%T A Multiprocessor OCCAM Development System for UNIX Network Clusters %A D. G. Patrick, P. R. Green, T. A. York %E Andr\[`e] W. P. Bakkers %B Proceedings of WoTUG\-20: Parallel Programming and Java %X This paper describes the OCCNIX multiprocessor environment, that enables OCCAM program development and testing, on clusters of UNIX workstations. Linked binary level interpreters form a virtual Transputer network that uses the TCP/IP client\-server model and provides hardware independent multiple platform access in a similar way to the recently released JAVA. Results show a single processor performance that is half that of an actual Transputer and a four\-processor speedup of 0.78. The system also has the ability to run development tools such as the ISPY network debugger.