Part I: Parallel Computer System Architectures Representative of cow research projects Project/Reference Speclal Features to Support Clustering a serverless network of workstations featured Berkeley Now Project with active messaging, cooperative filing and global Unix extensions Princeton Commodity components, efficient communication and shared SHRIMP virtual memory through special network interfaces Karlsruhe Efficient communication network and software Parastaion development for distributed parallel processing Rice Software-implemented distributed TreadMarks shared-memory cluster of workstations Wisconsin Distributed shared memory on a cluster Wind Tunnel of workstations interconnected with a commodity network The NSCP National Scalable Cluster Projcct for metacomputing http://nscp.upenn.edu over three local clusters linked through Intemet Argo Developing metacomputing platform and software through Globus an ATM-connected WAN of 17 sites in North America Syracuse A World-Wide Virtual Machine for high-performance WWVM computing with Internet and HPCC technologies PcarlClustcr A research cluster for distributed multimedia http://pearl.cs.hku.hkandfinancialdigitallibraryapplications virginia Developing metacomputing software Legion towards a national virtual computer facility NHPCC(Hefei)·USTC· CHINA glchenaustc edu.ciNHPCC(Hefei) •USTC •CHINA glchen@ustc.edu.cn Representative of COW Research Projects Part I : Parallel Computer System Architectures 1 -11