Fast data communication for scalable distributed shared-memory parallel computer hyper-KORP

A loosely coupled ring-connected parallel processing system (called KORP: Kobe University Ring-connected Parallel Computer) with distributed shared-memory is being developed. The high-speed communication in KORP is performed by the exclusive data transmission hardware called Stream Controller (SC). The consistency of shared data is maintained by a coherence-protocol controller which is a dedicated hardware for coherence control. The authors describe the architecture of KORP and its scalable configuration hyper-KORP. A trace-driven simulator is developed to analyze a distributed shared-memory system of KORP. SC performance evaluation by simulation using a parallel benchmark application is shown