[chibi@centos8 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 TITAN RTX (GPU0) -> TITAN RTX (GPU1) : Yes
> Peer access from TITAN RTX (GPU1) -> TITAN RTX (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@centos8 simpleP2P]$
[chibi@centos8 deviceQuery]$ cat /etc/redhat-release
CentOS Linux release 8.2.2004 (Core)
[chibi@centos8 deviceQuery]$ nvcc -V
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2020 NVIDIA Corporation
Built on Wed_May__6_19:09:25_PDT_2020
Cuda compilation tools, release 11.0, V11.0.167
Build cuda_11.0_bu.TC445_37.28358933_0
[chibi@centos8 deviceQuery]$
AMD EPYC 7502P 32-Core Processor CentOS Linux release 8.2 TITAN RTX x2 CUDA 11.0 Samples simpleP2P p2pBandwidthLatencyTest bandwidthTest deviceQuery