Hi, Thanks a million for your help.
I checked it and a part of my result is like this.
    'rnnB.weight_hh_l0':
        '[[ 0.04917971  0.06434657 -0.09789566 ... -0.08545043  0.06401704\n  '
        '-0.0960645 ]\n [ 0.04035911  0.03888848  0.00772235 ...  0.01090766  '
        '0.07309137\n   0.0360844 ]\n [-0.06821513  0.04650425  0.00499327 '
        '...  0.03282529  0.07157829\n  -0.0139528 ]\n ...\n [-0.0370195  '
        '-0.09515273  0.00834717 ... -0.07280935 -0.07355522\n   0.03910803]\n '
        '[-0.05833184  0.0991596   0.02914995 ... -0.06485003 -0.08581042\n   '
        '0.08041064]\n [ 0.05045321 -0.01596119  0.08300199 ...  0.05857178  '
        '0.06642925\n   0.059383  ]]<no grad>',

And after a while, this appeared.
RuntimeError: Boolean value of Tensor with more than one value is ambiguous.
I don’t know why that happens and  which boolean it does mean.