Alder Lake and AVX-512

By: Travis Downs (travis.downs.delete@this.gmail.com), July 13, 2020 8:01 pm
Room: Moderated Discussions
Chester (lamchester.delete@this.gmail.com) on July 11, 2020 5:26 pm wrote:
> So the argument is more like, we want AVX512 and all the conveniences it brings
> over AVX2. But we don't care for physically 512-bit wide execution units.

Well it's one argument.

Generally people care more about total width than per-vector width. Obviously you'd mostly prefer a machine that did 10x 128-bit ops per cycle than one that did a single 512-bit op.

There are some exceptions: especially lane crossing shuffles. These don't scale linearly. It takes something like sixteen 128-bit any-to-any shuffles to implement a 512-bit any-to-any shuffle, so there you'd really want the wider vectors. FP code rarely cares about such crazy, general shuffles, but they are a staple for integer code since they basically stand-in for small table lookups.

> Would decoding AVX512 insts into uops that match actual execution unit width be the best of both worlds?

That's what would happen if you had small EUs, but mostly that doesn't even need to happen. There isn't much difference between 2x256-bit units and 1x512-bit units, for the dominant lane-wise operations. On Intel, the 128-bit, 256-bit and 512-bit units are largely overlapped: they are the same units.

The 128-bit units are really just one half of the 256-bit units: with very few exceptions instructions that only have a 128-bit unit (so 256-bit has 1/2 the throughput). So the other half is wasted. This one isn't that interesting.

The 512-bit units, however, are shared differently. Here, most of the big units are overlapped so that 2x256-bit units are the same thing as 1x512-bit unit. This is "easy" for lane-wise operations. So many zmm ops have half the throughput of their ymm equivalents. The main exception are chips with the second FMA unit, which is only usable by 512-bit ops, but in ICL you see that this relationship is almost exact: the 512-bit "vector width" costs you very little because you just gang together the two 256-bit units you already had.

So I think you only need to go down the path of splitting uops when your *total* width is less than the size of the instruction.

Now there are some complications in this approach: see how Intel has to fuse p0 and p1 to implement this ganging. So it is not totally efficient when you are mixing vector widths, but maybe they will solve that.
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TopicPosted ByDate
Alder Lake and AVX-512me2020/07/11 06:02 AM
  Alder Lake and AVX-512Linus Torvalds2020/07/11 10:41 AM
    informative (NT)blue2020/07/11 11:40 AM
    grumpyMichael S2020/07/11 11:51 AM
      grumpyme2020/07/11 12:27 PM
    area and power cost of AVX-512Michael S2020/07/11 11:58 AM
      area and power cost of AVX-512Anon2020/07/11 03:35 PM
        area and power cost of AVX-512Michael S2020/07/12 03:16 AM
          area and power cost of AVX-512Travis Downs2020/07/12 08:13 AM
      area and power cost of AVX-512Travis Downs2020/07/11 06:19 PM
    Alder Lake and AVX-512Maynard Handley2020/07/11 01:02 PM
      Alder Lake and AVX-512Ungo2020/07/11 04:28 PM
        Alder Lake and AVX-512Maynard Handley2020/07/11 09:16 PM
      Alder Lake and AVX-512Linus Torvalds2020/07/11 05:51 PM
        Alder Lake and AVX-5122020/07/12 12:48 PM
          Alder Lake and AVX-512Michael S2020/07/12 02:07 PM
          HDRAnon32020/07/12 02:42 PM
            HDR10 in Kaby Lake?David Kanter2020/07/12 04:09 PM
              HDR10 in Kaby Lake?Maynard Handley2020/07/12 05:13 PM
                Thanks for the link (NT)David Kanter2020/07/12 05:43 PM
              HDR10 in Kaby Lake?Anon32020/07/13 12:36 AM
        Alder Lake and AVX-512Dummond D. Slow2020/07/12 02:00 PM
        AVX-512 with narrow ex units?m2020/07/23 11:10 AM
          AVX-512 with narrow ex units?Anon2020/07/23 11:53 AM
            AVX-512 with narrow ex units?Paul A. Clayton2020/07/23 05:32 PM
              AVX-512 with narrow ex units?Anon2020/07/23 05:50 PM
                AVX-512 with narrow ex units?Paul A. Clayton2020/07/23 06:45 PM
                  AVX-512 with narrow ex units?Anon2020/07/23 07:15 PM
                    AVX-512 with narrow ex units?Jukka Larja2020/07/24 03:44 AM
                      AVX-512 with narrow ex units?Gabriele Svelto2020/07/24 01:56 PM
                        AVX-512 with narrow ex units?Jouni Osmala2020/07/24 08:22 PM
                          AVX-512 with narrow ex units?Jukka Larja2020/07/25 12:32 AM
                      AVX-512 with narrow ex units?Eugene Nalimov2020/07/25 04:56 PM
                        AVX-512 with narrow ex units?Jukka Larja2020/07/26 12:28 AM
                        AVX-512 with narrow ex units?Gabriele Svelto2020/07/26 01:22 PM
                          AVX-512 with narrow ex units?Jukka Larja2020/07/27 06:00 AM
          AVX-512 with narrow ex units?-.-2020/07/23 05:32 PM
            AVX-512 with narrow ex units?Travis Downs2020/07/24 04:01 PM
    Alder Lake and AVX-512Jörn Engel2020/07/11 03:45 PM
      Alder Lake and AVX-512Chester2020/07/11 04:26 PM
        Alder Lake and AVX-512Jörn Engel2020/07/11 05:22 PM
        Alder Lake and AVX-512Michael S2020/07/12 01:02 AM
        Alder Lake and AVX-512Travis Downs2020/07/13 08:01 PM
      Alder Lake and AVX-512Linus Torvalds2020/07/11 05:54 PM
        Alder Lake and AVX-512Jörn Engel2020/07/11 07:01 PM
          Alder Lake and AVX-512N Owen2020/07/11 11:37 PM
            Alder Lake and AVX-512Michael S2020/07/12 12:48 AM
            Alder Lake and AVX-512anon22020/07/12 06:13 PM
          Alder Lake and AVX-512Travis Downs2020/07/13 08:09 PM
            Alder Lake and AVX-512Jörn Engel2020/07/13 10:42 PM
      Alder Lake and AVX-512Doug S2020/07/11 10:49 PM
        Alder Lake and AVX-512Michael S2020/07/12 12:53 AM
    Alder Lake and AVX-512Travis Downs2020/07/11 06:03 PM
      Alder Lake and AVX-512Veedrac2020/07/11 06:43 PM
        Alder Lake and AVX-512anon22020/07/12 12:31 AM
          Alder Lake and AVX-512Veedrac2020/07/12 03:01 AM
            Alder Lake and AVX-512anon22020/07/12 02:26 PM
              Alder Lake and AVX-512Anon32020/07/12 03:07 PM
                Alder Lake and AVX-512anon22020/07/12 04:39 PM
              Alder Lake and AVX-512Veedrac2020/07/12 03:21 PM
                Alder Lake and AVX-512anon22020/07/12 04:33 PM
                  Alder Lake and AVX-512Veedrac2020/07/12 04:54 PM
                    Alder Lake and AVX-512anon22020/07/12 05:20 PM
                  Alder Lake and AVX-512David Hess2020/07/12 06:32 PM
                    Alder Lake and AVX-512anon22020/07/12 07:41 PM
                Alder Lake and AVX-5122020/07/13 03:02 AM
                  Alder Lake and AVX-512anon22020/07/13 06:25 PM
                    PentiumMMX vs Transmeta's VLIW in hindsight2020/07/19 05:16 AM
                      PentiumMMX vs Transmeta's VLIW in hindsightMaynard Handley2020/07/19 09:47 AM
                      PentiumMMX vs Transmeta's VLIW in hindsightanon22020/07/19 02:24 PM
                      VLIW, OOO, Pairing, and FusionChester2020/07/19 09:16 PM
                        Poulson was in-order (NT)anon22020/07/19 11:20 PM
                        VLIW, OOO, Pairing, and FusionMichael S2020/07/19 11:48 PM
                        Itanium is NOT VLIWHeikki Kultala2020/07/20 01:27 PM
                          Itanium is NOT VLIWAdrian2020/07/20 10:03 PM
                            Itanium crappiness and EPIC - and could EPIC still have something good in it?Heikki Kultala2020/07/21 02:38 AM
                              Itanium crappiness and EPIC - and could EPIC still have something good in it?anon22020/07/21 04:03 AM
                                Itanium crappiness and EPIC - and could EPIC still have something good in it?dmcq2020/07/21 02:27 PM
                              Itanium crappiness and EPIC - and could EPIC still have something good in it?j2020/07/21 07:54 AM
                                Itanium crappiness and EPIC - and could EPIC still have something good in it?Tim McCaffrey2020/07/21 09:30 AM
                              Itanium crappiness and EPIC - and could EPIC still have something good in it?Linus Torvalds2020/07/21 08:13 AM
                                Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureHeikki Kultala2020/07/22 11:31 AM
                                  Turn that on its head?Ray2020/07/22 11:49 AM
                                    Turn that on its head?Anon2020/07/22 12:53 PM
                                    Turn that on its head?Maynard Handley2020/07/22 01:37 PM
                                    Turn that on its head?anon22020/07/22 02:32 PM
                                    Turn that on its head?anon32020/07/22 03:45 PM
                                    Turn that on its head?Heikki Kultala2020/07/23 01:53 AM
                                      Turn that on its head?Anon2020/07/23 09:20 AM
                                        Turn that on its head?Heikki Kultala2020/07/23 10:21 AM
                                          Turn that on its head?Brett2020/07/23 02:26 PM
                                            Turn that on its head?Brett2020/07/24 03:22 AM
                                      Bundling OOO entries does this implicitlyDavid Kanter2020/07/23 09:56 AM
                                      Turn that on its head?anon2020/07/23 10:49 AM
                                  Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureMaynard Handley2020/07/22 01:29 PM
                                  Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architecturewumpus2020/07/22 02:16 PM
                                    Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureDoug S2020/07/22 09:37 PM
                                      what Intel would have doneMichael S2020/07/22 11:46 PM
                                        what Intel would have doneDoug S2020/07/23 08:52 AM
                                        what Intel would have doneAnon2020/07/23 09:25 AM
                                          what Intel would have doneMichael S2020/07/23 10:23 AM
                                            what Intel would have doneMontaray Jack2020/07/23 05:08 PM
                                    Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureHeikki Kultala2020/07/22 10:47 PM
                                      Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architecturewumpus2020/07/23 12:46 PM
                                  Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureMichael S2020/07/22 11:56 PM
                                    Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureHeikki Kultala2020/07/23 01:44 AM
                          thanksChester2020/07/24 02:50 PM
      Alder Lake and AVX-512Linus Torvalds2020/07/11 06:46 PM
        Alder Lake and AVX-512never_released2020/07/11 07:54 PM
          Alder Lake and AVX-512Michael S2020/07/12 01:25 AM
        Alder Lake and AVX-512anon22020/07/12 12:36 AM
      Alder Lake and AVX-512Doug S2020/07/11 11:01 PM
      Alder Lake and AVX-512Michael S2020/07/12 01:41 AM
        Alder Lake and AVX-512rwessel2020/07/12 09:17 AM
      Alder Lake and AVX-512-.-2020/08/18 02:24 AM
        Alder Lake and AVX-512Travis Downs2020/08/18 10:04 PM
    Alder Lake and AVX-512Geoff Langdale2020/07/11 06:49 PM
      Alder Lake and AVX-512anon2020/07/11 07:12 PM
      Alder Lake and AVX-512Jörn Engel2020/07/11 07:33 PM
        Alder Lake and AVX-512Michael S2020/07/12 02:00 AM
        Alder Lake and AVX-512Jukka Larja2020/07/12 07:51 AM
          Alder Lake and AVX-512Maynard Handley2020/07/12 09:30 AM
            Alder Lake and AVX-512Jukka Larja2020/07/13 06:43 AM
              Alder Lake and AVX-512Montaray Jack2020/07/23 06:20 PM
                Alder Lake and AVX-512Jukka Larja2020/07/24 03:57 AM
          Alder Lake and AVX-512Jörn Engel2020/07/12 10:35 AM
            Alder Lake and AVX-512Linus Torvalds2020/07/12 11:01 AM
              Alder Lake and AVX-512Linus Torvalds2020/07/12 11:15 AM
                Alder Lake and AVX-512anonymou52020/07/12 12:50 PM
                  Alder Lake and AVX-512Linus Torvalds2020/07/12 01:31 PM
                    Alder Lake and AVX-512anonymou52020/07/12 02:09 PM
                      Alder Lake and AVX-512Linus Torvalds2020/07/12 03:25 PM
                        Alder Lake and AVX-512anonymou52020/07/12 07:34 PM
                          Alder Lake and AVX-512Jose2020/07/13 12:35 AM
                  Alder Lake and AVX-512gallier22020/07/13 01:11 AM
                Alder Lake and AVX-512gallier22020/07/13 01:01 AM
                  Alder Lake and AVX-512Linus Torvalds2020/07/13 10:06 AM
                    Alder Lake and AVX-512Doug S2020/07/13 11:11 AM
                      Alder Lake and AVX-512Brett2020/07/14 01:34 AM
                        Alder Lake and AVX-512Linus Torvalds2020/07/14 08:02 AM
                          Alder Lake and AVX-512Maynard Handley2020/07/14 11:40 AM
                            Alder Lake and AVX-512Michael S2020/07/14 11:48 AM
                            Alder Lake and AVX-512Linus Torvalds2020/07/15 12:37 AM
                              OS X file names normalizationMichael S2020/07/15 01:26 AM
                                OS X file names normalizationSimon Farnsworth2020/07/15 03:16 AM
                                  OS X file names normalizationMichael S2020/07/15 09:51 AM
                                    OS X file names normalizationSimon Farnsworth2020/07/15 11:27 AM
                                OS X file names normalizationDoug S2020/07/15 09:46 AM
                                  OS X file names normalizationMichael S2020/07/15 10:05 AM
                                    OS X file names normalizationLinus Torvalds2020/07/15 11:58 AM
                                      OS X file names normalizationLinus Torvalds2020/07/15 01:21 PM
                                      OS X file names normalizationgallier22020/07/15 10:57 PM
                                    OS X file names normalizationgallier22020/07/15 10:44 PM
                                  OS X file names normalizationRob Thorpe2020/07/15 10:23 AM
                                    OS X file names normalizationDoug S2020/07/15 12:32 PM
                                      OS X file names normalizationMaynard Handley2020/07/15 04:20 PM
                                        OS X file names normalizationLinus Torvalds2020/07/15 07:37 PM
                                          OS X file names normalizationAnon32020/07/16 12:43 PM
                                            OS X file names normalizationDoug S2020/07/16 02:38 PM
                                              OS X file names normalizationLinus Torvalds2020/07/16 11:21 PM
                                                OS X file names normalizationAnon32020/07/17 01:15 AM
                                                  OS X file names normalizationJukka Larja2020/07/17 05:40 AM
                                                OS X file names normalizationgallier22020/07/17 02:19 AM
                                                  OS X file names normalizationLinus Torvalds2020/07/17 08:41 AM
                                                    OS X file names normalizationDummond D. Slow2020/07/17 08:54 AM
                                                      OS X file names normalizationLinus Torvalds2020/07/17 09:16 AM
                                                      OS X file names normalizationSimon Farnsworth2020/07/18 05:12 AM
                                              OS X file names normalizationAnon32020/07/17 01:04 AM
                                                OS X file names normalizationDoug S2020/07/17 09:15 AM
                              Alder Lake and AVX-512Maynard Handley2020/07/15 09:32 AM
                            File Systems and VC ProblemsRob Thorpe2020/07/15 06:24 AM
                    vectorization of utf8Robert David Graham2020/07/13 01:36 PM
                      vectorization of utf8anon22020/07/13 04:07 PM
                        vectorization of utf8Robert David Graham2020/07/13 07:36 PM
                          vectorization of utf8anon22020/07/13 10:23 PM
                        vectorization of utf8Maynard Handley2020/07/13 09:46 PM
                      vectorization of utf8Gabriele Svelto2020/07/15 02:27 AM
                    Alder Lake and AVX-512gallier22020/07/14 12:13 AM
              Alder Lake and AVX-512Jörn Engel2020/07/12 12:29 PM
                Alder Lake and AVX-512Linus Torvalds2020/07/12 01:08 PM
                  Alder Lake and AVX-512Jörn Engel2020/07/12 05:26 PM
                    Alder Lake and AVX-512-.-2020/07/12 06:11 PM
                      Alder Lake and AVX-512Jörn Engel2020/07/12 06:43 PM
            Alder Lake and AVX-512Jukka Larja2020/07/13 07:38 AM
              Alder Lake and AVX-512Jörn Engel2020/07/13 09:10 AM
                Alder Lake and AVX-512Michael S2020/07/13 10:02 AM
                  Alder Lake and AVX-512Jörn Engel2020/07/13 10:22 AM
                    Alder Lake and AVX-512Michael S2020/07/13 11:10 AM
                      Alder Lake and AVX-512Jörn Engel2020/07/13 03:03 PM
                Alder Lake and AVX-512Jukka Larja2020/07/14 05:53 AM
      Alder Lake and AVX-512Linus Torvalds2020/07/11 07:34 PM
        Alder Lake and AVX-512Brett2020/07/11 08:02 PM
          Alder Lake and AVX-512David Hess2020/07/13 11:36 AM
            Alder Lake and AVX-512anonymou52020/07/13 12:01 PM
              Alder Lake and AVX-512Brett2020/07/13 03:19 PM
        Alder Lake and AVX-512Geert2020/07/11 08:36 PM
          AMD's FPUChester2020/07/12 01:28 AM
            Is 3|5 lower than 4?Michael S2020/07/12 02:59 AM
              Is 3|5 lower than 4?Chester2020/07/12 04:54 AM
        Alder Lake and AVX-512Geoff Langdale2020/07/11 10:45 PM
          Alder Lake and AVX-512me2020/07/12 02:44 AM
          Alder Lake and AVX-512Michael S2020/07/12 03:09 AM
          Alder Lake and AVX-512Linus Torvalds2020/07/12 10:35 AM
            ~80% of details are wrong. So what one can expect from conclusions? :( (NT)Michael S2020/07/12 10:57 AM
              ~80% of details are wrong. So what one can expect from conclusions? :(anonymous22020/07/12 11:50 AM
            Alder Lake and AVX-512nobody in particular2020/07/12 11:25 AM
              Alder Lake and AVX-512Linus Torvalds2020/07/12 11:37 AM
                Alder Lake and AVX-512nobody in particular2020/07/12 11:43 AM
                  Alder Lake and AVX-512me2020/07/12 12:32 PM
                    Alder Lake and AVX-512Maynard Handley2020/07/12 07:51 PM
            Alder Lake and AVX-512UnmaskedUnderflow2020/07/12 11:33 AM
            AVX-512 vs SVE2-.-2020/07/12 05:22 PM
              AVX-512 vs SVE2noko2020/07/12 11:12 PM
                AVX-512 vs SVE2-.-2020/07/13 03:00 AM
            Alder Lake and AVX-512Geoff Langdale2020/07/12 07:18 PM
              Could you please stop top-posting (NT)Jukka Larja2020/07/13 07:45 AM
              Alder Lake and AVX-512Romain Dolbeau2020/07/15 12:00 AM
            Alder Lake and AVX-512Spiteful Sprites2020/07/13 03:59 AM
              Alder Lake and AVX-512nobody in particular2020/07/13 08:12 AM
                Alder Lake and AVX-512Spiteful Sprites2020/07/13 03:21 PM
                  Alder Lake and AVX-512Jouni Osmala2020/07/14 01:55 AM
                  RISC-V & commercial support (was: Alder Lake and AVX-512)Romain Dolbeau2020/07/15 12:11 AM
                    RISC-V & commercial support (was: Alder Lake and AVX-512)Romain Dolbeau2020/07/15 12:13 AM
              Alder Lake and AVX-512Linus Torvalds2020/07/13 10:10 AM
            AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Romain Dolbeau2020/07/14 09:09 AM
              AVX-512/SVE & HPC (was: Alder Lake and AVX-512)anon2020/07/14 09:53 AM
                AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Romain Dolbeau2020/07/14 10:27 AM
                  AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Maynard Handley2020/07/14 11:52 AM
                  AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Doug S2020/07/14 12:43 PM
                  AVX-512/SVE & HPC (was: Alder Lake and AVX-512)anon2020/07/14 02:01 PM
              AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Linus Torvalds2020/07/14 11:00 AM
                AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Romain Dolbeau2020/07/14 10:42 PM
                  Configurable cache line size?Doug S2020/07/15 09:56 AM
                    Configurable cache line size?dmcq2020/07/15 02:43 PM
                    Configurable cache line size?Romain Dolbeau2020/07/15 10:37 PM
                    Configurable cache line size?NoSpammer2020/07/16 12:27 AM
                    Configurable cache line size?Pixie2020/07/16 09:55 AM
                      Configurable cache line size?Etienne2020/07/17 12:03 AM
                        Configurable cache line size?Hugo Décharnes2020/07/18 01:11 AM
                  Cache line sizeMark Roulo2020/07/15 05:10 PM
                    Cache line sizeanon2020/07/15 05:46 PM
                  AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Gabriele Svelto2020/07/17 01:30 AM
                    AVX-512/SVE & HPC (was: Alder Lake and AVX-512)dmcq2020/07/17 02:34 AM
                      AVX-512/SVE & HPC (was: Alder Lake and AVX-512)zArchJon2020/07/17 12:16 PM
            Macro-instructions to the rescue2020/07/24 11:56 AM
              Some fundamentals haven't changedChester2020/07/24 02:59 PM
                Some fundamentals haven't changed2020/07/24 03:24 PM
                  Some fundamentals haven't changeddmcq2020/07/25 06:58 AM
                    Some fundamentals haven't changed2020/07/25 10:05 AM
                    Some fundamentals haven't changedBrett2020/07/25 01:16 PM
                      Some fundamentals haven't changedBrett2020/07/25 01:27 PM
                      What belt is.Heikki Kultala2020/07/26 06:49 AM
                        What belt is.Michael S2020/07/26 09:00 AM
                          What belt is.Brett2020/07/26 10:46 PM
                            What belt is.Michael S2020/07/26 11:52 PM
                              What belt is.Brett2020/07/27 06:25 AM
                                What belt is.Doug S2020/07/27 12:31 PM
                                  What belt is.Andrew Clough2020/07/28 05:11 AM
                                    What belt is.dmcq2020/07/28 07:17 AM
                                      Mill Compiler still MIA?Geoff Langdale2020/07/28 04:04 PM
                                        If they release the compiler, how they will blame the still-in-development compiler for the lacklust (NT)Anon2020/07/28 04:20 PM
                                          If they release the compiler, how they will blame the still-in-development compiler for the lacklustAnon2020/07/28 04:20 PM
                                        Apparently they're busy writing a kernel...Anon2020/07/29 02:03 AM
                                          Apparently they're busy writing a kernel...dmcq2020/07/29 02:39 AM
                        What belt is.2020/07/26 10:44 AM
                          What belt is.anonymous22020/07/26 11:02 AM
                            What belt is.Doug S2020/07/26 02:26 PM
                              What belt is.2020/07/26 03:02 PM
        gooduseruser2020/07/12 09:06 AM
      Alder Lake and AVX-512-.-2020/07/11 08:03 PM
        Alder Lake and AVX-512-.-2020/07/11 08:07 PM
      Alder Lake and AVX-512j2020/07/12 11:29 PM
        Alder Lake and AVX-512Michael S2020/07/13 12:12 AM
          Alder Lake and AVX-512j2020/07/13 01:58 AM
            Alder Lake and AVX-512dmcq2020/07/13 03:53 PM
              Alder Lake and AVX-512Michael S2020/07/13 11:57 PM
                Alder Lake and AVX-512Maynard Handley2020/07/14 09:26 AM
                Alder Lake and AVX-512dmcq2020/07/14 11:33 AM
                  Alder Lake and AVX-512dmcq2020/07/14 02:43 PM
                    Alder Lake and AVX-512Michael S2020/07/14 11:55 PM
                      Alder Lake and AVX-512dmcq2020/07/15 01:19 AM
                        Alder Lake and AVX-512Michael S2020/07/15 01:34 AM
                          Alder Lake and AVX-512dmcq2020/07/15 02:03 AM
                            Alder Lake and AVX-512Michael S2020/07/15 08:43 AM
                              Alder Lake and AVX-512dmcq2020/07/15 08:54 AM
                                Alder Lake and AVX-512Michael S2020/07/15 10:35 AM
                                  Alder Lake and AVX-512dmcq2020/07/15 02:18 PM
                                    GV100 + POWER9Michael S2020/07/16 12:17 AM
                                      GV100 + POWER9dmcq2020/07/16 07:58 AM
                                        GV100 + POWER9dmcq2020/07/16 08:10 AM
                        Alder Lake and AVX-512dmcq2020/07/15 01:48 AM
    Alder Lake and AVX-512o2020/07/12 02:08 AM
    Alder Lake and AVX-5122020/07/12 10:07 AM
      Alder Lake and AVX-5122020/07/12 10:32 AM
      Alder Lake and AVX-512Linus Torvalds2020/07/12 10:39 AM
        Alder Lake and AVX-5122020/07/12 11:47 AM
        Alder Lake and AVX-512Michael S2020/07/12 12:18 PM
          x87 crapHeikki Kultala2020/07/12 12:30 PM
            x87 crapMichael S2020/07/12 12:37 PM
              x87 crapHeikki kultala2020/07/12 01:11 PM
                x87 crapMichael S2020/07/12 01:50 PM
                  Sparc and PA-RISC vs pentium FP performanceHeikki Kultala2020/07/13 12:14 AM
                    Sparc and PA-RISC vs pentium FP performanceanonymous22020/07/13 09:48 AM
          Alder Lake and AVX-512Doug S2020/07/12 02:33 PM
            Alder Lake and AVX-512Michael S2020/07/12 03:10 PM
    Alder Lake and AVX-512David Kanter2020/07/12 04:01 PM
      Alder Lake and AVX-512anon2020/07/12 04:40 PM
      ~0% of users do much FP outside of GPUs for games (NT)anonymous22020/07/12 04:47 PM
        ~0% of users do much FP outside of GPUs for gamesMaynard Handley2020/07/12 11:26 PM
        not trueChester2020/07/12 11:37 PM
          not trueMichael S2020/07/13 12:29 AM
            not trueChester2020/07/13 12:59 AM
              not trueanonymous22020/07/13 09:32 AM
                not trueMaynard Handley2020/07/13 01:30 PM
                  not trueChester2020/07/14 04:47 AM
            not trueDoug S2020/07/13 11:30 AM
              not trueAnon2020/07/13 12:16 PM
                not trueMaynard Handley2020/07/13 01:39 PM
              not trueMaynard Handley2020/07/13 01:38 PM
          not trueLinus Torvalds2020/07/13 10:27 AM
            not trueDummond D. Slow2020/07/13 01:10 PM
              not trueMaynard Handley2020/07/13 01:49 PM
                not trueDummond D. Slow2020/07/13 02:38 PM
            not true (about FP, not avx-512)Chester2020/07/17 09:37 AM
  Alder Lake and AVX-512Travis Downs2020/07/11 05:45 PM
    Alder Lake and AVX-512-.-2020/07/11 05:57 PM
      Alder Lake and AVX-512-.-2020/07/12 03:26 PM
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