Graphical support for data distribution in SPMD parallelization environments

The paper introduces a programming environment for HPF like languages with emphasis on graphical support for data distribution. A novel component of this environment is a mapping design and visualization tool. The tool provides visualization of HPF array objects such as data arrays and logical processor arrays and creates a number of diagrams based on information that is gathered from other components of the environment such as the compiler or a debugger. The diagrams relate to crucial issues such as load distribution and communication. Furthermore we show how our environment facilitates seamless integration of additional components.