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模拟计算是实现下一个人工智能创新时代的关键

Analog Compute is Key to The Next Era of AI Innovation

By Tim Vehling, Mythic
EETimes (January 5, 2022)

As AI applications become more popular in a growing number of industries, the need for more compute resources, more model storage capacity and, at the same time, lower power consumption is becoming increasingly important. Today’s digital processors used for AI applications struggle to deliver these challenging requirements, especially for large machine learning models running at the edge. Analog compute offers an innovative solution, enabling companies to get more performance at lower power consumption in a small form factor that’s also cost efficient.

The computational speeds and power efficiency of analog compared to digital have been promising for a long time. Historically, there has been a number of hurdles to developing analog systems, including the size and cost of analog processors. Recent approaches have shown that pairing analog compute with non-volatile memory (NVM) like flash memory – a combination called analog compute in-memory (CIM) – can eliminate these hurdles.

Unlike digital computing systems that rely on high-throughput DRAM that consumes too much power, analog CIM systems can take advantage of the incredible density of flash memory for data storage and computing. This eliminates the high power consumption that comes with accessing and maintaining data in DRAM in a digital computing system. With the analog CIM approach, processors can perform arithmetic operations inside NVM cells by manipulating and combining small electrical currents across the entire memory bank in a fast and low-power manner.

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Analog Compute is Key to The Next Era of AI Innovation

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