Evolutionary Design of OAB and AAB Communication Schedules for Networking Systems on Chips

One-to-All Broadcast, All-to-All Broadcast, Evolutionary algorithms, Interconnection networks

Since chip multiprocessors are quickly penetrating new application areas in network and media processing, their interconnection architectures become a subject of optimization. One-to-All Broadcast (OAB) and All-to-All Broadcast (AAB) group communications are frequently used in many parallel algorithms and if their overhead is excessive, performance degrades rapidly with processor count. This paper deals with the design of a new application specific Bayesian Optimization Algorithm (BOA) and Standard Genetic Algorithm (SGA), that both produce almost optimal communication schedules for an arbitrary multiprocessor topology. We demonstrated the optimization process on hypercube and AMP topology using WH (Wormhole) switching.