CUDA out of memory after loading model

So I know my GPU is close to be out of memory with this training, and that’s why I only use a batch size of two and it seems to work alright.
The problem arises when I first load the existing model using torch.load, and then resume training. When resuming training, it instantly says :

RuntimeError: CUDA out of memory. Tried to allocate 64.00 MiB (GPU 0; 1.96 GiB total capacity; 1.36 GiB already allocated; 46.75 MiB free; 38.25 MiB cached)

I don’t know how to get rid of this error. When using nvidia-smi right after the error, I obtain this :

| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|    0       991      G   /usr/lib/xorg/Xorg                           120MiB |
|    0      1350      G   cinnamon                                      29MiB |
|    0      2878      G   ...incent/anaconda3/envs/newtor/bin/python     2MiB |

So it’s definitely something about loading the model that makes it break. Can you help me out ? Maybe hack it and reset Cuda memory usage after loading the model ? Thanks for helping me out.

del checkpoint

was the solution, though once again i’m not sure why. Cuda magic I guess