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AWS designed 32-core arm failover N1 CPU for ECS

via:cnBeta.COM     time:2019/12/3 10:05:10     readed:747

AWS, Amazon's cloud service department, has just designed a new multi-core processor for its own cloud server. It is said that it adopts arm's latest neoverse N1 architecture. Compared with the initial graviton processor, it has more cores and can significantly improve performance.The unnamed AWS CPU integrates up to 32 cores, Reuters reported, citing two sources. The chip can use fabric interface to connect to a variety of special accelerators, thus greatly improving the processing speed of some computing work.

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(Title viaAnandTech)

Neoverse N1, also known as Ares, is very similar to the cortex-a76 microarchitecture of arm for the consumer market: it has four layers of access / decoder, the pipeline depth is only 11 levels, and can be reduced to 9 levels when necessary.

At the same time, neoverse N1 is designed to run at a relatively high frequency to provide maximum single thread performance, and has a different 1MB L2 cache architecture (CACHE itself should not be part of the architecture) and other enhancements.

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The clock frequency of neoverse N1 chip is up to 3.1 GHz, and the thermal design power consumption (TDP) of each SOC is about 100W. Obviously, the microarchitecture was optimized for the cloud server workload from the beginning.

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