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Sophie Wilson - The Future of Microprocessors

Erlang Solutions · 57.1K views · 2016-11-22 · 46:36

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Overview

Sophie Wilson, designer of the ARM instruction set, discusses the future of microprocessors, including the economics of scaling below 28nm and why much of a chip must stay powered off.

On Hacker News

HN commenters cite it for the claim that process scaling beyond 28nm is uneconomic and for dark silicon.

Recommended by 2 HN people across 2 months · HN mentions 2016–2018

Topics

Computer architecture & CPUsSemiconductors & chip manufacturing
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sophie wilsonarmmoore's lawdark siliconchip economics

What people said

gens · 2017-05 · Recommendation

It is hard (read expensive) to go under 14nm. Sophie Wilson talks about it much better then i could. [VIDEO]

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dkarapetyan · 2016-12 · Recommendation

Moore's law has been dead for a while now. Most of the chip in your phone is powered off because otherwise it would burn up. Highly recommend watching this video: [VIDEO]

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zengid · 2018-05 · Reference

I agree that this article hits pretty hard against a lot of assumptions about how our machines are working. I also feel like the author is trying to say something about how imperative scalar (meaning 'operates on one datum at a time') languages are causing more trouble than they're worth. Sophie Wilson said something similar in her talk about the future of microprocessors [1]. This implies that declarative and functional semantics would be more amenable to parallelization, as the author mentions in the article, as well as allowing the compiler more freedom to deduce a suitable 'reordering' of operations that would better fit the memory access heuristics the machine is using. [1] [VIDEO]

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Sources

Video by Erlang Solutions, played through YouTube.

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