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 Kanter2012/09/18 12:26 PM
  Higher SRAM voltage and shared L1Paul A. Clayton2012/09/18 02:38 PM
    Higher SRAM voltage and shared L1David Kanter2012/09/18 05:20 PM
      Higher SRAM voltage and shared L1Eric2012/09/20 10:44 AM
        Higher SRAM voltage and shared L1David Kanter2012/09/20 12:24 PM
      Yes, that kind of asynchronousPaul A. Clayton2012/09/20 02:53 PM
    Higher SRAM voltage and shared L1somebody2012/09/19 09:27 AM
      So micro-turboboost is doubly impracticalPaul A. Clayton2012/09/20 02:53 PM
  Big littleDoug S2012/09/18 03:04 PM
    Big littleDavid Kanter2012/09/18 04:05 PM
    Big littleRicardo B2012/09/19 04:06 AM
  New article: Intel's Near-Threshold Computingdefderdar2012/09/18 09:39 PM
    New article: Intel's Near-Threshold Computingtarlinian2012/09/19 08:32 AM
      New article: Intel's Near-Threshold ComputingDavid Kanter2012/09/19 10:44 AM
  New article: Intel's Near-Threshold ComputingMark Christiansen2012/09/19 11:31 AM
    New article: Intel's Near-Threshold ComputingChris Brodersen2012/09/19 12:54 PM
  New article: Intel's Near-Threshold ComputingEric2012/09/20 10:47 AM
  Latency and HPC WorkloadsRobert Myers2012/10/03 10:52 AM
    Latency and HPC Workloadsanon2012/10/03 06:50 PM
      Latency and HPC WorkloadsRobert Myers2012/10/04 10:24 AM
        Latency and HPC WorkloadsSHK2012/10/08 05:42 AM
          Latency and HPC WorkloadsMichael S2012/10/08 01:59 PM
            Latency and HPC WorkloadsSHK2012/10/08 02:42 PM
              Latency and HPC WorkloadsMichael S2012/10/08 05:12 PM
                Latency and HPC Workloadsforestlaughing2012/10/15 08:41 AM
                  The original context was Micron RLDRAM (NT)Michael S2012/10/15 08:55 AM
                    The original context was Micron RLDRAMforestlaughing2012/10/15 10:21 AM
              Latency and HPC Workloads - Why not SRAM?Kevin G2012/10/09 09:48 AM
                Latency and HPC Workloads - Why not SRAM?Michael S2012/10/09 10:33 AM
                  Latency and HPC Workloads - Why not SRAM?SHK2012/10/09 12:55 PM
                    Why not SRAM? - CapacityRohit2012/10/09 09:13 PM
                  Latency and HPC Workloads - Why not SRAM?Kevin G2012/10/09 03:04 PM
                    Latency and HPC Workloads - Why not SRAM?Michael S2012/10/09 04:52 PM
                      Latency and HPC Workloads - Why not SRAM?Robert Myers2012/10/10 10:11 AM
                        Latency and HPC Workloads - Why not SRAM?forestlaughing2012/10/15 08:02 AM
                          Latency and HPC Workloads - Why not SRAM?Robert Myers2012/10/15 09:04 AM
                            Latency and HPC Workloads - Why not SRAM?forestlaughing2012/10/16 09:13 AM
                          Latency and HPC Workloads - Why not SRAM?SHK2012/10/16 08:12 AM
                    Latency and HPC Workloads - Why not SRAM?slacker2012/10/11 01:35 PM
                      SRAM leakageDavid Kanter2012/10/11 03:00 PM
          Latency and HPC Workloadsforestlaughing2012/10/15 08:57 AM
            Latency and HPC WorkloadsRobert Myers2012/10/16 07:28 AM
              Latency and HPC WorkloadsMichael S2012/10/16 07:35 AM
              Latency and HPC Workloadsanon2012/10/16 08:17 AM
                Latency and HPC WorkloadsRobert Myers2012/10/16 09:56 AM
                  Supercomputer variant of Kahan quotePaul A. Clayton2012/10/16 11:09 AM
                    Supercomputer variant of Kahan quoteanon2012/10/17 01:17 AM
                      Supercomputer variant of Kahan quoteRobert Myers2012/10/17 04:34 AM
                        Supercomputer variant of Kahan quoteanon2012/10/17 05:12 AM
                          Supercomputer variant of Kahan quoteRobert Myers2012/10/17 02:38 PM
                            Supercomputer variant of Kahan quoteanon2012/10/17 05:24 PM
                              Supercomputer variant of Kahan quoteRobert Myers2012/10/17 05:45 PM
                                Supercomputer variant of Kahan quoteanon2012/10/17 05:58 PM
                                Supercomputer variant of Kahan quoteanon2012/10/17 05:58 PM
                                  Supercomputer variant of Kahan quoteRobert Myers2012/10/17 07:14 PM
                                    Supercomputer variant of Kahan quoteanon2012/10/17 08:36 PM
                                      Supercomputer variant of Kahan quoteRobert Myers2012/10/18 09:47 AM
                                        Supercomputer variant of Kahan quoteanon2012/10/19 02:34 AM
                                          Supercomputer variant of Kahan quoteanon2012/10/19 04:47 AM
                                          Supercomputer variant of Kahan quoteRobert Myers2012/10/19 03:14 PM
                        Supercomputer variant of Kahan quoteMichael S2012/10/17 06:56 PM
                          Supercomputer variant of Kahan quoteanon2012/10/17 09:02 PM
                            Supercomputer variant of Kahan quoteRobert Myers2012/10/18 01:29 PM
                              Supercomputer variant of Kahan quoteanon2012/10/19 02:27 AM
                                Supercomputer variant of Kahan quoteRobert Myers2012/10/19 07:24 AM
                                  Supercomputer variant of Kahan quoteanon2012/10/19 08:00 AM
                                    Supercomputer variant of Kahan quoteRobert Myers2012/10/19 09:28 AM
                                      Supercomputer variant of Kahan quoteanon2012/10/19 10:27 AM
                              Supercomputer variant of Kahan quoteforestlaughing2012/10/19 10:26 AM
                                Supercomputer variant of Kahan quoteRobert Myers2012/10/19 07:04 PM
                                  Supercomputer variant of Kahan quoteEmil Briggs2012/10/20 04:52 AM
                                    Supercomputer variant of Kahan quoteRobert Myers2012/10/20 07:51 AM
                                      Supercomputer variant of Kahan quoteEmil Briggs2012/10/20 08:33 AM
                                        Supercomputer variant of Kahan quoteEmil Briggs2012/10/20 08:34 AM
                                          Supercomputer variant of Kahan quoteRobert Myers2012/10/20 09:35 AM
                                            Supercomputer variant of Kahan quoteEmil Briggs2012/10/20 10:04 AM
                                              Supercomputer variant of Kahan quoteRobert Myers2012/10/20 11:23 AM
                  Latency and HPC Workloadsanon2012/10/16 06:48 PM
                    Latency and HPC Workloadsforestlaughing2012/10/19 11:43 AM
              Latency and HPC Workloadsforestlaughing2012/10/19 09:38 AM
                Latency and HPC WorkloadsRobert Myers2012/10/19 11:40 AM
                Potential false economics in researchPaul A. Clayton2012/10/19 12:54 PM
                  Potential false economics in researchVincent Diepeveen2012/10/20 08:59 AM
                  Potential false economics in researchforestlaughing2012/10/23 10:56 AM
                    Potential false economics in researchRobert Myers2012/10/23 07:16 PM
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