Zen 2 APUs/"Renoir" discussion thread

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Tup3x

Senior member
Dec 31, 2016
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I am still curious as to why anyone needs AI enhancements in iGPUs, phone SoCs, and the like. What's the play here? Run massive AI learning clusters with these things?
Image segmentation for camera etc. on phones.
 

soresu

Senior member
Dec 19, 2014
220
35
91
I am still curious as to why anyone needs AI enhancements in iGPUs, phone SoCs, and the like. What's the play here? Run massive AI learning clusters with these things?
AI/ML accelerators in these things are mainly for inference purposes - training most NN's takes considerable time and power (watts and TOPS), whereas inference using a fully trained NN can be extremely efficient even on these relatively small ASIC's.

As for actual use cases, ML can be used for various vision/imaging and audio based tasks (feature/facial recognition, image stabilisation, speech synthesis, voice recognition, handwriting recognition?) - basically anything with identifiable patterns will benefit from it, if the NN can be compressed efficiently enough to run on a small footprint.

One of the Daala/AV1 developers (Xiphmont) recently developed a new audio codec that uses ML for ultra low bandwidth (1.6 kbps), presumably for narrow band only (voice). Link here.
 
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