number of sockets is wrong metric (was: New article: 8 socket commodity servers)

Article: 8-Socket Commodity Servers: Flourish or Perish?
By: longtimelurker (rwt.delete@this.nospam.maibaums.net), March 14, 2010 5:13 am
Room: Moderated Discussions
Vincent Diepeveen (diep@xs4all.nl) on 3/9/10 wrote:

>
>I'm not an AMD fanboy, but really this goes too far.
>
>You realize it's start 2010 and you write about a cheap solution that's there for
>many years now total unrivalled i price by intel: "in theory".
>

I have to agree that the article seems very intel-biased. 8S-Opteron was a viable platform if you really needed the number of memory channels and most importantly the total memory size. They didn't scale even close to linearly compared with 4S, but were still significantly faster. If you just care about number of cores and can parallelize well, you would build a cluster of 1S or 2S machines anyway.

Which brings me to the actual point I'm trying to make: Isn't the number of sockets an antiquated metric? What you are really interested in with those big boxes is the total number and throughput of the memory channels and that they're reasonably low latency from any core.
IBM showed off Nehalem systems at Cebit that used external QPI links to attach extra enclosures just full of memory, and with Magny-Cours AMD just stuffed significantly more bandwidth and lower latency into 4S than they previously had at 8S. Not sure if there'll be an 8S Magny-Cours, but it'll likely suffer from similar problems as the previous Opteron 8000. Maybe someone will build a 6S, the Chips are called Opteron 6000 after all.

-Felix
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TopicPosted ByDate
New article: 8 socket commodity serversDavid Kanter2010/03/09 10:27 AM
  New article: 8 socket commodity serversVincent Diepeveen2010/03/09 01:46 PM
    number of sockets is wrong metric (was: New article: 8 socket commodity servers)longtimelurker2010/03/14 05:13 AM
      number of sockets is wrong metric (was: New article: 8 socket commodity servers)EduardoS2010/03/14 05:34 AM
      number of sockets is wrong metric (was: New article: 8 socket commodity servers)Wes Felter2010/03/14 10:33 AM
        Magny-CoursMax2010/03/14 04:56 PM
          Magny-Coursanonymous2010/03/14 06:33 PM
            Magny-Courslongtimelurker2010/03/15 02:54 AM
      number of sockets is wrong metric (was: New article: 8 socket commodity servers)Vincent Diepeveen2010/03/14 11:31 AM
        number of sockets is wrong metric (was: New article: 8 socket commodity servers)longtimelurker2010/03/14 01:37 PM
          number of sockets is wrong metric (was: New article: 8 socket commodity servers)Vincent Diepeveen2010/03/15 11:36 AM
      number of sockets is wrong metric (was: New article: 8 socket commodity servers)David Kanter2010/03/14 11:56 AM
        Bad mathDavid Kanter2010/04/01 01:24 AM
      number of sockets is wrong metric (was: New article: 8 socket commodity servers)slacker2010/03/14 02:51 PM
        number of sockets is wrong metric (was: New article: 8 socket commodity servers)Michael S2010/03/15 05:05 AM
          number of sockets is wrong metric (was: New article: 8 socket commodity servers)slacker2010/03/15 01:02 PM
            Memory interfacesDavid Kanter2010/03/15 01:17 PM
              Memory interfacesslacker2010/03/15 09:08 PM
                Patents on tiny components vs. large, complex thingsmpx2010/03/15 11:41 PM
                  Patents on tiny components vs. large, complex thingsRichard Cownie2010/03/16 05:58 AM
                    Patents on tiny components vs. large, complex thingsMS2010/03/17 05:42 PM
                      Patents on tiny components vs. large, complex thingsa reader2010/03/18 08:45 PM
          Serial Port Memory TechnologyDavid Hess2010/03/21 03:32 AM
  New article: 8 socket commodity serversMichael S2010/03/09 03:13 PM
    New article: 8 socket commodity serverstheluketaylor2010/03/09 05:32 PM
    New article: 8 socket commodity serversJesper Frimann2010/03/09 10:35 PM
    New article: 8 socket commodity serversDavid Kanter2010/03/10 12:38 AM
      New article: 8 socket commodity serversTim2010/03/16 08:44 AM
  New article: 8 socket commodity serversanon2010/03/09 06:59 PM
    New article: 8 socket commodity serversDavid Kanter2010/03/09 11:06 PM
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