The VIPS family of cache coherence protocols represents a breakthrough in efficiency and simplicity. VIPS requires negligible area cost and minimal complexity but offers better performance than a full-blown MESI or MOESI protocol at reduced energy consumption (in the on-chip interconnect and memory system). VIPS scales significantly better than other simple protocols (e.g., Token) in terms of network traffic.
VIPS IP is available for licensing.
VIPS Family members
VIPS exits in (compatible) variants depending on the set of features selected, the data classification method employed, and the target architecture. End-to-end VIPS systems can be constructed by combining VIPS variants.