SYMPTOMS
When using GPU accelerated nodes, such as the Kronos node, you may encounter an error message at the top of the Viewer that looks like the following:
CUDA Error: Unknown error code:218ptxas application pxt input, line 9; fatal : Unsupported .version 6.4; current version is ‘6.1’ptxas fatal : Ptx assembly aborted due to errors
The exact numbers in the error may vary.
CAUSE
This error message is caused by not having the CUDA version needed for Nuke to use GPU accelerated nodes, which comes bundled as part of the NVIDIA driver. Nodes which do not have the Use GPU if available knob are not GPU accelerated, so will not encounter this issue.
For the latest information about the current CUDA version and GPU drivers needed, please refer to our Nuke Family tech specs.
RESOLUTION
Updating the driver for your NVIDIA GPU should correct the issue.
Nuke 16.1 requires an NVIDIA GPU with graphics drivers capable of running CUDA SDK 11.8 or above.
Nuke 17.0 requires an NVIDIA GPU with graphics drivers capable of running CUDA SDK 12.8 or above.
A list of the CUDA SDK versions supported by NVIDIA GPUs can be found here: NVIDIA CUDA SDK version
We generally recommend using the latest GPU drivers, and the most recent NVIDIA GPU drivers can be downloaded from the NVIDIA website: NVIDIA Driver Downloads
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