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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!weretis.net!feeder9.news.weretis.net!reader5.news.weretis.net!news.solani.org!.POSTED!not-for-mail 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 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Wed, 29 May 2024 07:08:22 -0000 (UTC) Injection-Info: solani.org; logging-data="966195"; mail-complaints-to="abuse@news.solani.org" User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 SeaMonkey/2.53.18.2 Cancel-Lock: sha1:g3YSqPVSM4nWDndHkurbWHvxi9Q= In-Reply-To: X-User-ID: eJwNysEBwCAIA8CVRAjBcRBh/xHaex/UxYvmcMNgLG4vK2NdnHHtfig5kp4M/mtzjaJVY5GaWcXXPeidkXk+UigV1A== Bytes: 3121 Lines: 60 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/