if (validate_args(config, nr_dimensions, max_nr_elem,
global_sum_step, global_counter_fd, nr_counter_cpu_fds,
counter_cpu_fds))
return NULL;
if (validate_args(config, nr_dimensions, max_nr_elem,
global_sum_step, global_counter_fd, nr_counter_cpu_fds,
counter_cpu_fds))
return NULL;