Graphical development tools for network-based concurrent supercomputing

This paper describes an X-window based sofiware environment called HeNCE (Heterogeneous Network Computing Environment) designed to assist scientists in developing parallel programs that run on a network of computers. HeNCE is built on top of a software package called P VM which supports process manage- ment and communication between a network of heterogeneous computers. HeNCE is based on a parallel programming paradigm where an application program can be described by a graph. Nodes of the graph represent subroutines and the arcs represent data dependencies. HeNCE is composed of integrated graphical tools for creating, compiling, executing, and analyzing HeNCE programs. cus on developing methods and tools which allow a programmer to tap into this resource.