The command ibv_devinfo provides information about Infiniband devices.

To make sure that Open-MPI (if you use Open-MPI) detects the hardware and use
RDMA.


mpiexec \
--mca btl_openib_verbose 1 \
--mca mpi_show_mca_params all \
--mca btl_openib_use_eager_rdma 1 \
--mca btl_openib_mtu 4 \
 -np 16 /home/sboisver12/Ray -o $jobName -test-network-only

