Best configuration to BoomerAMG on CPUs

[KleitonSchneider]

I am researching about simulations on petroleum reservoirs and I using Galerkin FE method, that results in linear systems. I am trying to use Hypre to solve the resulting linear systems, thats coming from unstructured meshes. The PDE system have nonlinear elliptic, hyperbolic and parabolic equations. I am looking for documents and papers about the suitable choices of parameters to BoomerAMG on CPUs, as linear solver or preconditioner.

Can you help me to understand the best configuration in order to ensure weak scalability (with OpenMP only)?