A new Global Resource-constrained Percolation (GRiP) scheduling technique is presented for exploiting instruction level parallelism. Other techniques that have been proposed either have been prohibitively expensive in terms of computation or have limited parallelism. The GRiP technique has been implemented and simulation results are presented.

VISTA is a visually oriented, interactive environment for parallelizing sequential programs at the instruction level for execution on fine-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 fine-tunes the parallelization process by providing rules and directives to the system in response to graphical and numeric feedback provided by the system.