this makes the RateConverter stuff independent of Eigen and it
simplifies some things because the the old PVT API is designed as a
"bulk-with-derivatives" API while the rate converter code used it in
"single shot" mode without derivatives.
this code mostly used the Eigen vectors as arrays anyway, so let's use
`std::vector`.
also, this patch only "mostly eliminates" Eigen from from these parts
of the code because the source files of the VFP code still use
AutoDiffBlock; Unfortunately this cannot easily be changed because
`flow_legacy` depends on these methods. (`flow_ebos` does not use the
incriminating methods.)
Instead of the WellsManager guessing which wells are handled by other
processes we now use tha ouput of the load balancer to compute wells
that are handled by other processes.
With the previous approach it was not possible to calculate this information
correctly. Wells with only one completion next to the border of the
processes' partition were represented on multiple processes. In additition
wells that the eclipse schedule section defined with completions on non-active
cells in sequential runs were not at all calculated in parallel runs.
With the new approach the CpGrid::loaBalance routine returns the set names of
wells that are not handled by this process when setting up the simulation. This
information is then used throughout the simulation.
The well potentials are caculated based on the well rates and pressure
drawdown at every time step. They are used to calculate default guide
rates used in group controlled wells.
well_perforation_pressure_diffs is stored in
WellStateFullyImplicitBlackoil as it is needed in the well potential
calculations.
i.e. it now supports stuff like MULTFLT in the schedule
section. Possibly, the MPI-parallel code paths need some fixes. (but
if the geology is not changed during the simulation, the parallel code
will do the same as before.)
the most fundamental change of this patch is that the
reference/pointer to the DerivedGeology object is made
non-constant. IMO that's okay, though, becase the geology can no
longer assumed to be constant over the whole simulation run.
in particular, where to put empty lines and spaces. Also added a
copyright statement for myself to a few files and added a comment. the
new comment was requested by [at]bska, the rest was requested by
[at]atgeirr.
this is necessary because some older simulations only provide the
full-fledged solver class but no physical model.
(also, this allows to use something else than the standard newton
solver.)
so, far it is just a copy of the old "SimulatorFullyImplicitBlackoil"
class (which became a simple forward to the base class). The intention
is to unify the common simulator code in this class to avoid excessive
copy-and-pasting.
