According to Cuda Documentation,
22.214.171.124. Peer-to-Peer Memory Access
Peer-to-peer memory access must be enabled between two devices by calling cudaDeviceEnablePeerAccess() as illustrated in the following code sample. Each device can support a system-wide maximum of eight peer connections.
What does “Each device can support a max of eight peer connections” mean?
Are these 8 simultaneous connections?
The author gave results for P2P enabled on a 10x GPU single-root system. They ran the p2pBandwidthLatencyTest.
Does this mean that P2P is capable on 8+ gpu systems?