Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site utah-cs.UUCP Path: utzoo!utcs!lsuc!pesnta!hplabs!utah-cs!shebs From: shebs@utah-cs.UUCP (Stanley Shebs) Newsgroups: net.micro.16k Subject: Re: Corrigenda (24-bit addresses) Message-ID: <3229@utah-cs.UUCP> Date: Mon, 4-Mar-85 13:01:05 EST Article-I.D.: utah-cs.3229 Posted: Mon Mar 4 13:01:05 1985 Date-Received: Mon, 11-Mar-85 10:57:50 EST References: <794@sjuvax.UUCP> <5025@utzoo.UUCP> Reply-To: shebs@utah-cs.UUCP (Stanley shebs) Organization: Univ of Utah CS Dept Lines: 21 Summary: In article <400@terak.UUCP> doug@terak.UUCP (Doug Pardee) writes: > >A *microprocessor* application???? Come on now, let's get serious. >I _might_ grant that for an AI application you would need that kind >of high-speed random-access memory, but no sane person would *ever* >choose a 68xxx/32xxx type processor for AI. You need a *lot* more >MIPS than that. An HP9836 (a vanilla 68000 machine) running Portable Standard Lisp outperforms a Symbolics and a 780 on some several of the AI-oriented Gabriel benchmarks (theorem-provers, game players, and other things). The key factor seems to be that the 9836s have *no* virtual memory, using about 5-10 Mb of real memory instead. Reduces garbage collection time and also thrashing due to Lisp's generally random addressing behavior... stan shebs PS I do have some ideas for AI applications to run on a Cray, but Cray PSL isn't finished yet!