* add grad_clip pass

* add unittest

* add notes

* update func

* add dist_attr for new op

* support high order differential with data parallel overlap

* update unitest

* add quant pass

* bugfix

* remove scaling

* support rescale_grad opt

* add unitest

* add clip_grad

* fix comments

* add unittest

* update logger

* update reshard cost and cost estimator

* add unittest

* add dropout cost

* fix import error

* fix reshard code style error

* improve unittest coverage

* prune d2h memcpy for fp16 pass

* add collate_fn

* fix number of inputs

* update reshard for auto search

* fix unittest bug

* update dist tensor

* update reshard output

* fix unittests bug

* merge develop

* bugfix

* remove scaling

* support rescale_grad opt

* [Auto Parallel] Pybind11 ProcessMesh and DeviceMesh

* [Auto Parallel] Fix the unittest problem

* [Auto Parallel] Explicitly add the src file for auto_parallel target

* [Auto Parallel] Add the proto depedency explicitly

* [Auto Parallel] Fix the cmake bug on windows and mac

* [Auto Parallel] Remove the pybind11 header file in process_mesh.h

* add mul dist op cost

* add mul unittest

* [Dy2St]Support generate whole program in ProgramHelper for Engine

* support to(mode)

* fix word typo

* fix unittest

* fixed bug for pass & engine

* fixed bug for benchmark GPT-3

* add tuner & profiler

* add algorithms & config

* update comp cost

* add dist default op cost

* add dist fill constant batch size like op cost

* add elewise op cost

* add fill_constant_batch_size_like op cost unittest

* add unittest and remove fill_constant_batch_size_like grad op cost

* add to cmakelist

* fix unittest bug

* [dy2st]Add ProgramHelper to polish build program logic in autoparallel.Engine

* refine code

* fix unittest

* fix log_dir

* _enable_legacy_dygraph

* avoid sync with cpp in partition op

* delay eval & predict mode

* bugfix for gradient merge pass

* add comm init control by socket

* avoid single card instance failure

* generate default cluster

* add unittest

* update base cost

* update unittest of cost model

* add unittest

* add 'to_static' in engine api

* fix cmakelist

* fix op_role

* fix engine

* update op_role

* fixed bug for pass & engine

* fixed bug for benchmark GPT-3

* [Auto Parallel] Use a fast completion for data parallelism

* remove unuse cuSparse function

* [Auto Parallel] Fix some bugs of the fast dp completion

* [Auto Parallel] Add the cmake statements

* [Auto Parallel] Make the unittest adapt to the new interface

* [Auto Parallel] Modify the timeout of the unittest

* [Auto Parallel] Remove unnecessary comments
Co-authored-by: Nzhouwei25 <zhouwei25@baidu.com>

* fix fetch list

* fix unittest

* add fetch_list

* fix evaluate log

* tiny fix

* fix gradient merge

* bug fix

* update annotation

* use yapf to format all python file

* yapf exclude two unittests file for they rely on writing and reading file, and format will break them

* disable diff_py_file because too many diff files cause command following failed

* prepare only once

* adapt for 10 loss

* partitioner support optimizer