Multiple GPUs for training about jmodt HOT 3 OPEN

Hey, did you use a single GPU for training? Is there any problem?

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Excuse me，I meet same problems.
No.1 ”UnboundLocalError: local variable 'val_loss_epoch' referenced before assignment“；
For this problem I change some code then the problem fixed，but it comes new problem that same with this.

No.2 “best_model.path” is not update.

对不起，我也遇到同样的问题。
第1条问 “UnboundLocalError:赋值前引用的局部变量‘val_loss_epoch’”；对于这个问题，我更改了一些代码，然后问题得到了解决，但随之而来的是新问题。
第2条 “best_model.path”未更新。

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Hello everyone, how did you solve it? I am also facing the same errors while using 2 gpus with batch size 2: python3 tools/train.py --data_root data/KITTI --ckpt pretrained_model/jmodt.pth --finetune --batch_size 2 --output_dir output --mgpus

from jmodt.