If on average we need to access memory once every 100 cycles, what is impact on our

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If on average we need to access memory once every 100 cycles, what is impact on our application?


On a CC-NUMA system, the cost of accessing non-local memory can limit our ability to utilize multiprocessing effectively. The following table shows the costs associated with access data in local memory versus non-local memory and the locality of our application expresses as the proportion of access that are local.Local load/store (cycle) 25 Non-local load/store (cycles) 200 % local accesses 20

Answer the following questions. Assume that memory accesses are evenly distributed through the application. Also, assume that only a single memory operation can be active during any cycle. State all assumptions about the ordering of local versus non-local memory operations.

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Computer Organization And Design The Hardware Software Interface

ISBN: 9780123747501

4th Revised Edition

Authors: David A. Patterson, John L. Hennessy

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