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Device optimized for interactive usage; performance could be sacrificed???

macleanmaclean Posts: 2,438
in Technical Help (nuts n bolts)

I see this message in the DS 4.8 log file for every render, and I have no idea what it means.

Iray INFO - module:category(IRAY:RENDER):   1.0   IRAY   rend info : Rendering...
Iray INFO - module:category(IRAY:RENDER):   1.3   IRAY   rend info : CPU (7 threads): Scene processed in 0.054s
Iray INFO - module:category(IRAY:RENDER):   1.3   IRAY   rend info : CPU (7 threads): Allocated 15 MB for frame buffer
Iray INFO - module:category(IRAY:RENDER):   1.2   IRAY   rend info : CUDA device 0 (GeForce GTX 970): Scene processed in 0.115s
Iray INFO - module:category(IRAY:RENDER):   1.2   IRAY   rend info : CUDA device 0 (GeForce GTX 970): Allocated 15 MB for frame buffer
Iray INFO - module:category(IRAY:RENDER):   1.2   IRAY   rend info : CUDA device 0 (GeForce GTX 970): Allocated 804 MB of work space (1024k active samples)
Iray INFO - module:category(IRAY:RENDER):   1.2   IRAY   rend info : CUDA device 0 (GeForce GTX 970): Device optimized for interactive usage; performance could be sacrificed
Iray INFO - module:category(IRAY:RENDER):   1.0   IRAY   rend info : Received update to 00001 iterations after 0.667s.

I have a GTX 970 and in Render Settings> Advanced I have Photoreal> CPU / GeForce GTX 970 both checked. I also have OptiX Prime Acceleration checked, plus CPU / GeForce GTX 970. Unchecking the Interactive options makes no difference to render time or to the log message.

Anyone have a clue what I should change?

Comments

  • fastbike1fastbike1 Posts: 4,078

    Uncheck CPU and Optix and give it a try. I have found both to be inconsistent iin their effect. Someitimes a little faster, ofen a fiar bit slower.

    Nothing to lose.

  • macleanmaclean Posts: 2,438

    Thanks for the reply. I already did that and still got the same log message.

  • FishtalesFishtales Posts: 6,161

    Might be something in the Nvidia card settings.

  • macleanmaclean Posts: 2,438
    Fishtales said:

    Might be something in the Nvidia card settings.

    That was my first thought, but I haven't touched the Nvidia Control panel at all. Everything is set the way it was on install. And I wouldn't know what to change anyway.

  • FishtalesFishtales Posts: 6,161

    What about the computer settings? Are they set for best performance, power saving or something else? Perhaps that is just for laptops though smiley

  • macleanmaclean Posts: 2,438

    You mean the Windows settings? I have a High Peformance plan set in windows.

    In the Nvidia control panel, it's set to 'Let 3d application decide'

  • FishtalesFishtales Posts: 6,161
    edited July 2015

    I found this site with Nvidia settings that might be useful. My Nvidia card is on my main computer but I haven't been into the settings for a long time and it is a very old card. I'm sure at one time I had different settings for using different programs but I'm not sure. I can't look because I am not at home ATM.

    http://forums.redbana.com/forum/audition/audition-discussions/technical-support/2967838-guide-nvidia-performance-quality-settings-2015-edition

    Post edited by Fishtales on
  • macleanmaclean Posts: 2,438

    Thanks for that link. I'll try some tests.

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