  In this paper we present the concept of MPF, Message Passing Fluid, an
abstract fluid where the molecules move by mean of the informations that they
exchange each other, on the basis of rules and methods of a generalized
Cellular Automaton. The model is intended for its simulation by mean of message
passing libraries on the field of parallel computing. We present a critical
analysis of the necessary computational effort in a possible implementation of
such an object.
