Re: Retirement hobby (was Re: 80286 protected mode)

Stephen Fuld <sfuld@alumni.cmu.edu.invalid> schrieb:

On 10/28/2024 9:30 AM, Thomas Koenig wrote:

MitchAlsup1 <mitchalsup@aol.com> schrieb:
 

In posits, a quire is an accumulator with as many binary digits
as to cover max-exponent to min-exponent; so one can accumulate
an essentially unbounded number of sums without loss of precision
--to obtain a sum with a single rounding.

 
Not restricted to posits, I believe (but the term may differ).
 
At university, I had my programming
courses on a Pascal compiler which implemented
https://en.wikipedia.org/wiki/Karlsruhe_Accurate_Arithmetic ,
a hardware implementation was on the 4361 as an option
https://en.wikipedia.org/wiki/IBM_4300#High-Accuracy_Arithmetic_Facility

>
Another newer alternative.  This came up on my news feed.  I haven't
looked at the details at all, so I can't comment on it.
>
https://arxiv.org/abs/2410.03692

That is about another number representation for AI, trying to squeeze
more AI performance out of few bits.

Personally, I like the approach of doing analog calculation for
the low-accuracy dot products that they do, followed by an A/D
converter.  There is a company doing that, but I forget its name.