Manycores vs multicores

By: Exophase (exophase.delete@this.gmail.com), January 10, 2015 6:49 pm
Room: Moderated Discussions
juanrga (nospam.delete@this.juanrga.com) on January 10, 2015 6:32 pm wrote:
> Any GPU that I know fits the manycore definition.

There is no hard manycore definition so you can pretty much say what you want. But it's not useful to consider GPUs or Xeon Phi as the same class of devices as something like Parallela that scales to hundreds (or thousands) of fully independent, more or less clasical small scalar in-order cores. Cores with very wide vector processors and many in-flight threads are better at a different set of problems than big sets of small independent cores are.

But the worst thing is when people call vector lanes individual cores.

Yes, GPUs and Xeon Phi do still tend to have a few times or even an order of magnitude more cores than the heavily throughput optimized alternatives like Haswell or Power8. That's true even normalizing for the die area difference between the highest end desktop GPUs and highest end desktop CPUs. But that doesn't they were optimizing core count. More likely the core size just ended up as it did as a natural result of scaling a useful DLP optimized to a comfortable point before starting to get too diminished returns.
< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
ARMv8 getting atomic operationsdmcq2014/12/02 05:32 PM
  ARMv8 getting atomic operationsMaynard Handley2014/12/02 07:33 PM
    ARMv8 getting atomic operationsDoug S2014/12/02 10:30 PM
      ARMv8 getting atomic operationsdmcq2014/12/03 03:16 AM
      ARMv8 getting atomic operationsMaynard Handley2014/12/03 09:20 AM
      ARMv8 getting atomic operationsBrett2014/12/03 04:46 PM
    ARMv8 getting atomic operationsAndreas2014/12/03 06:51 AM
      ARMv8 getting atomic operationsLinus Torvalds2014/12/03 11:15 AM
        ARMv8 getting atomic operationsanon2014/12/03 05:08 PM
          Guaranteed transactionsPaul A. Clayton2014/12/03 08:04 PM
            Guaranteed transactionsanon2014/12/03 08:38 PM
              Avoiding ping pongPaul A. Clayton2014/12/04 09:11 AM
                Avoiding ping ponganon2014/12/04 10:15 AM
                  OoO window is limitedPaul A. Clayton2014/12/04 01:06 PM
                Avoiding ping pongAaron Spink2014/12/04 12:01 PM
                  Avoiding ping pongKonrad Schwarz2014/12/04 01:10 PM
                    Avoiding ping pongAaron Spink2014/12/04 02:31 PM
                    Avoiding ping pongGabriele Svelto2014/12/04 02:49 PM
                      Avoiding ping pongKonrad Schwarz2014/12/04 11:08 PM
                        Avoiding ping pongGabriele Svelto2014/12/05 12:04 AM
                          Avoiding ping pongEric Bron nli2014/12/05 02:28 AM
                            Avoiding ping pongKonrad Schwarz2014/12/05 03:37 AM
                              Avoiding ping pongEric Bron nli2014/12/05 04:23 AM
                                Avoiding ping pongKlimax2014/12/05 05:47 AM
                                  Avoiding ping pongEric Bron2014/12/05 06:24 AM
                              Avoiding ping pongGabriele Svelto2014/12/05 10:38 AM
                                Avoiding ping pongKonrad Schwarz2014/12/07 02:28 PM
                                  Avoiding ping pongGabriele Svelto2014/12/08 07:10 PM
                                    Avoiding ping pongKonrad Schwarz2014/12/09 05:12 AM
                                      Avoiding ping pongGabriele Svelto2014/12/09 07:31 AM
                                        Avoiding ping ponganon2014/12/09 11:24 PM
                            Avoiding ping pongGabriele Svelto2014/12/05 10:17 AM
                              Avoiding ping pongEric Bron2014/12/05 10:32 AM
                                Avoiding ping pongGabriele Svelto2014/12/05 12:45 PM
                                  Avoiding ping pongEric Bron2014/12/06 02:20 AM
                                    Avoiding ping pongnksingh2014/12/06 03:42 AM
                                      Avoiding ping pongEric Bron2014/12/06 04:04 AM
                                        Avoiding ping pongGiGNiC2014/12/06 06:27 AM
                                          Avoiding ping pongEric Bron nli2014/12/06 06:44 AM
                                          Avoiding ping pongEric Bron2014/12/06 07:07 AM
                                            Avoiding ping pongnksingh2014/12/07 04:06 PM
                                              Avoiding ping pongEric Bron2014/12/08 04:17 AM
                                                Avoiding ping pongGiGNiC2014/12/08 11:53 AM
                                                Avoiding ping pongnksingh2014/12/08 05:53 PM
                                                  Avoiding ping pongEric Bron2014/12/09 01:33 AM
                                    Avoiding ping pongdmsc2014/12/06 04:12 AM
                                      Avoiding ping pongEric Bron2014/12/06 04:25 AM
                                        Avoiding ping pongKlimax2014/12/06 05:49 AM
                                          Avoiding ping pongrwessel2014/12/07 02:34 AM
                                        Avoiding ping pongdmsc2014/12/06 07:39 AM
                                        Avoiding ping pongKonrad Schwarz2014/12/07 02:37 PM
                                          Avoiding ping pongMichael S2014/12/07 04:37 PM
                                            Avoiding ping pongKonrad Schwarz2014/12/08 04:35 AM
                          Avoiding ping pongKonrad Schwarz2014/12/05 03:30 AM
                        Avoiding ping pongLinus Torvalds2014/12/05 12:58 PM
                          Avoiding ping pongEric Bron2014/12/06 02:42 AM
                            Avoiding ping pongnksingh2014/12/06 03:51 AM
                              Avoiding ping pongEric Bron2014/12/06 04:08 AM
                            Avoiding ping pongLinus Torvalds2014/12/06 01:25 PM
                              Avoiding ping pongnksingh2014/12/07 03:26 PM
                                Avoiding ping pongEric Bron2014/12/08 04:35 AM
                                  Avoiding ping pongBrett2014/12/08 10:00 AM
                                    Avoiding ping pongEric Bron2014/12/08 10:48 AM
                                    Avoiding ping pongrwessel2014/12/08 12:52 PM
                                      Avoiding ping pongBrett2014/12/08 01:58 PM
                                      Avoiding ping pongDoug S2014/12/08 02:04 PM
                              Avoiding ping pongJouni Osmala2014/12/08 02:45 AM
                                Avoiding ping ponganon2014/12/08 05:44 AM
                                  Avoiding ping pongJouni Osmala2014/12/08 01:10 PM
                                    Avoiding ping pongLinus Torvalds2014/12/08 01:34 PM
                                      Avoiding ping pongJouni Osmala2014/12/08 03:47 PM
                                        Avoiding ping pongLinus Torvalds2014/12/08 08:08 PM
                                          Avoiding ping pongGabriele Svelto2014/12/09 07:48 AM
                                            Avoiding ping pongMaynard Handley2014/12/09 11:41 AM
                                              Avoiding ping pongPatrick Chase2014/12/09 01:06 PM
                                              Avoiding ping pongGabriele Svelto2014/12/09 01:52 PM
                                                Avoiding ping pongPatrick Chase2014/12/09 02:08 PM
                                            Why read RWT or Reddit when you can get journalists to do it for you?Rob Thorpe2015/01/02 08:20 AM
                                              Why read RWT or Reddit when you can get journalists to do it for you?juanrga2015/01/02 11:21 AM
                                                Why read RWT or Reddit when you can get journalists to do it for you?EduardoS2015/01/02 11:37 AM
                                                  Why read RWT or Reddit when you can get journalists to do it for you?juanrga2015/01/03 12:00 PM
                                                Why read RWT or Reddit when you can get journalists to do it for you?Eric Bron nli2015/01/02 02:28 PM
                                                  Why read RWT or Reddit when you can get journalists to do it for you?juanrga2015/01/03 12:02 PM
                                                    Why read RWT or Reddit when you can get journalists to do it for you?Michael S2015/01/03 12:36 PM
                                                      Why read RWT or Reddit when you can get journalists to do it for you?juanrga2015/01/03 01:11 PM
                                                        Why read RWT or Reddit when you can get journalists to do it for you?Michael S2015/01/03 01:30 PM
                                                          Why read RWT or Reddit when you can get journalists to do it for you?Eric Bron2015/01/03 02:57 PM
                                                            KNL cacheDavid Kanter2015/01/03 07:36 PM
                                                              KNL cacheEric Bron2015/01/04 03:34 AM
                                                                KNL cacheMichael S2015/01/04 04:11 AM
                                                                  KNL cacheEric Bron2015/01/04 04:57 AM
                                                                    KNL cacheMichael S2015/01/04 05:21 AM
                                                                      KNL cacheEric Bron2015/01/04 05:58 AM
                                                          Why read RWT or Reddit when you can get journalists to do it for you?juanrga2015/01/07 05:47 AM
                                                            Why read RWT or Reddit when you can get journalists to do it for you?Michael S2015/01/07 08:27 AM
                                                              Manycores vs multicoresjuanrga2015/01/10 04:10 PM
                                                                Manycores vs multicoresAaron Spink2015/01/10 05:32 PM
                                                                  Manycores vs multicoresjuanrga2015/01/10 06:32 PM
                                                                    Manycores vs multicoresExophase2015/01/10 06:49 PM
                                                                      Manycores vs multicoresjuanrga2015/01/10 08:21 PM
                                                                        Manycores vs multicoresExophase2015/01/10 08:51 PM
                                                                        Manycores vs multicoresAaron Spink2015/01/10 09:03 PM
                                                                    Manycores vs multicoresAaron Spink2015/01/10 07:21 PM
                                                                      Manycores vs multicoresjuanrga2015/01/10 08:25 PM
                                                                        Manycores vs multicoresAaron Spink2015/01/10 09:11 PM
                                                                          Manycores vs multicoresJouni Osmala2015/01/11 04:50 AM
                                                                            Manycores vs multicoresjuanrga2015/01/11 08:58 AM
                                                                            Manycores vs multicorescoppice2015/01/12 10:01 PM
                                                                              Manycores vs multicoresJouni Osmala2015/01/13 04:38 AM
                                                                        Manycores vs multicoresanon2015/01/11 03:19 AM
                                                                      Manycores vs multicoresMichael S2015/01/11 05:44 AM
                                                                        Manycores vs multicoresAaron Spink2015/01/11 05:55 PM
                                                                          Manycores vs multicoresMichael S2015/01/12 04:41 AM
                                                                            Manycores vs multicoresEric Bron2015/01/12 06:29 AM
                                                                              Manycores vs multicoresEric Bron2015/01/12 06:30 AM
                                                        Why read RWT or Reddit when you can get journalists to do it for you?Eric Bron2015/01/03 02:54 PM
                                                          Why read RWT or Reddit when you can get journalists to do it for you?juanrga2015/01/07 05:48 AM
                                                            Why read RWT or Reddit when you can get journalists to do it for you?Eric Bron2015/01/07 07:41 AM
                                                              Manycores vs multicoresjuanrga2015/01/10 04:14 PM
                                                    Why read RWT or Reddit when you can get journalists to do it for you?Eric Bron2015/01/03 02:42 PM
                                                      Why read RWT or Reddit when you can get journalists to do it for you?juanrga2015/01/07 06:03 AM
                                                        Why read RWT or Reddit when you can get journalists to do it for you?Eric Bron2015/01/07 07:45 AM
                                                        Why read RWT or Reddit when you can get journalists to do it for you?Linus Torvalds2015/01/08 03:09 PM
                                                          Pink unicorns for salejuanrga2015/01/10 05:09 PM
                                                        Intentionally picking a competitors slow part is cheating ...Mark Roulo2015/01/08 06:37 PM
                                                          Intentionally picking a competitors slow part is cheating ...coppice2015/01/08 11:38 PM
                                                            Intentionally picking a competitors slow part is cheating ...Mark Roulo2015/01/09 09:13 AM
                                                              Intentionally picking a competitors slow part is cheating ...Anon2015/01/10 02:00 AM
                                                              Intentionally picking a competitors slow part is cheating ...David Hess2015/01/11 01:03 PM
                                                            Intentionally picking a competitors slow part is cheating ...someone2015/01/09 10:31 AM
                                                              Intentionally picking a competitors slow part is cheating ...coppice2015/01/12 09:45 PM
                                                                Intentionally picking a competitors slow part is cheating ...coppice2015/01/12 09:47 PM
                                                                  Intentionally picking a competitors slow part is cheating ...Michael S2015/01/13 07:53 AM
                                                                    Intentionally picking a competitors slow part is cheating ...coppice2015/01/13 09:44 AM
                                                                      Intentionally picking a competitors slow part is cheating ...Michael S2015/01/13 10:01 AM
                                                                        Intentionally picking a competitors slow part is cheating ...coppice2015/01/13 08:35 PM
                                                                      Core sizesjuanrga2015/01/13 12:28 PM
                                                          NVIDIA'S FIRST CPU IS A WINNER (Linley Gwennap)juanrga2015/01/10 04:34 PM
                                                        Why read RWT or Reddit when you can get journalists to do it for you?Patrick Chase2015/01/08 07:02 PM
                                                        Why read RWT or Reddit when you can get journalists to do it for you?coppice2015/01/08 10:18 PM
                                                          Why read RWT or Reddit when you can get journalists to do it for you?Patrick Chase2015/01/09 11:54 AM
                                                            Why read RWT or Reddit when you can get journalists to do it for you?Mark Roulo2015/01/09 12:59 PM
                                                              Why read RWT or Reddit when you can get journalists to do it for you?Patrick Chase2015/01/09 03:20 PM
                                                                Why read RWT or Reddit when you can get journalists to do it for you?Eric Bron2015/01/09 03:30 PM
                                                            Alternatives to OOOE (again)juanrga2015/01/10 04:50 PM
                                                              Alternatives to OOOE (again)David Kanter2015/01/11 12:10 AM
                                                                Alternatives to OOOE (again)juanrga2015/01/11 08:30 AM
                                                            Why read RWT or Reddit when you can get journalists to do it for you?Gabriele Svelto2015/01/11 12:53 AM
                                              Why read RWT or Reddit when you can get journalists to do it for you?Fake Linus Torvalds2015/01/03 12:14 PM
                                                Why read RWT or Reddit when you can get journalists to do it for you?Rob Thorpe2015/01/03 08:25 PM
                                          Avoiding ping pongMaynard Handley2014/12/09 11:33 AM
                                            Avoiding ping pongPatrick Chase2014/12/09 01:54 PM
                                              Avoiding ping pongMaynard Handley2014/12/09 06:56 PM
                                      Avoiding ping pongSalvatore De Dominicis2014/12/09 08:51 AM
                                        Avoiding ping pongPatrick Chase2014/12/09 02:00 PM
                                      Avoiding ping pongook2014/12/11 03:31 AM
                                      Avoiding ping pongArt Scott2014/12/19 10:19 PM
                                        Avoiding ping pongEric Bron nli2014/12/20 04:05 AM
                                      What about specialization?Troll?2015/01/02 07:55 AM
                                        What about specialization?Ungo2015/01/04 03:27 PM
                                      Avoiding ping pongfewwef2015/01/05 08:16 PM
                                      Avoiding ping pongV.Krishn2015/01/08 06:11 AM
                                    Avoiding ping pongGabriele Svelto2014/12/08 07:32 PM
                                    Avoiding ping ponganon2014/12/08 11:37 PM
                            Avoiding ping pongKonrad Schwarz2014/12/10 06:23 AM
                              Avoiding ping pongLinus Torvalds2014/12/10 11:56 AM
                          Object reference lockingDavid W2014/12/08 11:36 PM
                            Object reference lockingPatrick Chase2014/12/09 04:52 PM
                              Object reference lockingDavid W2014/12/11 05:18 AM
                    ISA != interface for "most programmers"Paul A. Clayton2014/12/04 03:34 PM
                      ISA != interface for "most programmers"rwessel2014/12/04 07:50 PM
                  Interesting! (exporting hot lines/cache-aware ISA); "Please sir, I want some more" (NT)Paul A. Clayton2014/12/04 02:26 PM
                  Avoiding ping pongMichael S2014/12/06 03:48 PM
          ARMv8 getting atomic operationsLinus Torvalds2014/12/04 12:05 PM
            LL/SC idiom recognition is not admitting RMW superiorityPaul A. Clayton2014/12/04 02:34 PM
            ARMv8 getting atomic operationsanon2014/12/04 10:17 PM
    ARMv8 getting atomic operationsPatrick Chase2014/12/03 12:09 PM
  limited ordernksingh2014/12/04 10:17 PM
    I didn't understand this either. (NT)Konrad Schwarz2014/12/04 10:32 PM
    limited orderdmcq2014/12/05 02:13 AM
    limited orderbakaneko2014/12/05 09:11 AM
Reply to this Topic
Name:
Email:
Topic:
Body: No Text
How do you spell green?