The B matrix is basically a component-wise multiplication
with a vector followed by a parallel reduction. We do that
reduction to all ranks computing for the well to save the
broadcast when applying C^T.
BlackoilWellModel now stores an instance of this class for each
well. Inside that class there is a custom communicator that only
contains ranks that will have local cells perforated by the well.
This will be used in the application of the distributed well operator.
This is another small step in the direction of distributed wells,
but it should be safe to merge this (note creation of the custom
communicators is a collective operation in MPI but done only once).
This commit adds a new helper function,
WellInterfacePtr createWellPointer(wellID, reportStep) const
which is responsible for creating appropriately typed derived well
pointers depending on well types (multi-segment vs. standard).
This, in turn, allows us to centralise this logic and use the same
factory function both when creating the 'well_container_' and when
forming the well-test objects.
Finally, this helper will become useful for calculating PI/II values
of shut/stopped wells in the context of WELPI.
The original code assumed that
well_container_.size() == numLocalWells()
This assumption does not hold when wells open/shut dynamically in
the context of WECON and/or WTEST.
Switch to indexing into the 'prod_index_calc_' vector using the
well's own linear index instead of manually advancing iterators.
Pointy Hat: [at]bska
This commit ensures that we calculate the well and connection level
per-phase steady-state productivity index (PI) at the end of a
completed time step (triggered from endTimeStep()).
We add a new data member,
BlackoilWellModel<>::prod_index_calc_
which holds one WellProdIndexCalculator for each of the process'
local wells and a new interface member function
WellInterface::updateProductivityIndex
which uses a per-well PI calculator to actually compute the PI
values and store those in the WellState. Implement this member
function for both StandardWell and MultisegmentWell. Were it not
for 'getMobility' existing only in the derived classes, the two
equal implementations could be merged and moved to the interface.
We also add a new data member to the WellStateFullyImplicitBlackoil
to hold the connection-level PI values. Finally, remove the
conditional PI calculation from StandardWell's well equation
assembly routine.
In serial we use the first cell of the first well to determine the
pvt region index for a group. Previously, we used the first cell of
the first local well in a parallel run. Unfortunately that may lead
to different pvt region indices being used for the same goup on
different processes.
We fix this by using the same approach in parallel as we already use
in serial. For this we use Well::seqIndex() to determine the needed
ordering.
and use it in the WellInterface instead of creating a vector
with these indices there. The original approach recreates
information in another path of the well and assumes that all
connections are in a process's local partition. That assumption
does not hold any more for distributed wells.
With this, a slightly more sophisticated procedure is used for well rate intialization.
Since it changes existing results, it defaults to false, giving the existing behaviour.
Implements gas lift optimization for a single StandardWell. Support for
gas lift optimization for multi-segment wells, groups of wells and
networks is not implemented yet.
The keywords LIFTOPT, WLIFTOPT, and VFPPROD are used to supply parameters for
the optimization. Also adds support for summary output of liftgas
injection rate via keyword WGLIR.
Previously, we exported an unordered map containing all names of
wells that are not present in the local part of the grid.
As we envision to have wells that are distributed across multiple
processors, this information does not seem to be enough. We need
to be able to set up communication for each well. To do this we need
to find out who handles perforations of each well.
We now export a full list of well name together with a boolean
indicating whether it perforates local cells (vector of pair of string
and bool).
This is in preparation of adding support for outputting the network
node pressure quantity, GPR, to the summary file. In particular,
'GroupValues' is renamed to 'GroupAndNetworkValues' and has new
individual datamembers for the former group-level data and the new
node-level data.
Update BlackoilWellModel::groupData() and CollectToIORank
accordingly and bring the parallel restart facility in line with the
new layout.
This commit adds support for reporting the simulator's guiderate
values at the well and group levels to the output layer through the
wellData() and groupData() member functions. We add several new
member functions that collectively assemble the values and assign
them to objects of type Opm::data::GuideRateValue for subsequent
output to the summary and restart files.
In particular
getGuideRateValues(const Well&) const
getGuideRateValues(const Group&) const
retrieve the guiderate values for all phases for those individual
wells and groups for which the guideRate_ data member defines a
value. The most complicated function of this commit is
calculateAllGroupGuideRates
which aggregates those individual contributions from the well (leaf)
level up to the root of the group tree (the FIELD group). This
process uses an ancillary array ('up') to keep track of the parent
groups of all wells and all groups, and to ensure that we only visit
each parent group once (sort+unique on subsets of the 'up' array).
We do not currently support outputting guiderates for reservoir
voidage volume (GuideRateModel::Target::RES).
Especially, grab a copy of the "oldControl" to avoid reading through
a reference for which the underlying object is reset in
setCurrent*GroupControl()
This in turn avoids generating confusing diagnostic messages of the
form
Switching production control mode for group G from FLD to FLD
This commit makes the 'groupData()' function return a
map<string, Opm::data::GroupData>
object instead of a
map<string, Opm::data::GroupConstraints>
object. The 'GroupData' structure adds a level of indirection to
the current per-group summary quantities that are directly assigned
by the simulator. While here, also move the assignment of the
current group constraints/control values out to a separate helper
to reduce the body of the per-group loop in 'groupData()'.
This is in preparation of adding support for reporting group-level
production/injection guiderates (Gx[IP]GR) to the summary file.
