RuntimeError: Expected object of scalar type Long but got scalar type Int for argument #2 'target' in call to _thnn_nll_loss_forward

[SunforYou0]

Error information：
Using backend: pytorch
Namespace(backup=False, batch_size=128, dataset='YAGO', dropout=0.5, gpu=0, grad_norm=1.0, lr=0.001, max_epochs=20, maxpool=1, model=0, n_hidden=200, num_k=1000, raw=False, rnn_layers=1, seq_len=10, valid=False, valid_every=1)
start training...
D:\MyProjects\PycharmProjects\RE-Net-master\RE-Net-master\utils.py:214: UserWarning: This overload of nonzero is deprecated:
nonzero(Tensor input, *, Tensor out)
Consider using one of the following signatures instead:
nonzero(Tensor input, *, bool as_tuple) (Triggered internally at ..\torch\csrc\utils\python_arg_parser.cpp:766.)
num_non_zero = len(torch.nonzero(s_len))
Epoch 0001 | Loss 8.2041 | time 1205.2197
Epoch 0002 | Loss 3.9099 | time 1204.5098
Epoch 0003 | Loss 3.3134 | time 1195.3128
Epoch 0004 | Loss 3.0940 | time 1160.4676
Epoch 0005 | Loss 2.9595 | time 1142.0331
Epoch 0006 | Loss 2.8683 | time 1171.5391
Epoch 0007 | Loss 2.8052 | time 1289.8578
Epoch 0008 | Loss 2.7475 | time 1266.8438
Epoch 0009 | Loss 2.7018 | time 1227.6809
Epoch 0010 | Loss 2.6605 | time 1246.5386
Traceback (most recent call last):
File "D:\AnacondaEnv\renet\lib\code.py", line 91, in runcode
exec(code, self.locals)
File "", line 1, in
File "D:\ProgramFiles\PyCharm 2020.3.4\plugins\python\helpers\pydev_pydev_bundle\pydev_umd.py", line 198, in runfile
pydev_imports.execfile(filename, global_vars, local_vars) # execute the script
File "D:\ProgramFiles\PyCharm 2020.3.4\plugins\python\helpers\pydev_pydev_imps_pydev_execfile.py", line 18, in execfile
exec(compile(contents+"\n", file, 'exec'), glob, loc)
File "D:/MyProjects/PycharmProjects/RE-Net-master/RE-Net-master/train.py", line 241, in
train(args)
File "D:/MyProjects/PycharmProjects/RE-Net-master/RE-Net-master/train.py", line 172, in train
ranks, loss = model.evaluate_filter(batch_data, (s_hist, s_hist_t), (o_hist, o_hist_t), global_model, total_data)
File "D:\MyProjects\PycharmProjects\RE-Net-master\RE-Net-master\model.py", line 388, in evaluate_filter
loss, sub_pred, ob_pred = self.predict(triplet, s_hist, o_hist, global_model)
File "D:\MyProjects\PycharmProjects\RE-Net-master\RE-Net-master\model.py", line 358, in predict
loss_sub = self.criterion(ob_pred.view(1, -1), o.view(-1))
File "D:\AnacondaEnv\renet\lib\site-packages\torch\nn\modules\module.py", line 722, in _call_impl
result = self.forward(*input, **kwargs)
File "D:\AnacondaEnv\renet\lib\site-packages\torch\nn\modules\loss.py", line 948, in forward
ignore_index=self.ignore_index, reduction=self.reduction)
File "D:\AnacondaEnv\renet\lib\site-packages\torch\nn\functional.py", line 2422, in cross_entropy
return nll_loss(log_softmax(input, 1), target, weight, None, ignore_index, None, reduction)
File "D:\AnacondaEnv\renet\lib\site-packages\torch\nn\functional.py", line 2218, in nll_loss
ret = torch._C._nn.nll_loss(input, target, weight, _Reduction.get_enum(reduction), ignore_index)
RuntimeError: Expected object of scalar type Long but got scalar type Int for argument #2 'target' in call to _thnn_nll_loss_forward

[GreenerZ]

I made the following changes, and got the training result. but i reduced some parameters cuzz my hardware, so got different result to the paper and i am not sure this is corrent fix.

1.change file “model.py” line 358

“loss_sub = self.criterion(ob_pred.view(1, -1), o.view(-1))”
to
"loss_sub = self.criterion(ob_pred.view(1, -1), o.view(-1)).type(torch.cuda.LongTensor)"
same change to line 359

2.after change 1, i got another error called "tensors used as indices must be long, byte or bool tensors". i made another change.

change file "model.py" line 399
"idx = all_triplets[idx, 2]"
to
"idx = all_triplets[idx, 2].type(torch.LongTensor)"
same change to line 412