Article View: comp.lang.prolog
Article #1177Re: Arrays in Prolog
From: Mats Carlsson
Date: Tue, 11 Sep 1990 15:02
Date: Tue, 11 Sep 1990 15:02
14 lines
1418 bytes
1418 bytes
In article <1032@ecrc.de> micha@ecrc.de (Micha Meier) writes: Value trailing is necessary to implement efficiently coroutining systems (yes, I know that it is possible without, but not fast enough). It was already present in MU-Prolog. This is an interesting claim. Could you provide some arguments for why it is that coroutining systems become so much slower without value trailing? Value trailing seems to have a rather high price: the trail becomes twice as large, and there is extra work for each (normal) variable to reset. -- Mats Carlsson SICS, PO Box 1263, S-164 28 KISTA, Sweden Internet: matsc@sics.se Tel: +46 8 7521543 Ttx: 812 61 54 SICS S Fax: +46 8 7517230
Technical Details
Message-ID:
<1990Sep11.150245.26833@sics.se>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!zaphod.mps.ohio-state.edu!rpi!uupsi!sunic!sics.se!sics.se!matscReferences:
<90239.175243SCHMIED@DB0TUI11.BITNET> <3899@bingvaxu.cc.binghamton.edu> <1990Aug28.065353.13951@sics.se> <3904@bingvaxu.cc.binghamton.edu> <1990Aug29.095308.18522@sics.se> <3907@bingvaxu.cc.binghamton.edu> <1032@ecrc.de>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!zaphod.mps.ohio-state.edu!rpi!uupsi!sunic!sics.se!sics.se!matsc From: matsc@sics.se (Mats Carlsson) Newsgroups: comp.lang.prolog Subject: Re: Arrays in Prolog Message-ID: <1990Sep11.150245.26833@sics.se> Date: 11 Sep 90 15:02:45 GMT References: <90239.175243SCHMIED@DB0TUI11.BITNET> <3899@bingvaxu.cc.binghamton.edu> <1990Aug28.065353.13951@sics.se> <3904@bingvaxu.cc.binghamton.edu> <1990Aug29.095308.18522@sics.se> <3907@bingvaxu.cc.binghamton.edu> <1032@ecrc.de> Sender: news@sics.se Organization: Swedish Institute of Computer Science, Kista Lines: 14 In-Reply-To: micha@ecrc.de's message of 3 Sep 90 12:03:51 GMT