The CODE 2.0 graphical parallel programming language

CODE 2.0 is a graphical parallel programming system that targets the three goals of ease of use, portability, and production of efficient parallel code. Ease of use is provided by an integrated graphical/textual interface, a powerful dynamic model of parallel computation, and an integrated concept of program component reuse. Portability is approached by the declarative expression of synchronization and communication operators at a high level of abstraction in a manner which cleanly separates overall computation structure from the primitive sequential computations that make up a program. Execution efficiency is approached through a systematic class hierarchy that supports hierarchical translation refinement including special case recognition. This paper reports results obtained through experimental use of a prototype implementation of the CODE 2.0 system.