* change fluid.mean to paddle.mean

* reverse some old code examples

* refine tensor.dtype for bloat16

* refine test

* revert

* refine bfloat16 print

* Add BaseTransformer for dy2st error message

* Fix return_transformer error

* Polish dy2st error info in runtime

* Fix UT error

* Polish runtime error code

* fix init()

* delete test_device_context

* replace CPUDeviceContext with CPUContext

* fix test_scalar

* remove dot_op.cc

* fix compile

* convert graph to program to let sSandaloneExecutor supporrt CompiledProgram

* skip case that compiled_program._program is None

* execute CompiledProgram._compile to apply build_strategy

* 2nd part of transpose update

* add switch_auto_tune option.

* add some changes according to Ci

* refine the structure of auto_tune_base.

* merge develop changes

* reset the switch_set_range and change unittest of transpose auto-tune

* change the kernel auto-tune logits

* [Dy2Stat]Polish break/continue statement transformer logic

* re-write the unit tests for compare xpu op

*test=kunlun

* re-write the unit tests for compare xpu op

*test=kunlun
Co-authored-by: Nrunzhech <runzh_chen@sjtu.edu.cn>

* [Dy2Stat]Enhance nonlocal machanism while returning single var

* [Dy2Stat]Enhance nonlocal machanism while returning single var

* move standard apis to api.yaml

* revert erfinv

* delete dot_op.h

* fix dot

* rerun ci

* save multi program into one param and seperate model

* export class property

* add code

* add unit test

* support scope_guard

* fix test

* merge and add base support for non-local for

* for and while non-local support

* fix ci errors: v1

* fix bug

* fix

* fix code

* fix

* fix

* fix

* add relu6 kernel and yaml

* format files

* format code and fix bug

* fix build failed

* support complexd selected_rows kernel in yaml

* support configuring optimizer api in yaml

* fix data transform bug

* add comparisons trt converter

* skip xpu conv2d fp16 unitest
*test=kunlun

* minor
*test=kunlun

* [Dy2Stat]Polish all API name of _jst

* add unittest for PR43688