[libfabric-users] troubled by FI_SOURCE use

[Hefty, Sean]

> > As utility providers, is there a matrix (like the very useful feature matrix)
> > that says which hardware providers they are compatible with?
> > For example, if I want to use RXD on top of verbs or RXM on top of verbs, or
> on
> > top of sockets, tcp, udp - how do I know which ones are possible?
> 
> We should add a utility provider requirement matrix.
> 
> RXM will work over verbs RC and XRC, and tcp.
> RXD will work over verbs UD, and udp.

This is more detailed than requested, but I started a new matrix to capture the requirements of the utility providers.  This would need to be mapped to the provider requirement matrix to see which providers can map over another.

https://github.com/ofiwg/libfabric/wiki/App-Feature-Requirements

I'll ask the maintainers to update the matrix with real data, versus my quick guesses.  My hope is that this can be expanded to include some application level requirements, such as what MPICH needs.

- Sean