Generic CPU discussion

Forums › Cruncher's Corner

Tom M
Tom M
Joined: 2 Feb 06
Posts: 6375
Credit: 9409442644
RAC: 17500598

Keith Myers wrote: You

20 Jul 2021 16:06:42 UTC
Message 187434 in response to message 187427
(moderation:
    )

    Keith Myers wrote:

    You should set Determinism to Power or Performance.  cTDP to 170 and PPL Level to 170

    That will allow the cpu to maintain almost full boost clock across all loaded cores.

    Workload Tuning Guide for AMD EPYC™ 7002 Series Processor Based Servers

    Guide is for 7002 series but totally applicable to 7001 series also.

    Can't find a PPL in bios.  Maybe a ver2 only or maybe I need to update my Bios?

    Tom M

    A Proud member of the O.F.A.  (Old Farts Association).  Be well, do good work, and keep in touch.® (Garrison Keillor)  I want some more patience. RIGHT NOW!

    Tom M
    Tom M
    Joined: 2 Feb 06
    Posts: 6375
    Credit: 9409442644
    RAC: 17500598

    Ian&Steve C. wrote: set

    20 Jul 2021 16:08:12 UTC
    Message 187436 in response to message 187426
    (moderation:
      )

      Ian&Steve C. wrote:

      set determinism to power.

      and set the cTDP to 170 (default is 155)

      Will try "Power".  Performance doesn't appear to increase the average top MHz at all.

      Tom M

      A Proud member of the O.F.A.  (Old Farts Association).  Be well, do good work, and keep in touch.® (Garrison Keillor)  I want some more patience. RIGHT NOW!

      Tom M
      Tom M
      Joined: 2 Feb 06
      Posts: 6375
      Credit: 9409442644
      RAC: 17500598

      Tom M wrote: Ian&Steve C.

      20 Jul 2021 16:15:26 UTC
      Message 187437 in response to message 187436
      (moderation:
        )

        Tom M wrote:

        Ian&Steve C. wrote:

        set determinism to power.

        and set the cTDP to 170 (default is 155)

        Will try "Power".  Performance doesn't appear to increase the average top MHz at all.

        Tom M

        Apparently Power did work.  Its higher.

        Tom M

        A Proud member of the O.F.A.  (Old Farts Association).  Be well, do good work, and keep in touch.® (Garrison Keillor)  I want some more patience. RIGHT NOW!

        Tom M
        Tom M
        Joined: 2 Feb 06
        Posts: 6375
        Credit: 9409442644
        RAC: 17500598

        Tom M wrote: Keith Myers

        20 Jul 2021 16:21:06 UTC
        Message 187438 in response to message 187434
        (moderation:
          )

          Tom M wrote:

          Keith Myers wrote:

          You should set Determinism to Power or Performance.  cTDP to 170 and PPL Level to 170

          That will allow the cpu to maintain almost full boost clock across all loaded cores.

          Workload Tuning Guide for AMD EPYC™ 7002 Series Processor Based Servers

          Guide is for 7002 series but totally applicable to 7001 series also.

          Can't find a PPL in bios.  Maybe a ver2 only or maybe I need to update my Bios?

          I have ver P2.60  which apparently is the current version for this MB.

          Yes, the memory is now running at 2666, it may have been at 2400 previously.

          Tom M

          A Proud member of the O.F.A.  (Old Farts Association).  Be well, do good work, and keep in touch.® (Garrison Keillor)  I want some more patience. RIGHT NOW!

          Keith Myers
          Keith Myers
          Joined: 11 Feb 11
          Posts: 4955
          Credit: 18610682562
          RAC: 5691735

          It is in your BIOS.  If not

          20 Jul 2021 17:00:51 UTC
          Message 187447
          (moderation:
            )

            It is in your BIOS.  If not on the cpu page then in the AMD CBS menus

            PPL = Package Power Limit

            Should match the cTDP setting

             

            Tom M
            Tom M
            Joined: 2 Feb 06
            Posts: 6375
            Credit: 9409442644
            RAC: 17500598

            Keith Myers wrote: It is in

            20 Jul 2021 23:12:20 UTC
            Message 187480 in response to message 187447
            (moderation:
              )

              Keith Myers wrote:

              It is in your BIOS.  If not on the cpu page then in the AMD CBS menus

              PPL = Package Power Limit

              Should match the cTDP setting

              My server BIO doesn't have any AMD CBS menus.  I looked. Honest.

              And it started locking up/unresponsive to keyboard.  I have reverted to the baseline settings.  I will try the higher cTDP with the Determinism on AUTO tomorrow.

              Need to confirm its not locking up because of the CPU upgrade.

              Tom M

              A Proud member of the O.F.A.  (Old Farts Association).  Be well, do good work, and keep in touch.® (Garrison Keillor)  I want some more patience. RIGHT NOW!

              Keith Myers
              Keith Myers
              Joined: 11 Feb 11
              Posts: 4955
              Credit: 18610682562
              RAC: 5691735

              I would think it should have

              20 Jul 2021 23:29:30 UTC
              Message 187483
              (moderation:
                )

                I would think it should have it.  My EPYCD8 BIOS is 2.42 and has the same AGESA level as your EPYCD8-2T with BIOS 2.60

                In the same manual as my board. Not unless we picked up the AMD CBS and PBS menus with our beta driver that restored the fan control.

                I don't remember if the standard 2.40 BIOS had those menus or not now.

                 

                Keith Myers
                Keith Myers
                Joined: 11 Feb 11
                Posts: 4955
                Credit: 18610682562
                RAC: 5691735

                What is your cooling solution

                20 Jul 2021 23:30:27 UTC
                Message 187484
                (moderation:
                  )

                  What is your cooling solution for the cpu??

                   

                  Ian&Steve C.
                  Ian&Steve C.
                  Joined: 19 Jan 20
                  Posts: 3927
                  Credit: 45663692642
                  RAC: 64026312

                  Keith Myers wrote:I would

                  21 Jul 2021 0:18:46 UTC
                  Message 187492 in response to message 187483
                  (moderation:
                    )

                    Keith Myers wrote:

                    I would think it should have it.  My EPYCD8 BIOS is 2.42 and has the same AGESA level as your EPYCD8-2T with BIOS 2.60

                    In the same manual as my board. Not unless we picked up the AMD CBS and PBS menus with our beta driver that restored the fan control.

                    I don't remember if the standard 2.40 BIOS had those menus or not now.

                    it's in the 2.40 BIOS and for sure it's in his BIOS too.

                    Tom, it's on the same page as the cTDP setting. literally the same menu.

                    the setting that says “Package Power Limit”. 

                    https://i.imgur.com/SOUs6Lk.jpg

                    _________________________________________________________________________

                    Keith Myers
                    Keith Myers
                    Joined: 11 Feb 11
                    Posts: 4955
                    Credit: 18610682562
                    RAC: 5691735

                    Thanks Ian, I was pretty

                    21 Jul 2021 0:50:40 UTC
                    Message 187496 in response to message 187492
                    (moderation:
                      )

                      Thanks Ian, I was pretty positive it was in the original 2.40 BIOS.

                       

                      Comment viewing options

                      Select your preferred way to display the comments and click "Save settings" to activate your changes.

                      Forums › Cruncher's Corner