VISTA: The Visual Interface for Scheduling Transformations and Analysis

VISTA is a visually oriented, interactive environment for parallelizing sequential programs at the instruction level for execution on ne-grain architectures. Fully automatic parallelization techniques often perform well, but may not be able to achieve the strict performance and code size requirements needed for some critical applications. In such cases, manual manipulation by an expert user can often provide enough improvements in the parallelization process to meet the requirements of the application. Using VISTA, an expert user ne-tunes the parallelization process by providing rules and directives to the system in response to graphical and numeric feedback provided by the system.