Skydel 23.5.4 CUDA FFT ERROR Value: 5


We have Skydel installed on a machine running Ubuntu 20.04.6 LTS and have followed the steps listed on the Skydel User Manual to get everything setup. Whenever we try to start a NoneRT simulation or a GPU test we are getting the following error:


We are using an Nvidia RTX 4070 with the recommended Nvidia driver metapackage from nvidia-driver-535 (proprieatary) pictured below and the output of nvidia-smi is also shown below:

Is there an installation step we are missing for getting our system up and simulating? I have also attached a Skydel log file below.


simulator.log (9.7 KB)

Hi grote,

Same answer as in this thread!

We will upgrade CUDA version in the next major release of Skydel. It should be out by the end of September and this issue will be fixed!

Have a good day,

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Good news, @grote !

The CUDA fix will be released sooner than planned. We will be releasing a new Skydel version before the end of this month.

Thanks for your patience!



Where may we obtain the new version of Skydel? I do not see any release notes yet.


Hello @grote ,

All Skydel updates can be accessed from the following link:

Version 23.8 will be released any day now.

Release notes can be found here:

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