Xref: utzoo comp.sys.ncr:509 comp.arch:18348 Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!yale!cmcl2!cmcl2.nyu.edu!gottlieb From: gottlieb@allan.ultra.nyu.edu (Allan Gottlieb) Newsgroups: comp.sys.ncr,comp.arch Subject: Re: Terradata architecures Message-ID: Date: 29 Sep 90 19:35:15 GMT References: <211@bilpin.UUCP> <1990Sep28.020717.22610@dhw68k.cts.com> Sender: notes@cmcl2.NYU.EDU Followup-To: comp.sys.ncr Organization: New York University, Ultracomputer project Lines: 20 In-reply-to: stein@dhw68k.cts.com's message of 28 Sep 90 02:07:17 GMT In article <1990Sep28.020717.22610@dhw68k.cts.com> stein@dhw68k.cts.com (Rick 'Transputer' Stein) writes: Summary:Any shared-memory ghettoblaster is dead meat! [question about teradata omitted] I'd be pretty amazed to see a massively parallel computation system built up with busses. That contention problem is a giant killer, and that's why message-passing scalar systems are kicking butt, even if they are a bit tougher to built software. Shared memory systems are technological dinosaurs. Not all shared memory systems are (single) bus-based. Richer interconnection networks are used--just as with message passing machines. -- Allan Gottlieb gottlieb@nyu.edu