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The oldest and most popular online compilers forum.en-usCompilers RSS kludge 0.1compilers-request@iecc.comwebmaster@iecc.comRe: These days what percentage of a CPU's work involves doing arithmetic computations versus other, non-arithmetic computations?"minf...@arcor.de" <minforth@arcor.de>
http://compilers.iecc.com/comparch/article/21-07-025
http://compilers.iecc.com/comparch/article/21-07-025Roger L Costello schrieb am Mittwoch, 14. Juli 2021 um 21:42:37 UTC+2:
> Hello Compiler Experts!
>
> As I understand it, computers were originally designed to do arithmetic
> computations and in the old days nearly 100% of a CPU's work involved
Have you implemented a parser or compiler in SQL?Roger L Costello <costello@mitre.org>
http://compilers.iecc.com/comparch/article/21-07-024
http://compilers.iecc.com/comparch/article/21-07-024Hello Compiler Experts!
I read this [1] on Quora:
> I have written some complex things in SQL, like a parser and compiler
Interesting!
Have you done that - written a parser and/or compiler in SQL? How did you do
it? Is there a web page or book that describes how to do it?
Re: These days what percentage of a CPU's work involves doing arithmetic computations versus other, non-arithmetic computations?Derek Jones <derek@NOSPAM-knosof.co.uk>
http://compilers.iecc.com/comparch/article/21-07-022
http://compilers.iecc.com/comparch/article/21-07-022Roger,
> As I understand it, computers were originally designed to do arithmetic
> computations and in the old days nearly 100% of a CPU's work involved
> arithmetic computations.
Knight did lots of work trying to compare computer performance,
Re: ancient floating point, These days what percentage of a CPU's work involves doing arithmetic computationsHans-Peter Diettrich <DrDiettrich1@netscape.net>
http://compilers.iecc.com/comparch/article/21-07-020
http://compilers.iecc.com/comparch/article/21-07-020On 7/16/21 6:31 PM, Philipp Klaus Krause wrote:
> [I've seen the replica Z1, which is entirely mechanical. I didn't realize
> it used floating point. -John]
Horst Zuse claims the Z1 had 22 bit floating point arithmetic.
<http://www.horst-zuse.homepage.t-online.de/z1.html>
Re: fast arithmetic hardware, was These days what percentage of a CPU's work involves doing arithmetic computationsGeorge Neuner <gneuner2@comcast.net>
http://compilers.iecc.com/comparch/article/21-07-018
http://compilers.iecc.com/comparch/article/21-07-018On Thu, 15 Jul 2021 23:49:55 -0700 (PDT), gah4 <gah4@u.washington.edu>
wrote:
>There is pretty much a continuous change, as processors get faster,
>then less efficient processing makes more sense.
>Among others, less efficient, interpreted languages have become
Re: ancient floating point, These days what percentage of a CPU's work involves doing arithmetic computationsPhilipp Klaus Krause <pkk@spth.de>
http://compilers.iecc.com/comparch/article/21-07-016
http://compilers.iecc.com/comparch/article/21-07-016>> any floating point hardware until the IBM 704 in 1954
>
> It is said that the Z3 (1941) was designed with floating-point.
>
> [â¦]
> [I don't think the Z3 was ever built other than as a much later
> retrocomputing project.Â Von Neumann apparently considered floating
Re: fast arithmetic hardware, was These days what percentage of a CPU's work involves doing arithmetic computationsgah4 <gah4@u.washington.edu>
http://compilers.iecc.com/comparch/article/21-07-014
http://compilers.iecc.com/comparch/article/21-07-014On Thursday, July 15, 2021 at 10:22:58 AM UTC-7, gah4 wrote:
(snip, I wrote)
> Close to zero. Remember, the CPU is most of the time sitting there waiting
> for you to do something. Some systems have an actual "null job",
> accumulating the CPU time not used for anything else.
Re: These days what percentage of a CPU's work involves doing arithmetic computations versus other, non-arithmetic computations?"Robin Vowels" <robin51@dodo.com.au>
http://compilers.iecc.com/comparch/article/21-07-012
http://compilers.iecc.com/comparch/article/21-07-012----- Original Message -----
From: "Roger L Costello" <costello@mitre.org>
Sent: Thursday, July 15, 2021 4:30 AM
> As I understand it, computers were originally designed to do arithmetic
> computations and in the old days nearly 100% of a CPU's work involved
Re: These days what percentage of a CPU's work involves doing arithmetic computations versus other, non-arithmetic computations?"Robin Vowels" <robin51@dodo.com.au>
http://compilers.iecc.com/comparch/article/21-07-010
http://compilers.iecc.com/comparch/article/21-07-010----- Original Message -----
From: "gah4" <gah4@u.washington.edu>
Sent: Thursday, July 15, 2021 7:31 PM
> On Wednesday, July 14, 2021 at 12:42:37 PM UTC-7, Roger L Costello wrote:
>> Hello Compiler Experts!
>
>> As I understand it, computers were originally designed to do arithmetic
Re: These days what percentage of a CPU's work involves doing arithmetic computations versus other, non-arithmetic computations?Hans-Peter Diettrich <DrDiettrich1@netscape.net>
http://compilers.iecc.com/comparch/article/21-07-008
http://compilers.iecc.com/comparch/article/21-07-008On 7/15/21 11:31 AM, gah4 wrote:
> On Wednesday, July 14, 2021 at 12:42:37 PM UTC-7, Roger L Costello wrote:
>> I look at what I now do on a daily basis with computers and it is primarily
>> text processing. My guess is that "text processing" at the machine level