IBM team builds low-power analog AI processor
by John Timmer - Aug 23, 2023
- https://arstechnica.com/science/2023/08/ibm-team-builds-low-power-analog-ai-processor/

"Large language models, the AI tech behind things like Chat GPT, are
just what their name implies: big. They often have billions of
individual computational nodes and huge numbers of connections
among them. All of that means lots of trips back and forth to
memory and a whole lot of power use to make that happen. And the
problem is likely to get worse.
One way to potentially avoid this is to mix memory and processing.
Both IBM and Intel have made chips that equip individual neurons
with all the memory they need to perform their functions. An
alternative is to perform operations in memory, an approach that
has been demonstrated with phase-change memory.
Now, IBM has followed up on its earlier demonstration by building a
phase-change chip that's much closer to a functional AI processor.
In a paper released on Wednesday by Nature, the company shows that
its hardware can perform speech recognition with reasonable
accuracy and a much lower energy footprint." ...

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