Feldman的软件的速度比较假定(“通用数字”)与现有硬件浮子的速度比较?

发布于 2025-02-10 17:16:10 字数 335 浏览 1 评论 0 原文

提议的假设(“通用数字”)实现 Noreferrer“>似乎很有趣。

是否有人执行任何基准来将他的实施(在软件)与现有硬件浮子速度进行比较?

我很好奇是否在实施此速度方面是否有任何速度优势,用于使用现有硬件支持用作默认通用数字系统VS的编程语言。这似乎令人怀疑,但当然值得好奇。

The proposed posits ("universal numbers") implementation by Michael Feldman seems quite interesting.

Has anyone performed any benchmarks to compare his implementation (in software) against existing hardware floats speeds?

I am curious as to whether there's any speed advantage at all in implementing this for a programming language to use as a default universal number system vs using existing hardware support. It seems doubtful, but certainly worthy of curiosity.

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云醉月微眠 2025-02-17 17:16:10

I'm definitely far from an expert, but if anything, my own research on the subject has led me to https://ieeexplore.ieee.org/document/8892116 and https://arxiv.org/abs/2305.06946 (among others), and there are clearly several trade-offs that will influence the result of such a benchmark : for some, Posit would need 30% more silicon area for similar??? functionality. For others, Posit32 should be compared to Float64 in terms of performance, so a win of 35% could be expected. But whether you implement a quire or only part of it in silicon will also be seriously impacting the performance. I personally chose to investigate another use case : using 16-bit (and 8-bit) Posits for the ATmega328 found in Arduino boards to replace float32 calculations for simplified RL algorithms. So in short, very likely your mileage will vary according to your domain of interest.

Oh BTW, Mister Feldman did write an article on Posit, he didn't make an implementation.

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