> If I keep the presolver on, the basis information from the previous
> solve is lost and the 2-phase primal algorithm kicks off from scratch
> (instead of the dual simplex using the previous basis). If I turn the
> presolver off, I know my problem is bigger than it needs to be, but
> the dual sim
I am doing something like this with glpk-4.23:
lp = lpx_read_cpxlp("../prob.cplex");
glp_create_index(lp);
glp_simplex(lp, simplex_control_params);
for(i = 0; i < 40; i++ ) {
printf("Iteration %d\n", i);
add_rows(lp, buffer, index, value, col_status, subprob);
printf("Adde
