Abstract
Though several System Area Networks (SAN) are available to enhance the communication performance of a cluster, none of them has taken yet into account the special needs of clusters built out of SMP machines. Since single-CPU computers will be more and more replaced by small-scale SMP systems in the near future, an appropriate cluster interconnect should be adopted to the needs of multi-CPU nodes.
In this paper, we investigate the properties of the ATOLL SAN1, which offers with its four replicated network interfaces (NI), the integrated 8×8 switch and its four links the possibility to boost the total communication performance and message throughput inside a SMP node. As the chip design is in its final stage at the time of writing, we use detailed simulations of all hard- and software components to precisely predict the performance of the ATOLL SAN and show that ATOLL is capable of serving efficiently several message transfers at a time while eliminating the need to multiplex the network interface in software.
ATOLL is jointly developed with Siemens PC Systems GmbH, Augsburg, Germany
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Rzymianowicz, L., Waack, M., Brüning, U., Fischer, M., Kluge, J., Schulz, P. (2000). Clustering SMP Nodes with the ATOLL Network: A Look into the Future of System Area Networks. In: Bubak, M., Afsarmanesh, H., Hertzberger, B., Williams, R. (eds) High Performance Computing and Networking. HPCN-Europe 2000. Lecture Notes in Computer Science, vol 1823. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45492-6_83
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DOI: https://doi.org/10.1007/3-540-45492-6_83
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