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    Limit vray usage of cores

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    • peter_shawP Offline
      peter_shaw
      last edited by

      Hello everyone,
      I'm using a 4 core CPU. What has been bugging me lateley is the poor responsiveness of SU whilst rendering with vray. maxwell f.ex. has the option to limit the cores it uses.

      i didnt find an option like that in vray, but maybe there's a workaround? ❓

      edit: vray thread priority is already on lowest, doesn't do enough.

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      • thomthomT Offline
        thomthom
        last edited by

        No such option.
        Send a feature request to ChaosGroup.

        Thomas Thomassen β€” SketchUp Monkey & Coding addict
        List of my plugins and link to the CookieWare fund

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        • Z Offline
          zapwizard
          last edited by

          I don't use V-Ray, however once your render starts you should be able to change the affinity of the V-Ray thread in the task manager.

          Press CTRL+Shift+ESC to bring up the task manager.
          Right click on the task and select "Set Affinity" then de-select some of the CPU cores.

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          • peter_shawP Offline
            peter_shaw
            last edited by

            @zapwizard said:

            I don't use V-Ray, however once your render starts you should be able to change the affinity of the V-Ray thread in the task manager.

            Press CTRL+Shift+ESC to bring up the task manager.
            Right click on the task and select "Set Affinity" then de-select some of the CPU cores.

            the problem is that vray doesn't use a seperate thread. it seems to run inside the SU thread. so limiting the cores via affinity limits SU cores as well 😞

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            • thomthomT Offline
              thomthom
              last edited by

              SU uses only 1 core at any time - so that should not be an issue.

              Thomas Thomassen β€” SketchUp Monkey & Coding addict
              List of my plugins and link to the CookieWare fund

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              • peter_shawP Offline
                peter_shaw
                last edited by

                @thomthom said:

                SU uses only 1 core at any time - so that should not be an issue.

                i meant that SU and the vray renderer use the same thread ID. so the windows method of limiting cores won't do anything, if i want more perfomance for modeling in SU while rendering.

                f.ex: i set max cores to 3 of 4 for the SU cpu thread -> vray uses all 3 cores, SU can't use any.

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