About multi-GPU operation

[Z-Z-J]

I seem to find two code errors！
In base_trainer.py
code:
if gpu_id > n_gpu:
msg = "Warning: The number of GPU's configured to use is {}, but only {} are available on this machine.".format(n_gpu_use, n_gpu)

                            problem :   n_gpu_use is not defined

code：
list_ids = list([gpu_id])
if len(device_ids) > 1:
self.model = torch.nn.DataParallel(model, device_ids=device_ids)

                     problem:  len(device_ids)  is  always  1,so cant use multi-GPU

[Shimingyi]

Now I havn't implemented multi-GPU training because this model doesn't require a lot of resourecs. But I will support it to support multi-GPU training, thanks for your feekback!

[anas-zafar]

Hi @Shimingyi, were you have to implement multi-GPU training?