* fix some slice bug, test=develop

* refine, test=develop

[KP] Add unittests for brelu,ceil,celu,elu,floor,hard_shrink,hard_sigmoid,log1p,logsigmoid,relu6,silu,soft_relu,softsign,swish (#40448)

* solve unexecuted UT

* add 24 activation op UT

* append swish&thresholded_relu to kpfirst_list

* rm thresholded_relu

* [AutoParallel] Converter
Converter API

[multiprocessing] Add paddle.incubate.multiprocessing for sharing tensors  between python processes. (#37302)

* Add support for paddle.multiprocessing
* move multiprocessing to incubate.

* refine partial_program

* fix code for test_mnist.py train

* support quantify UT

* make __fake_vars and _double_grads to lazy

* fix comments

* [custom kernel] fix static object de-initialize bug

* fix text

* fix text

* refine log info

* update reshard for while sub block

* fix code format error

* add tril_triu for xpu, *test=kunlun

* add tril_triu for xpu, *test=kunlun

* add tril_triu for xpu, *test=kunlun

* add tril_triu for xpu, *test=kunlun

* add tril_triu for xpu, *test=kunlun

* move dropout to phi; test=develop

* fix xpu, npu compile error; test=develop

* fix the full_like with fill the value of inf

* update the test case for the fill_any_like

* updae the comments for the full_like

* adapt run_program OP for eager

* fix program_id

* refine code

* fix test

* fix time of utest

[optest]: fix transpose, support  different parameter name between python_api and KernelSignature. (#40258)

* optest: fix transpose

* fix

* update ipu UTs part1

* rename ut

* sync api changes

* update uts for new api

* update use_ipumodel()

* update use_ipumodel()

* split pr

* update ipu UTs part3

* rename uts

* sync api changes

* update uts for new api

* update use_ipumodel()

* split pr

* add python profiler package

* update according to review

* fix bug

* fix bug

* fix bug

* add unit test

* Revert "add unit test"

This reverts commit 4e69ff71b0645e069afe5dd8fea0d07717852c48.

* reduce for pr

* add unit test

* modify for pr

* fix unittest

* update for ci coverage

* modify according to review

* fix bug

* improve coverage

* add profiler code

* add statistic code

* reduce content for pr

* fix fold python examples, test=develop

* fix size type, test=develop

* fix python example, test=develop

* fix fold shape check

* fix fold dygraph mode, test=develop

* add pg_hccl

* update ipu UTs part4

* rename uts

* sync api changes

* update uts for new api

* update ipu UTs part2

* clean git

* rename ut

* rename ut 1

* sync api changes

* update uts for new api

* update uts for new api

* fix re-define

* [MLU] add fleet init api and collective api pytest for mlu

* fix no value for argument 'data_type' in method call

* add profiler helper

* fix unittest

* improve test coverage rate

* add python profiler package

* update according to review

* fix bug

* fix bug

* fix bug

* add unit test

* Revert "add unit test"

This reverts commit 4e69ff71b0645e069afe5dd8fea0d07717852c48.

* reduce for pr

* add unit test

* modify for pr

* fix unittest

* update for ci coverage

* modify according to review

* fix bug

* improve coverage

* add python api test in TestOp

* test_python_api if self.python_api is set

* fix code by CR