* fluid clean: remove fluid.ir to framework.ir and some funcs form fluid.layer.io to incubate.

* delete fluid.ir

* update env setting

* update pass logic

* dist op support bf16

* backward cast update

* update setting

* update backward

* revert amp pass

* update fp16 backward logic

* register c_embedding bf16

* revert engine

* add unitest

* add unitest

* update unitest

* update cmake

* update math

* update math.py

* update unitest

* update unitest

* revise unitest

* revise unitest

* update unitest

* update unitest

* update unitest

* optimizing setup.py develop command

* add libpaddle.so

* modify setup.py

* add python/paddle/distributed/fleet/.gitignore

* add libpaddle.so to .gitignore

* add *.so to python/paddle/libs/.gitignore

* add new gitignore

* refine _found_inf

* find relevant testcase

* remove with_data_parallel

* trigger CI

* do not apply ParameterServerGraphOptimizer

* remove useless optimizer

* remove with_data_parallel in test_dist_base

* fix test_fleet_base_3

* only reserve changes for GraphExecutionOptimizer

* fix bug

* fix test_minst_dgc_nccl

* fix typo

* fix test_dist_mnist_gradient_merge

* rm TestDistMnistNCCL2DGCMultiCards

* fix optimizer conflicts

* fix dist_mnist

* fix test_dist_hapi

* delete test_fleet_graph_execution_meta_optimizer & test_fleet_graph_executor

* temporally not delete unittest

* fix unittests

* fix ci

* recover prune in python/paddle/hapi/model.py

* move fluid.utils to paddle.utils.layers_utils

* fix error

* delete original fluid layers utils

* remove import and old utils

* remove more old utils import

* change import path of fill_constant in the layers_utils.py

* fix mistake

* fix error

* expose in __init__.py

* for comment

* when change the ref of func is_sequence, it should change to the root of is_sequence instead

* for codecheck

* Fix bug of reduce_sum op. When input.numel() > INT32_MAX, its result
is wrong.

* Remove climits.

* Fix bug of hybrid parallel strategy with recompute using bf16.

* Fix bug of recompute_hybrid ctx.amp_dtype

* Fix bug of amp_dtype.

* Fix bug of auto_cast.

* move io

* fix ci bugs

* fix ci bugs

* fix py3 bugs

* fix example code

* fix example code

* fix text

* fix text

* deal with ci bugs

* perfect code according comment

* delete import batch

* [Auto Parallel] Speedup the completion process

* [Auto Parallel] Skip the property of dist_context when deepcopying

* [Auto Parallel] Remove the unnecessary print

* find relevant testcase

* remove with_data_parallel in test_dist_base

* fix bugs

* fix test_minst_dgc_nccl

* fix typo

* fix test_dist_mnist_gradient_merge

* rm TestDistMnistNCCL2DGCMultiCards

* fix dist_mnist

* polish code

* fix different PaddleCloudRoleMaker

* fluid clean: remove parallel and parallel_helper api

* fix: fix the import path.

* fix DataParallel imports issue

* fluid clean: remove dygraph_utils._append_bias_in_dygraph

* fix func name and imports

* remove transpiler

* Revert "remove transpiler"

This reverts commit 46044ccd52011d45d7026786d331f264a6a8f645.

* Revert "Revert "remove transpiler""

This reverts commit 80ad0945401b5b5efebac4baee0ec50a793d4405.

* codestyle

* fix setup

* fix

* fix

* main code

* unitest bug

* revert cmake

* fix dist_attr in data_parallel in optimization

* fix grad_clip pass when pp2

* fix dist_attr

* [mv fleet] mv fleet to distributed

* [mv fleet] for ci

* [mv fleet] for ci

* [mv fleet] solve ci of version

* fix set_grad_var_shape

* recover modify

* Revert "fixoptminizer _set_auxiliary_var bug (#50335)"

This reverts commit c44005f0.

* Revert "refine optimizer create accumulators (#50188)"

This reverts commit 244e7546.

* Revert "fix found_inf bug for custom optimizer (#50158)"

This reverts commit 64573f9f.

* Revert "refine amp scaler found_inf (#49864)"

This reverts commit 382e9a06.

* fix code format

* fix conflict

* Fix some typos.
Signed-off-by: Yulv-git <yulvchi@qq.com>

* pre-commit
Signed-off-by: Yulv-git <yulvchi@qq.com>

---------
Signed-off-by: Yulv-git <yulvchi@qq.com>

* [RM FLUID] trainer_pass&heter_trainer_pass
* [RM FLUID] rm distributed_strategy

* move fluid.transpiler.details

* fix setup

* fix

* fix setup

* add setup

* support xpu multi-card infer

* add ut

* clean code

* clean code

* fix

* fix

* fix

* fix

* auto parallel align tool

* modify function get_var's return

* add save and load in align_tool

* modify load function and save function

* add finding different ops in align tool

* full auto parallel align tool

add test file for auto parallel align tool

set timeout for test

modify get_backward_tmp_var function

add annotation for align tool

modify test file

modify code to restart CI

remove timeout

* set timeout

* move ascend_transpiler

* move transpiler.collective

* remver checkport

* fix

* fix import

* fix import

* add init

* fix

* fix

* fix