Merge pull request !984 from Tinazhang/hwc2chw

Merge pull request !960 from EricZ/grayscale_fix

Merge pull request !507 from ZiruiWu/batch_with_padding

Merge pull request !951 from guozhijian/fix_read_by_columns

support for 1 specific dimension to be None, added validator

fix various CI complains

another round of CI fixes

ci

refactor parts of the code

code refactor

ci fix

comments added, fix bugs

address review comments

address review comments

review cmts

added simple perf test script

update pad code

perf imprv

Merge pull request !969 from liyong126/fix_mindrecord_pk_sampler

Merge pull request !935 from zhangbuxue/develop_scatter_max_op_and_dock_ge

Merge pull request !957 from jiangjinsheng/space_to_batch

Merge pull request !859 from Xiaoda/support-inferring-phase-parallel-strategy-searching

Merge pull request !959 from liuxiao/ops-for-VM

Merge pull request !637 from ghzl/learning-rate-make-group-mode

Merge pull request !840 from jinyaohui/conv2dtranspose

Merge pull request !904 from JichenZhao/groupn

Merge pull request !929 from cathwong/ckw_dataset_ut_cleanup

Comparison example

Added md5 and comparison example for py_transforms

Added md5 check for images

Merge pull request !909 from EricZ/test_random

Merge pull request !837 from chenzupeng/master

Added testcase to show that c image aug don't use seed properly

Added passing test cases

Added working testcases for using seed

Added additional test cases to show seed use

Added test case for seed

Merge pull request !857 from yao_yf/strategy_ckpt_key_to_use_param_name

SparseApplyAdagrad example format

PReLU and grad state 1-d not supported

atan2 bprop dx dy revert to original shapes

Merge pull request !849 from vlne-v1/I1FQ76-wrong-format-of-boardcast-output-when-multi-output

Merge pull request !871 from ms_yan/take_operator

Merge pull request !882 from zhangbuxue/fix_bprop_for_floor_mod

Merge pull request !875 from AdelShafiei/ua_py