An Error while running Classical Pipeline Example given in docs/examples about lambeq

[ianyfan]

Try setting torch.set_default_tensor_type(torch.FloatTensor) or torch.set_default_tensor_type(torch.cuda.FloatTensor) at the start of your script?

[dimkart]

Hello @srinjoyganguly and thanks for reporting this. @ianyfan has already responded what we think might be the problem, let us know if this works for you.

[srinjoyganguly]

Hi @ianyfan thank you so much for the help! I tried using the lines you gave at the start of my script but still getting the same issue. The same error persists. I realized that this line - torch.set_default_tensor_type(torch.cuda.FloatTensor) already existed in my code and I was getting the error. I tried with - torch.set_default_tensor_type(torch.FloatTensor) but the error is still the same. Are there any other ways?

@dimkart you are very welcome! Thank you a lot!

[dimkart]

Hi @srinjoyganguly, can you send us your notebook/code in [email protected] (or post it here), so we can have a better look? It's really difficult to say what is going on just from the error message.

[ianyfan]

Changing the line to

torch.set_default_tensor_type(torch.cuda.DoubleTensor)

should allow the notebook to run, though we are working on a proper fix on the underlying code.

[srinjoyganguly]

Indeed @ianyfan the code works with DoubleTensor! Thank you so much for the help! I look forward to the proper fix in the underlying code! Thanks a lot @ianyfan and @dimkart !

[dimkart]

Thanks for pointing this out @srinjoyganguly. We have updated the notebook to use a double tensor until we fix this in DisCoPy. This issue will be now closed.

[srinjoyganguly]

You are very welcome @dimkart ! I am glad, thanks so much!