A virtual bus for dynamic parallel processing

摘要

The paper proposes an efficient interconnection networkarchitecture called virtual bus that can sustain nonuniform traffic bydynamically allowing time sharing of network bandwidth among processingnodes. The bandwidth sharing is controlled by a fast variable priorityarbitration scheme with a round-robin scheduling policy. The virtual busarchitecture allows efficient implementation; with current technology,the virtual bus can achieve giga packets and tera bits per secondthroughputs in less than 5% of the total cost of an eight thousand portsystem