![torch.cuda.DeferredCudaCallError: CUDA call failed lazily at initialization with error: device >= 0 && device < num_gpus - PyTorch Forums torch.cuda.DeferredCudaCallError: CUDA call failed lazily at initialization with error: device >= 0 && device < num_gpus - PyTorch Forums](https://discuss.pytorch.org/uploads/default/original/3X/8/e/8e67a258dea537ba4f03bd6f767cfca181694f7a.png)
torch.cuda.DeferredCudaCallError: CUDA call failed lazily at initialization with error: device >= 0 && device < num_gpus - PyTorch Forums
![python - CUDA. torch.cuda.is_available() returns True but my code returns No CUDA GPUs are available - Stack Overflow python - CUDA. torch.cuda.is_available() returns True but my code returns No CUDA GPUs are available - Stack Overflow](https://i.stack.imgur.com/XVR4V.png)
python - CUDA. torch.cuda.is_available() returns True but my code returns No CUDA GPUs are available - Stack Overflow
![RuntimeError: Attempting to deserialize object on a CUDA device but torch. cuda.is_available() is False - PyTorch Forums RuntimeError: Attempting to deserialize object on a CUDA device but torch. cuda.is_available() is False - PyTorch Forums](https://discuss.pytorch.org/uploads/default/original/3X/3/2/3249fa108b3bdfb05427abedc1696d6df7773084.png)
RuntimeError: Attempting to deserialize object on a CUDA device but torch. cuda.is_available() is False - PyTorch Forums
![python - how to fix the torch.cuda.is_available() False problem without restarting the machine? - Stack Overflow python - how to fix the torch.cuda.is_available() False problem without restarting the machine? - Stack Overflow](https://i.stack.imgur.com/eJ0Fv.png)