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                                            Wei Xiao

AttributeError: module 'torch.linalg' has no attribute 'lu_factor'

This may be the problem of a new version Pytorch. You may try older version of Pytorch (e.g., '1.10.1+cu113', I received a similar warning for this problem that this will...

AttributeError: module 'torch.linalg' has no attribute 'lu_factor'

Q is usually defined as an identity matrix. If there is such an issue with an identity Q, then it might also be the pytorch version problem. '1.10.1+cu113' has no...

AttributeError: module 'torch.linalg' has no attribute 'lu_factor'

Then you need to ensure that the artificially set weight matrix should always make Q positive definite, e.g., with non-negative diagonal items for diagonal Q.