IRay not using GPU

Sirius1066

I know there are many other discussions about this topic. I have read many of them and tried out the advice but without any success. I'm hoping someone can help me if I provide specific details about my situation.

i have recently purchased my first Nvidia GPU. I know it's not the best but it's all I can afford. The card is a GTX 1650 Super with 4Gig of VRAM. I know it doesn't take much of a scene to use up 4gig, but I only make very small scenes often rendering 1 or 2 objects at a time and layering in post. I've done a few test renders since getting the card but it doesn't seem like it's using the GPU at all.
 

In trouble shooting I have tried to render very small scenes to ensure that I'm not using all the VRAM, even trying just a sphere primitive sitting on a plane primitive and it still didn't use the GPU. I have been into the Render Settings Advanced tab and made sure my GPU is selected. I have gone into the GPU settings and made sure CUDA cores All is selected for DAZ. I have downloaded the latest drivers for the card from Nvidia.com, trying both the gaming and graphics optimised drivers. I set the view ports in DAZ to wireframe in case that was stealing VRAM. All of which didn't seem to help. So I'm at a loss.

i just made a simple scene with a G3M base figure wearing just the default basic boxer shorts and tried a test render which seemed to render with the CPU yet again. Below is the log for that render. I can't see any memory errors in the log, but I don't understand it fully. Can someone please help.

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2020-10-13 08:57:08.746 Rendering image
2020-10-13 08:57:09.263 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_lashes_1006.jpg", pixel type "Rgb", 2048x2048x1 pixels, 1 miplevel.
2020-10-13 08:57:09.265 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_lashesd_1006.jpg", pixel type "Rgb", 2048x2048x1 pixels, 1 miplevel.
2020-10-13 08:57:09.273 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_arms_1004.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.275 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_armss_1004.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.283 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_armsb_1004.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.286 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_legs_1003.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.293 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_legss_1003.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.296 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_legsb_1003.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.306 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_eyes01_1007.jpg", pixel type "Rgb", 2048x2048x1 pixels, 1 miplevel.
2020-10-13 08:57:09.308 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_eyesb_1007.jpg", pixel type "Rgb", 2048x2048x1 pixels, 1 miplevel.
2020-10-13 08:57:09.316 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_face_1001.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.318 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_faces_1001.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.326 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_faceb_1001.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.334 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_mouth_1005.jpg", pixel type "Rgb", 2048x2048x1 pixels, 1 miplevel.
2020-10-13 08:57:09.341 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_mouthb_1005.jpg", pixel type "Rgb", 2048x2048x1 pixels, 1 miplevel.
2020-10-13 08:57:09.346 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_torso_1002.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.353 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_torsos_1002.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.356 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\raiya\eddie\ryeddie_torsob_1002.jpg", pixel type "Rgb", 4096x4096x1 pixels, 1 miplevel.
2020-10-13 08:57:09.485 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\shox\underwear\boxersspec.jpg", pixel type "Rgb", 4000x4000x1 pixels, 1 miplevel.
2020-10-13 08:57:09.485 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\shox\underwear\5boxers.jpg", pixel type "Rgb", 4000x4000x1 pixels, 1 miplevel.
2020-10-13 08:57:09.493 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "F:\Documents\DAZ 3D\Studio\My Daz Connect Library\data\cloud\1_21630\runtime\textures\shox\underwear\boxersb.jpg", pixel type "Rgb", 4000x4000x1 pixels, 1 miplevel.
2020-10-13 08:57:09.519 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "C:\Daz 3D\Applications\64-bit\DAZ 3D\DAZStudio4\shaders\iray\resources\DTHDR-RuinsB-500.hdr", pixel type "Rgb_fp", 512x256x1 pixels, 1 miplevel.
2020-10-13 08:57:10.050 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating geometry.
2020-10-13 08:57:10.055 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Importing scene graph.
2020-10-13 08:57:10.198 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Auto instancing compression ratio 1.18 (Full instancing compression ratio 1.18)
2020-10-13 08:57:10.198 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Importing geometry for motion time 0
2020-10-13 08:57:10.267 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Geometry import (2 triangle objects with 593k triangles, 0 fiber objects with 0 fibers (0 segments), 2 triangle instances yielding 593k triangles, 0 fiber instances yielding 0 segments) took 0.070s
2020-10-13 08:57:10.272 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating materials.
2020-10-13 08:57:10.294 Iray [INFO] - MATCNV:RENDER ::   1.0   MATCNV rend info : Material instance 'DS_Boxers__MainBoxers_e7b_439' uses MDL JIT compilation.
2020-10-13 08:57:10.296 Iray [INFO] - MATCNV:RENDER ::   1.0   MATCNV rend info : Material instance 'DS_Boxers__BoxersTrim_e7c_452' uses MDL JIT compilation.
2020-10-13 08:57:10.297 Iray [INFO] - MATCNV:RENDER ::   1.0   MATCNV rend info : Material instance 'DS_Boxers__BoxersWaistband_e7d_465' uses MDL JIT compilation.
2020-10-13 08:57:10.305 Iray [INFO] - MATCNV:RENDER ::   1.0   MATCNV rend info : Material instance 'DS_Boxers__Button_e7e_478' uses MDL JIT compilation.
2020-10-13 08:57:10.307 Iray [INFO] - MATCNV:RENDER ::   1.0   MATCNV rend info : Material instance 'DS_Boxers__ButtonThread_e7f_491' uses MDL JIT compilation.
2020-10-13 08:57:10.307 Iray [INFO] - MATCNV:RENDER ::   1.0   MATCNV rend info : found 148 textures, 5 lambdas (2 unique)
2020-10-13 08:57:10.312 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Emitter geometry import (1 light source with 2 triangles, 1 instance) took 0.000s
2020-10-13 08:57:10.317 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating environment.
2020-10-13 08:57:10.327 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating backplate.
2020-10-13 08:57:10.329 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating lens.
2020-10-13 08:57:10.329 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating lights.
2020-10-13 08:57:10.329 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating object flags.
2020-10-13 08:57:10.330 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating caustic portals.
2020-10-13 08:57:10.335 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating decals.
2020-10-13 08:57:10.337 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Allocating 1-layer frame buffer
2020-10-13 08:57:10.337 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Using batch scheduling, caustic sampler disabled
2020-10-13 08:57:10.337 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Initializing local rendering.
2020-10-13 08:57:10.339 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : CPU: using 3 cores for rendering
2020-10-13 08:57:10.346 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Rendering with 2 device(s):
2020-10-13 08:57:10.346 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : CUDA device 0 (GeForce GTX 1650 SUPER)
2020-10-13 08:57:10.346 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : CPU
2020-10-13 08:57:10.346 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Rendering...
2020-10-13 08:57:10.346 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend progr: CUDA device 0 (GeForce GTX 1650 SUPER): Processing scene...
2020-10-13 08:57:10.350 Iray [INFO] - IRAY:RENDER ::   1.3   IRAY   rend progr: CPU: Processing scene...
2020-10-13 08:57:10.351 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : Initializing Embree
2020-10-13 08:57:10.372 Iray [VERBOSE] - IRAY:RENDER ::   1.2   IRAY   rend stat : Geometry memory consumption: 15.055 MiB (device 0), 0.000 B (host)
2020-10-13 08:57:10.372 Iray [INFO] - IRAY:RENDER ::   1.2   IRAY   rend info : Initializing OptiX for CUDA device 0
2020-10-13 08:57:18.729 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : Importing lights for motion time 0
2020-10-13 08:57:18.736 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : Initializing light hierarchy.
2020-10-13 08:57:18.737 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : Light hierarchy initialization took 0.001s
2020-10-13 08:57:18.794 Iray [VERBOSE] - IRAY:RENDER ::   1.2   IRAY   rend stat : Texture memory consumption: 163.323 MiB for 22 bitmaps (device 0)
2020-10-13 08:57:18.795 Iray [VERBOSE] - IRAY:RENDER ::   1.2   IRAY   rend stat : Lights memory consumption: 948.000 B (device 0)
2020-10-13 08:57:18.801 Iray [VERBOSE] - IRAY:RENDER ::   1.2   IRAY   rend stat : Material measurement memory consumption: 0.000 B (GPU)
2020-10-13 08:57:18.802 Iray [VERBOSE] - IRAY:RENDER ::   1.4   IRAY   rend stat : Native CPU code generated in 0.058s
2020-10-13 08:57:18.855 Iray [VERBOSE] - IRAY:RENDER ::   1.2   IRAY   rend stat : PTX code (27.328 KiB) for SM 7.5 generated in 0.053s
2020-10-13 08:57:18.855 Iray [VERBOSE] - IRAY:RENDER ::   1.2   IRAY   rend stat : Materials memory consumption: 104.988 KiB (GPU)
2020-10-13 08:57:18.934 Iray [INFO] - IRAY:RENDER ::   1.3   IRAY   rend info : CPU: Scene processed in 8.583s
2020-10-13 08:57:18.935 Iray [INFO] - IRAY:RENDER ::   1.3   IRAY   rend info : CPU: Allocated 2.820 MiB for frame buffer
2020-10-13 08:57:18.969 Iray [INFO] - IRAY:RENDER ::   1.2   IRAY   rend info : JIT-linking wavefront kernel in 0.033s
2020-10-13 08:57:18.971 Iray [INFO] - IRAY:RENDER ::   1.2   IRAY   rend info : JIT-linking mega kernel in 0.002s
2020-10-13 08:57:18.971 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : CUDA device 0 (GeForce GTX 1650 SUPER): Scene processed in 8.621s
2020-10-13 08:57:18.980 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : CUDA device 0 (GeForce GTX 1650 SUPER): Allocated 2.820 MiB for frame buffer
2020-10-13 08:57:18.980 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : CUDA device 0 (GeForce GTX 1650 SUPER): Allocated 1.011 GiB of work space (1227k active samples in 0.000s)
2020-10-13 08:57:18.980 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : CUDA device 0 (GeForce GTX 1650 SUPER): Used for display, optimizing for interactive usage (performance could be sacrificed)
2020-10-13 08:57:19.095 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : Allocating 1-layer frame buffer
2020-10-13 08:57:19.161 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00001 iterations after 8.815s.
2020-10-13 08:57:19.205 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00002 iterations after 8.859s.
2020-10-13 08:57:19.250 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00003 iterations after 8.904s.
2020-10-13 08:57:19.296 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00005 iterations after 8.949s.
2020-10-13 08:57:19.422 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00008 iterations after 9.075s.
2020-10-13 08:57:19.549 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00011 iterations after 9.202s.
2020-10-13 08:57:19.562 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00012 iterations after 9.215s.
2020-10-13 08:57:19.689 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00016 iterations after 9.343s.
2020-10-13 08:57:19.821 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00020 iterations after 9.474s.
2020-10-13 08:57:19.879 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00021 iterations after 9.532s.
2020-10-13 08:57:20.019 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00026 iterations after 9.673s.
2020-10-13 08:57:20.175 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: 72.36% of image converged
2020-10-13 08:57:20.175 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00031 iterations after 9.829s.
2020-10-13 08:57:20.209 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00032 iterations after 9.863s.
2020-10-13 08:57:20.363 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00037 iterations after 10.017s.
2020-10-13 08:57:20.518 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00038 iterations after 10.172s.
2020-10-13 08:57:20.662 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00048 iterations after 10.316s.
2020-10-13 08:57:21.136 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00050 iterations after 10.789s.
2020-10-13 08:57:21.190 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: 77.46% of image converged
2020-10-13 08:57:21.190 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00070 iterations after 10.844s.
2020-10-13 08:57:21.984 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: 79.45% of image converged
2020-10-13 08:57:21.984 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00104 iterations after 11.638s.
2020-10-13 08:57:22.100 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00107 iterations after 11.754s.
2020-10-13 08:57:22.836 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: 82.34% of image converged
2020-10-13 08:57:22.836 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00145 iterations after 12.489s.
2020-10-13 08:57:23.045 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00148 iterations after 12.698s.
2020-10-13 08:57:23.784 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: 85.35% of image converged
2020-10-13 08:57:23.798 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00188 iterations after 13.452s.
2020-10-13 08:57:23.970 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00191 iterations after 13.624s.
2020-10-13 08:57:24.704 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: 88.05% of image converged
2020-10-13 08:57:24.721 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00233 iterations after 14.374s.
2020-10-13 08:57:24.895 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00236 iterations after 14.549s.
2020-10-13 08:57:25.614 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: 89.71% of image converged
2020-10-13 08:57:25.614 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00279 iterations after 15.268s.
2020-10-13 08:57:25.841 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00282 iterations after 15.495s.
2020-10-13 08:57:26.681 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: 91.66% of image converged
2020-10-13 08:57:26.681 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00327 iterations after 16.336s.
2020-10-13 08:57:26.801 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00330 iterations after 16.455s.
2020-10-13 08:57:27.637 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: 93.40% of image converged
2020-10-13 08:57:27.637 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00373 iterations after 17.290s.
2020-10-13 08:57:27.770 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00376 iterations after 17.423s.
2020-10-13 08:57:28.602 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: 94.46% of image converged
2020-10-13 08:57:28.623 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00420 iterations after 18.277s.
2020-10-13 08:57:28.722 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00423 iterations after 18.376s.
2020-10-13 08:57:29.553 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: 95.57% of image converged
2020-10-13 08:57:29.553 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00467 iterations after 19.207s.
2020-10-13 08:57:29.581 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Convergence threshold reached.
2020-10-13 08:57:30.434 Saved image: C:\Users\User\AppData\Roaming\DAZ 3D\Studio4\temp\render\r.png
2020-10-13 08:57:30.438 Finished Rendering
2020-10-13 08:57:30.495 Total Rendering Time: 21.85 seconds
2020-10-13 08:57:30.498 Loaded image r.png
2020-10-13 08:57:30.507 Saved image: C:\Users\User\AppData\Roaming\DAZ 3D\Studio4\temp\RenderAlbumTmp\Render 3.jpg
2020-10-13 08:57:33.854 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Device statistics:
2020-10-13 08:57:33.855 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : CUDA device 0 (GeForce GTX 1650 SUPER): 481 iterations, 8.741s init, 11.306s render
2020-10-13 08:57:33.862 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : CPU: 34 iterations, 8.591s init, 10.714s render

********

Please help.

Sirius1066

I should also point out I've test the GPU with other apps/games and it works without any issues.

kenshaw011267

According to that log it did use the GPU.

Sirius1066

kenshaw011267 said:

According to that log it did use the GPU.

Really? It says 'CPU: Processing scene...'

I really am a newbie at this stuff. Could you please point out how I can tell? I was monitoring my GPU during the render and it did seem to do anyting where the CPU was 100% used. During the render the dialogue box said 'native cpu code generated".

Sorry about my lack of knowledge. 

jbdiminnie

Uncheck the CPU in your render settings tab (go to Render Settings and select the Advanced tab and then make sure only your GPU is selected)--the scene was attempting to use both your GPU and CPU for the render, which slows things down.  Note that most of the iterations (481) were rendered by the GPU (see the last 2 lines of your log file), but 34 iterations were done on the CPU.  When you allow both CPU and GPU to be used, IRAY tries to use both devices and then merge the iterations together.  If one device starts lagging behind (usually the CPU), it gets dropped and then IRAY only uses the faster device for that iteration, but it still waits for the slower device.  Waiting on a slower device slows down your render times.  Note that the GPU ran 481 iterations in 11.3 seconds (or 42.5 iterations/second) while the CPU ran 34 iterations in 10.7 seconds (or 3.2 iterations/second), so your GPU for this scene is 13x faster than your CPU.  As long as your scenes take up less than 4 GB VRAM, you should be fine with your new GPU and see your render times drop significantly from your previous system.

Sirius1066

jbdiminnie said:

Uncheck the CPU in your render settings tab (go to Render Settings and select the Advanced tab and then make sure only your GPU is selected)--the scene was attempting to use both your GPU and CPU for the render, which slows things down.  Note that most of the iterations (481) were rendered by the GPU (see the last 2 lines of your log file), but 34 iterations were done on the CPU.  When you allow both CPU and GPU to be used, IRAY tries to use both devices and then merge the iterations together.  If one device starts lagging behind (usually the CPU), it gets dropped and then IRAY only uses the faster device for that iteration, but it still waits for the slower device.  Waiting on a slower device slows down your render times.  Note that the GPU ran 481 iterations in 11.3 seconds (or 42.5 iterations/second) while the CPU ran 34 iterations in 10.7 seconds (or 3.2 iterations/second), so your GPU for this scene is 13x faster than your CPU.  As long as your scenes take up less than 4 GB VRAM, you should be fine with your new GPU and see your render times drop significantly from your previous system.

Thank you very much. I understand that now.