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Article #455Re: Massively Parallel LINPACK on the Intel Touchstone Delta machine
From: Steven Lam
Date: Thu, 20 Jun 1991 12:08
Date: Thu, 20 Jun 1991 12:08
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1466 bytes
Dear Sir, I understand that you've been using both Cray and CM-2. Can you give me some figures, such as the price and the performance of each machine? I personnally believe that fine-grain computers are much cheaper to build and hence less dependent on integration technology. Does the compiler for CM-2 allow you to grap several number of processing cells for your applications and other users may do the same? Have you ever experience the communication bottleneck when working with Cray? There are a few papers on CM-2 machine recently, they found that the connection machine is not very good in computing singular value decompostion or similar problem, as the cell utilization may fall to 20-40%, what is your comment? Stephen Lam +++++++++++++++++++++++ School of Electronic Engineering University of Birmingham Birmingham B15 2TT e-mail: spsl@uk.ac.bham.cs +++++++++++++++++++++ Thank you.
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!warwick!nott-cs!bhamcs!spslReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!warwick!nott-cs!bhamcs!spsl From: spsl@cs.bham.ac.uk (Steven Lam) Newsgroups: comp.sys.super Subject: Re: Massively Parallel LINPACK on the Intel Touchstone Delta machine Message-ID: <1991Jun20.120808.27762@cs.bham.ac.uk> Date: 20 Jun 91 12:08:08 GMT References: <1991Jun10.144354.695@chpc.utexas.edu> <1991Jun10.235501.7039@ariel.unm.edu> <11806@mirsa.inria.fr> Sender: news@cs.bham.ac.uk Organization: Birmingham University Computer Science Lines: 24