because per-core perf has stagnated

By: Michael S (already5chosen.delete@this.yahoo.com), May 20, 2019 12:48 am
Room: Moderated Discussions
Foo_ (foo.delete@this.nomail.com) on May 20, 2019 12:58 am wrote:
> Adrian (a.delete@this.acm.org) on May 19, 2019 9:09 pm wrote:
> >
> > That is why I said that these improvements apply mainly to professional users,
> > not for typical users. I am only using programs compiled specifically for the
> > processors on which I run them, but few non-professional users do that.
>
> Even among professional users, the tendency is not to use programs compiled specifically
> for the processor. Much professional software is off-the-shelf software that comes in precompiled
> binaries (even open source software you generally don't recompile yourself).
>

Apart from convenience for the user, binary distribution has huge advantage in that that would you got was actually tested, at worst minimally, and hopefully better than that. The last thing a software vendor want is to be blamed for bug that shows app only with compiler they never tested and that probably didn't even exist at the time of tests. And it absolutely does not matter if the bug is their's or compiler's.

> > Unfortunately like for AVX, AVX2 & FMA, Intel has chosen
> > to not implement the BMI1, BMI2, ABM & ADX instruction
> > groups on the Atom series of processors, including on the
> > more recent Apollo Lake, Denverton and Gemini Lake,
> > so many programs choose not to use these modern instructions, to support more existing computers.
>
> And perhaps simply because they wouldn't benefit much.
>

BMI and ADX are minor improvements, but AVX tends to ether not help at all or help rather significantly.
< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
Intel's roadmapLaurent2019/05/13 07:37 AM
  Intel's roadmapAlberto2019/05/13 08:44 AM
    Intel's roadmapblue2019/05/13 09:26 AM
    Intel's roadmapMaynard Handley2019/05/13 10:04 AM
      Intel's roadmapAdrian2019/05/13 12:15 PM
      Actually not bad for IntelChester Lam2019/05/14 04:26 PM
        Actually not bad for IntelMaynard Handley2019/05/14 05:33 PM
          Actually not bad for IntelChester Lam2019/05/14 07:52 PM
            Easily, just grab the LN2... (NT)blue2019/05/14 09:41 PM
            Actually not bad for IntelMaynard Handley2019/05/14 10:32 PM
              Application mattersChester Lam2019/05/15 02:15 AM
      Intel's roadmapAlberto2019/05/15 06:58 AM
        Intel's roadmapnone2019/05/15 07:25 AM
        Intel's roadmapChester Lam2019/05/15 07:32 AM
          Sh*** is Sh** foreverAlberto2019/05/15 07:47 AM
            Sh*** is Sh** forevernone2019/05/15 08:05 AM
              benchmarks...Chester Lam2019/05/15 08:33 AM
                benchmarks...none2019/05/15 09:09 AM
                  benchmarks...Chester Lam2019/05/15 03:51 PM
                    benchmarks...Doug S2019/05/16 12:10 PM
                      benchmarks...chester lam2019/05/16 02:20 PM
                        benchmarks...Doug S2019/05/16 02:28 PM
                          benchmarks...chester lam2019/05/16 03:00 PM
                            benchmarks...Doug S2019/05/17 02:39 AM
                              benchmarks...Chester Lam2019/05/17 03:54 AM
                                benchmarks...Doug S2019/05/17 10:52 AM
                                  because per-core perf has stagnatedchester lam2019/05/17 12:55 PM
                                    because per-core perf has stagnatedNathan2019/05/17 01:54 PM
                                      because per-core perf has stagnatedAdrian2019/05/17 09:39 PM
                                        because per-core perf has stagnatedchester lam2019/05/19 05:32 PM
                                          because per-core perf has stagnatedAdrian2019/05/19 08:09 PM
                                            because per-core perf has stagnatedFoo_2019/05/19 11:58 PM
                                              because per-core perf has stagnatedMichael S2019/05/20 12:48 AM
                                                because per-core perf has stagnatedAdrian2019/05/20 02:12 AM
                                                  because per-core perf has stagnatedMichael S2019/05/20 03:23 AM
                                                    because per-core perf has stagnatedMichael S2019/05/20 06:07 AM
                                                  because per-core perf has stagnatedAdrian2019/05/20 03:28 AM
                                                    because per-core perf has stagnatedMichael S2019/05/20 06:15 AM
                                                  because per-core perf has stagnatednone2019/05/20 03:41 AM
                      benchmarks...Maynard Handley2019/05/16 03:35 PM
                        benchmarks...dmcq2019/05/20 07:15 AM
                    benchmarks...Maxwell2019/05/16 09:47 PM
            Sh*** is Sh** foreverAnon2019/05/15 08:43 AM
    Intel's roadmapDoug S2019/05/13 12:24 PM
      Intel's roadmapwumpus2019/05/14 06:52 AM
      Intel's roadmapAlberto2019/05/15 07:10 AM
Reply to this Topic
Name:
Email:
Topic:
Body: No Text
How do you spell green?