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Small-Scale Shared Memory

Potential HW Coherency Solutions. Snooping Solution (Snoopy Bus):Send all requests for data to all processorsProcessors snoop to see if they have a copy and respond accordingly Requires broadcast, since caching information is at processorsWorks well with bus (natural broadcast medium)Dominates

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Small-Scale Shared Memory

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    1. Small-Scale—Shared Memory Caches serve to: Reduce latency of access Valuable for both private (by single processor) data and shared (by multiple processors) data What about cache consistency?

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