Re: How long does Sun have to live? (OT RANT)

From: Alessandro Selli (adoro.lo.spam_at_libero.it)
Date: 09/22/03 

Date: Mon, 22 Sep 2003 11:44:24 +0200

Il giorno Sun, 21 Sep 2003, Thomas Dehn cosė ha scritto:

|
|"Philip J. Koenig" <See_email_@ddress_below.This_one_is.invalid> wrote:
|> > > >The fastest Linux-based supercomputer ranks #3 on the top 500
|> > > >supercomputer list. The fastest Solaris-based supercomputer ranks
|> > > >#211 running on your precious "SF 15K". (http://www.top500.org/)
|> > >
|> > > That isnt really a "supercomputer", it's a "linux cluster".
|> > > You cannot do everything you can do on a sunfire 15k, with a cluster of
|> > > smaller boxes.
|[...]
|> IIRC, all the "top ranking supercomputers" for some years now have
|> been giant parallel beasts. IBM's "ASCII White" and "ASCII Blue"
|> AFAIK are basically clusters of POWER-chip boxes.
|
|The Earth Simulator is just a huge single box.

  Now, this is not my field of competence, but:
http://www.es.jamstec.go.jp/esc/eng/Hardware/system.html

System Configuration
The ES is a highly parallel vector supercomputer system of the
distributed-memory type, and consisted of 640 processor nodes (PNs) connected
by 640x640 single-stage crossbar switches. Each PN is a system with a shared
memory, consisting of 8 vector-type arithmetic processors (APs), a 16-GB main
memory system (MS), a remote access control unit (RCU), and an I/O processor.
The peak performance of each AP is 8Gflops. The ES as a whole thus consists of
5120 APs with 10 TB of main memory and the theoretical performance of 40Tflops

  The pictures do seem to indicate a cluster system with an "Interconnection
Network" as its core.

  Sandro 

-- 
Bellum se ipsum alet
       La guerra nutre se stessa
Livio, Ab urbe condita, XXXIV,9

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