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From: suzuki@russell.STANFORD.EDU (Hiroyuki Suzuki)
Newsgroups: comp.lang.prolog
Subject: Re: Looking For Prolog Machines
Message-ID: <379@russell.STANFORD.EDU>
Date: Wed, 7-Oct-87 17:29:53 EDT
Article-I.D.: russell.379
Posted: Wed Oct  7 17:29:53 1987
Date-Received: Sat, 10-Oct-87 11:02:17 EDT
References: <454@trwspf.TRW.COM>
Reply-To: suzuki@russell.UUCP (Hiroyuki Suzuki)
Organization: Center for the Study of Language and Information, Stanford U.
Lines: 24
Keywords: PSI, ESP, PROLOG
Summary: Forget about PSI/ESP

In article <454@trwspf.TRW.COM> thomsen@trwspf.UUCP (Mark Thomsen) writes:
>
>What is out there that runs Prolog fast?  I have heard a little about the ICOT
>effort on PSI, but have not technical article or description.  I have also seen
>articles in the past on extracting concurrency, Concurrent Prolog, and the
>like -- are there concurrent Prolog machines?
>

I was a user of PSI and Quintus on VAX 8700 in Japan a month ago.
We had made several bench marks and the conclusion is

	Quintus on VAX 8700 is faster than PSI if you write PROLOG

PSI is specially designed for ESP(Extended Self-contained Prolog).
So many re-writings are needed, though there is a PROLOG program for 
translating PROLOG program into ESP program.  Furthermore ESP is
still changing now.  So,
				FORGET about PSI/ESP

For detailed, technical information, contact

	ICOT(Institute for new generation COmputing Technology)
	Mita Kokusai Building 21F
	1-4-28 Mita, Minato-ku, Tokyo 108, JAPAN