Best case for GPUs

Article: Computational Efficiency for CPUs and GPUs in 2012
By: franzliszt (none.delete@this.none.com), July 25, 2012 12:39 pm
Room: Moderated Discussions
David Kanter (dkanter.delete@this.realworldtech.com) on July 25, 2012 11:28 am wrote:

> > In a modern
> process I could tile a 200 mm2 die with nothing
> > but FMACs and clock
> >
> and power distribution and blow away everything on your
> > graph but it
> would not be
> > capable of anything useful. But hey, what
> > "efficiency"
> woot!
>
> I agree (see Tilera!).

Tilera's currently shipping 40nm 36-core processor (Gx36) contains 36 3-wide 64-bit RISC integer cores. *Each core* has a 2-way 32KB L1i, 2-way 32KB L1d, and 8-way 256KB L2 with ECC. There are two 64b on-die DDR3 controllers, 16 lanes of XAUI, 12 lanes of Gen2 PCIe, and packet, crypto and compression accelerators.

Other than the use of the word "tile", how exactly is this like tiling a 200mm^2 die with nothing but FMACs and clock and power distribution?

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TopicPosted ByDate
New Article: Compute Efficiency 2012David Kanter2012/07/25 12:37 AM
  New Article: Compute Efficiency 2012SHK2012/07/25 01:31 AM
    New Article: Compute Efficiency 2012David Kanter2012/07/25 01:42 AM
  New Article: Compute Efficiency 2012none2012/07/25 02:18 AM
    New Article: Compute Efficiency 2012David Kanter2012/07/25 10:25 AM
  GCN (NT)EBFE2012/07/25 02:25 AM
    GCN - TFLOP DPjp2012/08/09 12:58 PM
      GCN - TFLOP DPDavid Kanter2012/08/09 02:32 PM
        GCN - TFLOP DPKevin G2012/08/11 04:22 PM
      GCN - TFLOP DPEric2012/08/09 04:12 PM
        GCN - TFLOP DPjp2012/08/10 12:23 AM
          GCN - TFLOP DPEBFE2012/08/12 07:27 PM
            GCN - TFLOP DPjp2012/08/13 01:02 AM
              GCN - TFLOP DPEBFE2012/08/13 06:45 PM
                GCN - TFLOP DPjp2012/08/14 12:21 AM
  New Article: Compute Efficiency 2012Adrian2012/07/25 03:39 AM
    New Article: Compute Efficiency 2012EBFE2012/07/25 08:33 AM
    New Article: Compute Efficiency 2012David Kanter2012/07/25 10:11 AM
  New Article: Compute Efficiency 2012sf2012/07/25 05:46 AM
    New Article: Compute Efficiency 2012aaron spink2012/07/25 08:08 AM
      New Article: Compute Efficiency 2012someone2012/07/25 09:06 AM
    New Article: Compute Efficiency 2012David Kanter2012/07/25 10:14 AM
      New Article: Compute Efficiency 2012EBFE2012/07/26 01:27 AM
        BG/QDavid Kanter2012/07/26 08:31 AM
          VR-ZONE KNC B0 leak, poor number?EBFE2012/08/03 12:57 AM
            VR-ZONE KNC B0 leak, poor number?Eric2012/08/03 06:59 AM
              VR-ZONE KNC B0 leak, poor number?EBFE2012/08/04 05:37 AM
                VR-ZONE KNC B0 leak, poor number?aaron spink2012/08/04 05:51 PM
                Leaks != productsDavid Kanter2012/08/05 02:19 AM
                  Leaks != productsEBFE2012/08/06 01:49 AM
                VR-ZONE KNC B0 leak, poor number?Eric2012/08/05 09:37 AM
                  VR-ZONE KNC B0 leak, poor number?EBFE2012/08/06 02:09 AM
                    VR-ZONE KNC B0 leak, poor number?aaron spink2012/08/06 03:33 AM
                      VR-ZONE KNC B0 leak, poor number?jp2012/08/07 02:08 AM
                        VR-ZONE KNC B0 leak, poor number?Eric2012/08/07 03:58 AM
                          VR-ZONE KNC B0 leak, poor number?jp2012/08/07 04:17 AM
                            VR-ZONE KNC B0 leak, poor number?Eric2012/08/07 04:22 AM
                              VR-ZONE KNC B0 leak, poor number?anonymou52012/08/07 08:43 AM
                            VR-ZONE KNC B0 leak, poor number?jp2012/08/07 04:23 AM
                              VR-ZONE KNC B0 leak, poor number?aaron spink2012/08/07 06:24 AM
                        VR-ZONE KNC B0 leak, poor number?aaron spink2012/08/07 06:20 AM
                          VR-ZONE KNC B0 leak, poor number?jp2012/08/07 10:22 AM
                            VR-ZONE KNC B0 leak, poor number?EduardoS2012/08/07 02:15 PM
                        KNC has FMADavid Kanter2012/08/07 08:17 AM
  New Article: Compute Efficiency 2012forestlaughing2012/07/25 07:51 AM
    New Article: Compute Efficiency 2012Eric2012/07/27 04:12 AM
      New Article: Compute Efficiency 2012hobold2012/07/27 10:53 AM
        New Article: Compute Efficiency 2012Eric2012/07/27 11:51 AM
          New Article: Compute Efficiency 2012hobold2012/07/27 01:48 PM
            New Article: Compute Efficiency 2012Eric2012/07/27 02:29 PM
        New Article: Compute Efficiency 2012anon2012/07/29 01:25 AM
          New Article: Compute Efficiency 2012hobold2012/07/29 10:53 AM
  Efficiency? No, lack of highly useful featuressomeone2012/07/25 08:58 AM
    Best case for GPUsDavid Kanter2012/07/25 10:28 AM
      Best case for GPUsfranzliszt2012/07/25 12:39 PM
      Best case for GPUsChuck2012/07/25 07:13 PM
        Best case for GPUsDavid Kanter2012/07/25 08:45 PM
        Best case for GPUsEric2012/07/27 04:51 AM
  Silverthorn data pointMichael S2012/07/25 01:45 PM
    Silverthorn data pointDavid Kanter2012/07/25 03:06 PM
  New Article: Compute Efficiency 2012Unununium2012/07/25 04:55 PM
    New Article: Compute Efficiency 2012EduardoS2012/07/25 07:12 PM
      Ops... I'm wrong...EduardoS2012/07/25 07:14 PM
  New Article: Compute Efficiency 2012TacoBell2012/07/25 07:36 PM
    New Article: Compute Efficiency 2012David Kanter2012/07/25 08:49 PM
    New Article: Compute Efficiency 2012Michael S2012/07/26 01:33 AM
  Line and factorMoritz2012/07/26 12:34 AM
    Line and factorPeter Boyle2012/07/27 06:57 AM
      not entirelyMoritz2012/07/27 11:22 AM
      Line and factorEduardoS2012/07/27 04:24 PM
        Line and factorMoritz2012/07/28 11:52 AM
  tables Michael S2012/07/26 01:39 AM
  Interlagos L2+L3Rana2012/07/26 02:13 AM
    Interlagos L2+L3Rana2012/07/26 02:13 AM
    Interlagos L2+L3David Kanter2012/07/26 08:21 AM
      SP vs DP & performance metricsjp2012/07/27 06:08 AM
        SP vs DP & performance metricsEric2012/07/27 06:57 AM
          SP vs DP & performance metricsjp2012/07/27 08:18 AM
            SP vs DP & performance metricsaaron spink2012/07/27 08:36 AM
              SP vs DP & performance metricsjp2012/07/27 08:47 AM
                "Global" --> systemPaul A. Clayton2012/07/27 09:31 AM
                  "Global" --> systemjp2012/07/27 02:55 PM
                    "Global" --> systemaaron spink2012/07/27 06:33 PM
                      "Global" --> systemjp2012/07/28 01:00 AM
                        "Global" --> systemaaron spink2012/07/28 05:54 AM
                          "Global" --> systemjp2012/07/29 01:12 AM
                            "Global" --> systemaaron spink2012/07/29 04:03 AM
                              "Global" --> systemnone2012/07/29 08:05 AM
                                "Global" --> systemEduardoS2012/07/29 09:26 AM
                                "Global" --> systemjp2012/07/30 01:24 AM
                                  "Global" --> systemaaron spink2012/07/30 02:05 AM
                                "Global" --> systemaaron spink2012/07/30 02:03 AM
                                  daxpy is STREAM TRIADPaul A. Clayton2012/07/30 05:10 AM
                SP vs DP & performance metricsaaron spink2012/07/27 06:25 PM
                  SP vs DP & performance metricsEmil Briggs2012/07/28 05:40 AM
                    SP vs DP & performance metricsaaron spink2012/07/28 06:05 AM
                      SP vs DP & performance metricsjp2012/07/28 10:04 AM
                        SP vs DP & performance metricsBrett2012/07/28 02:32 PM
                      SP vs DP & performance metricsEmil Briggs2012/07/28 05:11 PM
                        SP vs DP & performance metricsanon2012/07/29 01:53 AM
                        SP vs DP & performance metricsaaron spink2012/07/29 04:39 AM
                          Coherency for discretesRohit2012/07/29 08:24 AM
                          SP vs DP & performance metricsanon2012/07/29 10:09 AM
                          SP vs DP & performance metricsEric2012/07/29 12:08 PM
        SP vs DP & performance metricsaaron spink2012/07/27 08:25 AM
  Regular updates?Joe2012/07/27 08:35 AM
  New Article: Compute Efficiency 20123092012/07/27 09:34 PM
  New Article: Compute Efficiency 2012Ingeneer2012/07/30 08:01 AM
    New Article: Compute Efficiency 2012David Kanter2012/07/30 12:11 PM
      New Article: Compute Efficiency 2012Ingeneer2012/07/30 07:04 PM
        New Article: Compute Efficiency 2012David Kanter2012/07/30 08:32 PM
          Memory power and bandwidth?Iain McClatchie2012/08/03 03:35 PM
            Memory power and bandwidth?David Kanter2012/08/04 10:22 AM
              Memory power and bandwidth?Michael S2012/08/04 01:36 PM
              Memory power and bandwidth?Iain McClatchie2012/08/06 01:09 PM
              Memory power and bandwidth?Eric2012/08/07 05:28 PM
                WorkloadsDavid Kanter2012/08/08 09:49 AM
                  WorkloadsEric2012/08/09 04:21 PM
                Latency and bandwidth bottlenecks Paul A. Clayton2012/08/08 03:02 PM
                  Latency and bandwidth bottlenecks Eric2012/08/09 04:32 PM
                    Latency and bandwidth bottlenecks none2012/08/10 05:06 AM
                  Latency and bandwidth bottlenecks -> BDPajensen2012/08/11 02:21 PM
            Memory power and bandwidth?Ingeneer2012/08/06 10:26 AM
  NV aims for 1.8+ TFLOPS DP ?jp2012/08/11 12:21 PM
    NV aims for 1.8+ TFLOPS DP ?David Kanter2012/08/11 08:25 PM
      NV aims for 1.8+ TFLOPS DP ?jp2012/08/12 01:45 AM
      NV aims for 1.8+ TFLOPS DP ?EBFE2012/08/12 09:02 PM
        NV aims for 1.8+ TFLOPS DP ?jp2012/08/13 12:54 AM
          NV aims for 1.8+ TFLOPS DP ?Gabriele Svelto2012/08/13 08:16 AM
            NV aims for 1.8+ TFLOPS DP ?Vincent Diepeveen2012/08/14 02:04 AM
          NV aims for 1.8+ TFLOPS DP ?David Kanter2012/08/13 08:50 AM
            NV aims for 1.8+ TFLOPS DP ?jp2012/08/13 10:17 AM
        NV aims for 1.8+ TFLOPS DP ?EduardoS2012/08/13 05:45 AM
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