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From: johnl@ima.ISC.COM (John R. Levine)
Newsgroups: comp.arch
Subject: Re: Multiflow
Message-ID: <775@ima.ISC.COM>
Date: Tue, 8-Dec-87 16:53:03 EST
Article-I.D.: ima.775
Posted: Tue Dec  8 16:53:03 1987
Date-Received: Sun, 13-Dec-87 14:29:02 EST
References: <11972@orchid.waterloo.edu>
Reply-To: johnl@ima.UUCP (John R. Levine)
Organization: Not enough to make any difference
Lines: 35

In article <11972@orchid.waterloo.edu> gamiddleton@orchid.waterloo.edu (Guy Middleton) writes:
>I've been reading about Multiflow Trace machine.  Does anybody have any
>benchark results for it?  It certainly seems like an odd way to build a
>machine.

Here are some numbers from a flyer that my friends at Multiflow sent me a
few months ago:

Compiled Linpack full precision MFLOPS		6.0

Whetstone double precision KWHETs		12605

Livermore Loops (24 kernels, double prec MFLOPS) 2.3

Dhrystone					14195

Their info packet has lots more numbers in it but I'll let them toot their
own horn if they want to.  For comparison, a VAX 8700 is about 1 Linpack
MFLOP and 4000 KWHETs.

This machine is implemented in CMOS VLSI and Schottky TTL, and useful
configurations start at about $300K.  It has 256 bit instruction words
that execute seven operations per instruction.  They have recently come
out with the Trace 14/200 and 28/200 that have 512 and 1024 bit instructions
that execute 14 and 28 operations per instruction, which I'd expect to be
roughly twice and four times as fast, less (compile time) scheduling
overhead.

No connection except that all of the people who started Multiflow are
friends of mine.
-- 
John R. Levine, IECC, PO Box 349, Cambridge MA 02238-0349, +1 617 492 3869
{ ihnp4 | decvax | cbosgd | harvard | yale }!ima!johnl, Levine@YALE.something
The Iran-Contra affair:  None of this would have happened if Ronald Reagan
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