AthDevice::MemoryResourceSvcAdaptorTool Node1 AthDevice::MemoryResource SvcAdaptorTool   + initialize() + mr() * initialize() * mr() Node2 extends< AthAlgTool, IMemoryResourceTool >     Node2->Node1 Node3 ServiceHandle< AthDevice ::IMemoryResourceSvc >     Node3->Node1 -m_mrSvc