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The End of Deutsch-Schorr-Waite [cycle_detection.rs] (Re: Novacore goes Bisimulation: Scryer Prolog is Slow!)

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Hi,

Assume that we live in a world where we
have excess memory. So we can afford stacks!
And then make the crucial observation,

we can use the stack of the Prolog engine,
no need to create an artificial stack in C,
or use the native stack of C.

I guess SWI-Prolog has already groked the
first we can "afford stacks". But did anybody
already grok the "100% Prolog" idea?

Well we are not yet there 100% Prolog
has still an overhead. Here is a little
test acyclic_term/2:

/* SWI-Prolog 9.3.26, C Stacks and/or Agendas */
?- time((between(1,30,_), acyclic2, fail; true)).
% 330,150 inferences, 0.016 CPU in 0.023 seconds
(69% CPU, 21129600 Lips)
true.

/* Trealla Prolog 2.79.6, ?? */
?- time((between(1,30,_), acyclic2, fail; true)).
% Time elapsed 0.063s, 643413 Inferences, 10.166 MLips
    true.

/* Dogelog Player 1.3.5, 100% Prolog */
?- time((between(1,30,_), acyclic2, fail; true)).
% Zeit 115 ms, GC 0 ms, Lips 11803904, Uhr 28.07.2025 10:03
true.

/* Scryer Prolog 0.9.4-417, Deutsch-Schorr-Waite  */
?- time((between(1,30,_), acyclic2, fail; true)).
% CPU time: 0.130s, 626_829 inferences
true.

Bye

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Novacore goes Bisimulation: Scryer Prolog is Slow! Mild Shock <janburse@fastmail.fm> - 2025-07-25 14:30 +0200
  Is Mild Shock going rogue? (Re: Novacore goes Bisimulation: Scryer Prolog is Slow!) Mild Shock <janburse@fastmail.fm> - 2025-07-25 14:32 +0200
    Is Mostowski Collapse a professional mathematician (Re: Is Mild Shock going rogue?) Mild Shock <janburse@fastmail.fm> - 2025-07-25 14:32 +0200
      New Project Name: NovaCore becomes VibeCore (Re: Is Mostowski Collapse a professional mathematician) Mild Shock <janburse@fastmail.fm> - 2025-07-25 14:43 +0200
  The End of Deutsch-Schorr-Waite [cycle_detection.rs] (Re: Novacore goes Bisimulation: Scryer Prolog is Slow!) Mild Shock <janburse@fastmail.fm> - 2025-07-28 10:51 +0200
    Backtracking Branching Association List (Was: The End of Deutsch-Schorr-Waite [cycle_detection.rs]) Mild Shock <janburse@fastmail.fm> - 2025-07-28 10:57 +0200
      Do it like in acyclic_decompose/3 (Was: Backtracking Branching Association List) Mild Shock <janburse@fastmail.fm> - 2025-07-28 11:39 +0200
        Cache-Trashing vs Cache-Friendly [Code Example] (Re: Do it like in acyclic_decompose/3) Mild Shock <janburse@fastmail.fm> - 2025-07-28 17:27 +0200
    Re: The End of Deutsch-Schorr-Waite [cycle_detection.rs] (Re: Novacore goes Bisimulation: Scryer Prolog is Slow!) Jordon Molokovsky <ovm@lorr.ru> - 2025-07-28 12:56 +0000
      I guess your brain was "overheating" (Re: The End of Deutsch-Schorr-Waite [cycle_detection.rs]) Mild Shock <janburse@fastmail.fm> - 2025-07-28 17:17 +0200
        Re: I guess your brain was "overheating" (Re: The End of Deutsch-Schorr-Waite [cycle_detection.rs]) Alton Grammatakakis <kl@aaasi.gr> - 2025-07-28 16:09 +0000
          The difference is only in one letter "t" or "d" (Was: I guess your brain was "overheating") Mild Shock <janburse@fastmail.fm> - 2025-07-28 21:17 +0200
          Re: You literally wrote "overheat" (Re: I guess your brain was "overheating" (Re: The End of Deutsch-Schorr-Waite [cycle_detection.rs]) Neury Valetov <ntt@uovrav.ru> - 2025-07-28 19:44 +0000
            Don't put large memory in your computer it might "overheat" (Re: You literally wrote "overheat") Mild Shock <janburse@fastmail.fm> - 2025-07-29 15:57 +0200
            Re: Don't put large memory in your computer it might "overheat" (Was: You literally wrote "overheat") Mizraim Zelenenkov <iall@zm.ru> - 2025-07-29 16:00 +0000
              Why Russ Bots Again: Micro Penis? (Was: Don't put large memory in your computer it might "overheat" ) Mild Shock <janburse@fastmail.fm> - 2025-07-29 23:16 +0200
      Re: I guess your brain was "overheating" (Re: The End of Deutsch-Schorr-Waite [cycle_detection.rs]) Emile Paduchev <mcc@clleeeme.ru> - 2025-07-28 15:53 +0000
        You literally wrote "overheat" (Was: I guess your brain was "overheating") Mild Shock <janburse@fastmail.fm> - 2025-07-28 21:19 +0200
    Entering the Age of Rational Trees (2025) (Re: The End of Deutsch-Schorr-Waite [cycle_detection.rs]) Mild Shock <janburse@fastmail.fm> - 2025-08-16 13:05 +0200
  The pairs are nasty, otherwise not always slow! (Re: Novacore goes Bisimulation: Scryer Prolog is Slow!) Mild Shock <janburse@fastmail.fm> - 2025-07-30 14:44 +0200
  It was painful for my GC, but fixed now (Was: The pairs are nasty, otherwise not always slow!) Mild Shock <janburse@fastmail.fm> - 2025-07-30 14:49 +0200

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