GTX 1080 ti and memory requirements

Charlie Judge

Is there a reliable way to check and see if a scene will fit on my GTX 980 ti and if the card is in fact being used for the render.  Sim Tenero's Memory Assistant shows products such as Fern Lake and On the Shore as not fitting on my new GTX 1080 ti card but I understand there may be problems with Memory Assistant. Fern Lake is slow to manipulate in the viewport with Iray preview selected but on On the Shore seems to manipulate fairly well and renders fairly fast (10 to 15 minutes).

linvanchene

Maybe this information helps in your case?:

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1) check the official DAZ Studio log file that you can access

Help -> Troubleshooting -> View Log File...

 to find out how much VRAM is installed as total and how much of that is available for use

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2) check the render log window for information about the render in progress

-> This will tell how much VRAM is used for

Geometry memory consumption

Texture memory consumption

Lights memory consumption

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3) Compare the entry “available memory” from the DAZ Studio log file to the entries Geometry, Texture and Light memory consumption in the render log window.

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for more details compare:

https://www.daz3d.com/forums/discussion/172866/quick-guide-finding-information-about-vram-directly-in-daz-studio

Gator

Something's up, because Fern Lake should fit no sweat...  Or do you have like a half dozen 8K monitors hooked up to it?

I have two monitors, one 4K and one 1920x1080.  I used a total of 5750MB VRAM, that's including what Windows is using for the desktop.  Also preview moved very quick.  There's also your interface settings.  I don't remember all, but check:

Preferences -> Interface tab ->

Hardware Anti-Aliasing: On

Display Optimization: Best

Texture Resources: Performance  (to taste here)

Multi-Threading: On

 

My log file:

2017-06-29 18:38:09.900 Iray VERBOSE - module:category(IRAY:RENDER):   1.8   IRAY   rend progr: CUDA device 1 (TITAN X (Pascal)): Processing scene...
2017-06-29 18:38:09.901 Iray VERBOSE - module:category(IRAY:RENDER):   1.9   IRAY   rend progr: CUDA device 0 (TITAN X (Pascal)): Processing scene...
2017-06-29 18:38:09.999 Iray VERBOSE - module:category(IRAY:RENDER):   1.2   IRAY   rend stat : Geometry memory consumption: 314.376 MiB (device 1), 0 B (host)
2017-06-29 18:38:10.000 Iray VERBOSE - module:category(IRAY:RENDER):   1.3   IRAY   rend stat : Geometry memory consumption: 314.376 MiB (device 0), 0 B (host)
2017-06-29 18:38:18.206 Iray VERBOSE - module:category(IRAY:RENDER):   1.3   IRAY   rend stat : Texture memory consumption: 826.169 MiB (device 0)
2017-06-29 18:38:18.206 Iray INFO - module:category(IRAY:RENDER):   1.2   IRAY   rend info : Initializing light hierarchy.
2017-06-29 18:38:18.207 Iray VERBOSE - module:category(IRAY:RENDER):   1.2   IRAY   rend stat : Texture memory consumption: 826.169 MiB (device 1)
2017-06-29 18:38:18.207 Iray INFO - module:category(IRAY:RENDER):   1.2   IRAY   rend info : Light hierarchy initialization took 0.00s
2017-06-29 18:38:18.208 Iray VERBOSE - module:category(IRAY:RENDER):   1.3   IRAY   rend stat : Lights memory consumption: 948 B (device 0)
2017-06-29 18:38:18.208 Iray VERBOSE - module:category(IRAY:RENDER):   1.2   IRAY   rend stat : Lights memory consumption: 948 B (device 1)
2017-06-29 18:38:18.320 Iray VERBOSE - module:category(IRAY:RENDER):   1.2   IRAY   rend stat : Material measurement memory consumption: 0 B (GPU)
2017-06-29 18:38:18.321 Iray VERBOSE - module:category(IRAY:RENDER):   1.2   IRAY   rend stat : Materials memory consumption: 278.57 KiB (GPU)
2017-06-29 18:38:18.495 Iray INFO - module:category(IRAY:RENDER):   1.9   IRAY   rend info : CUDA device 0 (TITAN X (Pascal)): Scene processed in 8.595s
2017-06-29 18:38:18.501 Iray INFO - module:category(IRAY:RENDER):   1.8   IRAY   rend info : CUDA device 1 (TITAN X (Pascal)): Scene processed in 8.601s
2017-06-29 18:38:18.503 Iray INFO - module:category(IRAY:RENDER):   1.9   IRAY   rend info : CUDA device 0 (TITAN X (Pascal)): Allocated 189.845 MiB for frame buffer
2017-06-29 18:38:18.555 Iray INFO - module:category(IRAY:RENDER):   1.8   IRAY   rend info : CUDA device 1 (TITAN X (Pascal)): Allocated 189.845 MiB for frame buffer
2017-06-29 18:38:18.609 Iray INFO - module:category(IRAY:RENDER):   1.9   IRAY   rend info : CUDA device 0 (TITAN X (Pascal)): Allocated 1.65625 GiB of work space (2048k active samples in 0.106s)

Charlie Judge

Thanks, all. That information was very helpful.

I'm not sure what's up either but now I loaded Fern Lake and looking at the log file there was about 10.6 Gb VRAM available to use and it did in fact render in about 8 minutes using my GTX 1080 ti. Also after rendering it now manipulated easily. So, it appears my new card is working properly and now all is well.

Since it appears that Sim Tinero's Memory assistant doesn't work properly anymore, I'd like to see a better way to get a resonable estimate of the memory requirements for a scene before rendering it.