* fix doc

* fix setup
Co-authored-by: Nwuzhihua <35824027+fuyinno4@users.noreply.github.com>

* add cluster running

* add k8s/paddle cloud

* fix local cluster without gpu

* define engine to train/infer/local_cluster_train/cluster_train

* fix gpu cluster wait

* fix bug for 2ps 2tr
Co-authored-by: Ntangwei <tangwei12@baidu.com>

Co-authored-by: Ntangwei12 <tangwei12@baidu.com>