Simulating complex SCI topologies

This paper shows how rather complex SCI topologies might be constructed and simulated using our present SCI simulator. We also present the serial HIC technology developed in the European OMI/HIC project. A HIC network may be used to transport SCI packets, and our new HIC network simulator under development is presented as it is intended to simulate such HIC networks. Keywords--- Scalable Coherent Interface (SCI), Simulations, HIC Technology, Serial links, Topologies I. Introduction N ODES in an SCI topology are designed to form ringlets. However, ringlet structures are sensitive to hardware failures, and their peak load is limited; they are not truly scalable [1]. Having access to switches that enable traffic to be directed from one ringlet to another, one may form rather complex networks from quite small ringlets [2], [3], [4]. Ideally, every sending node in the topology should be capable of connecting to any destination node without blocking. We call this network a crossbar networ..