Merge pull request !5933 from ZPaC/master-fix-error-when-pserver-finish-training

Merge pull request !5903 from lvchangquan/master

Merge pull request !5901 from panfengfeng/fix_network_issue

Merge pull request !5938 from EricZ/fix_zoo_api

Merge pull request !5924 from caojian05/ms_master_vgg16_support_imagenet_on_ascend

Merge pull request !5881 from yepei6/mobilenetv2

Merge pull request !5913 from limingqi107/master

Merge pull request !5885 from vlne-v1/add-doc-for-composite-op

Merge pull request !5921 from zyli2020/refine_cmake_find_cuda_cudnn

Merge pull request !5866 from liangzelang/fix_global_step_error

Merge pull request !5806 from xiefangqi/md_delete_setdatasetsize

Merge pull request !5736 from fary86/add_device_specific_config_check

Merge pull request !5749 from amongo/SupportPyantiveMultiGrad

Merge pull request !5893 from fary86/fix_adam_lamb_bug

Merge pull request !5902 from VectorSL/format

Merge pull request !5900 from 徐永飞/master

Merge pull request !5384 from nhussain/api_changes

Merge pull request !5692 from BowenK/pre_ad

2.Optimize worker and server log.
3.Try Catch ps-lite exceptions.

Merge pull request !5891 from kisnwang/async-run-graph

Merge pull request !5917 from ZPaC/master

Merge pull request !5791 from ZiruiWu/lookup_add_type

ci

add test case

address some of the review cmts

address review cmts

change ImagefolderDV2 name

change ds.transforms.vision to ds.vision

change batch api to match map api more closely

compose op changes

test_pylint

remove compose op from vision, move to transform module, refactor map and batch to use column_order

Merge pull request !5789 from XunDeng/pp_issue_branch

Merge pull request !5897 from liuyang/model_eval

Merge pull request !5884 from shenwei41/sw_master

Merge pull request !5895 from chenweifeng/maximum-fix

Merge pull request !5904 from zhaozhenlong/cloud/issue/image_gradient_h_1

Merge pull request !5790 from danishnxt/GPU_three

Merge pull request !5690 from JonathanY/rcnn

Merge pull request !5894 from Simson/push-to-opensource