KNL obsolete, AVX512 - a huge mistake

By: juanrga (nospam.delete@this.juanrga.com), August 26, 2015 5:49 am
Room: Moderated Discussions
Anon (nope.delete@this.nope.com) on August 26, 2015 1:23 am wrote:
> juanrga (nospam.delete@this.juanrga.com) on August 25, 2015 6:01 pm wrote:
> > Nvidia talk at ISC2015 was much more interesting. They compared
> > two KNL CPUs against Power+CUDA using Amdahl's
> > law. At 98% parallel the KNL was competitive. At 90% parallel
> > work the KNL system was about two times slower than
> > the Power+CUDA system: ~2 min vs 4.5 min. At 70% parallel work, the KNL system was more than 3x slower.
> >
> > Wider vector units and less cores had worked better.
>
> KNL will still be available as a PCIe card- SKX & KNL combo systems
> are entirely feasible, for workloads that fit that paradigm.

The card version is for legacy customers. New systems will favor the CPU version. Nvidia was comparing Summit and Aurora configurations and how Aurora will require one order of magnitude more nodes to achieve similar performance.
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TopicPosted ByDate
KNL obsolete, AVX512 - a huge mistakeMichael S2015/08/25 02:58 PM
  KNL obsolete, AVX512 - a huge mistakeMark Roulo2015/08/25 04:10 PM
    KNL obsolete, AVX512 - a huge mistakeMichael S2015/08/25 04:23 PM
  KNL obsolete, AVX512 - a huge mistakejuanrga2015/08/25 06:01 PM
    KNL obsolete, AVX512 - a huge mistakeAnon2015/08/26 01:23 AM
      KNL obsolete, AVX512 - a huge mistakejuanrga2015/08/26 05:49 AM
        KNL obsolete, AVX512 - a huge mistakeAlberto2015/08/26 06:26 AM
          KNL obsolete, AVX512 - a huge mistakejuanrga2015/08/26 11:23 AM
            KNL obsolete, AVX512 - a huge mistakeAlberto2015/08/26 01:13 PM
    KNL obsolete, AVX512 - a huge mistakeAaron Spink2015/08/26 07:25 AM
      KNL obsolete, AVX512 - a huge mistakejuanrga2015/08/26 12:11 PM
  Core M vs Atom- well duhAnon2015/08/26 01:19 AM
    Core M vs Atom- well duhMichael S2015/08/26 02:59 AM
      Core M vs Atom- well duhAnon2015/08/26 03:37 AM
  KNL obsolete, AVX512 - a huge mistakebakaneko2015/08/26 03:44 AM
    KNL obsolete, AVX512 - a huge mistakeMichael S2015/08/26 04:23 AM
      KNL obsolete, AVX512 - a huge mistakebakaneko2015/08/26 05:01 AM
        KNL obsolete, AVX512 - a huge mistakeMichael S2015/08/26 05:13 AM
          KNL obsolete, AVX512 - a huge mistakebakaneko2015/08/26 06:00 AM
      KNL obsolete, AVX512 - a huge mistakeNoSpammer2015/08/26 06:33 AM
        KNL obsolete, AVX512 - a huge mistakeMichael S2015/08/26 06:43 AM
  KNL obsolete, AVX512 - a huge mistakempx2015/08/31 03:15 AM
  KNL obsolete, AVX512 - a huge mistakePassing Through2018/08/03 11:02 AM
  KNL obsolete, AVX512 - a huge mistakecoppice2018/08/04 04:34 AM
    KNL obsolete, AVX512 - a huge mistakePassing Through2018/08/04 06:58 AM
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