text: Title: CUDA out of memory.
  Body: ```bash
  [jose@archlinux Real-ESRGAN]$ python inference_realesrgan.py -n RealESRGAN_x4plus -i input.jpg --outscale 3.5 --face_enhance -o output.png -t 0
  Testing 0 input
  Error CUDA out of memory. Tried to allocate 1.34 GiB (GPU 0; 3.94 GiB total capacity; 2.23 GiB already allocated; 479.00 MiB free; 2.38 GiB reserved in total by PyTorch) If reserved memory is >> allocated memory try setting max_split_size_mb to avoid fragmentation.  See documentation for Memory Management and PYTORCH_CUDA_ALLOC_CONF
  If you encounter CUDA out of memory, try to set --tile with a smaller number.```
  
  Not sure why my gpu is just with 480mb free, it has 4GB of VRAM and I ran it with --tile 0.
  