Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!lll-winken!lll-tis!ames!mailrus!ukma!gatech!hubcap!lbruck
From: lbruck@eneevax.UUCP (Lewis S.Bruck)
Newsgroups: comp.parallel
Subject: Re: Hmm!
Summary: Excuse me...
Keywords: HyperCube, Parallel Connection Schemes
Message-ID: <3361@hubcap.UUCP>
Date: 27 Oct 88 15:35:11 GMT
Article-I.D.: hubcap.3361
Sender: fpst@hubcap.UUCP
Lines: 16
Approved: parallel@hubcap.clemson.edu

In article <3355@hubcap.UUCP> mschedlb@hawk.ulowell.edu (Martin Schedlbauer) writes:
>>  Is the Connection Machiene by ThinkingMachines Inc. a hypercube?
>No it isn't. A hypercube is an architecture, in which nodes are connected to
>their Gray-Code neighbours. Although, the new iPSC/2 uses a message routine

I beg to differ but the Connection Machine is a hypercube consisting of
4096 nodes with each node having 16 1-bit processors connected with a 
crossbar switch.  It uses properties of gray codes for message routing
and collision handling when passing data between processors.

For more information, read Hillis' book ``The Connection Machine'' or his
article in Scientific American (I forget which issue, but it has been
reprinted in the new spinoff publication of SA that I can't find at the
moment).

Lewis Bruck
Not officially official to enough to mention officiality