Merge pull request !282 from chujinjin/fix_pynative_conv_pf

Merge pull request !25 from zhangbuxue/unfold-develop

Merge pull request !331 from ZhouFeng/modify-whl-file-name

Merge pull request !336 from guozhijian/revert_5c2ded8d

This reverts commit 5c2ded8d.

Merge pull request !303 from zhaoting/add-YOLOv3-infer-scipt-and-change-dataset-to-MindRecord

Merge pull request !320 from anzhengqi/I1E0QV-fix-parse_columns

Merge pull request !328 from zjun/Modify_akg_register

Merge pull request !325 from fary86/fix-batchnorm-doc-and-slog-path-duplication

Merge pull request !305 from 万万没想到/fix-format-in-examples

Merge pull request !243 from h.farahat/nested_repeat

Merge pull request !318 from pengyanjun/fix_get_cladd_indexing_warning

Merge pull request !294 from zhaozhenlong/cell/ssim

Merge pull request !312 from xiefangqi/xfq_apply_branch

Merge pull request !121 from thlinh/dev_Apr02_add_watch_for_renormalize

Merge pull request !306 from limingqi107/master

twice in log

Merge pull request !278 from ZhouFeng/package

Merge pull request !311 from VectorSL/select

Merge pull request !277 from guozhijian/fix_read_with_exact_option

Merge pull request !274 from ZPaC/gpu-backend-supports-multiple-streams

Merge pull request !301 from dengwentao/ci_st

Merge pull request !214 from Maoweiyong/modify-gpu-op-register

Merge pull request !293 from zjun/Modify_all_tbe_op

2.GPU commnication stream and compute stream overlap.

Merge pull request !295 from gongchen/fix_free_cell_obj

Merge pull request !298 from gongchen/fix_allreduce_control_depend