(After the human computers in Frank Herbert's SF classic, "Dune") An object-oriented distributed language developed at the University of Virginia some time before Dec 1987. Mentat is an extension of C++ and is portable to a variety of MIMD architectures.
By 1994 Mentat was available for Sun-3, Sun-4, iPSC/2 with plans for Mach, iPSC860, RS/6000 and Iris. The language is now (May 1998) supported in a new project, Legion.
["Mentat: An Object-Oriented Macro Data Flow System", A. Grimshaw <email@example.com> et al, SIGPLAN Notices 22(12):35-47, Dec 1987, OOPSLA '87].