Arnold GPU for Cinema 4D crashing

[fieldofgrasss]

Hi, I just got Arnold but i can't seem to get the GPU mode to work. Every time I start the IPR it freezes and says render failed. I have looked at the log and there are different error messages coming up and I can't make much sense of them. I can't find anything else in the forums or online that has helped yet. It works fine in CPU mode but as soon as GPU mode is on it crashes. This also happens in a simple scene with just a cube and a quad light. I hope someone can help. Thanks

Setup:

2 x 2080Ti

32GB RAM

Threadripper 2950X 16 Core

Here are the log messages:

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Arnold IPR started at Thu Nov 12 09:27:05 2020

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[c4dtoa] 00:00:05 3896MB ERROR | [gpu] an error happened during rendering : Unknown error (Details: Function "_rtContextLaunch2D" caught exception: Encountered a CUDA error: cudaDriver().CuEventSynchronize( m_event ) returned (700): Illegal address, file: <internal>, line: 0)

[c4dtoa] 00:00:22 3898MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:22 3912MB WARNING | Aborted by user: received abort signal

[c4dtoa] 00:00:23 3911MB ERROR | [c4dtoa] Failed to end render (error code: 9)

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Arnold IPR started at Thu Nov 12 09:29:12 2020

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[c4dtoa] 00:00:00 3756MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:01:45 3731MB ERROR | [c4dtoa] Failed to end render (error code: 9)

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Arnold IPR started at Thu Nov 12 09:34:38 2020

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[c4dtoa] 00:00:00 3694MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:04 3713MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:04 3727MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:04 3740MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:04 3753MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:04 3766MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:04 3779MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:04 3793MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:04 3806MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:04 3819MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:04 3832MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:06 3846MB ERROR | [c4dtoa] Failed to end render (error code: 9)

==============================================================================

Arnold IPR started at Thu Nov 12 09:36:20 2020

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[c4dtoa] 00:00:00 3853MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application

[c4dtoa] 00:00:04 3855MB ERROR | [c4dtoa] Failed to end render (error code: 9)

[Stephen.Blair]

What versions of CINEMA 4D and C4DtoA? Can you post a full Arnold log, or at least the header?

[fieldofgrasss]

Thanks for the quick response! Where can I find the full log? I'm using Cinema 4D R21.115 and Arnold 3.2.0.1

[Stephen.Blair]

@
Here's how to get the log:
https://docs.arnoldrenderer.com/x/CwFeAg

Set the verbosity level to Info

[fieldofgrasss]

Apologies for the delay. I had to get something rendered in time for a project so opted for the CPU mode in the time being. Here is the error log. The first attempt was trying to render my project which is quite a heavy scene with volume displacement, the second attempt was just a scene with a cube and quad ight.

==============================================================================
Arnold IPR started at Fri Nov 13 01:04:03 2020
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[c4dtoa] 00:00:00 4058MB | log started Fri Nov 13 01:04:03 2020
[c4dtoa] 00:00:00 4058MB | Arnold 6.1.0.0 [250260fb] windows clang-10.0.1 oiio-2.2.1 osl-1.11.6 vdb-4.0.0 clm-1.1.1.118 rlm-12.4.2 optix-6.6.0 2020/10/27 10:53:09
[c4dtoa] 00:00:00 4058MB | running on JacksPC, pid=20124
[c4dtoa] 00:00:00 4058MB | 1 x AMD Ryzen Threadripper 2950X 16-Core Processor (16 cores, 32 logical) with 32638MB
[c4dtoa] 00:00:00 4058MB | NVIDIA driver version 457.30 (Optix 60700)
[c4dtoa] 00:00:00 4058MB | GPU 0: GeForce RTX 2080 Ti @ 1545MHz (compute 7.5) with 11264MB (8204MB available) (NVLink:0)
[c4dtoa] 00:00:00 4058MB | GPU 1: GeForce RTX 2080 Ti @ 1545MHz (compute 7.5) with 11264MB (7250MB available) (NVLink:0)
[c4dtoa] 00:00:00 4058MB | Windows 8 (version 6.2, build 9200)
[c4dtoa] 00:00:00 4058MB | soft limit for open files is set at 2048
[c4dtoa] 00:00:00 4058MB |
[c4dtoa] 00:00:00 4059MB | loading plugins from C:\Program Files\Maxon Cinema 4D R21\plugins\C4DtoA\arnold\bin\..\plugins ...
[c4dtoa] 00:00:00 4059MB | alembic_proc.dll: alembic uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4059MB | cryptomatte.dll: cryptomatte uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4059MB | cryptomatte.dll: cryptomatte_filter uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4059MB | cryptomatte.dll: cryptomatte_manifest_driver uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4110MB | usd_proc.dll: usd uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4110MB | loaded 5 plugins from 3 lib(s) in 0:00.10
[c4dtoa] 00:00:00 4110MB | loading plugins from C:\Program Files\Maxon Cinema 4D R21\plugins\C4DtoA\procedurals ...
[c4dtoa] 00:00:00 4110MB | volume_tfd.dll: volume_tfd uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4110MB | volume_voxel_field.dll: volume_voxel_field uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4110MB | loaded 2 plugins from 2 lib(s) in 0:00.00
[c4dtoa] 00:00:00 4110MB | loading plugins from C:\Program Files\Maxon Cinema 4D R21\plugins\C4DtoA\shaders ...
[c4dtoa] 00:00:00 4111MB | c4dtoa_shaders.dll: mesh_light_material uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4111MB | c4dtoa_shaders.dll: normal_displacement uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4111MB | c4dtoa_shaders.dll: vector_displacement uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4111MB | c4dtoa_shaders.dll: c4d_vertex_map uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4111MB | c4dtoa_shaders.dll: xparticles uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4111MB | c4dtoa_shaders.dll: image_plane uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4111MB | c4dtoa_shaders.dll: layer_color uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4111MB | c4dtoa_shaders.dll: layer uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4111MB | c4dtoa_shaders.dll: xp_gaseous uses Arnold 6.1.0.0
[c4dtoa] 00:00:00 4111MB | loaded 9 plugins from 1 lib(s) in 0:00.00
[c4dtoa] 00:00:00 4202MB |
[c4dtoa] 00:00:00 4202MB | authorizing with license manager: user ...
[c4dtoa] 00:00:00 4202MB | [user] authorized user "**********" *i've manually censored my username*
[c4dtoa] 00:00:00 4202MB | [user] expiration date: 2020-12-12T09:05:10Z
[c4dtoa] 00:00:00 4202MB |
[c4dtoa] 00:00:00 4133MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application
[c4dtoa] 00:03:34 4111MB ERROR | [c4dtoa] Failed to end render (error code: 9)

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Arnold IPR started at Fri Nov 13 01:07:40 2020
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[c4dtoa] 00:00:00 4133MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application
[c4dtoa] 00:00:06 4147MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application
[c4dtoa] 00:00:06 4161MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application
[c4dtoa] 00:00:06 4174MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application
[c4dtoa] 00:00:06 4187MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application
[c4dtoa] 00:00:06 4200MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application
[c4dtoa] 00:00:06 4213MB ERROR | [gpu] Fatal GPU error occurred, please restart the host application
[c4dtoa] 00:00:11 4225MB ERROR | [c4dtoa] Failed to end render (error code: 9)

[Stephen.Blair]

@

When you see this, you have to restart CINEMA 4D before you can try rendering with the GPU again:

[gpu] Fatal GPU error occurred, please restart the host application 

If you restart CINEMA 4D and do another simple test, is there any other errors reported?

[fieldofgrasss]

My bad! The simple scene seems to be working properly with a fresh restart. I must have tested it after the heavier scene crashed Arnold, without knowing to restart first. I will have to just try and optimise the heavy project. Thanks for your time and helping out.