* add docstring of three eager method

* test=docs_preview

* update element size bind

* update docs of numpy, clone, clear_gradient, element_size; test=docs_preview

* refine clear_gradient docs; test=docs_preview

* refine element_size docs; test=docs_preview

* add detach doc; test=docs_preview

* empty commit; test=docs_preview

* update signature; test=docs_preview

* refactor; test=docs_preview

* empty commit; test=docs_preview

* add docstring of Tensor

* empty commit; test=docs_preview

* refine TensorDoc; test=docs_preview

* refine TensorDoc; test=docs_preview

* remove extra indent in TensorDoc; test=docs_preview

* remove a space; test=docs_preview

* move docs ahead of implementation; test=docs_preview

* add doc

* refine

* refine

* refine

---------
Co-authored-by: Nwj-Mcat <1435130236@qq.com>
Co-authored-by: NSigureMo <sigure.qaq@gmail.com>

* add docstring of three eager method

* test=docs_preview

* update element size bind

* update docs of numpy, clone, clear_gradient, element_size; test=docs_preview

* refine clear_gradient docs; test=docs_preview

* refine element_size docs; test=docs_preview

* add detach doc; test=docs_preview

* empty commit; test=docs_preview

* update signature; test=docs_preview

* refactor; test=docs_preview

* empty commit; test=docs_preview

* add docstring of Tensor

* empty commit; test=docs_preview

* refine TensorDoc; test=docs_preview

* refine TensorDoc; test=docs_preview

* remove extra indent in TensorDoc; test=docs_preview

* remove a space; test=docs_preview

* move docs ahead of implementation; test=docs_preview

* refine

---------
Co-authored-by: Nwj-Mcat <1435130236@qq.com>
Co-authored-by: NSigureMo <sigure.qaq@gmail.com>

support stride

* simplify dist tensor namespace path

* fix tensor dist attr decl error

* polish dist_tensor details

* add unittest for coverage

* revert uselesss change

* skip test without dist

* [clang-tidy] enable readability-container-size-empty check

* fix test_custom_kernel Failed

* add clang-tid-10 in dockerfile

* add clang-tidy in dockerfile

* fix bug

* construct dist tensor

* move constructor to header

* change pyobject_isinstance

* change pyobject_isinstance

* up warning level

* numpy still vlog-0

* add flags for phi

* fix compile bugs

* fix ci bugs

* fix inference bugs

* fix cinn' bugs

* fix cinn bugs

* perfect code according comment

* fix ci bugs

* fix ci bugs

* support 0-D output and 0-D as indice in __getitem__

* fix tests

* fix inference and UT

* add unittest for setitem

* fix xpu test

* fix xpu 0-d

1. modify set_value op, use Scalars to represent attr `values`, instead of a bunch of attributs of various types; (#52408)

2. add program converter and set_value op as an example, which provides the functionality to convert `paddle::framework::ProgramDesc` between old and new formats(the differences are mainly some operators with incompatible updates in the definition);
3. program version and operator version map now are always saved when serializing `paddle::framework::ProgramDesc` to identify the version;
3. provide an option `legacy_format=false` in  serialization of `paddle::framework::ProgramDesc`, it decided whether to convert ProgramDesc back to a legacy format, which is compatible for paddle 2.4.2 or earlier versions to load and execute;
4. deserialization of `paddle::framework::ProgramDesc` is now automatically detecting whether the bytes it receives is in legacy format(contains any of the operators that has been incompatibly updated and have any attribute of type `Scalar`) and convert it to new format. But if you want a faithful deserialization without the automatic conversion, you can use protobuf's deserialization instead. Though it is not recommended, it can be used for the purpose of testing.

* move DataType from paddle::experimental to phi

* convert namespace

* convert namespace

* convert namespace

* clarify namespace

* convert more datatype

* Revert "convert more datatype"

This reverts commit 083b462959e6a22d4d8767707b628b95b396642e.

* convert more in auto_code_generator

* fix conflicts for XPU

* fix namespace conflicts

* fix errors

* Revert "fix errors"

This reverts commit f9d9958b54ee32141112274c8a5c3c381ab0f876.

* fix errors

* fix formatting

* fix copysign compile error on Windows

* fix more files' macro

* change feed_op to phi kernel

* fix ci bugs

* fix build bugs

* fix ci bugs

* fix compile bugs

* fix ci bugs

* perfect code

* perfect comment code

* fix install bugs

* modify code according comment

* remove visitor in feed_op

* modify according comment

* perfect code according comment

* add infershape

* fix py3 bugs

* fix getexpected kernel type

* fix getexpected kernel type

* fix ci bugs

* add registry for custom device

* fix py3 bugs

* fix floating point error

* fix py3 test bugs

* remove dumplicate element_size

* remove tensor_methon_* method

* add new tensor

* fix windows compile bugs

* fix ci bugs

* fix ci bugs

* fix ci bugs

* perfect according comment

* fix ci compile bugs

* add raw tensor

* fix ci bugs

* modify code by comment

* delete String

* [Eager] fix set_value logic when input's dtype is different

* value_tensor

* fix set_value logic when input's dtype is different

* [NPU] apply npu_identity to conv bn and copy2cpu, test=develop

* update npu identity to share data with x, test=develop

* address review comments, test=develop

* rm dependence to "convert_utils.h" in some files

* fix bugs

* replace DataType2String with DataTypeToString

* replace framework::DataTypeSize with phi::SizeOf

* mv convert_function from fluid to phi and rm old map

* recommit with pre-commit

* repalce ProtoVarType with ProtoDataType and update comment.

* fix error about include "dnnl.hpp"

* revert add dep mkldnn to convert_utils in phi

* add mkldnn deps in convert_utils.h in phi

* move deps to convert_utils.h in phi