Randolph Settgast

@klevzoff I had been avoiding implementing subsetting because we hadn't really needed it. Your proposal is pretty much what I had in mind, but the index set is really a...

@klevzoff I'm think the thing that I keep forgetting is that for a multiphase solver, you can't just specify the boundary pressure and be done with it. You have some...

Would it be also useful to be able to initialize values to like the maximum of the range so you would trigger an overflow if not initialized?

@corbett5 was this done?

@corbett5 Seems like something that could/should be in LvArray?

on lassen, this looks like ``` GEOSX version: 0.2.0 (feature/settgast/outputVersionInfo, sha1: c1308b34f) - clang version: 9.0.0 - cuda version: 10.1 - openmp version: 201107 - MPI version: Open MPI v10.3.1.03rtm0,...

> Moving this out of the merge queue... seeing the lassen integrated tests hang with shared libraries (or might be my terminal/ allocation). Need to debug further against develop. Maybe...

@bmhan12 what happens if you use cmake object libraries, statically link geosx, and dynamically link all unit tests?

@joshua-white What are we doing with this PR?

Lets look at just deleting the velocity field for quasi static time integrators.