Manipulation of Processor Boundaries
 

Dear all,
as an objective of the project I am currently working on, we need to manipulate the behavior of the automatically generated processor boundaries during decomposition and parallel MPI-run of OpenFOAM.
Is there a principal opportunity to do so and where would be the best point to start looking for it in the source code?

/home/…/OpenFOAM/OpenFOAM-2.1.1/src/OpenFOAM/db/IOstreams/Pstreams for MPI parameters?
/home/…/OpenFOAM/OpenFOAM-2.1.1/src/parallel for decomposition itself?
/home/…/OpenFOAM/OpenFOAM-2.1.1/src/finiteVolume/fields/fvPatchFields/constraint/processor for the BC itself?

Thank you very much in advance for your help.