Merge pull request !1232 from YuJianfeng/master

Merge pull request !1233 from wukesong/remove-memreuse

Merge pull request !1201 from JoyLvliang/pynative-release-memory-after-run-finish

Merge pull request !1142 from ZhangQinghua/master

Merge pull request !1241 from gziyan/replace_op_in_lars

Merge pull request !1231 from zhoufeng/label-assign

Merge pull request !1228 from liuxiao/UnsortedSegmentMin

Merge pull request !1235 from xiefangqi/xfq_del_CRLF

Merge pull request !1224 from JichenZhao/squaresumall

Merge pull request !1230 from Margaret_wangrui/handle-the-case-which-the-input-of-summary-is-depend-type

Signed-off-by: zhoufeng <zhoufeng54@huawei.com>

Merge pull request !1226 from YuJianfeng/reduce_scatter

Merge pull request !1209 from liubuyu/master

Merge pull request !1222 from VectorSL/floatstatus-typecheck

Merge pull request !1218 from jinyaohui/pylint1

Merge pull request !1183 from candanzg/implicit_type_conversion

Merge pull request !1221 from jiangjinsheng/bn_training_update_v2

Merge pull request !1187 from yangzhenzhang/ckpt-and-restore-parameter-shape

Merge pull request !1219 from YuJianfeng/master

Merge pull request !863 from zjun/fix_codedex

Merge pull request !1207 from jinyaohui/add_context

Merge pull request !1217 from zhangbuxue/add_attr_for_conv2d_bprop_input

Merge pull request !1202 from zjun/fix_tensor_print

Merge pull request !1213 from Margaret_wangrui/create-new-parameter-from-parameter

Merge pull request !1204 from caifubi/support-hccl-multi-group

Merge pull request !1135 from kisnwang/add-group-for-allreduce-fusion

Merge pull request !1078 from huanghui/lars-v2-fission-pass

1.Support Broadcast op
2.Support communication op as graph output
3.Optimize Communication op memory alocation
4.support hccl multi-group

Merge pull request !1197 from jinyaohui/pylint1