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What does IPU stand for in this context? The only use I know of is Image Processing Unit — silicon that is custom developed for cameras. https://en.wikipedia.org/wiki/Image_processor

This is clearly not that.

Edit: Intelligence Processing Unit. https://www.graphcore.ai/products/

I assume that the Bionic neural engine in Apple's A11 and later is an example of this?

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"IPU" was made up by graphcore to describe their processor, so you call choose to use the term for as many or as few processors as you want. IMO, any processor can be an "intelligence" processor.

Graphcore are coining the initialism, therefore I imagine they’re not keen on it being applied to anything other than their design and its novel architectural approach.

It’ll likely end up just like GPU though, as part of the industry’s nomenclature.

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