Abstract:
A method for expanding the capabilities of the Angara system area network through the sharing of its own 24-port routers and market hubs 1$\times$3 and 1$\times$4 is considered. The method is based on the use of networks with the topology of quasi-complete graphs constructed in an extended elemental basis consisting of switches (routers) and hubs of duplex channels. These networks are the basis of the method of invariant expansion of arbitrary networks, which preserves transmission delays and increases the number of subscribers. Using this method, a distributed extended router is constructed from Angara network routers, and networks based on it are constructed with the structure of 1, 2, 3, 4-dimensional tori, either containing a significantly larger number of subscribers with the same network diameter, or having a smaller diameter with the same number of subscribers compared to the Angara network. In fact, the method under consideration made it possible to increase the number of processors, reduce the diameter and increase the channel fault tolerance of the network.
Keywords:system networks of supercomputers, Angara network, networks with topology of quasi-complete graphs, invariant expansion of networks, number of network subscribers and network diameter, scaling and performance.
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