Is there anyone who knows how to get NVLINK working with the Octane Render Node Daemon?
It(Nvlink Peers) works fine in Standalone and in Cinema 4D, but the Node Daemon does not recognize it.
Is there an additional option that needs to be added to the batch file?
C4D Master RTX3090 x 2 (Nvlink Ok) --> Daemon Slave RTX3090 x 2(Nvlink Failed)
NVLINK with Node Daemon (DXGI adapter not initialized)
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eyeonestudio
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C4D R2025 / Win11 / AMD TR WX Series / 256Gb RAM / RTX3090 / 100GbE
Hi,
We have seen this before and are currently working with NVIDIA on a solution since there seems to be an issue with the driver causing this error to be displayed. We are hoping for a driver update to solve this issue.
That being said NVLINK should still be enabled and working despite this error being displayed. If it doesn’t for you please let us know since we might need to investigate further.
Thank you
We have seen this before and are currently working with NVIDIA on a solution since there seems to be an issue with the driver causing this error to be displayed. We are hoping for a driver update to solve this issue.
That being said NVLINK should still be enabled and working despite this error being displayed. If it doesn’t for you please let us know since we might need to investigate further.
Thank you
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eyeonestudio
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I tested the Nvidia Studio Driver version 576.02 and several earlier versions.
The Daemon (with NVLINK enabled) works only when the scene fits within a single GPU’s VRAM (about 20GB in this case).
I expected the Daemon to handle scenes larger than 20GB using NVLINK, but when the scene exceeds that limit, only the Master C4D works correctly.
The Daemon (with NVLINK enabled) works only when the scene fits within a single GPU’s VRAM (about 20GB in this case).
I expected the Daemon to handle scenes larger than 20GB using NVLINK, but when the scene exceeds that limit, only the Master C4D works correctly.
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C4D R2025 / Win11 / AMD TR WX Series / 256Gb RAM / RTX3090 / 100GbE
Sorry, the image did not load the first time, now I see what you mean.
This error can throw memory management a bit out of whack and cause errors like the one you see in situations of low memory constraints, which used also to happen in older versions of Octane. I am not sure why this is only happening with the network node though, but my guess is that somehow the scene manages to fit in VRAM. Also note that OptiX acceleration structures cannot take advantage of NVLink currently due to a limitation in the API, meaning one copy per device is required.
We hope we can get a quick resolution and will let you know once a new driver fixing this issue is available.
This error can throw memory management a bit out of whack and cause errors like the one you see in situations of low memory constraints, which used also to happen in older versions of Octane. I am not sure why this is only happening with the network node though, but my guess is that somehow the scene manages to fit in VRAM. Also note that OptiX acceleration structures cannot take advantage of NVLink currently due to a limitation in the API, meaning one copy per device is required.
We hope we can get a quick resolution and will let you know once a new driver fixing this issue is available.
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eyeonestudio
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Rendering the sequence through the Picture Viewer.
It seems that NVLINK is not working.
This scene occupies 30GB of VRAM, but only the first frame is rendered, and then it stops without progressing.
It seems to work properly only in the Live Viewer.
It seems that NVLINK is not working.
This scene occupies 30GB of VRAM, but only the first frame is rendered, and then it stops without progressing.
It seems to work properly only in the Live Viewer.
C4D R2025 / Win11 / AMD TR WX Series / 256Gb RAM / RTX3090 / 100GbE
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eyeonestudio
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- Joined: Fri Oct 18, 2013 5:49 pm
- Location: Seoul, South Korea
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Any update on this issue? (Octane 2025.x)? Thank You...mojave wrote: Wed Apr 30, 2025 8:57 pm Sorry, the image did not load the first time, now I see what you mean.
This error can throw memory management a bit out of whack and cause errors like the one you see in situations of low memory constraints, which used also to happen in older versions of Octane. I am not sure why this is only happening with the network node though, but my guess is that somehow the scene manages to fit in VRAM. Also note that OptiX acceleration structures cannot take advantage of NVLink currently due to a limitation in the API, meaning one copy per device is required.
We hope we can get a quick resolution and will let you know once a new driver fixing this issue is available.
C4D R2025 / Win11 / AMD TR WX Series / 256Gb RAM / RTX3090 / 100GbE
Hi @eyeonestudio,
Based on our investigations this seems to be an issue with the driver, so we have requested support from NVIDIA and are currently working with them on a solution. We hope to have an update fixing this as soon as possible.
In the meantime be aware this will in general not affect your renders except in situations of low memory constraints, in which case memory management can be slightly out of whack and cause some large scene compilations to fail.
Based on our investigations this seems to be an issue with the driver, so we have requested support from NVIDIA and are currently working with them on a solution. We hope to have an update fixing this as soon as possible.
In the meantime be aware this will in general not affect your renders except in situations of low memory constraints, in which case memory management can be slightly out of whack and cause some large scene compilations to fail.