The aim of Para++ is to provide a user-level C++ interface to message passing libraries, by encapsulating the notions of processes and inter-processes communications into specific C++ objects and streams. Actually, this abstraction level allows to implement Para++ with any kind of message passing library.

Para++'s main idea is to add new C++ io-streams allowing inter-tasks communications. These streams support all generic scalar datatype ( int, float, double,...), plus some mathematical datatypes (Vectors, Matrix,...). Para++ has been implemented on top of PVM and MPI.