【Hacker News搬运】Bendy RISC-V处理器

hackernews

Title: A Bendy RISC-V Processor

Bendy RISC-V处理器

Text:

Url: https://spectrum.ieee.org/flexible-risc-v

很抱歉，作为一个AI，我无法直接访问或处理外部网站内容。不过，我可以帮助你分析你从那个链接获取的内容，并将其翻译成中文。

如果你已经从链接获取了文章内容，并希望我帮你分析和翻译，请提供文章的文本内容，我会尽力帮你完成。以下是一个假设性的例子，如果你提供了具体的内容，我会根据实际内容进行调整：

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原文假设：
Flexible RISC-V: A New Architecture for a New Era of Computing

中文翻译：
灵活的RISC-V：适应新时代计算的新架构

分析：
这篇文章可能讨论了RISC-V（精简指令集架构）的最新发展，特别是它如何适应不断变化的计算需求。RISC-V是一种开源指令集架构，因其可扩展性和灵活性而受到关注。文章可能会提到RISC-V的新特性、它如何与传统架构相比，以及它在未来计算设备中的应用前景。

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请提供文章的实际内容，以便我能为你提供更准确的分析和翻译。

Post by: rbanffy

Comments:

londons_explore: Nearly any uses for flexible electronics would also be satisfied by sufficiently small electronics such that lack of flexibility doesn't matter.Eg. rather than having every pixel in your flexible screen be flexible, you make each pixel rigid and have the joints between pixels flexible.In this case, this design is based on SERV, which uses ~2100 gate equivalents, which in a recent tech node would be 40 um^2. That means you could fit a 10x10 grid of these in a single pixel on an iphone screen.I really can't think of a use case where a region 1/100th of an iphone screen pixel being rigid would be a problem.

londons_explore: 柔性电子器件的几乎任何用途也可以通过足够小的电子器件来满足；没关系 例如，与其让柔性屏幕中的每个像素都是柔性的，不如让每个像素都变得刚性，让像素之间的关节变得灵活 在这种情况下，这种设计基于SERV，它使用了大约2100个栅极等效物，在最近的技术节点中，这将是40 um^2。这意味着你可以在iphone屏幕上的一个像素内安装一个10x10的网格 我真的可以；不要想到一个用例，其中区域1；iphone屏幕像素的100分之一是刚性的，这将是一个问题。

kragen: 60 kilohertz on 6 milliwatts sounds pretty bad (that's 100 milliwatts per megahertz and so 20 milliamps per megahertz if we assume 5 volts, while 0.06 milliamps per megahertz is common for low-power processors) but it's actually far, far worse than it sounds because serv is bit-serial, requiring, i think, 32 cycles per instruction. so you're looking at something like 5000 times the energy consumption of existing off-the-shelf microcontrollersthe suggested price of a dollar is about 10x worse than something like the py32, ch32v003, or pmc150, which are also faster and more power-efficientthat doesn't mean this is bad research! it just means it isn't yet developed to a state where there's likely to be a market for it. it's very helpful to know that serv occupies 12600 gates, for example, and that the flex-rv process provides 720 gates per square millimeter. it's very plausible you could design something useful with it that had 600 gates, was less than a square millimeter, used 300 microwatts at 60 kilohertz, and cost five cents, for example; that's a niche that silicon photolithography is struggling to fill because of high per-chip costs. you could fit a 6502 into twice thatanother potentially interesting niche is low power density; for implanting into your body you don't want hot spots that can burn your tissues (though you'd have to encapsulate the igzo behind something biocompatible)

kragen: 6毫瓦的60千赫兹听起来很糟糕（如果我们假设5伏，那么每兆赫100毫瓦，所以每兆赫20毫安，而每兆赫0.06毫安对于低功耗处理器来说很常见），但；实际上，这比听起来要糟糕得多，因为serv是位串行的，我认为每条指令需要32个周期。所以你；重新审视现有现成微控制器的能耗约为5000倍，建议的1美元价格比py32、ch32v003或pmc150等更快、更节能的产品低约10倍；我不是说这是一项糟糕的研究！这只是意味着它不是；尚未发展到一种；这可能是一个市场；例如，知道serv占用12600个门，而flex rv工艺每平方毫米提供720个门，这非常有帮助。它；很有可能，你可以用它设计一些有用的东西，比如有600个门，不到一平方毫米，在60千赫兹下使用300微瓦，成本为5美分；即；由于每个芯片的成本很高，硅光刻正在努力填补这一利基市场。你可以把6502装进两倍的空间，另一个潜在的有趣利基是低功率密度；为了植入你的身体，你不需要；不希望热点烧伤你的组织（尽管你必须将igzo包裹在生物相容性的东西后面）

dragontamer: > Each Flex-RV microprocessor has a 17.5 square millimeter core and roughly 12,600 logic gates. The research team found Flex-RV could run as fast as 60 kilohertz while consuming less than 6 milliwatts of power.This is pretty bad from a power efficiency perspective. KHz speed silicon microcontrollers are closer to ~dozens of microwatts, about two decades of magnitude less power than this flex-circuit.Furthermore, small silicon dies can be placed into flexPCBs. I'm sure a flexchip has more flexibility than a solid silicon die on a flex board but there's a question of how much flex is actually needed in products?---------Still, I recognize that a fully functional CPU on this process is a major achievement. I'm just trying to think of a commercial application, that's all.

dragontamer: &gt；每个Flex RV微处理器都有一个17.5平方毫米的内核和大约12600个逻辑门。研究小组发现，Flex RV的运行速度可达60千赫兹，功耗不到6毫瓦 从能效的角度来看，这是相当糟糕的。KHz速度的硅微控制器接近几十微瓦，比这种柔性电路低大约二十年的功率 此外，小型硅芯片可以放置在柔性PCB中。我；我确信柔性芯片比柔性板上的实心硅管芯具有更大的灵活性，但；问题是产品实际上需要多大的灵活性 ---------不过，我认识到，在这个进程上使用功能齐全的CPU是一项重大成就。我；我只是想考虑一个商业应用，那就是；这就是全部。

eric__cartman: > Performance varied between a 4.3 percent slowdown to a 2.3 percent speedup depending on the way it was bent.I have practically zero knowledge on the physics behind semiconductors to try to think why this could occur but I find it fascinating nonetheless.

eric__cartman: &gt；性能在4.3%的减速到2.3%的加速之间变化，具体取决于它的弯曲方式 我对半导体背后的物理学几乎一无所知，试图思考为什么会发生这种情况，但我仍然觉得这很有趣。

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