ARM-based supercomputers

By: Michael S (already5chosen.delete@this.yahoo.com), January 24, 2017 9:05 am
Room: Moderated Discussions
tarlinian (tarlinian.delete@this.gmail.com) on January 24, 2017 8:58 am wrote:
> Niels Jørgen Kruse (nj_kruse.delete@this.me.com) on January 23, 2017 10:41 pm wrote:
> > Aaron Spink (aaronspink.delete@this.notearthlink.net) on January 23, 2017 7:01 pm wrote:
> > > Niels Jørgen Kruse (nj_kruse.delete@this.me.com) on January 22, 2017 12:16 pm wrote:
> > > > In weather prediction, you do ensemble runs anyway.
> > > >
> > > >
> > >
> > > Because it is a statistical model, but now you have to do backup runs for each of your
> > > ensemble runs because you don't know how out of whack they got from memory errors.
> > > In any reasonable sized super, you are going to have daily/hourly memory errors.
> >
> > It would be more rational to increase the ensemble. It doesn't
> > matter why any particular run deviates from the majority.
>
> That really doesn't make physical sense. The "noise" generated by random bit flips likely comes from a completely
> different distribution than the noise that the "noise" that results from initial condition perturbations.

As long as you apply statistical filtering (median or similar) to the results, it does not matter.
Only one condition is important: percentage of the runs that are affected by memory errors shell be low.
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TopicPosted ByDate
Cray to Develop ARM-based Isambard Supercomputer for UK Met Officegallier22017/01/20 07:48 AM
  Cray to Develop ARM-based Isambard Supercomputer for UK Met Officegallier22017/01/20 07:48 AM
    Ignore second post (NT)gallier22017/01/20 07:49 AM
  ARM-based supercomputersDavid Kanter2017/01/20 02:55 PM
    ARM-based supercomputersMaynard Handley2017/01/20 08:55 PM
      ARM-based supercomputers lolRobert David Graham2017/01/21 05:34 PM
        ARM-based supercomputers lolnone2017/01/21 06:44 PM
          ARM-based supercomputers lolMaynard Handley2017/01/21 07:36 PM
            ARM-based supercomputers lolMichael S2017/01/22 02:07 AM
            What did you learn?Innocent Bystander2017/01/22 08:26 AM
          ARM-based supercomputers lolanon2017/01/22 02:24 AM
            ARM-based supercomputers lolGabriele Svelto2017/01/23 12:53 AM
              ARM-based supercomputers lolanon2017/01/23 06:40 AM
            ARM-based supercomputers loljuanrga2017/01/29 05:01 AM
              ARM-based supercomputers lolanon2017/01/29 09:35 AM
        ARM-based supercomputers lolBrendan2017/01/21 07:36 PM
         Dumb belief? ROFL (NT)juanrga2017/01/22 02:59 AM
          Dumb belief? ROFLwumpus2017/01/22 11:31 AM
            Dumb belief? ROFLjuanrga2017/01/29 05:13 AM
        ARM-based supercomputers lolDavid Kanter2017/01/22 08:20 AM
    ARM-based supercomputersRichardC2017/01/22 07:54 AM
      ARM-based supercomputersAaron Spink2017/01/22 12:03 PM
        ARM-based supercomputersNiels Jørgen Kruse2017/01/22 12:16 PM
          ARM-based supercomputersAaron Spink2017/01/23 07:01 PM
            ARM-based supercomputersNiels Jørgen Kruse2017/01/23 10:41 PM
              ARM-based supercomputerstarlinian2017/01/24 08:58 AM
                ARM-based supercomputersMichael S2017/01/24 09:05 AM
                  ARM-based supercomputersAaron Spink2017/01/24 10:38 AM
        ARM-based supercomputersdmcq2017/01/22 01:03 PM
          A73 does not have L1 ECCDavid Kanter2017/01/22 09:50 PM
            A73 does not have L1 ECCdmcq2017/01/23 03:32 PM
              A73 does not have L1 ECCMichael S2017/01/23 03:50 PM
              A73 does not have L1 ECCdmcq2017/01/24 08:15 AM
                A73 does not have L1 ECCMichael S2017/01/24 08:47 AM
          ARM SOCs with ECC DRAMMichael S2017/01/23 03:17 AM
          ARM-based supercomputersAaron Spink2017/01/23 07:02 PM
            X-Gene 3 supports 1TB of memoryvvid2017/01/24 01:55 AM
              X-Gene 3 supports 1TB of memoryWilco2017/01/24 02:13 AM
                You seem to be confusing "SoC" with "CPU core" (NT)Anon2017/01/24 03:12 AM
                X-Gene 3 supports 1TB of memoryMichael S2017/01/24 05:26 AM
                  X-Gene 3 supports 1TB of memorydmcq2017/01/24 08:28 AM
                X-Gene 3 supports 1TB of memoryAaron Spink2017/01/24 06:46 AM
                  X-Gene 3 supports 1TB of memoryWilco2017/01/24 03:10 PM
                    X-Gene 3 supports 1TB of memoryDavid Kanter2017/01/24 07:31 PM
                X-Gene 3 supports 1TB of memorySimon Farnsworth2017/01/26 02:23 AM
              X-Gene 3 supports 1TB of memoryAaron Spink2017/01/24 06:44 AM
                X-Gene 3 supports 1TB of memoryAnon2017/01/24 01:54 PM
                  X-Gene 3 supports 1TB of memoryWilco2017/01/24 03:07 PM
                    X-Gene 3 supports 1TB of memoryDavid Kanter2017/01/24 07:34 PM
                      X-Gene 3 supports 1TB of memorynone2017/01/24 10:48 PM
                        X-Gene 3 supports 1TB of memoryMichael S2017/01/25 01:32 AM
                        X-Gene 3 supports 1TB of memoryDavid Hess2017/01/25 09:47 PM
                          X-Gene 3 supports 1TB of memoryMichael S2017/01/26 12:55 AM
                            Really that different?Daniel B2017/01/26 03:37 AM
                              Really that different?none2017/01/26 05:39 AM
                                Really that different?itsmydamnation2017/01/26 03:55 PM
                                  Really that different?none2017/01/26 11:14 PM
                      X-Gene 3 supports 1TB of memoryWilco2017/01/25 03:22 AM
                        Sharing between servers and phonesDavid Kanter2017/01/25 07:15 AM
                          Sharing between servers and phonesWilco2017/01/25 04:41 PM
                            Sharing between servers and phonesDavid Kanter2017/01/25 06:10 PM
                              Sharing between servers and phonesGabriele Svelto2017/01/26 03:15 AM
                                Sharing between servers and phonesDavid Kanter2017/01/26 07:33 AM
                                  Sharing between servers and phoneswumpus2017/01/26 03:25 PM
                                    Sharing between servers and phonesDavid Kanter2017/01/27 06:46 AM
                                      Any idea why Intel doesn't ship server chips with eDRAM?Mark Roulo2017/01/27 09:02 AM
                                        Any idea why Intel doesn't ship server chips with eDRAM?Per Hesselgren2017/01/28 06:49 AM
                                          Any idea why Intel doesn't ship server chips with eDRAM?Simon Farnsworth2017/01/28 07:06 AM
                                          Any idea why Intel doesn't ship server chips with eDRAM?Michael S2017/01/29 02:43 AM
                                            off die eDRAM?wumpus2017/01/29 06:57 AM
                                              off die eDRAM?anon2017/01/29 09:46 AM
                                      Sharing between servers and phonesrwessel2017/01/27 10:36 PM
                                      Sharing between servers and phonesLinus Torvalds2017/01/28 11:49 AM
                                        Sharing between servers and phonesrwessel2017/01/29 08:56 PM
                                          Sharing between servers and phonesLinus Torvalds2017/01/30 10:01 AM
                                            Sharing between servers and phonesrwessel2017/01/31 12:29 AM
                                              Sharing between servers and phonesIreland2017/01/31 07:55 AM
                                                Please keep your posts on topicDavid Kanter2017/01/31 11:32 AM
                                                  Technology that can survive in harsh conditionsIreland2017/01/31 12:51 PM
                                                    Stay on topic, you have been warnedDavid Kanter2017/01/31 06:56 PM
                                                On topic summary and my thoughts on it. Jouni Osmala2017/01/31 01:10 PM
                                                  On topic summary and my thoughts on it. Ireland2017/01/31 01:27 PM
                                              Sharing between servers and phonesLinus Torvalds2017/01/31 01:01 PM
                                                Sharing between servers and phonesLinus Torvalds2017/01/31 01:49 PM
                                                  Sharing between servers and phonesDoug S2017/01/31 02:12 PM
                                                Sharing between servers and phonesrwessel2017/01/31 05:54 PM
                                                  Sharing between servers and phonesLinus Torvalds2017/02/01 09:17 AM
                                                    Sharing between servers and phonesrwessel2017/02/02 03:40 PM
                                                  Sharing between servers and phonesjoncmu2017/02/01 01:36 PM
                                                    Sharing between servers and phonesChristian Borntraeger2017/02/02 03:46 AM
            ARM-based supercomputersRichardC2017/01/24 05:50 AM
              ARM-based supercomputersAaron Spink2017/01/24 07:20 AM
                ARM-based supercomputersdmcq2017/01/24 08:44 AM
                  ARM-based supercomputersnone2017/01/24 09:10 AM
                  ARM-based supercomputersjuanrga2017/01/29 05:33 AM
                    ARM-based supercomputershobel2017/01/30 02:35 AM
                ARM-based supercomputersRichardC2017/01/24 09:34 AM
                  ARM-based supercomputersdmcq2017/01/24 10:10 AM
                  ARM-based supercomputersAaron Spink2017/01/24 11:01 AM
                    ARM-based supercomputersRichardC2017/01/24 04:06 PM
                      ARM-based supercomputersIreland2017/01/24 05:16 PM
                      ARM-based supercomputersAaron Spink2017/01/24 07:43 PM
                    video renderingRichardC2017/01/24 05:08 PM
                      video renderingIreland2017/01/24 05:26 PM
                      video renderingAaron Spink2017/01/24 07:54 PM
                        video renderingRichardC2017/01/25 04:26 AM
                          display bandwidthRichardC2017/01/25 05:30 AM
                          video renderingIreland2017/01/25 08:11 AM
                            You can keep a coal furnace fed all the time. (NT)anon2017/01/25 03:27 PM
                              You can keep a coal furnace fed all the time.Ireland2017/01/25 03:36 PM
                                You can keep a coal furnace fed all the time.anon2017/01/27 03:29 AM
                                  You can keep a coal furnace fed all the time.Michael S2017/01/27 07:22 AM
                                    You can keep a coal furnace fed all the time.Ireland2017/01/27 10:59 AM
                                    You can keep a coal furnace fed all the time.anon2017/01/27 03:09 PM
                                      Information and Super Materials Ireland2017/01/28 11:13 AM
                            video renderingRichardC2017/01/26 11:39 AM
                              video renderingIreland2017/01/26 12:49 PM
                                video renderingIreland2017/01/26 12:58 PM
                                video renderingRichardC2017/01/26 03:24 PM
                                  video renderingIreland2017/01/26 05:09 PM
                          video renderingGabriele Svelto2017/01/25 08:16 AM
                            video renderingIreland2017/01/25 08:33 AM
                              The challenge at Pixar Ireland2017/01/25 08:40 AM
                                Pixar story & technologyRichard Cownie2017/01/25 11:36 AM
                                  Pixar story & technologyIreland2017/01/25 11:58 AM
                          video renderingAaron Spink2017/01/25 02:49 PM
                            video renderingIreland2017/01/25 03:26 PM
                            cloud network infrastructureRichardC2017/01/26 10:47 AM
                              cloud network infrastructureAaron Spink2017/01/26 07:37 PM
                ARM-based supercomputersGabriele Svelto2017/01/24 12:40 PM
                  ARM-based supercomputersAaron Spink2017/01/24 08:00 PM
        ARM-based supercomputersRichardC2017/01/22 09:45 PM
          ARM-based supercomputersGabriele Svelto2017/01/23 01:03 AM
            ARM-based supercomputersRichardC2017/01/23 06:57 AM
      ARM-based supercomputersGabriele Svelto2017/01/23 03:23 AM
    Mont blanc project and ARM HPC in generaljuanrga2017/01/29 04:42 AM
      Juan, why do you have to be such an arrogant twat to the person who provides this forum? (NT)Annoyed2017/01/30 02:32 AM
      Still idioticDavid Kanter2017/01/30 07:49 AM
        Still idioticMr. Camel2017/01/30 08:16 PM
        Still idioticjuanrga2017/02/02 08:11 AM
      Mont blanc project and ARM HPC in generalIreland2017/01/31 04:53 PM
        Four Things to Consider Ireland2017/01/31 05:11 PM
          Four Things to Consider tarlinian2017/01/31 06:38 PM
            Four Things to Consider Ireland2017/01/31 06:58 PM
              no evidence that it goes on a shipRichardC2017/02/01 06:05 AM
                no evidence that it goes on a shipIreland2017/02/02 01:57 PM
                  no evidence that it goes on a shipRichardC2017/02/03 06:04 AM
                    no evidence that it goes on a shipIreland2017/02/03 08:02 AM
              A better place to site a supercomputerAnon2017/02/01 06:57 AM
                A better place to site a supercomputerIreland2017/02/01 06:37 PM
                  A better Ireland..Anon2017/02/01 07:52 PM
                    A better Ireland..slacker2017/02/01 10:32 PM
                    A better Ireland..Ireland2017/02/02 04:06 AM
                    He is manic (NT)anonymo2017/02/02 12:21 PM
                      or a botanon2017/02/02 02:17 PM
                        or a botanonymou52017/02/02 03:46 PM
                        or a botnone2017/02/02 10:45 PM
                          or a botanon2017/02/03 09:30 AM
                        Better bot example: amanfrommars1Doug S2017/02/03 10:44 AM
            Make allowances, the man never sleeps..Anon2017/01/31 08:22 PM
        Mont blanc project and ARM HPC in generaletudiant2017/02/02 08:39 AM
          Mont blanc project and ARM HPC in generalIreland2017/02/02 11:12 AM
            Connection between two different modelsIreland2017/02/02 11:18 AM
              Connection between two different modelsetudiant2017/02/04 02:40 PM
                Connection between two different modelsRichardC2017/02/06 08:36 AM
                  Connection between two different modelsdmcq2017/02/06 10:07 AM
                  Connection between two different modelsIreland2017/02/06 11:17 AM
                    probably not the right forum ...RichardC2017/02/06 12:31 PM
                      probably not the right forum ...Ireland2017/02/06 01:53 PM
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