Numerical simulation for the anisotropic benchmark by a vertex-centred finite volume method. ... PauMarr is an on- going long-term development effort and establishes a software framework, based on the C++ programming language, for the computation of flow and transport in porousmedia. PauMarr is a simulator developed by the University of Pau, France in collaboration with the University of Cadi Ayyad, Marrakesh, Morocco.