = cr-1;
23 int n = cc;
24 glp_add_rows(lp, m);
25 glp_add_cols(lp, n);
26 int * ia = malloc((1+m*n)*sizeof(int));
27 int * ja = malloc((1+m*n)*sizeof(int));
28 double * ar = malloc((1+m*n)*sizeof(double));
29 int i,j,k;
30 k=0;
31 for (i=1;i<=m;i++) {
32 for(j=1;j<=n;j++) {
33 k++;
34 ia[k] = i;
35 ja[k] = j;
36 ar[k] = AT(c,i,j-1);
37 //printf("%d %d %f\n",ia[k],ja[k],ar[k]);
38 }
39 }
40 glp_load_matrix(lp, k, ia, ja, ar);
41 for (j=1;j<=n;j++) {
42 glp_set_obj_coef(lp, j, AT(c,0,j-1));
43 }
44 int t;
45 for (i=1;i<=m;i++) {
46 switch((int)rint(AT(b,i-1,0))) {
47 case 0: { t = GLP_FR; break; }
48 case 1: { t = GLP_LO; break; }
49 case 2: { t = GLP_UP; break; }
50 case 3: { t = GLP_DB; break; }
51 default: { t = GLP_FX; break; }
52 }
53 glp_set_row_bnds(lp, i, t , AT(b,i-1,1), AT(b,i-1,2));
54 }
55 for (j=1;j<=n;j++) {
56 switch((int)rint(AT(b,m+j-1,0))) {
57 case 0: { t = GLP_FR; break; }
58 case 1: { t = GLP_LO; break; }
59 case 2: { t = GLP_UP; break; }
60 case 3: { t = GLP_DB; break; }
61 default: { t = GLP_FX; break; }
62 }
63 glp_set_col_bnds(lp, j, t , AT(b,m+j-1,1), AT(b,m+j-1,2));
64 }
65 glp_term_out(0);
66 glp_simplex(lp, NULL);
67 sp[0] = glp_get_status(lp);
68 sp[1] = glp_get_obj_val(lp);
69 for (k=1; k<=n; k++) {
70 sp[k+1] = glp_get_col_prim(lp, k);
71 }
72
73 glp_delete_prob(lp);
74 free(ia);
75 free(ja);
76 free(ar);
77
78 return 0;
79}
80
81/* ---------------------------------------------------- */
82 12
83int c_simplex_sparse(int m, int n, DMAT(c), DMAT(b), DVEC(s)) { 13int c_simplex_sparse(int m, int n, DMAT(c), DMAT(b), DVEC(s)) {
84 glp_prob *lp; 14 glp_prob *lp;
@@ -108,25 +38,25 @@ int c_simplex_sparse(int m, int n, DMAT(c), DMAT(b), DVEC(s)) {
108 //printf("%d %d %f\n",ia[k],ja[k],ar[k]); 38 //printf("%d %d %f\n",ia[k],ja[k],ar[k]);
109 } 39 }
110 glp_load_matrix(lp, tot, ia, ja, ar); 40 glp_load_matrix(lp, tot, ia, ja, ar);
111 41
112 int t; 42 int t;
113 for (i=1;i<=m;i++) { 43 for (i=1;i<=m;i++) {
114 switch((int)rint(AT(b,i-1,0))) { 44 switch((int)rint(AT(b,i-1,0))) {
115 case 0: { t = GLP_FR; break; } 45 case 0: { t = GLP_FR; break; }
116 case 1: { t = GLP_LO; break; } 46 case 1: { t = GLP_LO; break; }
117 case 2: { t = GLP_UP; break; } 47 case 2: { t = GLP_UP; break; }
118 case 3: { t = GLP_DB; break; } 48 case 3: { t = GLP_DB; break; }
119 default: { t = GLP_FX; break; } 49 default: { t = GLP_FX; break; }
120 } 50 }
121 glp_set_row_bnds(lp, i, t , AT(b,i-1,1), AT(b,i-1,2)); 51 glp_set_row_bnds(lp, i, t , AT(b,i-1,1), AT(b,i-1,2));
122 } 52 }
123 for (j=1;j<=n;j++) { 53 for (j=1;j<=n;j++) {
124 switch((int)rint(AT(b,m+j-1,0))) { 54 switch((int)rint(AT(b,m+j-1,0))) {
125 case 0: { t = GLP_FR; break; } 55 case 0: { t = GLP_FR; break; }
126 case 1: { t = GLP_LO; break; } 56 case 1: { t = GLP_LO; break; }
127 case 2: { t = GLP_UP; break; } 57 case 2: { t = GLP_UP; break; }
128 case 3: { t = GLP_DB; break; } 58 case 3: { t = GLP_DB; break; }
129 default: { t = GLP_FX; break; } 59 default: { t = GLP_FX; break; }
130 } 60 }
131 glp_set_col_bnds(lp, j, t , AT(b,m+j-1,1), AT(b,m+j-1,2)); 61 glp_set_col_bnds(lp, j, t , AT(b,m+j-1,1), AT(b,m+j-1,2));
132 } 62 }
@@ -144,4 +74,3 @@ int c_simplex_sparse(int m, int n, DMAT(c), DMAT(b), DVEC(s)) {
144 74
145 return 0; 75 return 0;
146} 76}
147