MueLu: Driver.cpp, adding option for multiple RHS and for belos solver
Created by: lucbv
@trilinos/muelu
Expectations
The muelu driver should allow users to run problems with multiple RHS, at the same time this requires a finer granularity to chose the associated belos solver.
Current Behavior
Currently only single RHS is allowable and only Pseudo CG and Block Gmres are availble from Belos.
Motivation and Context
This will allow us to test more solver/preconditioner configurations that users and customers might care about.