- Is China a supercomputer threat? Creation of Super Computer

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Is China a supercomputer threat? Creation of Super Computer

Date Added: October 29, 2010 06:06:17 AM

Q: Does Oak Ridge have anything analogous to the Chinese hybrid system? Dongarra: Oak Ridge has a small version of a machine that is hybrid in nature. So, this is an acquisition that just took place...out of a grant from the National Science Foundation. It involved Oak Ridge National Labs, University of Tennessee, and Georgia Tech. But it's much, much smaller than the Chinese system. The machine is in place and testing is being carried out at Oak Ridge. A node has two Intel Westmere chips and three Nvidia Fermi boards. There are 120 nodes in the system. What makes the Chinese supercomputer so fast? Dongarra: The Chinese designed their own interconnect. It's not commodity. It's based on chips, based on a router, based on a switch that they produce. Is that in essence the secret sauce? Dongarra: It's similar to Cray. Cray's contribution, besides the integration and software, is the interconnect network. They have a very fast interconnect that makes that machine perform very well. Though [the Chinese] project is based on U.S. processors, it uses a Chinese interconnect. That's the interesting part. They've put something together that is roughly twice the bandwidth of an InfiniBand interconnect [which is used widely in the U.S.]

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