Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!brutus.cs.uiuc.edu!ux1.cso.uiuc.edu!tank!rtp1
From: rtp1@tank.uchicago.edu (raymond thomas pierrehumbert)
Newsgroups: comp.sys.apollo
Subject: Re: Don't Let this Happen to You
Message-ID: <6740@tank.uchicago.edu>
Date: 15 Dec 89 03:29:22 GMT
References: <8912141352.AA03361@umix.cc.umich.edu>
Organization: University of Chicago
Lines: 11

for Macs and Suns) is only for very special circumstances (multiply and
accumulate).  The typical speed is more like 2-3 megaflops.  I thought
about buying a Mercury board, but decided against it for more or less
the reasons that eventually caught up with you.  By way of comparison,
a processor for the DN10000 does 28 megaflops on dotproduct (single
precision), 6-7 megaflops on a broad range of code, and costs about
$13000 to universities.  The extra cost is worth the support.  The
real killer in the cost of adding a processor is the memory cost, as
you really ought to add about 16MB for each new processor.  This 
doubles the cost.  Anybody know of any cheap third-party memory for
the DN10000?