Manifold Version Programming Programs and Problems

Manifold is a new programming language designed to control multiple concurrent activities by managing the communications among a number active communicating entities The present initial version of the Manifold language is a minimal language attempting solely to implement a conceptual model of asynchronously communicating processes called the Manifold model Such a model can be useful in an implementation environment where processes and interprocess communication are fast and amply available eg massive parallelism This document contains a tutorial introduction to the rst experimental Version of the Manifold language using listings of simple working example programs followed by four larger working pro grams The detailed operation of each of these latter four programs is described with the help of illustrations and a number of language features and problems are explained We conclude that the Manifold conceptual model and language are both implementable and actually work but also that in their initial rst experimental versions they have some imperfections which must be taken into account in the design and implementation of the next version of the Manifold syste