A Multiscale Finite Volume method is provided to efficiently solve large heterogeneous problems; it is usually employed for pressure equations and delivers conservative flux fields to be used in transport problems. For example, a method for adaptively processing a variety of input signals is disclosed. The method also includes storing the operation execution time. Subsequent to the liner oxidation, the wide isolation trenches are filled with an isolation dielectric, whereby all of the trenches are uniformly filled with minimal voids. In addition to this general framework and format, a particular format, known as the reach package format, is defined using the general framework.