Capable of tens of millions of MPI messages per second, the Gemini ASIC complements current and future massively multicore and many-core processors. Each hybrid compute node is interfaced to the Gemini interconnect through HyperTransport 3.0 technology. This direct connect architecture bypasses the PCI bottlenecks inherent in commodity networks and provides a peak of over 20 GB/s of injection bandwidth per node. The Gemini router’s connectionless protocol scales from hundreds to hundreds of thousands of cores without the increase in buffer memory required in the point-to-point connection method of commodity interconnects.
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