GPU only renders every other frame in an image sequence
Puddles
Posts: 74
I am rendering an animation in Daz 4.12.0.86 (Pro Edition - 64 Bit) in Windows 10. I have a Titan X GPU with the latest Nvidia Drivers (436.30).
Despite having only the GPU selected (and OptiX Prime acceleration deselected) in Render Settings>Advanced, the GPU fails to render every other frame when rendering an image sequence. The CPU takes exponentially longer to render frames (44mins for CPU, 6 mins for GPU - for 200 iterations).
The GPU succesfully renders every odd frame (1st, 3rd, 5th etc.), but the system falls-back to the CPU for every even frame (2nd, 4th, 6th etc.).
The scene is large, GPU shark reports that the GPU is using 9 GB of Ram when rendering, however I have a Titan X GPU with 64 GB of available Ram. The CPU also has 64 GB of available Ram.
Although 'OptiX Prime Acceleration' is un-checked in Render Settings>Advanced, the log shows the following errors during both GPU and CPU rendering:
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2019-09-29 15:24:49.451 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Received update to 00161 iterations after 345.154s.
2019-09-29 15:24:49.474 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(305): Iray [WARNING] - IRAY:RENDER :: 1.0 IRAY rend warn : The 'iray_optix_prime' scene option is no longer supported.
2019-09-29 15:25:08.752 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Received update to 00171 iterations after 364.454s.
2019-09-29 15:25:08.774 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(305): Iray [WARNING] - IRAY:RENDER :: 1.0 IRAY rend warn : The 'iray_optix_prime' scene option is no longer supported.
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When the GPU fails to start rendering a new frame (and falls-back to CPU), the log shows the following additional errors:
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2019-09-29 15:27:03.761 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Rendering with 1 device(s):
2019-09-29 15:27:03.761 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : CUDA device 0 (GeForce GTX TITAN X)
2019-09-29 15:27:03.761 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Rendering...
2019-09-29 15:27:03.762 Iray [VERBOSE] - IRAY:RENDER :: 1.2 IRAY rend progr: CUDA device 0 (GeForce GTX TITAN X): Processing scene...
2019-09-29 15:27:04.250 Iray [INFO] - IRAY:RENDER :: 1.4 IRAY rend info : Initializing OptiX Prime for CUDA device 0
2019-09-29 15:27:04.251 Iray [VERBOSE] - IRAY:RENDER :: 1.4 IRAY rend stat : Geometry memory consumption: 745.17 MiB (device 0), 0 B (host)
2019-09-29 15:27:04.407 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(305): Iray [ERROR] - IRAY:RENDER :: 1.4 IRAY rend error: OptiX Prime error (Device rtpModelUpdate BL): Memory allocation failed (Function "_rtpModelUpdate" caught exception: Encountered a CUDA error: cudaMalloc(&ptr, size) returned (2): out of memory)
2019-09-29 15:27:04.408 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(305): Iray [ERROR] - IRAY:RENDER :: 1.2 IRAY rend error: CUDA device 0 (GeForce GTX TITAN X): Scene setup failed
2019-09-29 15:27:04.408 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(305): Iray [ERROR] - IRAY:RENDER :: 1.2 IRAY rend error: CUDA device 0 (GeForce GTX TITAN X): Device failed while rendering
2019-09-29 15:27:04.408 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(305): Iray [WARNING] - IRAY:RENDER :: 1.2 IRAY rend warn : All available GPUs failed.
2019-09-29 15:27:04.408 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(305): Iray [WARNING] - IRAY:RENDER :: 1.2 IRAY rend warn : No devices activated. Enabling CPU fallback.
2019-09-29 15:27:04.408 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(305): Iray [ERROR] - IRAY:RENDER :: 1.2 IRAY rend error: All workers failed: aborting render
2019-09-29 15:27:04.409 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : CPU: using 12 cores for rendering
2019-09-29 15:27:04.409 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Rendering with 1 device(s):
2019-09-29 15:27:04.410 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : CPU
2019-09-29 15:27:04.410 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Rendering...
2019-09-29 15:27:04.410 Iray [INFO] - IRAY:RENDER :: 1.4 IRAY rend info : Initializing Embree
2019-09-29 15:27:04.410 Iray [VERBOSE] - IRAY:RENDER :: 1.2 IRAY rend progr: CPU: Processing scene...
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Any ideas?
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Comments
Mine started doing this too, did you ever determine the problem?
Charlie