Newsgroups: comp.parallel
From: dm@bbn.com (David Mankins)
Subject: Re: KSR reliability (was Re: SMP vs. MPP)
Organization: Bolt, Beranek, and Newman
Date: Fri, 6 Jan 1995 15:56:23 GMT
Message-ID: <dm-0601950219560001@128.89.19.84>

In article <3eb530$6bk@convex.convex.com>, strauss@convex.convex.com
(Henry Strauss) wrote:

> 
> Yes, there was a reliability problem -- in fact more than one --
> but I don't see this as anything surprising.  The KSR machines were
> still relatively new products, and AllCache the first hardware
> implementation of virtually shared memory.

Surely the BBN GP1000 (a later version of the Butterfly) had
virtually shared memory --- they ran Mach.  On the other hand, a lot of
BBN Butterfly hardware engineers moved to KSR after BBN announced
it was getting out of the parallel processor business.

- dave mankins (dm@bbn.com, dm@world.std.com)


