Eileen Yoon

eiln.github.io

Popular posts: 2
Total points: 459
HN comments: 72
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Systems & Performance 2 Hardware & Electronics 2

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Retrospectively Reverse-Engineering Apple's Neural Engine

2026241 points36 comments Systems & Performance details

I stopped working on the reverse-engineered Apple Neural Engine (ANE) driver three years ago, upon a sad mini realization that the ANE block is just not that useful, and I could be doing more useful things, and moved onto upstreaming other, more useful, blocks. The ANE's architecture was too opinionated to build a…

Getting 50 GB/S Back from the Apple Neural Engine

2026218 points36 comments Systems & Performance details

An RTL performance erratum in the Apple M3 Neural Engine throttles DRAM weight streaming throughput down to 17–19 GB/s from the nominal 45–60 GB/s, whenever the total weight size is an integer multiple of 1 MiB, which currently affects 7 of ANEMLL ’s 15 models. Avoiding the problematic path in the kernel DMA engine's…