Threadripper 32 core review

By: Alberto (git.delete@this.git.it), August 13, 2018 11:57 pm
Room: Moderated Discussions
Maynard Handley (name99.delete@this.name99.org) on August 13, 2018 1:27 pm wrote:
> Alberto (git.delete@this.git.it) on August 13, 2018 11:11 am wrote:
> > Per Hesselgren (perhesselgren.delete@this.yahoo.se) on August 13, 2018 8:50 am wrote:
> > > Threadripper on Anandtech
> >
> > Great power analysis kudos to Anandtech.
> >
> > This article gives an idea of the struggles of a many core SKU. Loved the prediction that the
> > new and relatively weak upcoming fine nodes will are not able to compensate enough the rising
> > amount of complexity and the growing power consumption in intercore and memory access trafic.
> >
> > Looks like the max core number per socket definitively has a limit and the multisocket
> > solution has a bright future even if someone trust the contrary.
> >
> > My bet AMD 64 cores Epyc will be suboptimal, in fact for now they try the 48 number only to stay safe.
>
> Your argument makes no sense. Why on earth would the power problem be reduced when crossing
> from one socket to another, rather than from one die to another across an interposer?
> As long as we are demanding the same things (same level of performance, same degree of snooping)
> from cores in a single socket and cores across multiple sockets, the socket communication
> is strictly more expensive than the on-die or through-interposer communication.
>

Likely because there are known limits at the amount of heat that a semi-passive cooling solution can dissipate from a single socket. Dividing the heat on two or more sockets the OEMs have an more easy life to think about an efficient semi-passive cooling via copper heatsink under a moderate air flux inside a tiny server box.

You can follow IBM with some exotic solutions but this is not absolutely the case. Over 200W/socket the heat dissipation become very serious to manage in actual popular server boxes. Finer the process utilized the thing become even worse cause the stellar power density on die, and Fins do not help at all.
My bet the shrink game will be stopped mainly by power density rather than by yields issues.
< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
Threadripper 32 core reviewPer Hesselgren2018/08/13 07:50 AM
  Threadripper 32 core reviewwumpus2018/08/13 08:32 AM
    Threadripper 32 core reviewLinus Torvalds2018/08/13 01:12 PM
      Threadripper 32 core reviewpgerassi2018/08/13 02:16 PM
        Threadripper 32 core reviewLinus Torvalds2018/08/13 02:48 PM
          Less Power Hungry Part?Passing Through2018/08/13 03:19 PM
          Threadripper 32 core reviewGroo2018/08/13 03:50 PM
            Threadripper 32 core reviewPassing Through2018/08/14 11:45 AM
          Threadripper 32 core reviewpgerassi2018/08/13 05:41 PM
          Threadripper 32 core reviewjuanrga2018/08/14 03:44 AM
            Threadripper 32 core reviewLinus Torvalds2018/08/14 08:37 AM
              Threadripper 32 core reviewjuanrga2018/08/14 10:18 AM
                Threadripper 32 core reviewjuanrga2018/08/16 01:16 AM
          Threadripper 32 core reviewJukka Larja2018/08/14 07:41 AM
          [side topic] personal supercomputer (Threadripper 32 core review)hobold2018/08/16 03:47 AM
  Threadripper 32 core reviewAlberto2018/08/13 10:11 AM
    Threadripper 32 core reviewMaynard Handley2018/08/13 12:27 PM
      Threadripper 32 core reviewDoug S2018/08/13 01:01 PM
        Threadripper 32 core reviewAlberto2018/08/14 01:50 AM
          Threadripper 32 core reviewnone2018/08/14 04:08 AM
          On revenues and right choicesAM2018/08/14 07:33 AM
      Threadripper 32 core reviewAlberto2018/08/13 11:57 PM
        Threadripper 32 core reviewJeff S.2018/08/14 06:00 AM
        Shrinks and power densityAM2018/08/14 07:49 AM
          Shrinks and power densityDavid Hess2018/08/18 12:30 PM
            Shrinks and power densityAM2018/08/19 07:12 AM
              Shrinks and power densityanonymou52018/08/19 08:13 PM
                Shrinks and power densityJohn H2018/08/20 04:16 PM
        Threadripper 32 core reviewDavid Hess2018/08/18 12:43 PM
  Threadripper 32 core reviewanon2018/08/13 01:48 PM
    Threadripper 32 core reviewanon2018/08/13 02:25 PM
      *while (NT)anon2018/08/13 02:26 PM
      Threadripper 32 core reviewpgerassi2018/08/13 06:34 PM
        Threadripper 32 core reviewanon2018/08/14 04:40 AM
      Threadripper 32 core reviewGabriele Svelto2018/08/14 03:22 AM
        Threadripper 32 core reviewanon2018/08/14 04:44 AM
  Flock of Chickens.Jouni Osmala2018/08/13 07:04 PM
    Flock of Chickens.none2018/08/14 12:43 AM
      AnandTech review clarityJeff S.2018/08/14 04:06 AM
        AnandTech review claritynone2018/08/14 04:15 AM
          AnandTech review clarityJeff S.2018/08/14 04:36 AM
            AnandTech review claritynone2018/08/14 04:44 AM
            AnandTech review claritynone2018/08/14 04:53 AM
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