* Relu6

* remove fluid handler

* add individual kernel signature

* coding style

* replace bounded_relu with clip

* whitespace

* code style

* fix concat bug

* fix ci bugs

* fix ci bugs

* support input mask

* add gpu kernel for transfer layout

* comment error throw

* fix: flag setting in testcase; add condition check for raising error

* fix typo

* fix: add error type for PADDLE_THROW

* remove kernel fallback in data_transfer.cc

* remove useless variable definition

* [CodeStyle] reformat test_error

* update lineno

* remove test_error from yapf whitelist

* try format test_origin_info

* try to fix origin info test case

* remove future import

* remove test_origin_info from yapf excludes

* empty commit, test=document_fix

* empty commit

* phi support xpu black list

* fix clip_extra code in remove_training_info

* revert rnn opmaker clear

* [Eager] math op sink to Cpp level

* fix ci errors

* draft version

* support + and - operator under cpp directly

* add static test

* polish code

* promote types or unify right type to left

* recover static test case

* polish code and fix some ci errors

* support complex and polish code

* fix conflicts

* fix windows ci errors

* fix windows-inference-ci errors

* polish and fix tests

* fix test case

* polish code

* [Eager, Performance optimization] support multiply( * operator) to sink to Cpp layer

* rm useless glog

* [Eager, Performance optimization] support divide( / and // operator) to sink to Cpp layer

* polish code

* polish code and fix code-format

* polish code

* fix CI

* polish code

* update test

* support div operator under cpp

* fix scalar as input

* Polish div logic, fix ci test

* fix errors

* init dropout

* small format fix

* fix pr comments

* add value test

* [Auto Parallel] Imporve the user-defined fetches and logging

* [Auto Parallel] Make Engine class callable

* [Auto Parallel] Update the data loading of tuner

* half2

* add epsilon

* [Paddle Inference]support n lookup_tables fuse to embeddinglayernorm(3)

Co-authored-by: NLi Min <11663212+limin2021@users.noreply.github.com>
Co-authored-by: Zhou Wei <1183042833@qq.com>
Co-authored-by: littletomatodonkey <dazhiningsibuqu@163.com>
Co-authored-by: Nzhupengyang <1165938320@qq.com>
Co-authored-by: NSiming Dai <908660116@qq.com>
Co-authored-by: Njiangcheng <thisjiang@qq.com>
Co-authored-by: NGuanghua Yu <742925032@qq.com>
Co-authored-by: NTeFeng Chen <ctfeng66@163.com>
Co-authored-by: NZhong Hui <zhonghui.net@gmail.com>
Co-authored-by: Nliu zhengxi <380185688@qq.com>
Co-authored-by: NJason <928090362@qq.com>
Co-authored-by: NDingjiawei <327396238@qq.com>
Co-authored-by: NChen Weihang <chenweihang@baidu.com>

* add readme for phi

* polish details, test=document_fix

* refine gil use

* [CodeStyle] remove all future import

* revert test_error.py

* restore future import in example code

* - Conv grad changed for MD

* - lint

* - compilation fix

* yet another lint

* fix libpaddle soname mismatch error

* fix windows failed

* polish linux and windows make impl

* unify winddows lib name

* fix windows error

* revert copy dst change

* revert naming change

* revert windows change

* fix gpups compile failed

* it is a test for my idea,test=coverage

* it is a test,test=coverage

* it is a test,test=coverage

* optimizing coverage ci for build develop twice

* it is a test to delete a unnitest,test=coverage

* optimizing pr ci coverage