* [CodeStyle] add pre-commit hook `remove-tabs` for cpp files

* empty commit, test=document_fix

* [CodeStyle] remove tabs in cpp files

* update comment format

* [Eager] polish clone interface

* rm clone in python, add clone in eager_method.cc

* unexpose audio ParameterError

* clean audio utils api

* [Paddle Inference]support n lookup_tables fuse to embeddinglayernorm(1): add some funtion for embedding

uniform logger manager in FleetAPI.
hidde API under distributed/utils which users don't need.

* optimize adaptive_pooling_op (forward)

* fix bug of AdaptiveKernelMaxPool2dWithIdx

* fix bug of AdaptiveKernelPool2D

* init

* remove softmaxop

* merge dev

* correct dir

* style

* Convert split, pad and pad3d kernels

* Convert slice+grad oneDNN fluid kernels to PHI

* change out->mutable_data to dev_ctx.Alloc

* First approach

* Shape kernel corrected

* Compilation error fixed

* Resize corrected

* Registered types added

* Mistake corrected & types added

* sum kernel deleted

* update for py3.6.

* update for py_3.6

* Support matmul_v2 in PaddleTensorRT

* [Paddle Inference]support n lookup_tables fuse to embeddinglayernorm(2)

* back fl

* delete ssl cert

* .

* make warning

* .

* unittest paral degree

* solve unittest

* heter & multi cloud commm ready

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* .

* fl-ps v1.0

* .

* support N + N mode

* .

* .

* .

* .

* delete print

* .

* .

* .

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* fix bug

* .

* .

* fl-ps with coordinator ready

* merge dev

* update message parse only

* update fl client scheduler

* fix bug

* update multithreads sync

* fix ci errors

* update role_maker.py

* update role_maker.py

* fix ci error: windows py import error

* fix ci error: windows py import error

* fix windows ci pylib import error

* add dump fields & params

* try to fix windows import fleet error

* fix ps FLAGS error

* fix logging risk

* fix logging possible risk

* write trainer_desc file

* support split sparse params in local & remote

* fix import paddle.fluid.core.PSGPU

* fix import paddle.fluid.core.PSGPU

* add remote_sparse & local_sparse config

* fix unittest

* fix test_dist_fleet_geo table error

* fix PADDLE_ENFORCE error

* fix other's pr conflict

* forbidden ssd table

* .

* recover ssd table code

* recover file mode

* debug auc 0.5

* adapt for nn fl-ps

* adapt for nn fl-ps

* add learning_rate_0 intializer op

* recover ssd table

* modify file mode

* flps del fake-init op

* Move ITensor construction for Weight (persistable variable) from OpConvert to TensorRTEngine.

* move_merge_selected_rows

* update code

* [JitLayer]Erase out vars to avoid data rewrittinig

* Fix code comments

* remove no need grad allreduce communication when sharding-dp

* remove no need grad allreduce communication when sharding-dp

* bugfix

* bugfix

* bugfix