-#endif
-
-#ifdef DUMP_MPS
-/**
- * Dumps an mps file representing the problem. This is NOT the old-style,
- * fixed-column format. Some white spaces are important, in general spaces
- * are separators, MARKER-lines are used in COLUMN section to define binaries.
- */
-//BETTER use last 2 fields in COLUMNS section
-static void pi_dump_mps(problem_instance_t *pi) {
- int i, max_abs_Qij;
- matrix_elem_t *e;
- FILE *out = ffopen(pi->name, "mps", "wt");
-
- DBG((dbg, LEVEL_1, "Dumping mps...\n"));
- max_abs_Qij = pi->maxQij;
- if (-pi->minQij > max_abs_Qij)
- max_abs_Qij = -pi->minQij;
- pi->bigM = pi->A_dim * max_abs_Qij;
- DBG((dbg, LEVEL_2, "BigM = %d\n", pi->bigM));
-
- fprintf(out, "NAME %s\n", pi->name);
-
- fprintf(out, "ROWS\n");
- fprintf(out, " N obj\n");
- for (i=0; i<pi->x_dim; ++i)
- fprintf(out, " E cQ%d\n", i);
- for (i=0; i<pi->A_dim; ++i)
- fprintf(out, " E cA%d\n", i);
- for (i=0; i<pi->B_dim; ++i)
- fprintf(out, " L cB%d\n", i);
- for (i=0; i<pi->x_dim; ++i)
- fprintf(out, " L cy%d\n", i);
-
- fprintf(out, "COLUMNS\n");
- /* the x vars come first */
- /* mark them as binaries */
- fprintf(out, " MARKI0\t'MARKER'\t'INTORG'\n");
-#ifdef USE_SOS
- int sos_cnt = 0;
- fprintf(out, " S1 SOS_%d\t'MARKER'\t'SOSORG'\n", sos_cnt++);
-#endif
- for (i=0; i<pi->x_dim; ++i) {
-#ifdef USE_SOS
- if (i>0 && pi->x[i].n != pi->x[i-1].n) {
- fprintf(out, " SOS_%d\t'MARKER'\t'SOSEND'\n", sos_cnt++);
- fprintf(out, " S1 SOS_%d\t'MARKER'\t'SOSORG'\n", sos_cnt++);
- }
-#endif
- /* participation in objective */
- fprintf(out, " x%d_%d\tobj\t%d\n", pi->x[i].n, pi->x[i].c, -pi->bigM);
- /* in Q */
- matrix_foreach_in_col(pi->Q, i, e)
- fprintf(out, " x%d_%d\tcQ%d\t%d\n", pi->x[i].n, pi->x[i].c, e->row, e->val);
- /* in A */
- matrix_foreach_in_col(pi->A, i, e)
- fprintf(out, " x%d_%d\tcA%d\t%d\n", pi->x[i].n, pi->x[i].c, e->row, e->val);
- /* in B */
- matrix_foreach_in_col(pi->B, i, e)
- fprintf(out, " x%d_%d\tcB%d\t%d\n", pi->x[i].n, pi->x[i].c, e->row, e->val);
- /* in y */
- fprintf(out, " x%d_%d\tcy%d\t%d\n", pi->x[i].n, pi->x[i].c, i, 2*pi->bigM);
- }
-
-#ifdef USE_SOS
- fprintf(out, " SOS_%d\t'MARKER'\t'SOSEND'\n", sos_cnt++);
-#endif
- fprintf(out, " MARKI1\t'MARKER'\t'INTEND'\n"); /* end of marking */
-
- /* next the s vars */
- for (i=0; i<pi->x_dim; ++i) {
- /* participation in objective */
- fprintf(out, " s%d_%d\tobj\t%d\n", pi->x[i].n, pi->x[i].c, 1);
- /* in Q */
- fprintf(out, " s%d_%d\tcQ%d\t%d\n", pi->x[i].n, pi->x[i].c, i, -1);
- }