* set flags_selectedd_gpus for spawn

* add cond for unittest

* Delete test_no_single_process_using_multi_gpus_in_spawn.py

* Update spawn.py

* Update nccl_context.cc

* add alias for upsample, test=develop

* add alias for upsample

* fix example

* dot op support complex types

* matmul support complex types

* add test case

* matmul broadcast gradient support complex

* move conjFunctor to complex_functor.h

* update, test=develop

* add distributed.split, test=develop

* Add mkldnn nearest_interp and bilinear_interp op
* don't run mkldnn interpolate in default
* add interpolate_mkldnn_pass

* fix ut

Change-Id: I151e152919a1863db07792bffb42d0ca68995756

* Support quantizing program_desc, test=develop

* fix code bugs

* fix code bugs test=document_fix

* fix code bugs test=document_fix

* Fix unittest:test_imperative_skip_out

* fix cv2 rotation

fix the state_dict bug for the xpu

* rm check_import_scipy, rm chunk_eval and mean_iou in paddle.metric.__init__.py

* Revert "rm check_import_scipy, rm chunk_eval and mean_iou in paddle.metric.__init__.py"

This reverts commit 179ba8c2b22bc31fe8d8a126e31820792cbd0f4e.

* delete paddle.metric.chunk_eval and paddle.metric.mean_iou

* delete paddle.nn.clip and paddle.nn.clip_by_norm

* delete paddle.nn.functional.activation.hard_sigmoid and paddle.nn.functional.activation.hard_swish

* delete paddle.nn.Pool2D, paddle.nn.BilinearTensorProduct, paddle.nn.RowConv, paddle.nn.functional.row_conv

* fix extension import error

* fix unittest for row_conv and Pool2D

[Windows CI test] Enable unittest test_optimizer_in_control_flow and remove unnecessay code (#29851)

* fix conv_transpose bug when padding=same

* split callback unittest

* rm test_callback from timeout list

* update, test=develop

* try to add fwd op input dtypes

* refactor base impl

* return tmp_ins after dygraph prepare data

* fix typo found in debug

* polish comment & add complex net test

* revert detail change

* fix unittest failed

* add complex kernel condition control

* fix xpu test failed & polish comment

* polish details by review comments

* add support for complex grad accumulated

* add unittest for coverage

* update test dtype

* remove useless blank line

* Fix Windows unittest of test_fetch_lod_tensor_array

* feat: support check_nan_inf for kunlun device

* support kunlun stack

* minor

* reopen python coverage --include for test, test=develop

* if no .py file modified, not use coverage run, test=develop

* remove test code, test=develop

* add WITH_INCREMENTAL_COVERAGE, test=develop

* refine if else, test=develop

This reverts commit 067d7f1d.

* oneps (3/4)
Co-authored-by: NMrChengmo <cmchengmo@163.com>
Co-authored-by: Nmalin10 <malin10@baidu.com>
Co-authored-by: Nchengmo <chengmo@baidu.com>