About Train model

[defense81]

I have trained the model many times , but the gap about 3-4% on MOT17 train set is always exist. I train the model in the four gpus env,where base lr 0.01 、steps=(20000,30000) total iters are 35k, and max_size_train is 1200.
I want to know that if the parameter of max_size_train has a great impact on training ? what's more, can you give me some tips about training the model ?
I appreciate your reply to my question. tahnks.

[bingshuai2019]

My initial guess is that the gap may comes from the fact you use "max_size_train == 1200". I haven't tested it with model training on 4 GPUs, and I don't think that should be the major factor for the result discrepancy. It would be helpful if you train with the provided configurations configs/DLA_34_FPN_EMM_MOT17.yaml