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From: Mild Shock
Newsgroups: comp.lang.prolog
Subject: Re: ANN: Dogelog Player 1.2.0 (Binary Streams)
Date: Wed, 29 May 2024 09:08:21 +0200
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Dogelog Player is a Prolog system 100% written
in Prolog itself. It is unique among Prolog systems
in that it does not have a concept of a stack frame,
so a DEC10 ancestor/1 built-in or even error
backtraces are not available by design.
We were interested in a larger example to see whether
this design pays off. In the following we show an
implementation of Linear Conflict A* Search to
solve 8-puzzles and compare with newer Prolog
systems such as Scryer Prolog and Trealla Prolog.
One gets an itch more heuristic power by adding
on top of Manhattan distance a goal conflict
measure. Performance wise SWI-Prolog still
leads the pack, but we leave behind both Scryer-Prolog
and Trealla Prolog. Interestingly we are also
not bugged by some break out in the 2nd test.
See also:
Linear Conflict A* Search in Dogelog Player
https://www.facebook.com/groups/dogelog
Linear Conflict A* Search in Dogelog Player
https://twitter.com/dogelogch/status/1795710383682118115
Mild Shock schrieb:
> Dear All,
>
> We are happy to announce a new edition
> of the Dogelog player:
>
> - Quasi-Parallel Loader:
> The Prolog text loader is now task aware.
> Although tasks are only quasi-parallel, issues
> of mutex might appear, which have been solved
> by using the meta call shield/1 which temporarly
> disables auto-yield. Back traces showing the
> current file loading chain are now task local.
>
> - Binary Files:
> As before the target platforms JavaScript
> nodeJS, Python and Java support file system
> access. A new open option type/1 has been added,
> which can have the values 'text' or 'binary' and
> which defaults to 'text'. 'binary' is simply
> treated as 'text' with latin1 encoding instead of utf8.
>
> - Binary HTTP:
> To give the benefit of a simple binary
> treatment to the HTTP protocol as well, i.e. no
> extra get_byte/[1,2] builtins and no extra byte
> array datatype, since codes and atoms can be used
> as before, we braught the type/1 option to the
> APIs of the HTTP clients and the HTTP servers.
>
> Have Fun!
> Jan Burse, 22.05.2024, http://www.xlog.ch/