[mvapich-discuss] CUDA P2P support?

sreeram potluri potluri at cse.ohio-state.edu
Mon Jul 9 17:45:52 EDT 2012


Yes. MVAPICH2 uses CUDA P2P when its available.

Sreeram Potluri

On Mon, Jul 9, 2012 at 4:46 PM, Crni Gorac <cgorac at gmail.com> wrote:
> In case one MPI process is launched per GPU, and MPI_Send/MPI_Recv
> operation referencing
> GPU pointers happens to be between GPUs attached to the same machine,
> is MVAPICH able to recognize such situation, and utilize CUDA P2P
> transfers in this case?
>
> Thanks.
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