int index = smpi_process_index();
// wait for all pending asynchronous comms to finish
xbt_barrier_wait(process_data[index_to_process_data[index]]->finalization_barrier);
int index = smpi_process_index();
// wait for all pending asynchronous comms to finish
xbt_barrier_wait(process_data[index_to_process_data[index]]->finalization_barrier);