chibi@1604:~/NVIDIA_CUDA-11.0_Samples/0_Simple/simpleP2P$ ./simpleP2P
[./simpleP2P] – Starting…
Checking for multiple GPUs…
CUDA-capable device count: 2
Checking GPU(s) for support of peer to peer memory access…
> Peer access from GeForce RTX 2080 Ti (GPU0) -> GeForce RTX 2080 Ti (GPU1) : Yes
> Peer access from GeForce RTX 2080 Ti (GPU1) -> GeForce RTX 2080 Ti (GPU0) : Yes
Enabling peer access between GPU0 and GPU1…
Allocating buffers (64MB on GPU0, GPU1 and CPU Host)…
Creating event handles…
cudaMemcpyPeer / cudaMemcpy between GPU0 and GPU1: 43.54GB/s
Preparing host buffer and memcpy to GPU0…
Run kernel on GPU1, taking source data from GPU0 and writing to GPU1…
Run kernel on GPU0, taking source data from GPU1 and writing to GPU0…
Copy data back to host from GPU0 and verify results…
Disabling peer access…
Shutting down…
Test passed
chibi@1604:~/NVIDIA_CUDA-11.0_Samples/0_Simple/simpleP2P$
AMD EPYC 7502P 32-Core Processor Ubuntu 16.04.7 LTS RTX2080Ti x2 CUDA 11.0 Samples simpleP2P p2pBandwidthLatencyTest bandwidthTest deviceQuery