Merge pull request !31480 from zetongzhao/reduce_profiler_test_time

Merge pull request !31173 from jiaorui/refactor-stream

Merge pull request !28640 from 爱科学的小松鼠/OpFill

Merge pull request !31398 from guozhijian/fix_code_check

Merge pull request !31408 from yanghaoran/master

Merge pull request !31159 from chenfei_mindspore/master-develop

Merge pull request !31325 from zyli2020/worker_failover_bp

Merge pull request !31268 from zetongzhao/ut_cpp_helper

Merge pull request !31334 from harshvardhangupta/modify_at_config

Merge pull request !31294 from zhuzhongrui/pub_master2

Merge pull request !31302 from chenweifeng/disable-testcase-on-mac

Merge pull request !31063 from TinaMengtingZhang/fix_st_error2

Merge pull request !31321 from hewei/fix_opt_perf

Merge pull request !31164 from huangxinjing/fx_global_norm_error

Merge pull request !30339 from yangwm/randominvert

Merge pull request !30429 from yangwm/autocontrast

Merge pull request !30916 from hanhuifeng/dynamic_nop

Merge pull request !31252 from liuluobin/element_wise_ops

Merge pull request !31304 from wanyiming/fix_st

Merge pull request !31332 from h.farahat/fix_reset

Merge pull request !31137 from zetongzhao/test_skip_first_epoch_sampler

Merge pull request !31092 from zhangbuxue/implement_Conv2dBackkward_and_log_of_pool

Merge pull request !30253 from huanghui/enhance-dump-flag

Merge pull request !31269 from qujianwei/master

Merge pull request !31178 from shenwei41/upgrade_ascend_20220311

Merge pull request !31156 from luoyang/test_centos

2. remove pattern match error as the origin pattern match will find no operator if there is only one parameter

Merge pull request !31227 from yangzhenzhang/adafactor-parallel-skip-handle-reshape

Merge pull request !31211 from h.farahat/pytest_problem