Issue about Multi-GPU training

[RuizhouLiu]

Hi there, I was stuck with an issue that training mask dino model on multiple gpus is too slow.

I train the mask dino on my own dataset, but the speed is too slow on multi-gpus than single-gpu, I don't know why. Is there any solutions?

[urban-drummer]

需要设置成ddp模式并为它指定合适的参数

[EunNamCho]

Did you solve it?