def bw_usage_update_at_top(self, ctxt, bw_update_info):
        message = _BroadcastMessage(self, ctxt, 'bw_usage_update_at_top',
                                    dict(bw_update_info=bw_update_info),
                                    'up', run_locally=False)
        message.process()
Update bandwidth usage at top level cell.
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/cells/messaging.py/MessageRunner.bw_usage_update_at_top