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Intel 12900K Vray render node low CPU usage issue

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  • Intel 12900K Vray render node low CPU usage issue

    Hi,

    I recently installed Intel 12900K CPU on one of Vray (for Maya) render node machines. When I start a render from my main machine I noticed that not all cores are running on 12900K. Turns out only E cores are being utilized while P cores are sitting idle at 0% making render times very inefficient.
    I suspect this is because with the new Intel P/E cores architecture CPU is treating Vray slave service as a background process hence only using E-cores which are very slow for rendering. Is there a way that Vray could force this CPU to use 100% of its cores?

    Currently I am running Process Lasso app to force CPU to use all the cores with Vray, but I would very much like to have this working without using another app.

    I'm using last version of Vray Next and Maya 2018
    Last edited by Alesh; 15-02-2022, 12:46 AM.

  • #2
    Check this thread.
    Aleksandar Hadzhiev | chaos.com
    Chaos Support Representative | contact us

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    • #3
      An update to the linked thread contains an unofficial fix, and the official Chaos stance on the issue.

      https://forums.chaos.com/forum/v-ray...39#post1143539
      Lele
      Trouble Stirrer in RnD @ Chaos
      ----------------------
      emanuele.lecchi@chaos.com

      Disclaimer:
      The views and opinions expressed here are my own and do not represent those of Chaos Group, unless otherwise stated.

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