I have been looking closely at the source code for openmpi-2.0.2 and I see
what looks like support for GPU direct RDMA but when testing it with a
small GPU direct aware MPI program from Nvidia, I don't see ibv_reg_mr()
ever being called with the GPU UVM address.
Looking more closely, it appears tha
Thanks! That is what I was missing.
On Mon, Mar 13, 2017 at 7:03 PM, Akshay Venkatesh
wrote:
> Hi, Ralph.
>
> Have you already tried passing the parameter
>
> --mca btl_openib_want_cuda_gdr 1
>
> This may help your case.
>
>
> On Mon, Mar 13, 2017 at 5:52 PM, Ralp
