python-3.x - 错误 : symeig_cpu: the algorithm failed to converge: 6 off-diagonal elements of an intermediate tridiagonal form did not converge to zero

Question

我正在尝试使用 https://github.com/Michaelvll/DeepCCA

经过 20-40 次迭代后，出现以下错误:

RuntimeError: symeig_cpu: the algorithm failed to converge; 6 off-diagonal elements of an intermediate tridiagonal form did not converge to zero.

Error is generated from https://github.com/Michaelvll/DeepCCA/blob/master/objectives.py#L46

[D1, V1] = torch.symeig(SigmaHat11, eigenvectors=True)

系统配置:

• Windows 10。
• python 3.7
• torch 1.2.0

我该如何调试？

Answer 1

我遇到过类似的错误。其根本原因是 Cholesky 分解在未来的某个时刻失败了，因为张量是奇异的。