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Tom M
Tom M
Joined: 2 Feb 06
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Keith Myers wrote: If you

20 May 2021 20:35:06 UTC
Message 186018 in response to message 186006
(moderation:
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    Keith Myers wrote:

    If you are content with the first generation memory speeds, you can bump up to 16 cores with the 7351 cpu running around $600. Or to 24 cores with the 7401 around $600-800

    If you want faster memory, then you need to jump to Rome cpus like the 16 core 7282 running around $1300-1400 and can run the memory at 3200.

     

    What about a 7401 (slower cpu 2Ghz, faster memory3200 Mhz)?

    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
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    Credit: 18710500409
    RAC: 6342520

    With 1st generation of Epyc,

    20 May 2021 20:57:11 UTC
    Message 186021
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      With 1st generation of Epyc, you are stuck with 2400/2666Mhz memory.  Can't go any faster with the memory than that.

      If you want faster memory you need to move to Rome or Milan. Look at this chart for your choices.

      Epyc Wikichip

       

      Tom M
      Tom M
      Joined: 2 Feb 06
      Posts: 6435
      Credit: 9564725787
      RAC: 8953432

      Keith Myers wrote: With 1st

      21 May 2021 13:33:54 UTC
      Message 186045 in response to message 186021
      (moderation:
        )

        Keith Myers wrote:

        With 1st generation of Epyc, you are stuck with 2400/2666Mhz memory.  Can't go any faster with the memory than that.

        If you want faster memory you need to move to Rome or Milan. Look at this chart for your choices.

        Epyc Wikichip

        I missed that a 7401 is first gen....  :(

        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!

        Ian&Steve C.
        Ian&Steve C.
        Joined: 19 Jan 20
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        the 4th digit denotes the

        21 May 2021 13:46:31 UTC
        Message 186047
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          the 4th digit denotes the generation.

          _________________________________________________________________________

          Tom M
          Tom M
          Joined: 2 Feb 06
          Posts: 6435
          Credit: 9564725787
          RAC: 8953432

          The processing time on GW cpu

          1 Jun 2021 21:39:18 UTC
          Message 186322
          (moderation:
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            The processing time on GW cpu tasks has dropped by nearly 50% (I think) on both my Ryzen 9 box and my Epyc box.

            I am assuming it has to do with the differently named tasks/files I am getting. (h1_0992.65_O2C02Cl5ln0_....)

            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!

            Robert
            Robert
            Joined: 5 Nov 05
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            I've processed about a dozen

            2 Jun 2021 21:11:26 UTC
            Message 186335 in response to message 186322
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              I've processed about a dozen of these  (h1_0992.xx_O2C02Cl5ln0_....) and they seem to be running in about the same time.

              Tom M
              Tom M
              Joined: 2 Feb 06
              Posts: 6435
              Credit: 9564725787
              RAC: 8953432

              Robert wrote: I've processed

              3 Jun 2021 8:38:18 UTC
              Message 186344 in response to message 186335
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                Robert wrote:

                I've processed about a dozen of these  (h1_0992.xx_O2C02Cl5ln0_....) and they seem to be running in about the same time.

                I guess I had some shorties.  Mine have also returned to "the usual" processing speed.

                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: 6435
                Credit: 9564725787
                RAC: 8953432

                I just updated to an EPYC

                20 Jul 2021 14:50:58 UTC
                Message 187425
                (moderation:
                  )

                  I just updated to an EPYC 7401P (24c/48t).

                  In the bios for the CPU it talks about "Determinism" (Auto, Performance, Power).

                  Is anyone setting this different from the Default of Auto?

                  I noticed that my "turbo" CPU speed is down a few hundred MHz from just short of 3 MHz to more like 2.6 MHz.

                  I am wondering if trying the "performance" is likely to actually move my CPU speed up significantly?

                  I am sure it will draw more power :)

                  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!

                  Ian&Steve C.
                  Ian&Steve C.
                  Joined: 19 Jan 20
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                  Credit: 46709522642
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                  set determinism to

                  20 Jul 2021 15:03:35 UTC
                  Message 187426
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                    set determinism to power.

                    and set the cTDP to 170 (default is 155)

                    _________________________________________________________________________

                    Keith Myers
                    Keith Myers
                    Joined: 11 Feb 11
                    Posts: 4963
                    Credit: 18710500409
                    RAC: 6342520

                    You should set Determinism to

                    20 Jul 2021 15:05:26 UTC
                    Message 187427
                    (moderation:
                      )

                      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.

                       

                       

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