Cache coherence for CMPs. Miodrag Bolic. Private cache. Each cache bank is private to a particular core Cache coherence is maintained at the L2 cache level Intel Montecito , AMD Opteron , or IBM POWER6 . Private cache. Advantages . Disadvantages. Data blocks can get duplicated
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Data blocks can get duplicated
if the working set accessed by the different cores is not well-balanced, some caches can be over-utilized whilst others can be under-utilized
Many requests will be will be serviced by remote banks (L2 NUCA architecture)