There was discussion of this on a prior email thread on the OMPI devel mailing 
list:

http://www.open-mpi.org/community/lists/devel/2013/05/12354.php


On Jul 6, 2013, at 2:01 PM, Michael Thomadakis <drmichaelt7...@gmail.com> wrote:

> thanks,
> 
> Do you guys have any plan to support Intel Phi in the future? That is, 
> running MPI code on the Phi cards or across the multicore and Phi, as Intel 
> MPI does?
> 
> thanks...
> Michael
> 
> 
> On Sat, Jul 6, 2013 at 2:36 PM, Ralph Castain <r...@open-mpi.org> wrote:
> Rolf will have to answer the question on level of support. The CUDA code is 
> not in the 1.6 series as it was developed after that series went "stable". It 
> is in the 1.7 series, although the level of support will likely be 
> incrementally increasing as that "feature" series continues to evolve.
> 
> 
> On Jul 6, 2013, at 12:06 PM, Michael Thomadakis <drmichaelt7...@gmail.com> 
> wrote:
> 
> > Hello OpenMPI,
> >
> > I am wondering what level of support is there for CUDA and GPUdirect on 
> > OpenMPI 1.6.5 and 1.7.2.
> >
> > I saw the ./configure --with-cuda=CUDA_DIR option in the FAQ. However, it 
> > seems that with configure v1.6.5 it was ignored.
> >
> > Can you identify GPU memory and send messages from it directly without 
> > copying to host memory first?
> >
> >
> > Or in general, what level of CUDA support is there on 1.6.5 and 1.7.2 ? Do 
> > you support SDK 5.0 and above?
> >
> > Cheers ...
> > Michael
> > _______________________________________________
> > users mailing list
> > us...@open-mpi.org
> > http://www.open-mpi.org/mailman/listinfo.cgi/users
> 
> 
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