* Enable check_cinn on some tests

Tests: bitwise, compare, shape, assign_value, sum, expand_v2,
lookup_table, lookup_table_v2

* Enable more CINN tests

Tests with CINN: expand_v2, matmul, matmul_v2, mul, norm, one_hot_v2
Add target select in cinn_launch_op

* Revert test_mul_op

* Improve op unit tests

* remove op.py

* [Zero-Dim] change Tensor.numpy() usage to other equivalent usage, avoid hack (#52197)

* [BugFix] fix compute error in fused_dropout_add (#52261)

* fix bg

* add utest

* add utest

* [CodeStyle][UP034] remove (()) cases (#52060)

* add up34

* modify var name in loop

* revert changes in test_slice

* Revert "modify var name in loop"

This reverts commit 6d748e371afb417054ed0c6b36fd11e87959a90d.

* temporarily ignore test_slice.py

* add comment

* empty commit, re-trigger all ci

* fix inc

---------
Co-authored-by: NSigureMo <sigure.qaq@gmail.com>

* [AMP OP&Test] add unittest for log_softmax (#52264)

* Fix_Linux_[-Wterminate]warning (#52186)

* [CustomOP Inplace] Automap inplace dtype and shape, prepare for vector<Tensor> output (#52214)

* [CustomOP Inplace] Automap inplace dtype and shape, prepare for vector<Tensor> output

* delete dtype,shape func of multi_inplace op

* [CustomOP Inplace] Automap inplace dtype and shape, support vector<Tensor> output

* [CustomOP Inplace] Auto-generate python API for inplace vector<Tensor> output

* [AMP OP&Test] add float16 optest for reshape_op (#51678)

* [AMP OP&Test] add float16 optest for reshape_op

* add public_python_api

* [AMP OP&Test] Add fp16/bf16 to clip op (#52158)

* add fp16/bf16 to clip op

* fix as reviewed

* update test_clip_op.py

* update test_clip_op.py

* fix bug

* fix code style

* fix bug

* fix bug

---------
Co-authored-by: Zhou Wei <1183042833@qq.com>
Co-authored-by: NShenLiang <1422485404@qq.com>
Co-authored-by: N张春乔 <83450930+Liyulingyue@users.noreply.github.com>
Co-authored-by: NSigureMo <sigure.qaq@gmail.com>
Co-authored-by: NCcc <52520497+juncaipeng@users.noreply.github.com>
Co-authored-by: NGalaxy1458 <55453380+Galaxy1458@users.noreply.github.com>
Co-authored-by: NHongyuJia <jiahongyu@baidu.com>
Co-authored-by: Nzhaoyingli <86812880+zhaoyinglia@users.noreply.github.com>
Co-authored-by: Nwuyefeilin <30919197+wuyefeilin@users.noreply.github.com>

* delete old dygraph op test

* remove fluid.data

* fix typro

* fix somme unitest error

* fix conflicts

* fix sample code error

* fxi sample coder error

* fxi sample code error

* fxi sample code error

* fix xpu test error

* fix xpu test error

* Delete ps_pb2.py

* fix test error

* fix typro

* fix sample code error

* fix comments

* fix test norm op data

* fix sample code error

* fix conflicts

* isort all files

* revert conflicting files

* revert conflicting files

* revert conflicting files

* revert conflicting files

* revert conflicting files

* update config

* re-blacken python code

* temporarily disable date and diff_py_file

* skip a format

* [CodeStyle][F401] remove unused imports in unittests/mkldnn

* fix some increment

[CodeStyle] remove compat module (long_type, int_type, get_exception_message, floor_division) (#46686)

* [CodeStyle] remove all future import

* revert test_error.py

* restore future import in example code

* 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

* add int16 kernel for lookup_talbe and dequantize_abs_max op

* Fix wrong out dtype from helper.input_dtype

* add unittest

* remove disable_static in op_test

* fix param name typo

* remove return in op_test teardown, test=develop
* add check_grad for fp64 and other type
* update white list

* change several tests to use the right parent class, test=develop

* add dtype for TestLoDTensorAndSelectedRowsOp, test=develop

There are PythonAPI tests in Op's unittest which don't need to inherit OpTest class.

* add int8 kernel to lookup_table op and add dequantize op test=develop

* change paddle_enforce to paddle_enforce_eq test=develop

* change copyright and change some not suitable code test=develop

* remove debug log test=develop

* replace GetInputType with IndicateVarDataType test=develop

* fix EmptyGradMaker test=develop

* fix diff between cpu and gpu test=develop

* use memcopy when int8_t test=develop

* enhance embedding error message test=develop

* enforce .h error test=develop

* fix unittest code test=develop

* Fix fp16 dtype in embedding test=develop

* add import warnings test=develop

* refine regularization for selected_rows

* clean lookup_table

* refine rpc_server_test

* temporally disable rpc_server_test

* fix rpc_server_test

* add unit test

Currently, our tests run with 2 GPUs, the init time is absurdly long:
about 4s for each process.  Currently, we run each OP test on
different processes. This PR:

1. create cmake function py_test_modules which will generate the
Makefile that runs a list of Python unittest module in a single Python
process.

2. move all "python unittest compatible" (e.g., used the unittest
package, not just a regular python file). from fluid/tests to
fluid/tests/unittests.

3. cmake now will run all OP tests in fluid/tests/unittests in a
single process, except the time-consuming tests, they are separated
into different processes to utilize parallelism. Please make sure to
use the unittest package if you put the python test file in
fluid/tests/unittests

4. remove all exit(0) from fluid/tests/unittests/*.py, exit(0) is used
to disable unittest, we can not do it when running all tests in a
single process since it will terminate the process without running the
other tests. Instead, the test is disabled in
fluid/tests/unittests/CMakeLists.txt. FIXME is added for each disabled
item. Please disable the unittest from
fluid/tests/unittests/CMakeLists.txt, instead of adding exit(0) to the
Python file, for all Python file in fluid/tests/unittests/.

5. add an option WITH_FAST_BUNDLE_TEST. When OFF, will run the unit
tests in separate process so that they can be tested individually.

* "fix decode bug"

* "follow commnet"

* "fix error"

* "fix hook bug"

* fix based comment

* fix copyright

* fix based on comment

* add copyright hook

* add copyright hook

* refine copyright hook

* "test copyright hook"

* fix check style

* fix ci

* init commit

* change some dir name

* add sparse support for sum op

* typo fix

* fix gpu build error

* fix unittest error

* typo fix

* infer var type and shape in op_test

* follow comments

* fix build error

* bypass some unittests depend on NetOp

* support sparse output for lookup table grad op

* refine codes

* fix gpu build error

* fix lookup table grad gpu kernel

* fix ci

* fix ci

* fix ci

* fix bug in lookup_table_grad op

* fix bug in test_word2vec

* register double kernel for some operators

* set is_sparse=True in test_word2vec

* fix lookup table grad op CUDA kernel bug

* disable test_modified_huber_loss_op temporarily

* disable test_lstm_unit_op temporarily