einsum support complex and add unittest.

* ssd pullsparseptr

* update codestyle

* reduce redundancy

* python code style

* fix int8 ut

* rmsprop for xpu. test=kunlun

* minor fix (follow comments). test=kunlun

* add ort clone interface

* paddle2onnx update to 1.0.0rc

* ort input_tensor use mutable data of scope

* refine dist_grad kernel

* fix cpu kernel bug

* Pybind JitLayer VarBase Function and add python UT

* Add multi program load UT

* Fix UT place error

* Update jit.save param name

* Remove some comments

* Polish cmakelists

* Polish JitLayer in Python

* Fix comments

* fix_pool

* fix pool_op_plugin

* refine dist kernel, reuse norm

* follow comments

* copy onnxruntime.dll to c++ test folder in windows

* remove ut that failed due to onnxrumtime.dll

* test_api_impl failed of diff

* use TARGET to make sure if the test exist; use POST_BUILD to add copy command

* Fix nan in fast_ln_fwd_kernel when cols > 1024

* delete blas

This reverts commit bbe99555.

* feat(): dynamic_to_static support for ipu.

* fix(): format fix.

* fix format

* fix cpplint error

* use phi::errors

* fix format

* fix format

* fix(): add api to restore patched function.

* fix(): identity_loss uses cpu place as expected kernel type.

* doc(): add IPU dy2static related docs.

* fix(): combine test cases.

* fix format

* fix comment

* fix format

* apply comment

* fix compiling

* fix(): align docs.

* fix(): fix identity_loss function docs.

* fix(): adjust mean and sum in identity_loss.

* fix(): minor docs.

* move API to paddle.incubate.identity_loss

* fix UT
Co-authored-by: Nzhaorui chen <zhaoruic@graphcore.ai>

* fused_gate_attention manual code in eager

* fix deriv with inplace

* fix double grad bugs

* remove additional file

* fix compat dygraph mode

* fix yaml remove additional yaml

* fix slice double grad error and auto code gen logic error for higher order differentiate

* fix fix_higher_order_deriv

* remove additional include

* fix fix_higher_order_deriv

* fix for binary kernels

* fixed performance for elementwise, reduce and concat

* added comment

* CI fix

* CI fix

* added formatting

* reverted one file

* Revert "reverted one file"

This reverts commit 54725e1c62318d3a18913821200e973816751019.

* Revert "added formatting"

This reverts commit b9795dd253d755a329376d7ab0542860aa7815c6.

* added enforcing oneDNN BF16 reduce kernel

* fix for eltwise and reenabled reshape kernels

* fix for binary handler

* added formatting

* referted changes for flatten,squeeze and reshape ops

* Fc add any to input format

* Pre-commit changes

* support inpus is weight

* merge prepare_data and prepare_phi_data in static graph

* fix bug

* fix data transform bug

* fix bug

* fix unittest of cinn

* not run startup program in constructor of StandaloneExecutor

* clear interface of standalone executor

* clean debug code

* fused_gate_attention manual code in eager

* Menual fused_feedforward in eager

* fix test case