title: How can I do an overlapping scatter using Boost.MPI?
body: <p>I want to distribute a vector with overlapping elements. For example, if I had [1,2,3], I'd want [1,2] to get sent to one node, and [2,3] to get sent to another. I'm familiar with how to do this using MPI, but how would I do this using Boost::MPI?</p>