Chinese_license_plate_detection_recognition 感谢开源。训练过程遇到one of the variables needed for gradient computation has been modified by an inplace operation

感谢开源。训练过程遇到one of the variables needed for gradient computation has been modified by an inplace operation

Open chunmengcai opened this issue 2 years ago • 5 comments

File "E:\work\code\Car_recognition-master\train.py", line 521, in train(hyp, opt, device, tb_writer, wandb) File "E:\work\code\Car_recognition-master\train.py", line 291, in train loss, loss_items = compute_loss(pred, targets.to(device), model) # loss scaled by batch_size File "E:\work\code\Car_recognition-master\utils\loss.py", line 163, in compute_loss lcls += BCEcls(ps[:, 13:], t) # BCE File "E:\soft1\conda\lib\site-packages\torch\nn\modules\module.py", line 1190, in _call_impl return forward_call(*input, **kwargs) File "E:\soft1\conda\lib\site-packages\torch\nn\modules\loss.py", line 720, in forward return F.binary_cross_entropy_with_logits(input, target, File "E:\soft1\conda\lib\site-packages\torch\nn\functional.py", line 3162, in binary_cross_entropy_with_logits return torch.binary_cross_entropy_with_logits(input, target, weight, pos_weight, reduction_enum) File "E:\soft1\conda\lib\site-packages\torch\fx\traceback.py", line 57, in format_stack return traceback.format_stack() (Triggered internally at C:\actions-runner_work\pytorch\pytorch\builder\windows\pytorch\torch\csrc\autograd\python_anomaly_mode.cpp:119.) Variable.execution_engine.run_backward( # Calls into the C++ engine to run the backward pass 0%| | 0/24 [00:00<?, ?it/s] Traceback (most recent call last): File "E:\work\code\Car_recognition-master\train.py", line 521, in train(hyp, opt, device, tb_writer, wandb) File "E:\work\code\Car_recognition-master\train.py", line 296, in train scaler.scale(loss).backward() File "E:\soft1\conda\lib\site-packages\torch_tensor.py", line 487, in backward torch.autograd.backward( File "E:\soft1\conda\lib\site-packages\torch\autograd_init.py", line 197, in backward Variable._execution_engine.run_backward( # Calls into the C++ engine to run the backward pass RuntimeError: one of the variables needed for gradient computation has been modified by an inplace operation: [torch.FloatTensor [30, 2]], which is output 0 of AsStridedBackward0, is at version 4; expected version 0 instead. Hint: the backtrace further above shows the operation that failed to compute its gradient. The variable in question was changed in there or anywhere later. Good luck!