xbt_dynar_t ctn = xbt_str_split_str(host->coord, " ");
xbt_dynar_shrink(ctn, 0);
xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
xbt_dynar_t ctn = xbt_str_split_str(host->coord, " ");
xbt_dynar_shrink(ctn, 0);
xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);