Start with some cmake and a sketch

[lifflander]

Fixes #1

[cwschilly]

@lifflander I've pushed the skeleton for some of the abstractions we've talked about. It occurs to me that we'll be re-defining some class/structs that exist in both LBAF and vt-tv.

What are your thoughts on defining a single DARMA interface somewhere with the concepts of Rank, Task, Block, etc and using it throughout the DARMA-tasking ecosystem? Then everything would be defined with the same abstractions, and we could add Python bindings for those classes to use in LBAF.

[lifflander]

What are your thoughts on defining a single DARMA interface somewhere with the concepts of Rank, Task, Block, etc and using it throughout the DARMA-tasking ecosystem? Then everything would be defined with the same abstractions, and we could add Python bindings for those classes to use in LBAF.

Yes, I think that's a great idea. We could unify a lot of the code with a generic description of these concepts across all the repos. I think vt, vt-tv, lb, and lbaf all have different ways of describing these which is a lot of code duplication.