if (surf_network_model)
return;
surf_network_model_init_internal();
define_callbacks(filename);
xbt_dynar_push(model_list, &surf_network_model);
network_solve = lmm_solve;
if (surf_network_model)
return;
surf_network_model_init_internal();
define_callbacks(filename);
xbt_dynar_push(model_list, &surf_network_model);
network_solve = lmm_solve;