Latency and HPC Workloads

Article: Intel's Near-Threshold Voltage Computing and Applications
By: Robert Myers (rbmyersusa.delete@this.gmail.com), October 16, 2012 9:56 am
Room: Moderated Discussions
anon (anon.delete@this.anon.com) on October 16, 2012 8:17 am wrote:

>
> Interesting mindset: everybody else disagrees with me,
> therefore everybody else is wrong.
>
> Although there are well known exceptions
> where such mindset has turned an industry or scientific field upside down,
> 99.99x% of the time, it comes from a range of people from the one who is very
> good but does not grasp a particular aspect, down to the complete
> crackpot.
>
> Perhaps you are an exception. I would like to hear more about the
> problems and your ideas how to fix them, if you would spare the time. (I assume
> that "everyone stop what you're doing" is not actually your proposal!)
>

Even though you post anonymously, and even though you are personally insulting, I'm going to answer your post, as you ask most broadly. In the future, if you don't want to be thought of as a crackpot yourself, you might leave off speculation about who is and who is not a crackpot. Just as soon as the players I have mentioned, plus anyone else who plays the same game, stops advertising "the n-th fastest computer in the world" based on a single benchmark (Linpack), I'll back off on the snarling insults about the practice.

I have posted about this general issue and about the poverty of non-local bandwidth on a particular forum on Usenet at length. I have already argued at length about why gigantic computer centers with lousy interconnect are in the interest neither of science nor of the national purse. They do serve the interest of some of the players I have already mentioned. Someone has responded, and probably the person who identified himself here as forestlaughing, that these gigantic machines are actually throughput machines that are rarely employed in their actual giganticness, except to deal with many users under a single bureaucracy. To that argument, I have no answer except that my experience with those gigantic bureaucracies has never been positive.

As an introduction to my lengthy involvement in this controversy, you may want to endure the following thread on comp.arch:

https://groups.google.com/group/comp.arch/browse_thread/thread/225ae7ff9050a027/71fbb4d1cdd9651c?hl=en&q=Gordon+Bell+group:comp.arch+author:Robert+author:Myers#71fbb4d1cdd9651c

I went so far as to enlist the aid of some comp.arch participants, who have been generous with their time and their patience with the fact that I am not an actual computer architect. When IBM bailed on Blue Waters and I seemed to be the only one saying that the Emperor was plainly walking naked, I gave up.

Robert.
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TopicPosted ByDate
New article: Intel's Near-Threshold ComputingDavid Kanter09/18/12 12:26 PM
  Higher SRAM voltage and shared L1Paul A. Clayton09/18/12 02:38 PM
    Higher SRAM voltage and shared L1David Kanter09/18/12 05:20 PM
      Higher SRAM voltage and shared L1Eric09/20/12 10:44 AM
        Higher SRAM voltage and shared L1David Kanter09/20/12 12:24 PM
      Yes, that kind of asynchronousPaul A. Clayton09/20/12 02:53 PM
    Higher SRAM voltage and shared L1somebody09/19/12 09:27 AM
      So micro-turboboost is doubly impracticalPaul A. Clayton09/20/12 02:53 PM
  Big littleDoug S09/18/12 03:04 PM
    Big littleDavid Kanter09/18/12 04:05 PM
    Big littleRicardo B09/19/12 04:06 AM
  New article: Intel's Near-Threshold Computingdefderdar09/18/12 09:39 PM
    New article: Intel's Near-Threshold Computingtarlinian09/19/12 08:32 AM
      New article: Intel's Near-Threshold ComputingDavid Kanter09/19/12 10:44 AM
  New article: Intel's Near-Threshold ComputingMark Christiansen09/19/12 11:31 AM
    New article: Intel's Near-Threshold ComputingChris Brodersen09/19/12 12:54 PM
  New article: Intel's Near-Threshold ComputingEric09/20/12 10:47 AM
  Latency and HPC WorkloadsRobert Myers10/03/12 10:52 AM
    Latency and HPC Workloadsanon10/03/12 06:50 PM
      Latency and HPC WorkloadsRobert Myers10/04/12 10:24 AM
        Latency and HPC WorkloadsSHK10/08/12 05:42 AM
          Latency and HPC WorkloadsMichael S10/08/12 01:59 PM
            Latency and HPC WorkloadsSHK10/08/12 02:42 PM
              Latency and HPC WorkloadsMichael S10/08/12 05:12 PM
                Latency and HPC Workloadsforestlaughing10/15/12 08:41 AM
                  The original context was Micron RLDRAM (NT)Michael S10/15/12 08:55 AM
                    The original context was Micron RLDRAMforestlaughing10/15/12 10:21 AM
              Latency and HPC Workloads - Why not SRAM?Kevin G10/09/12 09:48 AM
                Latency and HPC Workloads - Why not SRAM?Michael S10/09/12 10:33 AM
                  Latency and HPC Workloads - Why not SRAM?SHK10/09/12 12:55 PM
                    Why not SRAM? - CapacityRohit10/09/12 09:13 PM
                  Latency and HPC Workloads - Why not SRAM?Kevin G10/09/12 03:04 PM
                    Latency and HPC Workloads - Why not SRAM?Michael S10/09/12 04:52 PM
                      Latency and HPC Workloads - Why not SRAM?Robert Myers10/10/12 10:11 AM
                        Latency and HPC Workloads - Why not SRAM?forestlaughing10/15/12 08:02 AM
                          Latency and HPC Workloads - Why not SRAM?Robert Myers10/15/12 09:04 AM
                            Latency and HPC Workloads - Why not SRAM?forestlaughing10/16/12 09:13 AM
                          Latency and HPC Workloads - Why not SRAM?SHK10/16/12 08:12 AM
                    Latency and HPC Workloads - Why not SRAM?slacker10/11/12 01:35 PM
                      SRAM leakageDavid Kanter10/11/12 03:00 PM
          Latency and HPC Workloadsforestlaughing10/15/12 08:57 AM
            Latency and HPC WorkloadsRobert Myers10/16/12 07:28 AM
              Latency and HPC WorkloadsMichael S10/16/12 07:35 AM
              Latency and HPC Workloadsanon10/16/12 08:17 AM
                Latency and HPC WorkloadsRobert Myers10/16/12 09:56 AM
                  Supercomputer variant of Kahan quotePaul A. Clayton10/16/12 11:09 AM
                    Supercomputer variant of Kahan quoteanon10/17/12 01:17 AM
                      Supercomputer variant of Kahan quoteRobert Myers10/17/12 04:34 AM
                        Supercomputer variant of Kahan quoteanon10/17/12 05:12 AM
                          Supercomputer variant of Kahan quoteRobert Myers10/17/12 02:38 PM
                            Supercomputer variant of Kahan quoteanon10/17/12 05:24 PM
                              Supercomputer variant of Kahan quoteRobert Myers10/17/12 05:45 PM
                                Supercomputer variant of Kahan quoteanon10/17/12 05:58 PM
                                Supercomputer variant of Kahan quoteanon10/17/12 05:58 PM
                                  Supercomputer variant of Kahan quoteRobert Myers10/17/12 07:14 PM
                                    Supercomputer variant of Kahan quoteanon10/17/12 08:36 PM
                                      Supercomputer variant of Kahan quoteRobert Myers10/18/12 09:47 AM
                                        Supercomputer variant of Kahan quoteanon10/19/12 02:34 AM
                                          Supercomputer variant of Kahan quoteanon10/19/12 04:47 AM
                                          Supercomputer variant of Kahan quoteRobert Myers10/19/12 03:14 PM
                        Supercomputer variant of Kahan quoteMichael S10/17/12 06:56 PM
                          Supercomputer variant of Kahan quoteanon10/17/12 09:02 PM
                            Supercomputer variant of Kahan quoteRobert Myers10/18/12 01:29 PM
                              Supercomputer variant of Kahan quoteanon10/19/12 02:27 AM
                                Supercomputer variant of Kahan quoteRobert Myers10/19/12 07:24 AM
                                  Supercomputer variant of Kahan quoteanon10/19/12 08:00 AM
                                    Supercomputer variant of Kahan quoteRobert Myers10/19/12 09:28 AM
                                      Supercomputer variant of Kahan quoteanon10/19/12 10:27 AM
                              Supercomputer variant of Kahan quoteforestlaughing10/19/12 10:26 AM
                                Supercomputer variant of Kahan quoteRobert Myers10/19/12 07:04 PM
                                  Supercomputer variant of Kahan quoteEmil Briggs10/20/12 04:52 AM
                                    Supercomputer variant of Kahan quoteRobert Myers10/20/12 07:51 AM
                                      Supercomputer variant of Kahan quoteEmil Briggs10/20/12 08:33 AM
                                        Supercomputer variant of Kahan quoteEmil Briggs10/20/12 08:34 AM
                                          Supercomputer variant of Kahan quoteRobert Myers10/20/12 09:35 AM
                                            Supercomputer variant of Kahan quoteEmil Briggs10/20/12 10:04 AM
                                              Supercomputer variant of Kahan quoteRobert Myers10/20/12 11:23 AM
                  Latency and HPC Workloadsanon10/16/12 06:48 PM
                    Latency and HPC Workloadsforestlaughing10/19/12 11:43 AM
              Latency and HPC Workloadsforestlaughing10/19/12 09:38 AM
                Latency and HPC WorkloadsRobert Myers10/19/12 11:40 AM
                Potential false economics in researchPaul A. Clayton10/19/12 12:54 PM
                  Potential false economics in researchVincent Diepeveen10/20/12 08:59 AM
                  Potential false economics in researchforestlaughing10/23/12 10:56 AM
                    Potential false economics in researchRobert Myers10/23/12 07:16 PM
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