I haven't been in the hardware world for a while, so I don't have a great answer to your question. For concrete embedded systems tools, I'd look to see what springs up around chips like the OP (I think Parallax made a massively parallel chip a while back, too?). Hardware system design is already all about explicitly decomposed parallelism. The problems to be solved are really from the software perspective of not caring about how concurrent resources are automatically allocated, as long as the constraints are met. If you're looking to learn how to think about parallelism in that manner, I would learn to program in a popular high level language such as Erlang.