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parallel random-access machine (parallel RAM or PRAM (Was: What is analog computing nowadays?)

From Mild Shock <janburse@fastmail.fm>
Newsgroups sci.physics, sci.physics.relativity, comp.lang.prolog
Subject parallel random-access machine (parallel RAM or PRAM (Was: What is analog computing nowadays?)
Date 2025-12-01 12:15 +0100
Message-ID <10gjtck$t77m$1@solani.org> (permalink)
References <10ghds1$tg19$2@solani.org> <10gheso$tgp1$2@solani.org> <10gjqeu$t54i$2@solani.org> <187d12daedf1c2ff$5163849$2551467$c2365abb@news.newsdemon.com>

Cross-posted to 3 groups.

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Hi,

You wrote:

 > No, they don't, they just add one (or some)
 > more layer on top of it.

Techically they are not von Neuman architecture.
Unified Memory with Multiple Tensor Cores is
not von Neuman architecture. But the architecture

is possibly toned down by Data Flow, so that
in principle one can run the same thing on a
von Neuman architecture.

But in principle the architecture is rather:

parallel random-access machine (parallel RAM
or PRAM) is a shared-memory abstract machine.
https://en.wikipedia.org/wiki/Parallel_RAM

The above class of machines is not widely know.
But PRAM has been also studied, already in the 80's.

Bye

Maciej Woźniak schrieb:
> On 12/1/2025 11:25 AM, Mild Shock wrote:
>> Hi,
>>
>> 1) Classical computing = Boolean logic + von Neumann architecture
> 
> 
> 
>>
>> For decades, all mainstream computation was built on:
>> Boolean algebra
>> Logic gates
>> Scalar operations executed sequentially
>> Memory and compute as separate blocks
>> Even floating-point arithmetic was implemented on top of Boolean logic.
>>
>> This shaped how programmers think — algorithms expressed
>> as symbolic operations, control flow, and discrete steps.
>>
>> 2) AI accelerators break from that model
> 
> No, they don't, they just add one (or some)
> more layer on top of it.
> 
> On the other hand, neural networks were
> always outside. So were quantum computers.
> It was never the only one and never the
> most powerful one.
> 
> 
> 
>

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Could AlphaEvolve find the sixth busy beaver ? Mild Shock <janburse@fastmail.fm> - 2025-11-30 13:38 +0100
  An old Busy Beaver ASIC (Application-Specific Integrated Circuit) (Was: Could AlphaEvolve find the sixth busy beaver ?) Mild Shock <janburse@fastmail.fm> - 2025-11-30 13:54 +0100
  An old Busy Beaver ASIC (Application-Specific Integrated Circuit) (Was: Could AlphaEvolve find the sixth busy beaver ?) Mild Shock <janburse@fastmail.fm> - 2025-11-30 13:55 +0100
    What is analog computing nowadays? (Re: An old Busy Beaver ASIC (Application-Specific Integrated Circuit) (Was: Could AlphaEvolve find the sixth busy beaver ?) Mild Shock <janburse@fastmail.fm> - 2025-12-01 11:25 +0100
      Wake-up call until everybody gets ear-bleeding (Re: What is analog computing nowadays?) Mild Shock <janburse@fastmail.fm> - 2025-12-01 12:01 +0100
        BB(745) is independent of ZFC (Was: Wake-up call until everybody gets ear-bleeding) Mild Shock <janburse@fastmail.fm> - 2025-12-01 12:07 +0100
          Write ZFC formulas on a tape (of a Turing machine) (Re: BB(745) is independent of ZFC ) Mild Shock <janburse@fastmail.fm> - 2025-12-02 17:18 +0100
            Turing machines have neurons (Re: Write ZFC formulas on a tape (of a Turing machine)) Mild Shock <janburse@fastmail.fm> - 2025-12-02 17:19 +0100
              A logical calculus in nervous activity [McCulloch & Pitts 1943] (Re: Turing machines have neurons) Mild Shock <janburse@fastmail.fm> - 2025-12-02 17:20 +0100
                Busy Beaver and Theory Consistency (Was: A logical calculus in nervous activity [McCulloch & Pitts 1943]) Mild Shock <janburse@fastmail.fm> - 2025-12-02 17:39 +0100
                Busy Beaver and Theory Consistency (Was: A logical calculus in nervous activity [McCulloch & Pitts 1943]) Mild Shock <janburse@fastmail.fm> - 2025-12-02 17:43 +0100
                Re: Busy Beaver and Theory Consistency (Was: A logical calculus in nervous activity [McCulloch & Pitts 1943]) Mild Shock <janburse@fastmail.fm> - 2025-12-02 23:18 +0100
      Re: What is analog computing nowadays? (Re: An old Busy Beaver ASIC (Application-Specific Integrated Circuit) (Was: Could AlphaEvolve find the sixth busy beaver ?) Maciej Woźniak <mlwozniak@wp.pl> - 2025-12-01 12:09 +0100
        parallel random-access machine (parallel RAM or PRAM (Was: What is analog computing nowadays?) Mild Shock <janburse@fastmail.fm> - 2025-12-01 12:15 +0100
          Re: parallel random-access machine (parallel RAM or PRAM (Was: What is analog computing nowadays?) Maciej Woźniak <mlwozniak@wp.pl> - 2025-12-01 13:23 +0100
            Nope, you can't, because of the CRCW instuction (Was: parallel random-access machine) Mild Shock <janburse@fastmail.fm> - 2025-12-01 17:12 +0100
              Algorithm introduced in Hogwild! SGD (Niu et al., 2011) (Was: Nope, you can't, because of the CRCW instuction) Mild Shock <janburse@fastmail.fm> - 2025-12-01 17:31 +0100
                PRAMs might be closer to physics: Boltzman machines, etc.. (Was: Algorithm introduced in Hogwild! SGD) Mild Shock <janburse@fastmail.fm> - 2025-12-01 18:02 +0100
              Re: Nope, you can't, because of the CRCW instuction (Was: parallel random-access machine) Maciej Woźniak <mlwozniak@wp.pl> - 2025-12-01 17:59 +0100
                PRAMs might be closer to physics: Boltzman machines, etc.. (Re: Nope, you can't, because of the CRCW instuction) Mild Shock <janburse@fastmail.fm> - 2025-12-01 18:05 +0100
                PRAMs might be closer to physics: Boltzman machines, etc.. (Re: Nope, you can't, because of the CRCW instuction) Mild Shock <janburse@fastmail.fm> - 2025-12-01 18:08 +0100
                Physics more difficult than Rasperry LED cube? (Was: PRAMs might be closer to physics: Boltzman machines, etc..) Mild Shock <janburse@fastmail.fm> - 2025-12-01 18:25 +0100
            Re: parallel random-access machine (parallel RAM or PRAM (Was: What is analog computing nowadays?) Thomas Heger <ttt_heg@web.de> - 2025-12-03 07:17 +0100
              Re: parallel random-access machine (parallel RAM or PRAM (Was: What is  analog computing nowadays?) Python <python@cccp.invalid> - 2025-12-03 06:46 +0000
              Re: parallel random-access machine (parallel RAM or PRAM) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-03 08:02 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas Heger <ttt_heg@web.de> - 2025-12-04 07:50 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-12-04 09:57 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-06 17:02 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas Heger <ttt_heg@web.de> - 2025-12-07 10:22 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-07 10:39 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-07 10:46 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-12-07 11:42 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Michael S <already5chosen@yahoo.com> - 2025-12-07 16:26 +0200
                Re: parallel random-access machine (parallel RAM or PRAM) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-12-08 04:25 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-08 08:51 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Michael S <already5chosen@yahoo.com> - 2025-12-08 13:58 +0200
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas Heger <ttt_heg@web.de> - 2025-12-09 09:15 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas Heger <ttt_heg@web.de> - 2025-12-08 08:21 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-12-08 09:06 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas Heger <ttt_heg@web.de> - 2025-12-09 09:19 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-09 11:43 -0800
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas Heger <ttt_heg@web.de> - 2025-12-10 08:19 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-10 09:56 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-10 10:01 -0800
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas Heger <ttt_heg@web.de> - 2025-12-11 09:02 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-11 08:48 -0800
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-12 01:58 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-11 20:45 -0800
                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-11 23:07 -0800
                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-12 00:49 -0800
                Re: parallel random-access machine (parallel RAM or PRAM) "Paul.B.Andersen" <relativity@paulba.no> - 2025-12-14 14:27 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-14 10:25 -0800
                Re: parallel random-access machine (parallel RAM or PRAM) "Paul.B.Andersen" <relativity@paulba.no> - 2025-12-14 21:22 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-14 12:52 -0800
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                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-14 10:27 -0800
                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-14 10:58 -0800
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas Heger <ttt_heg@web.de> - 2025-12-15 07:50 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) "Paul.B.Andersen" <relativity@paulba.no> - 2025-12-15 14:05 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas Heger <ttt_heg@web.de> - 2025-12-16 08:44 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) "Paul.B.Andersen" <relativity@paulba.no> - 2025-12-16 22:58 +0100
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                Re: parallel random-access machine (parallel RAM or PRAM) "Paul.B.Andersen" <relativity@paulba.no> - 2025-12-17 14:00 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-17 10:49 -0800
                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-17 11:23 -0800
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                Re: parallel random-access machine (parallel RAM or PRAM) The Starmaker <starmaker@ix.netcom.com> - 2025-12-19 12:02 -0800
                Re: parallel random-access machine (parallel RAM or PRAM) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-17 18:24 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) John Hasler <john@sugarbit.com> - 2025-12-17 11:58 -0600
                Re: parallel random-access machine (parallel RAM or PRAM) Maciej Woźniak <mlwozniak@wp.pl> - 2025-12-12 07:19 +0100
                Re: parallel random-access machine (parallel RAM or PRAM) "Paul B. Andersen" <relativity@paulba.no> - 2025-12-12 11:35 +0100
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                Re: parallel random-access machine (parallel RAM or PRAM) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-06 05:30 +0100
  Re: Could AlphaEvolve find the sixth busy beaver ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-11-30 14:06 +0100
    You shouldn't use NPM hacked services (Was: Could AlphaEvolve find the sixth busy beaver ?) Mild Shock <janburse@fastmail.fm> - 2025-11-30 22:27 +0100
      Its a subconscious hypothesis (Was: You shouldn't use NPM hacked services) Mild Shock <janburse@fastmail.fm> - 2025-11-30 22:33 +0100
        What if of the cosmos does a BB dance? (Was: Its a subconscious hypothesis) Mild Shock <janburse@fastmail.fm> - 2025-11-30 22:43 +0100
          Re: What if of the cosmos does a BB dance? (Was: Its a subconscious hypothesis) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-01 23:43 +0100
          Re: What if of the cosmos does a BB dance? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-01 23:45 +0100
            newsreader where you can see the message source (Was: What if of the cosmos does a BB dance?) Mild Shock <janburse@fastmail.fm> - 2025-12-02 00:00 +0100
              Re: newsreader where you can see the message source (Was: What if of the  cosmos does a BB dance?) Python <python@cccp.invalid> - 2025-12-02 03:10 +0000
                Re: newsreader where you can see the message source (Was: What if of the cosmos does a BB dance?) Mild Shock <janburse@fastmail.fm> - 2025-12-02 11:51 +0100
                Re: newsreader where you can see the message source (Was: What if of the cosmos does a BB dance?) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-02 20:36 +0100
                Re: newsreader where you can see the message source (Was: What if of the cosmos does a BB dance?) Ross Finlayson <ross.a.finlayson@gmail.com> - 2025-12-01 21:42 -0800
                Orbits of planets in the Sol System (was: newsreader where you can see the message source) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-04 03:29 +0100
                Orbits of planets in the Sol System Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-04 03:30 +0100
              Re: newsreader where you can see the message source (Was: What if of the cosmos does a BB dance?) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-02 20:35 +0100
                Spock thinks I am interested in his gibberish (Re: newsreader where you can see the message source) Mild Shock <janburse@fastmail.fm> - 2025-12-02 23:22 +0100
                Is it like "Wirres Mückengelaber" ? (Was: Spock thinks I am interested in his gibberish) Mild Shock <janburse@fastmail.fm> - 2025-12-02 23:28 +0100
            newsreader where you can see the message source (Re: What if of the cosmos does a BB dance?) Mild Shock <janburse@fastmail.fm> - 2025-12-02 00:11 +0100
            Re: What if of the cosmos does a BB dance? Thomas Heger <ttt_heg@web.de> - 2025-12-03 07:22 +0100
              Re: What if of the cosmos does a BB dance? The Starmaker <starmaker@ix.netcom.com> - 2025-12-03 08:27 -0800
                Re: What if of the cosmos does a BB dance? Thomas Heger <ttt_heg@web.de> - 2025-12-04 07:57 +0100
        Re: Its a subconscious hypothesis (Was: You shouldn't use NPM hacked services) Maciej Woźniak <mlwozniak@wp.pl> - 2025-11-30 23:14 +0100
      Re: You shouldn't use NPM hacked services (Was: Could AlphaEvolve find the sixth busy beaver ?) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-01 23:23 +0100
        Re: You shouldn't use NPM hacked services (Was: Could AlphaEvolve find the sixth busy beaver ?) Mild Shock <janburse@fastmail.fm> - 2025-12-02 00:05 +0100
          Re: You shouldn't use NPM hacked services Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2025-12-02 20:29 +0100
    What Spock aka Thomas 'PointedEars' Lahn missed (Was: Different Hubble Theories: de Sitter Energy) Mild Shock <janburse@fastmail.fm> - 2025-12-03 01:09 +0100
  The size of a Gödel sentence G (Re: Could AlphaEvolve find the sixth busy beaver ?) Mild Shock <janburse@fastmail.fm> - 2025-12-03 09:00 +0100
  The size of a Gödel sentence G (Re: Could AlphaEvolve find the sixth busy beaver ?) Mild Shock <janburse@fastmail.fm> - 2025-12-03 09:00 +0100
    Attacking the Busy Beaver 5 [1989] (Re: The size of a Gödel sentence G) Mild Shock <janburse@fastmail.fm> - 2025-12-03 09:10 +0100
  Re: Could AlphaEvolve find the sixth busy beaver ? Sylvia Else <sylvia@email.invalid> - 2025-12-04 12:59 +0800

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