Merge pull request !114 from 万万没想到/merge_from_r0.1

Merge pull request !109 from leonwanghui/typo-fix

Merge pull request !85 from YuJianfeng/master

Merge pull request !94 from yanzhenxiang2020/fix_mindrecord_ut_long_time

Merge pull request !110 from pengyanjun/fix_dataset_parameter_check_problem

Merge pull request !108 from ms_yan/feed_mode

Merge pull request !91 from chentingting/allreduce_fusion_resnet

Merge pull request !105 from lichen/register_not_equal_distributed_op

Merge pull request !71 from zhangzheng/sparse_acosh_floormod

Merge pull request !28 from geekun/master

Merge pull request !52 from flywind/remove-ge-depend

2. delete default value of stat
3. delete examples
4. some comments error from wangting review
5. modify comments from jinyaohui
6. modify examples from wanghao
7. modify Select operation examples

Merge pull request !96 from lichen/fix_ref_key_bug_for_auto_parallel

Merge pull request !103 from suteng/master

Signed-off-by: leonwanghui <leon.wanghui@huawei.com>

Merge pull request !88 from 万万没想到/I1DBSX

Merge pull request !89 from 万万没想到/I1DBUG

Merge pull request !78 from JoyLvliang/pynative-add-lenet

Merge pull request !79 from laiyongqiang/develop

Merge pull request !62 from amongo/SupportGradOnVarArgs

Merge pull request !84 from ms_yan/epoch_repeat_check

Merge pull request !66 from zhaoting/add-RMSProp

Merge pull request !68 from WeibiaoYu/master

Merge pull request !81 from Xiaoda/change_star_elimination-make_the_non-identity_triangle_eliminatin_exact

Merge pull request !69 from cathwong/ckw_dataset_py_ut1

Merge pull request !83 from kisnwang/add-getptr-for-memreuseutil

use unpack graph primitive instead

add testcases for all grad interface

remove debug log

format code

remove dumpfuncgraph

resolve clang-format

resolve reviews

resolve cpplint

fix review

Merge pull request !72 from 万万没想到/N/A

Merge pull request !77 from amongo/FixBugOfBertPreTraining

Merge pull request !74 from changzherui/master

Merge pull request !14 from zhaozhenlong/op/atan2