Inner Secrets of GRAPNEL Code Generation

This paper describes structure and internal behavior of GRAPNEL programming environment. Development of the GRAPNEL environment was supported by EC within COPERNICUS Research Project No. 5383. This project has implemented a graphical programming environment for parallel programming. The developed environment helps programmers to develop, write, execute, and verify parallel programs for distributed environments more quickly. 1. Introduction GRAPNEL is a graphical programming language which has been developed to help programmers to develop parallel programs for distributed parallel environments. Using grapnel the programmer can use graphical symbols to define important structure of his/her program and processes and connections between the processes. Only the communication actions must be defined graphically, the other parts of the code of the processes can be placed in a "sequential" blocks which can contain any regular source codes. The developed environment consists of several tools. ..