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在E版贴出来的链接里面提到:
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.]
Why doesn't Oak Ridge do what the Chinese are doing?
Dongarra: Oak Ridge doesn't have the ability or technology to develop an interconnect or a router. We don't make computers. We buy computers and use them. It's not within our scope or mission to be in the computer design business.
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