Reply To: Multi-GPU MPI library is not CUDA-aware
Ok, weird. I just re-tested the release on my dual GPU system and the example works as it should.
One other possibility is that the nvcc selected in the environment is a different one than in your /usr/local/cuda. You could also try the “mixed” mode (see the example configs in config/) to directly use your mpic++ together with nvcc.
Did you test any other CUDA-aware MPI apps in the same environment?