text: Title: AssertionError: Batch size 4 is wrong. It must be a multiple of # GPUs 3.
  Body: [python3.6 run.py --input_folder test_images/old_w_scratch_gpu012/ --output_folder old_w_scratch_output-gpu-012/ --GPU 0,1,2](url)
  
  Error comming...
  help please 
  --------------------------------
  File "test_face.py", line 15, in <module>
      opt = TestOptions().parse()
    File "/home/ubuntu/download/Bringing-Old-Photos-Back-to-Life/Face_Enhancement/options/base_options.py", line 293, in parse
      ), "Batch size %d is wrong. It must be a multiple of # GPUs %d." % (opt.batchSize, len(opt.gpu_ids))
  AssertionError: Batch size 4 is wrong. It must be a multiple of # GPUs 3.
  Finish Stage 3 ...
  
  