Kouichi Kumon

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This paper proposes a scalable communication layer for a multi-dimensional hyper crossbar network using multiple Gigabit Ethernet for the PACS-CS system which consists of 2560 single-processor nodes and a 16 x 16 x 10 three dimensional hyper-crossbar network (3D-HXB). To realize a high performance communication layer using multiple existing Ethernet(More)
We have been developing a large scale PC cluster named PACS-CS (Parallel Array Computer System for Computational Sciences) at Center for Computational Sciences, University of Tsukuba, for wide variety of computational science applications such as computational physics, computational material science, computational biology, etc. We consider the most(More)
In a concurrent logic language, mapping from the objects in a programmer's mind to actual processes and messages often results in less-than-optimum performance. One reason for this is that an incorrect prediction of the dynamic behavior and the resulting irrelevant mapping make the execution threads short and thus result in frequent suspensions. Also, good(More)
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