[Mpi3-rma] RMA communication with single network messages

[Oliver Mangold]

On 14.07.2011 17:40, Pavan Balaji wrote:
>
> MPI_Rsend still has matching complexity which RMA operations don't.
>
Yes, and I also guess preposting the receives for each Rsend is an overhead.
> I think what Oliver wants can be achieved by passing the
> MPI_MODE_NOCHECK assertion to the post/start calls.
>
That looks very interesting. I will check if it actually makes a 
performance difference.