System Bits: Sept. 15


Cache-coherence innovation for thousand-core chips MIT researchers are getting ready to unveil what they say is the first fundamentally new approach to cache coherence in more than three decades. They reminded that in a modern, multicore chip, every processor core has its own small memory cache, where it stores frequently used data. The chip also has a larger, shared cache, which all the cores... » read more

The Evolving Interconnect


By Ann Steffora Mutschler Chip interconnect protocol requirements are evolving as designs move to 20nm and below process geometries, and not always in predictable ways. At least part of this is being driven by what an SoC is used for. The continued push to shrink features opens up real estate at each new process node. For the past decade, that real estate has been used to add more featu... » read more

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