Boundary related classes

BoundaryData

Contains: BoundaryStatus, buffers, send/receive buffers and requests, all PER NEIGHBOR

Pure abstract base class, defines interfaces for managing BoundaryStatus flags and MPI requests

Pure abstract base class, defines interfaces for managing MPI send/receive and loading/storing data from communication buffers.

Derived from: BoundaryCommunication and BoundaryBuffer

Contains: BoundaryData for variable and flux correction.

Knows about: MeshBlock and Mesh

Still abstract base class, but implements some methods for sending and receiving buffers.

Contains: NeighborIndexes and NeighborBlock PER NEIGHBOR, number of neighbors, neighbor levels

Knows about: MeshBlock

Implements SearchAndSetNeighbors

Derived from: BoundaryBase and BoundaryCommunication

Knows about: MeshBlock, all the BoundaryVariable connected to variables of this block

Central class to interact with individual variable boundary data. Owned by MeshBlock.

Derived from: BoundaryVariable

Contains: Shallow copies of variable data, coarse buffer, and fluxes (owned by Variable)

Owned by Variable, implements loading and setting boundary data, sending and receiving flux corrections, and more.