帮我解决以下错误Traceback (most recent call last): File "train.py", line 41, in <module> loss = model.loss_fn(true_y, pred_y, input_mask) File "/home/22wd/pretrained_bert_models/REL/model.py", line 104, in loss_fn calc_loss(pred_obj_head, true_obj_head, mask) + \ File "/home/22wd/pretrained_bert_models/REL/model.py", line 88, in calc_loss weight = torch.where(true > 0, torch.tensor(CLS_WEIGHT_COEF[1]), torch.tensor(CLS_WEIGHT_COEF[0]) ) # 对0降权 RuntimeError: Expected condition, x and y to be on the same device, but condition is on cuda:0 and x and y are on cpu and cpu respectively
时间: 2024-03-09 20:45:22 浏览: 93
这个错误的原因和之前提到的类似。你需要将 `true` 张量移动到 GPU 上,以便和 `condition` 张量在同一个设备上进行计算。你可以使用以下代码将 `true` 张量移动到 GPU 上:
```
true = true.to(device)
```
其中,`device` 变量是你之前定义的设备变量,可以根据环境自动选择 CPU 或 GPU。将 `true` 张量移动到和 `condition` 张量相同的设备上后,就可以解决这个错误了。
相关问题
帮我解决以下错误Traceback (most recent call last): File "train.py", line 41, in <module> loss = model.loss_fn(true_y, pred_y, input_mask) File "/home/22wd/pretrained_bert_models/REL/model.py", line 104, in loss_fn calc_loss(pred_obj_head, true_obj_head, mask) + \ File "/home/22wd/pretrained_bert_models/REL/model.py", line 88, in calc_loss weight = torch.where(true > 0, torch.tensor(CLS_WEIGHT_COEF[1]), torch.tensor(CLS_WEIGHT_COEF[0]) ) # 对0降权 RuntimeError: Expected condition, x and y to be on the same device, but condition is on cuda:0 and x and y are on cpu and cpu respectively
这个错误是由于你的条件张量 "true > 0" 在 GPU 上,而其他张量 "torch.tensor(CLS_WEIGHT_COEF[1])" 和 "torch.tensor(CLS_WEIGHT_COEF[0])" 在 CPU 上。为了解决这个问题,你需要将条件张量移动到 CPU 上,可以使用 "true.cpu()" 来移动它。你可以修改你的代码如下:
```python
weight = torch.where(true.cpu() > 0, torch.tensor(CLS_WEIGHT_COEF[1]), torch.tensor(CLS_WEIGHT_COEF[0]))
```
这样就可以解决这个错误了。
帮我解决以下错误Traceback (most recent call last): File "train.py", line 42, in <module> loss = model.loss_fn(true_y, pred_y, input_mask) File "/home/22wd/pretrained_bert_models/REL/model.py", line 94, in loss_fn calc_loss(pred_obj_head, true_obj_head, mask) + \ File "/home/22wd/pretrained_bert_models/REL/model.py", line 82, in calc_loss weight = torch.where(true > 0, torch.tensor(CLS_WEIGHT_COEF[1]), torch.tensor(CLS_WEIGHT_COEF[0])) RuntimeError: Expected condition, x and y to be on the same device, but condition is on cuda:0 and x and y are on cpu and cpu respectively
这个错误是因为你的条件参数在 GPU 上,而其它参数在 CPU 上。你需要将条件参数也移到 GPU 上,可以使用 `to()` 方法将其转移到 GPU 上,例如:
```
condition = condition.to(device)
```
其中,`device` 是你的模型所在的设备,可以是 `"cuda:0"` 或者 `"cpu"`。
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