Optimal scheduling algorithms for communication constrained parallel processing

Abstract

With the advent of digital TV and interactive multimedia over broadband networks, the need for high performance computing for broadcasting is stronger than ever. Processing a digital video sequence requires considerable computing. One of the ways to cope with the demands of video processing in real-time, we believe, is parallel processing. Scheduling plays an important role in parallel processing especially for video processing applications which are usually bounded by the data bandwidth of the transmission medium. Although periodic real-time scheduling algorithms have been under research for more than a decade, scheduling for continuous data streams and impact of scheduling on communication performance are still unexplored. In this paper we examine periodic real-time scheduling assuming that the application is communication constrained where input and output data sizes are not equal.