SAM with prior knowledge graph and customly set hyperparameters always returns "All solutions contain NaNs" assertion error.

[antsaukk]

Hi,

I have done some hp optimization for SAM and it did yield an increase in performance. I wanted to go further and introduced prior knowledge graph (pkg later). However, when I am trying to run SAM with pkg and optimized hp, it always yields AssertionError: "All solutions contains NaNs" and AttributeError: "'Tensor' object has no attribute 'astype'". I have tried to experiment running SAM with different set of hp and pkg and find out that when hp "nruns=1" is set, the errors are arising. I have fed the pck as networkx.DiGraph and networkx.Graph objects -- in both cases it seems to yield the same assertion errors. What could be the reason for such behavior?

Best,
Anton

[diviyank]

Hello,
This issue often arises when the GAN does not converge, I think you may need to tweak the parameters of the GAN to make the optimization more smooth. what are the

Thing is, we are utilizing multiprocessing to optimize the compute-time so the issues raises only when n_jobs=1 or n_runs=1.

The Attribute error is concerning however, do you have the full error trace of that error ?

Thanks for the help,
Best,
Diviyan

[Christopher7622]

hello Diviyan:
When I was inputting parameters, I also encountered this type of problem. The following is my running code and specific error information.


Looking forward to your reply very much!
Best
Christopher

[diviyank]

Hello @Christopher7622 , I think your problem arises with package versions, could you try using the docker image to execute the code?

Best,
Diviyan

[Christopher7622]

Hello @Christopher7622 , I think your problem arises with package versions, could you try using the docker image to execute the code?

Best, Diviyan

thanks a lot,An hour ago, I ran the program again according to the example provided in the official document. Although an error occurred, the program continued to run on the server. What is the reason for this?