[P2P (Peer-to-Peer) GPU Bandwidth Latency Test] Device: 0, Graphics Device, pciBusID: 1, pciDeviceID: 0, pciDomainID:1 Device: 1, Xavier, pciBusID: 0, pciDeviceID: 0, pciDomainID:0 Device=0 CANNOT Access Peer Device=1 Device=1 CANNOT Access Peer Device=0 ***NOTE: In case a device doesn't have P2P access to other one, it falls back to normal memcopy procedure. So you can see lesser Bandwidth (GB/s) and unstable Latency (us) in those cases. P2P Connectivity Matrix D\D 0 1 0 1 0 1 0 1 Unidirectional P2P=Disabled Bandwidth Matrix (GB/s) D\D 0 1 0 277.76 16.74 1 16.84 96.88 Unidirectional P2P=Enabled Bandwidth (P2P Writes) Matrix (GB/s) D\D 0 1 0 278.19 16.89 1 16.87 97.11 Bidirectional P2P=Disabled Bandwidth Matrix (GB/s) D\D 0 1 0 279.42 16.83 1 16.87 82.84 Bidirectional P2P=Enabled Bandwidth Matrix (GB/s) D\D 0 1 0 279.47 16.82 1 16.85 80.60 P2P=Disabled Latency Matrix (us) GPU 0 1 0 2.37 11.45 1 11.68 3.89 CPU 0 1 0 34.54 50.14 1 44.39 39.68 P2P=Enabled Latency (P2P Writes) Matrix (us) GPU 0 1 0 2.33 11.41 1 11.40 3.82 CPU 0 1 0 34.62 49.04 1 44.09 30.87 NOTE: The CUDA Samples are not meant for performance measurements. Results may vary when GPU Boost is enabled.