all_existing_models = xbt_dynar_new(sizeof(simgrid::surf::Model*), NULL);
if (!model_list_invoke)
model_list_invoke = xbt_dynar_new(sizeof(simgrid::surf::Model*), NULL);
all_existing_models = xbt_dynar_new(sizeof(simgrid::surf::Model*), NULL);
if (!model_list_invoke)
model_list_invoke = xbt_dynar_new(sizeof(simgrid::surf::Model*), NULL);